/* ============================================================
   安徽航驰货运代理有限公司 官网样式
   原创设计 · 深蓝香槟金高端视觉体系
   ============================================================ */
:root {
  --navy-950: #060d1d;
  --navy-900: #081226;
  --navy-800: #0c1b38;
  --navy-700: #12264d;
  --navy-600: #1a3563;
  --gold: #c8a35f;
  --gold-deep: #a9863f;
  --gold-light: #e6cb96;
  --ink: #1b2434;
  --muted: #5d6a7e;
  --line: #e5e9f0;
  --bg: #f6f8fb;
  --white: #ffffff;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Source Han Serif CN", "STZhongsong", "SimSun", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  --shadow: 0 18px 50px rgba(8, 18, 38, 0.12);
  --shadow-sm: 0 6px 22px rgba(8, 18, 38, 0.08);
  --radius: 6px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { max-width: 100%; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--white);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  /* 防止任何元素溢出产生横向滚动条 */
  overflow-x: clip;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.25s; }
ul, ol { list-style: none; }
.container { width: min(1200px, 92%); margin: 0 auto; }
.gold-text { color: var(--gold); }

/* ---------- 顶部信息条 ---------- */
.topbar {
  background: var(--navy-950);
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  letter-spacing: 0.06em;
  position: relative;
  z-index: 1002;
}
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 38px;
}
.topbar-tel {
  color: var(--gold-light);
  font-family: var(--serif);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.topbar-tel:hover { color: var(--gold); }
.topbar-tel svg { width: 14px; height: 14px; fill: currentColor; }

/* ---------- 导航 ---------- */
.site-header { position: sticky; top: 0; z-index: 1001; }
.navbar {
  background: rgba(8, 18, 38, 0.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(200, 163, 95, 0.22);
  transition: background 0.35s, box-shadow 0.35s;
}
.site-header.solid .navbar, .navbar.opaque {
  background: rgba(8, 18, 38, 0.97);
  box-shadow: 0 10px 30px rgba(6, 13, 29, 0.35);
}
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 92px;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.brand-mark-img { width: 58px; height: 58px; flex: 0 0 58px; object-fit: contain; display: block; }
/* 旧 SVG 兼容：保留同名类避免外部样式表声明失效 */
.brand-mark { width: 58px; height: 58px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.22; color: #fff; }
.brand-text strong {
  font-family: var(--serif);
  font-size: 27px;
  font-weight: 700;
  letter-spacing: 0.16em;
}
.brand-text em {
  font-style: normal;
  font-size: 11.5px;
  letter-spacing: 0.32em;
  color: var(--gold);
  text-transform: uppercase;
  margin-top: 2px;
}
.nav { display: flex; gap: 6px; }
.nav a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  letter-spacing: 0.05em;
  padding: 8px 15px;
  position: relative;
  white-space: nowrap;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: width 0.3s, left 0.3s;
}
.nav a:hover { color: #fff; }
.nav a:hover::after, .nav a.active::after { width: 60%; left: 20%; }
.nav a.active { color: var(--gold-light); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 10px; }
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  margin: 5px 0;
  transition: 0.3s;
}

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative;
  min-height: calc(100vh - 130px);
  display: flex;
  align-items: center;
  background: url("../images/hero.jpg") center 38% / cover no-repeat;
  color: #fff;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(100deg, rgba(6, 13, 29, 0.88) 0%, rgba(6, 13, 29, 0.62) 46%, rgba(6, 13, 29, 0.22) 100%);
}
/* 首屏轮播背景 */
.hero-slides { position: absolute; inset: 0; overflow: hidden; }
.hero-slide {
  position: absolute;
  inset: 0;
  background-position: center 38%;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0;
  transform: scale(1.06);
  transition: opacity 1.6s ease, transform 9s linear;
}
.hero-slide.on { opacity: 1; transform: scale(1); }
.hero-content { position: relative; z-index: 2; padding: 90px 0 130px; max-width: 720px; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--gold-light);
  font-size: 14px;
  letter-spacing: 0.4em;
  margin-bottom: 26px;
}
.hero-kicker::before { content: ""; width: 42px; height: 1px; background: var(--gold); }
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(34px, 5vw, 58px);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.hero h1 span { color: var(--gold); }
.hero-sub {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.82);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.hero-desc {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.6);
  max-width: 560px;
  margin-bottom: 40px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 18px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 38px;
  font-size: 15px;
  letter-spacing: 0.16em;
  border: 1px solid transparent;
  transition: 0.3s;
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-deep) 100%);
  color: var(--navy-950);
  font-weight: 700;
}
.btn-gold:hover { filter: brightness(1.12); box-shadow: 0 12px 30px rgba(200, 163, 95, 0.4); }
.btn-ghost { border-color: rgba(255, 255, 255, 0.5); color: #fff; }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-light); }
.btn svg { width: 16px; height: 16px; fill: currentColor; }

/* ---------- 数据带 ---------- */
.stats-band {
  background: var(--navy-900);
  border-top: 1px solid rgba(200, 163, 95, 0.25);
  color: #fff;
  margin-top: -1px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat-item {
  padding: 44px 20px;
  text-align: center;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
}
.stat-item:first-child { border-left: 0; }
.stat-num {
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1.2;
}
.stat-num small { font-size: 18px; margin-left: 2px; }
.stat-num .stat-word { font-size: 32px; letter-spacing: 0.08em; }
.stat-label { font-size: 14px; color: rgba(255, 255, 255, 0.72); letter-spacing: 0.14em; margin-top: 6px; }

/* ---------- 通用区块 ---------- */
.section { padding: 96px 0; }
.section.alt { background: var(--bg); }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 58px; }
.section-tag {
  display: inline-block;
  color: var(--gold-deep);
  font-size: 13px;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-title {
  font-family: var(--serif);
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 700;
  color: var(--navy-900);
  letter-spacing: 0.08em;
  line-height: 1.4;
}
.section-title::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  margin: 18px auto 0;
  background: linear-gradient(90deg, var(--gold), transparent);
}
.section-desc { color: var(--muted); font-size: 15px; margin-top: 18px; }

/* ---------- 关于我们（首页） ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-media { position: relative; }
.about-media img { width: 100%; height: 460px; object-fit: cover; box-shadow: var(--shadow); }
.about-media::before {
  content: "";
  position: absolute;
  inset: 22px -22px -22px 22px;
  border: 1px solid var(--gold);
  z-index: -1;
  opacity: 0.55;
}
.about-body .section-tag { text-align: left; display: block; }
.about-body h2 { text-align: left; }
.about-body h2::after { margin: 16px 0 0; }
.about-body p { color: var(--muted); font-size: 15px; margin-top: 18px; text-align: justify; }
.honor-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 28px;
}
.honor-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--line);
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
}
.honor-item svg { width: 26px; height: 26px; flex-shrink: 0; margin-top: 3px; }
.honor-item h4 { font-size: 14.5px; color: var(--navy-800); font-weight: 700; line-height: 1.5; }
.honor-item p { font-size: 12.5px; margin-top: 2px; }

/* ---------- 产品卡片 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.product-card {
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform 0.35s, box-shadow 0.35s;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}
.product-card:hover { transform: translateY(-8px); box-shadow: var(--shadow); }
.product-cover { position: relative; height: 240px; overflow: hidden; }
.product-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s; }
.product-card:hover .product-cover img { transform: scale(1.06); }
.product-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6, 13, 29, 0.55), transparent 55%);
}
.product-no {
  position: absolute;
  top: 18px;
  left: 22px;
  z-index: 2;
  font-family: var(--serif);
  color: var(--gold-light);
  font-size: 15px;
  letter-spacing: 0.3em;
}
.product-body { padding: 32px 30px 34px; flex: 1; display: flex; flex-direction: column; }
.product-body h3 {
  font-family: var(--serif);
  font-size: 23px;
  color: var(--navy-900);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.product-body p { color: var(--muted); font-size: 14.5px; flex: 1; text-align: justify; }
.product-link {
  margin-top: 22px;
  color: var(--gold-deep);
  font-size: 14px;
  letter-spacing: 0.2em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.product-link::after { content: "→"; transition: transform 0.3s; }
.product-link:hover::after { transform: translateX(6px); }

/* ---------- 专线网格 ---------- */
.route-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.route-card {
  position: relative;
  padding: 30px 28px 28px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: 0.3s;
  overflow: hidden;
}
.route-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s;
}
.route-card:hover { border-color: rgba(200, 163, 95, 0.55); transform: translateY(-4px); }
.route-card:hover::before { transform: scaleX(1); }
.route-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 700;
  color: var(--navy-900);
  letter-spacing: 0.04em;
}
.route-title svg { width: 22px; height: 22px; fill: var(--gold); flex-shrink: 0; }
.route-meta { margin-top: 12px; font-size: 13.5px; color: var(--muted); }
.route-meta b { color: var(--gold-deep); font-weight: 700; }

/* ---------- 保障体系 ---------- */
.promise-band {
  background: var(--navy-900);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.promise-band::before {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 420px;
  height: 420px;
  border: 1px solid rgba(200, 163, 95, 0.18);
  border-radius: 50%;
}
.promise-band::after {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(200, 163, 95, 0.12);
  border-radius: 50%;
}
.promise-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; position: relative; z-index: 2; }
.promise-item { text-align: center; padding: 20px 12px; }
.promise-item .icon-ring {
  width: 78px;
  height: 78px;
  margin: 0 auto 22px;
  border: 1px solid rgba(200, 163, 95, 0.5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.promise-item .icon-ring::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px dashed rgba(200, 163, 95, 0.35);
  border-radius: 50%;
}
.promise-item svg { width: 32px; height: 32px; fill: var(--gold); }
.promise-item h4 { font-family: var(--serif); font-size: 19px; letter-spacing: 0.1em; color: var(--gold-light); margin-bottom: 8px; }
.promise-item p { font-size: 13.5px; color: rgba(255, 255, 255, 0.65); }

/* ---------- 能力/流程 ---------- */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.cap-item {
  background: #fff;
  border: 1px solid var(--line);
  padding: 40px 34px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: 0.3s;
}
.cap-item:hover { border-color: rgba(200, 163, 95, 0.5); }
.cap-index {
  font-family: var(--serif);
  font-size: 52px;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px var(--gold);
  line-height: 1;
}
.cap-item h4 { font-family: var(--serif); font-size: 20px; color: var(--navy-900); margin: 18px 0 10px; letter-spacing: 0.06em; }
.cap-item p { font-size: 14px; color: var(--muted); text-align: justify; }

.flow-strip { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; margin-top: 54px; }
.flow-step { text-align: center; position: relative; padding: 0 10px; }
.flow-step .dot {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: var(--navy-900);
  color: var(--gold-light);
  border: 1px solid rgba(200, 163, 95, 0.6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  position: relative;
  z-index: 2;
}
.flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 32px;
  left: calc(50% + 42px);
  width: calc(100% - 84px);
  height: 1px;
  background: linear-gradient(90deg, var(--gold), rgba(200, 163, 95, 0.25));
}
.flow-step h5 { font-size: 15.5px; color: var(--navy-800); font-weight: 700; letter-spacing: 0.08em; }
.flow-step p { font-size: 12.5px; color: var(--muted); margin-top: 4px; }

/* ---------- 品类标签 ---------- */
.cargo-tags { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.cargo-tag {
  padding: 12px 28px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 15px;
  color: var(--navy-800);
  letter-spacing: 0.1em;
  box-shadow: var(--shadow-sm);
  transition: 0.3s;
}
.cargo-tag:hover { background: var(--navy-900); color: var(--gold-light); border-color: var(--navy-900); }

/* ---------- 合作航司 ---------- */
.airline-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
}
.airline-chip {
  padding: 14px 34px;
  border: 1px solid rgba(200, 163, 95, 0.4);
  font-family: var(--serif);
  font-size: 17px;
  letter-spacing: 0.2em;
  color: var(--gold-light);
  background: rgba(255, 255, 255, 0.03);
}

/* ---------- CTA ---------- */
.cta-band {
  background: linear-gradient(rgba(6, 13, 29, 0.82), rgba(6, 13, 29, 0.82)), url("../images/takeoff.jpg") center / cover no-repeat fixed;
  color: #fff;
  text-align: center;
  padding: 110px 0;
}
.cta-band h2 {
  font-family: var(--serif);
  font-size: clamp(26px, 3.4vw, 40px);
  letter-spacing: 0.14em;
  margin-bottom: 16px;
}
.cta-band p { color: rgba(255, 255, 255, 0.75); letter-spacing: 0.1em; margin-bottom: 38px; }
.cta-tel {
  font-family: var(--serif);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.08em;
  display: inline-block;
}
.cta-tel:hover { color: var(--gold-light); }

/* ---------- 子页横幅 ---------- */
.page-banner {
  position: relative;
  padding: 130px 0 96px;
  color: #fff;
  background: var(--navy-900);
  overflow: hidden;
}
.page-banner > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.45; }
.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(6, 13, 29, 0.9), rgba(6, 13, 29, 0.55));
  z-index: 1;
}
.banner-inner { position: relative; z-index: 2; }
.crumbs { font-size: 13px; color: rgba(255, 255, 255, 0.65); letter-spacing: 0.1em; margin-bottom: 18px; }
.crumbs a:hover { color: var(--gold-light); }
.crumbs i { font-style: normal; margin: 0 8px; color: var(--gold); }
.page-banner h1 {
  font-family: var(--serif);
  font-size: clamp(30px, 4vw, 44px);
  letter-spacing: 0.12em;
  font-weight: 700;
}
.page-banner h1 span { color: var(--gold); }
.banner-sub { margin-top: 14px; color: rgba(255, 255, 255, 0.72); font-size: 15px; letter-spacing: 0.14em; }

/* ---------- 详情页布局 ---------- */
.detail-grid { display: grid; grid-template-columns: 1fr 340px; gap: 50px; align-items: start; }
.article-block { margin-bottom: 44px; }
.article-block h2 {
  font-family: var(--serif);
  font-size: 26px;
  color: var(--navy-900);
  letter-spacing: 0.08em;
  padding-left: 16px;
  border-left: 4px solid var(--gold);
  margin-bottom: 20px;
  line-height: 1.4;
}
.article-block p { color: var(--muted); font-size: 15px; margin-bottom: 14px; text-align: justify; }
.article-block img { box-shadow: var(--shadow); margin: 10px 0 22px; width: 100%; }
.feature-list li {
  display: flex;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--line);
  color: var(--muted);
  font-size: 14.5px;
}
.feature-list li svg { width: 20px; height: 20px; fill: var(--gold); flex-shrink: 0; margin-top: 5px; }
.feature-list li b { color: var(--navy-800); }

/* 侧栏 */
.aside-card {
  background: var(--navy-900);
  color: #fff;
  padding: 36px 32px;
  margin-bottom: 26px;
  position: relative;
  overflow: hidden;
}
.aside-card::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(200, 163, 95, 0.25);
  border-radius: 50%;
}
.aside-card h3 {
  font-family: var(--serif);
  font-size: 21px;
  letter-spacing: 0.14em;
  color: var(--gold-light);
  margin-bottom: 20px;
  position: relative;
  z-index: 2;
}
.aside-card p { font-size: 14px; color: rgba(255, 255, 255, 0.75); margin-bottom: 10px; position: relative; z-index: 2; }
.aside-tel {
  display: block;
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.04em;
  margin-top: 18px;
  position: relative;
  z-index: 2;
}
.aside-tel:hover { color: var(--gold-light); }
.aside-nav { background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm); padding: 30px 0; }
.aside-nav h3 {
  font-family: var(--serif);
  font-size: 19px;
  padding: 0 30px 16px;
  color: var(--navy-900);
  border-bottom: 2px solid var(--gold);
  margin-bottom: 8px;
  letter-spacing: 0.1em;
}
.aside-nav a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 13px 30px;
  font-size: 14.5px;
  color: var(--muted);
  transition: 0.25s;
}
.aside-nav a::after { content: "›"; color: var(--gold); }
.aside-nav a:hover, .aside-nav a.active { background: var(--bg); color: var(--navy-900); padding-left: 36px; }

/* ---------- 专线大表 ---------- */
.route-table { width: 100%; border-collapse: collapse; background: #fff; box-shadow: var(--shadow-sm); }
.route-table th {
  background: var(--navy-900);
  color: var(--gold-light);
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0.14em;
  padding: 16px 20px;
  text-align: left;
  font-weight: 700;
}
.route-table td { padding: 15px 20px; border-bottom: 1px solid var(--line); font-size: 14.5px; color: var(--muted); }
.route-table tr:hover td { background: var(--bg); color: var(--navy-800); }
.route-table td:first-child { font-weight: 700; color: var(--navy-900); white-space: nowrap; }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.contact-card {
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  padding: 44px 34px;
  text-align: center;
  transition: 0.3s;
}
.contact-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.contact-card svg { width: 40px; height: 40px; fill: var(--gold); margin: 0 auto 20px; }
.contact-card h4 { font-family: var(--serif); font-size: 19px; color: var(--navy-900); letter-spacing: 0.1em; margin-bottom: 10px; }
.contact-card p { font-size: 14.5px; color: var(--muted); }
.contact-card .big { font-family: var(--serif); font-size: 22px; color: var(--gold-deep); font-weight: 700; }

/* ---------- 在线留言表单 ---------- */
.inquiry-form {
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  padding: 44px 42px;
}
.inquiry-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.inquiry-form .form-field { margin-bottom: 22px; }
.inquiry-form label {
  display: block;
  font-size: 13.5px;
  color: var(--navy-800);
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 9px;
}
.inquiry-form input[type="text"],
.inquiry-form textarea {
  width: 100%;
  padding: 13px 16px;
  font-family: inherit;
  font-size: 14.5px;
  color: var(--navy-900);
  background: var(--bg);
  border: 1px solid var(--line);
  outline: none;
  transition: 0.25s;
  -webkit-appearance: none;
  appearance: none;
}
.inquiry-form textarea { min-height: 128px; resize: vertical; line-height: 1.8; }
.inquiry-form input[type="text"]:focus,
.inquiry-form textarea:focus { border-color: var(--gold); background: #fff; box-shadow: 0 0 0 3px rgba(200, 163, 95, 0.14); }
.inquiry-form input::placeholder,
.inquiry-form textarea::placeholder { color: #9aa5b4; }
.inquiry-form .hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.inquiry-form .btn { border: 0; cursor: pointer; font-family: inherit; margin-top: 6px; }
.form-note { font-size: 12.5px; color: var(--muted); margin-top: 16px; }
.form-tip {
  padding: 15px 20px;
  margin-bottom: 22px;
  font-size: 14px;
  color: #1c6b3f;
  background: #edf8f1;
  border-left: 4px solid #2e9e5b;
}
.form-tip.err { color: #8d2222; background: #fdeeee; border-left-color: #c84040; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--navy-950); color: rgba(255, 255, 255, 0.7); }
.footer-main { padding: 74px 0 50px; display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 44px; }
.footer-brand .brand { margin-bottom: 20px; }
.footer-brand p { font-size: 13.5px; line-height: 1.9; text-align: justify; }
.footer-col h4 {
  font-family: var(--serif);
  font-size: 17px;
  color: var(--gold-light);
  letter-spacing: 0.2em;
  margin-bottom: 22px;
  position: relative;
  padding-bottom: 12px;
}
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 30px; height: 2px; background: var(--gold); }
.footer-col li { margin-bottom: 11px; font-size: 14px; }
.footer-col a:hover { color: var(--gold-light); padding-left: 4px; }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; }
.footer-contact svg { width: 16px; height: 16px; fill: var(--gold); flex-shrink: 0; margin-top: 5px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  padding: 24px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}
.footer-bottom .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.footer-bottom a { color: rgba(255, 255, 255, 0.55); }
.footer-bottom a:hover { color: var(--gold-light); }

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed;
  right: 28px;
  bottom: 112px;
  width: 46px;
  height: 46px;
  background: var(--navy-900);
  border: 1px solid rgba(200, 163, 95, 0.6);
  color: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: 0.35s;
  z-index: 999;
}
.back-top.show { opacity: 1; visibility: visible; transform: none; }
.back-top:hover { background: var(--gold); color: var(--navy-950); }
.back-top svg { width: 18px; height: 18px; fill: currentColor; }

/* ---------- 一键拨号（悬浮） ---------- */
.call-float {
  position: fixed;
  right: 28px;
  bottom: 34px;
  z-index: 1000;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 11px 22px 11px 14px;
  background: linear-gradient(135deg, var(--navy-800) 0%, var(--navy-900) 100%);
  border: 1px solid rgba(200, 163, 95, 0.55);
  border-radius: 999px;
  box-shadow: 0 12px 34px rgba(6, 13, 29, 0.35);
  color: #fff;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}
.call-float:hover {
  transform: translateY(-3px);
  border-color: var(--gold);
  box-shadow: 0 16px 40px rgba(6, 13, 29, 0.42);
}
.call-float .cf-ico {
  position: relative;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-light), var(--gold-deep));
  display: flex;
  align-items: center;
  justify-content: center;
}
.call-float .cf-ico svg { width: 19px; height: 19px; fill: var(--navy-950); position: relative; z-index: 2; }
.call-float .cf-ico::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid rgba(200, 163, 95, 0.7);
  animation: cfPulse 2.2s ease-out infinite;
}
@keyframes cfPulse {
  0% { transform: scale(1); opacity: 0.75; }
  70% { transform: scale(1.75); opacity: 0; }
  100% { transform: scale(1.75); opacity: 0; }
}
.call-float .cf-txt { display: flex; flex-direction: column; line-height: 1.25; white-space: nowrap; }
.call-float .cf-txt em {
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--gold-light);
}
.call-float .cf-txt strong {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

/* ---------- 滚动显现 ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .footer-main { grid-template-columns: 1fr 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .flow-strip { grid-template-columns: repeat(3, 1fr); gap: 30px 0; }
  .flow-step:nth-child(3)::after { display: none; }
}
@media (max-width: 860px) {
  .topbar-welcome { display: none; }
  .topbar-inner { justify-content: center; }
  .nav-toggle { display: block; }
  .navbar-inner { height: 76px; }
  .brand { gap: 12px; }
  .brand-mark-img { width: 48px; height: 48px; flex: 0 0 48px; }
  .brand-text strong { font-size: 23px; letter-spacing: 0.12em; }
  .brand-text em { font-size: 10.5px; letter-spacing: 0.26em; }
  /* 移动端菜单：绝对定位挂在导航栏下方
     关闭态 padding 必须为 0，否则深色背景会残留一条黑杠 */
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(8, 18, 38, 0.98);
    flex-direction: column;
    padding: 0 6%;
    gap: 2px;
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    pointer-events: none;
    opacity: 0;
    box-shadow: 0 18px 40px rgba(6, 13, 29, 0.4);
    transition: max-height 0.4s ease, padding 0.4s ease, opacity 0.3s ease,
      visibility 0.4s;
  }
  .nav.open {
    max-height: 480px;
    padding: 12px 6%;
    visibility: visible;
    pointer-events: auto;
    opacity: 1;
  }
  .nav a { padding: 13px 6px; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
  .nav a::after { display: none; }
  .hero { min-height: 620px; }
  .about-grid, .product-grid, .route-grid, .cap-grid, .contact-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-item:nth-child(3) { border-left: 0; }
  .promise-grid { grid-template-columns: 1fr 1fr; gap: 34px 10px; }
  .flow-strip { grid-template-columns: repeat(2, 1fr); }
  .flow-step::after { display: none; }
  .honor-list { grid-template-columns: 1fr; }
  .section { padding: 66px 0; }
  .footer-main { grid-template-columns: 1fr; gap: 34px; }
  .about-media img { height: 320px; }
  .inquiry-form { padding: 32px 24px; }
  .inquiry-form .form-row { grid-template-columns: 1fr; gap: 0; }
  /* 一键拨号：移动端改为底部整条吸底按钮 */
  .call-float {
    right: 14px;
    left: 14px;
    bottom: 12px;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 999px;
    box-shadow: 0 10px 30px rgba(6, 13, 29, 0.4);
  }
  .call-float .cf-txt { flex-direction: row; align-items: baseline; gap: 8px; }
  .call-float .cf-txt strong { font-size: 19px; }
  .back-top { right: 14px; bottom: 84px; width: 42px; height: 42px; }
  /* 避免吸底按钮遮住页脚最后一行 */
  .footer-bottom { padding-bottom: 84px; }
}

/* ---------- 手机端：字号收敛，避免大标题折行错位 ---------- */
@media (max-width: 640px) {
  .container { width: 90%; }

  /* 首屏 */
  .hero { min-height: 0; }
  .hero-content { padding: 62px 0 92px; max-width: 100%; }
  .hero-kicker { font-size: 12px; letter-spacing: 0.22em; gap: 8px; }
  .hero-kicker::before { width: 26px; }
  .hero h1 { font-size: 27px; line-height: 1.45; letter-spacing: 0.03em; }
  .hero-sub { font-size: 14px; letter-spacing: 0.04em; line-height: 1.75; }
  .hero-desc { font-size: 14px; line-height: 1.85; margin-bottom: 26px; }
  .hero-actions { gap: 12px; }
  .btn { padding: 13px 22px; font-size: 14px; letter-spacing: 0.08em; gap: 8px; }

  /* 数据带 */
  .stat-item { padding: 24px 8px; }
  .stat-num { font-size: 29px; }
  .stat-num small { font-size: 14px; margin-left: 1px; }
  .stat-num .stat-word { font-size: 22px; letter-spacing: 0.03em; }
  .stat-label { font-size: 12px; letter-spacing: 0.03em; line-height: 1.7; margin-top: 5px; }

  /* 栏目标题 */
  .section-title { font-size: 22px; letter-spacing: 0.04em; line-height: 1.5; }
  .section-title::after { width: 44px; margin: 14px auto 0; }
  .section-tag { font-size: 11.5px; letter-spacing: 0.2em; }
  .section-desc { font-size: 14px; line-height: 1.8; margin-top: 14px; }

  /* 内页横幅 */
  .page-banner h1 { font-size: 26px; letter-spacing: 0.05em; line-height: 1.4; }
  .banner-sub { font-size: 13.5px; letter-spacing: 0.05em; line-height: 1.7; }

  /* 底部 CTA */
  .cta-band { padding: 68px 0; }
  .cta-band h2 { font-size: 23px; letter-spacing: 0.05em; line-height: 1.5; }
  .cta-band p { font-size: 13.5px; letter-spacing: 0.03em; margin-bottom: 26px; }
  .cta-tel { font-size: 25px; letter-spacing: 0.03em; }

  /* 卡片与详情 */
  .route-title { font-size: 17.5px; letter-spacing: 0.02em; }
  .cap-index { font-size: 38px; }
  .article-block h2 { font-size: 20px; padding-left: 12px; }
  .aside-tel { font-size: 22px; }

  /* 标题换行更均衡，避免出现孤字 */
  .hero h1,
  .section-title,
  .cta-band h2,
  .page-banner h1,
  .stat-label { text-wrap: balance; }
}
@media (max-width: 380px) {
  .hero h1 { font-size: 24px; }
  .section-title { font-size: 20px; }
  .stat-num { font-size: 26px; }
  .stat-num .stat-word { font-size: 20px; }
  .cta-tel { font-size: 22px; }
}