/* ============================================================
   邦吉建材 · 主样式表 v3
   主色 #0f2340（深靛蓝）  强调 #c94a1b（砖红）
   中性 #f5f2ed（暖灰）    文本 #1a1a1a
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", sans-serif;
  color: #1a1a1a; background: #fff; line-height: 1.6;
}
a { color: inherit; text-decoration: none; transition: opacity .2s, color .2s; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
.form-honeypot { position: absolute !important; left: -9999px !important; width: 1px !important; height: 1px !important; opacity: 0 !important; pointer-events: none !important; }

/* ─────────── 导航 ─────────── */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 18px 0;
  transition: background .3s, padding .3s, box-shadow .3s;
}
.site-header.scrolled {
  background: rgba(255,255,255,.98); padding: 10px 0;
  box-shadow: 0 1px 24px rgba(15,35,64,.08); backdrop-filter: blur(12px);
}
.nav {
  max-width: 1280px; margin: 0 auto; padding: 0 40px;
  display: flex; align-items: center; justify-content: space-between; gap: 40px;
}

/* Logo：深色背景下反白，白色背景下原色 */
.nav-logo img {
  height: 44px; width: auto;
  filter: brightness(0) invert(1);
  transition: filter .3s;
}
.site-header.scrolled .nav-logo img { filter: none; }

.nav-menu { display: flex; list-style: none; gap: 36px; }
.nav-menu a {
  color: rgba(255,255,255,.9); font-size: 15px; font-weight: 500;
  padding: 6px 0; position: relative;
}
.nav-menu a::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0;
  height: 2px; background: #c94a1b; transform: scaleX(0); transition: transform .25s;
}
.nav-menu a:hover::after, .nav-menu a.active::after { transform: scaleX(1); }
.site-header.scrolled .nav-menu a { color: #1a1a1a; }

.nav-phone {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 15px; font-weight: 700; color: #fff;
  padding: 10px 20px; border: 1.5px solid rgba(255,255,255,.4);
  border-radius: 100px; transition: all .25s; font-variant-numeric: tabular-nums;
}
.nav-phone:hover { background: #c94a1b; border-color: #c94a1b; }
.site-header.scrolled .nav-phone { color: #0f2340; border-color: #d5d0c7; }
.site-header.scrolled .nav-phone:hover { color: #fff; background: #c94a1b; border-color: #c94a1b; }

.nav-toggle { display: none; width: 32px; height: 32px; position: relative; }
.nav-toggle span {
  position: absolute; left: 4px; right: 4px; height: 2px;
  background: #fff; transition: background .3s;
}
.nav-toggle span:nth-child(1) { top: 9px; }
.nav-toggle span:nth-child(2) { top: 15px; }
.nav-toggle span:nth-child(3) { top: 21px; }
.site-header.scrolled .nav-toggle span { background: #1a1a1a; }

/* ─────────── Hero ─────────── */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  overflow: hidden; background: #0f2340;
}
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center center;
  filter: grayscale(1) contrast(1.1);
  opacity: .35;
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(
    105deg,
    rgba(15,35,64,.7) 0%,
    rgba(15,35,64,.4) 55%,
    rgba(15,35,64,.15) 100%
  );
}
.hero-inner {
  position: relative; z-index: 2;
  max-width: 1280px; width: 100%; margin: 0 auto;
  padding: 140px 40px 120px;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  color: #d5d0c7; font-size: 13px; font-weight: 600;
  letter-spacing: .18em; text-transform: uppercase; margin-bottom: 32px;
}
.hero-eyebrow::before {
  content: ''; display: block; width: 40px; height: 1px; background: #c94a1b;
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  font-weight: 900; color: #fff;
  line-height: 1.05; letter-spacing: -.02em;
  margin-bottom: 32px; max-width: 900px;
}
.hero h1 em { font-style: normal; color: #c94a1b; }
.hero-lead {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: rgba(255,255,255,.75);
  max-width: 560px; margin-bottom: 48px; line-height: 1.7;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }

.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 18px 36px; background: #c94a1b; color: #fff;
  font-size: 15px; font-weight: 700; border-radius: 100px;
  letter-spacing: .04em; transition: all .25s;
}
.btn-primary:hover {
  background: #a83a10; transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(201,74,27,.35);
}
.btn-ghost {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 18px 36px; color: #fff;
  font-size: 15px; font-weight: 700;
  border: 1.5px solid rgba(255,255,255,.35);
  border-radius: 100px; letter-spacing: .04em; transition: all .25s;
}
.btn-ghost:hover { background: rgba(255,255,255,.1); border-color: #fff; }
.btn-dark {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 32px; background: #0f2340; color: #fff;
  font-size: 15px; font-weight: 700; border-radius: 100px;
  letter-spacing: .04em; transition: all .25s;
}
.btn-dark:hover { background: #1a3560; transform: translateY(-2px); }
.btn-outline {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 32px; color: #0f2340;
  font-size: 15px; font-weight: 700;
  border: 1.5px solid #0f2340; border-radius: 100px;
  letter-spacing: .04em; transition: all .25s;
}
.btn-outline:hover { background: #0f2340; color: #fff; }

/* Hero 底部产品导航 */
.hero-strip {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 3;
  background: rgba(255,255,255,.05);
  border-top: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(20px);
}
.hero-strip-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 40px;
  display: grid; grid-template-columns: repeat(4, 1fr);
}
.hero-strip a {
  padding: 24px 20px; border-right: 1px solid rgba(255,255,255,.12);
  display: flex; align-items: center; justify-content: space-between;
  color: #fff; transition: background .2s;
}
.hero-strip a:last-child { border-right: none; }
.hero-strip a:hover { background: rgba(255,255,255,.06); }
.hero-strip-name { font-size: 15px; font-weight: 700; letter-spacing: .04em; }
.hero-strip-arrow { opacity: .5; transition: transform .2s, opacity .2s; }
.hero-strip a:hover .hero-strip-arrow { opacity: 1; transform: translateX(4px); color: #c94a1b; }

/* ═══════════════════════════════════════════
   Hero v4 · 白底 · 左字右图 · 胶囊装饰
   视觉语言取自邦吉原版画册
═══════════════════════════════════════════ */
.hero-light {
  position: relative;
  min-height: 100vh;
  background: #fbfaf6;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero-capsules {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}
.cap {
  position: absolute;
  display: block;
  border-radius: 999px;
}
.cap-blue-1 {
  top: 8%; right: 22%;
  width: 380px; height: 120px;
  background: rgba(122,182,220,.28);
}
.cap-blue-2 {
  top: 34%; right: -80px;
  width: 520px; height: 160px;
  background: rgba(90,160,210,.22);
}
.cap-green-1 {
  top: 58%; right: 8%;
  width: 340px; height: 110px;
  background: rgba(126,185,34,.22);
}
.cap-green-2 {
  top: 78%; left: 42%;
  width: 200px; height: 60px;
  background: rgba(126,185,34,.15);
}
.hero-light-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 140px 40px 120px;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 80px;
  align-items: center;
}
.hero-text {
  position: relative;
  z-index: 2;
}
.hero-eyebrow-dark {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: #4a5162;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  margin-bottom: 36px;
}
.hero-eyebrow-dark .eyebrow-line {
  display: block;
  width: 40px;
  height: 2px;
  background: #7eb922;
}
.hero-text h1 {
  font-size: clamp(2.4rem, 5.2vw, 4.4rem);
  font-weight: 900;
  color: #0f2340;
  line-height: 1.08;
  letter-spacing: -.02em;
  margin-bottom: 36px;
}
.hero-text h1 em {
  color: #7eb922;
  font-style: normal;
}
.hero-lead-dark {
  font-size: clamp(1rem, 1.3vw, 1.1rem);
  color: #4a5162;
  max-width: 520px;
  margin-bottom: 44px;
  line-height: 1.75;
}
.btn-green {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 18px 36px;
  color: #fff;
  background: #7eb922;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  transition: all .25s;
  box-shadow: 0 6px 20px rgba(126,185,34,.28);
}
.btn-green:hover {
  background: #6aa01c;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(126,185,34,.4);
}
.btn-outline-dark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 18px 36px;
  color: #0f2340;
  background: transparent;
  border: 1.5px solid #c8ccd6;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  transition: all .25s;
}
.btn-outline-dark:hover {
  color: #fff;
  background: #0f2340;
  border-color: #0f2340;
}
.hero-media {
  position: relative;
  z-index: 1;
}
.hero-image-wrap {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: 240px;
  box-shadow: 0 40px 80px -20px rgba(15,35,64,.25),
              0 20px 40px -10px rgba(15,35,64,.15);
}
.hero-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.05);
  transition: transform .6s;
}
.hero-image-wrap:hover img { transform: scale(1.1); }
.cap-accent {
  top: -24px; left: -24px;
  width: 100px; height: 32px;
  background: #7eb922;
  z-index: 2;
}
.hero-strip-light {
  position: relative;
  z-index: 2;
  background: #fff;
  border-top: 1px solid #eae5d8;
  box-shadow: 0 -8px 24px rgba(15,35,64,.035);
}
.hero-strip-light .hero-strip-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.hero-strip-light a {
  padding: 22px 24px;
  border-right: 1px solid #eae5d8;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #0f2340;
  transition: background .2s, color .2s;
}
.hero-strip-light a:last-child { border-right: none; }
.hero-strip-light a:hover { background: #f5f2ed; color: #7eb922; }
.hero-strip-light .hero-strip-name {
  font-size: 15px; font-weight: 700; letter-spacing: .04em;
}
.hero-strip-light .hero-strip-arrow {
  color: #a8b1c2;
  transition: transform .2s, color .2s;
}
.hero-strip-light a:hover .hero-strip-arrow {
  color: #7eb922;
  transform: translateX(4px);
}

/* ─────────── 通用 ─────────── */
section { padding: 140px 0; }
.wrap { max-width: 1280px; margin: 0 auto; padding: 0 40px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  color: #c94a1b; font-size: 12px; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase; margin-bottom: 20px;
}
.eyebrow::before { content: ''; display: block; width: 32px; height: 1px; background: #c94a1b; }
.display-title {
  font-size: clamp(2rem, 4.5vw, 3.6rem);
  font-weight: 900; color: #0f2340;
  line-height: 1.1; letter-spacing: -.02em; margin-bottom: 24px;
}
.display-title em { font-style: normal; color: #c94a1b; }
.display-lead {
  font-size: 1.1rem; color: #4a5162;
  line-height: 1.75; max-width: 640px;
}

/* ─────────── 定位区 ─────────── */
.intro { padding: 160px 0; background: #f5f2ed; }
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: center; }
.intro-num {
  font-size: clamp(6rem, 12vw, 11rem); font-weight: 900;
  color: #0f2340; line-height: .85; letter-spacing: -.05em;
  font-variant-numeric: tabular-nums;
}
.intro-num-unit {
  display: inline-block; font-size: .3em; color: #c94a1b;
  font-weight: 700; vertical-align: top;
  margin-left: 8px; margin-top: .5em; letter-spacing: 0;
}
.intro-tag { display: block; margin-top: 24px; color: #6b7280; font-size: 15px; letter-spacing: .04em; }

/* ══════ 履历板块 ══════ */
.track {
  padding: 140px 0;
  background: #f5f2ed;
  position: relative;
  overflow: hidden;
}
.track::before {
  content: '';
  position: absolute;
  top: -120px; right: -120px;
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(201,74,27,.06), transparent 70%);
  pointer-events: none;
}

/* 顶部标题 */
.track-header {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  margin-bottom: 60px;
  gap: 40px;
  position: relative;
  z-index: 1;
}
.track-more {
  color: #0f2340;
  font-size: 15px;
  font-weight: 700;
  border-bottom: 1.5px solid #0f2340;
  padding-bottom: 4px;
  letter-spacing: .02em;
  white-space: nowrap;
}
.track-more:hover { color: #c94a1b; border-color: #c94a1b; }

/* 四格数据条 */
.track-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: #e5dfd0;
  border: 1px solid #e5dfd0;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}
.track-stat {
  padding: 44px 32px;
  background: #fff;
  transition: background .25s;
}
.track-stat:hover { background: #fdfcf8; }
.track-num {
  font-size: clamp(2.6rem, 5vw, 4rem);
  font-weight: 900;
  color: #0f2340;
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -.03em;
  font-variant-numeric: tabular-nums;
}
.track-unit {
  display: inline-block;
  font-size: .38em;
  color: #c94a1b;
  font-weight: 700;
  vertical-align: top;
  margin-left: 4px;
  margin-top: .8em;
  letter-spacing: 0;
}
.track-label {
  font-size: 15px;
  font-weight: 700;
  color: #0f2340;
  margin-bottom: 6px;
  letter-spacing: .02em;
}
.track-desc {
  font-size: 13px;
  color: #6b7280;
  letter-spacing: .02em;
}

/* 标杆项目卡 */
.track-projects {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  position: relative;
  z-index: 1;
}
.track-project {
  padding: 40px 36px;
  background: #fff;
  border-radius: 4px;
  border: 1px solid #e5dfd0;
  transition: all .25s;
}
.track-project:hover {
  border-color: #c94a1b;
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(15,35,64,.08);
}
.track-project-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: #c94a1b;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 4px 12px;
  background: rgba(201,74,27,.08);
  border-radius: 100px;
  margin-bottom: 20px;
}
.track-project-name {
  font-size: clamp(1.4rem, 2.2vw, 1.8rem);
  font-weight: 900;
  color: #0f2340;
  line-height: 1.2;
  letter-spacing: -.01em;
  margin-bottom: 10px;
}
.track-project-desc {
  font-size: 14px;
  color: #4a5162;
  line-height: 1.7;
}

/* 深色版：合作方类型卡 */
.track-project-more {
  background: linear-gradient(135deg, #0f2340 0%, #16304f 100%);
  border-color: #0f2340;
}
.track-project-more:hover {
  border-color: #c94a1b;
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(15,35,64,.2);
}
.track-project-more .track-project-tag {
  background: rgba(201,74,27,.2);
  color: #ff8656;
}
.track-project-more .track-project-name { color: #fff; }
.track-project-more .track-project-desc { color: rgba(255,255,255,.7); }

/* ─────────── 产品 ─────────── */
.products { padding: 140px 0; background: #fff; }
.products-header {
  display: grid; grid-template-columns: 1fr auto;
  align-items: end; margin-bottom: 80px; gap: 40px;
}
.products-header a {
  color: #0f2340; font-size: 15px; font-weight: 700;
  border-bottom: 1.5px solid #0f2340; padding-bottom: 4px;
  letter-spacing: .02em; white-space: nowrap;
}
.products-header a:hover { color: #c94a1b; border-color: #c94a1b; }

.products-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.product {
  position: relative; overflow: hidden; border-radius: 4px;
  background: #f5f2ed; aspect-ratio: 4/3;
  cursor: pointer; transition: transform .5s;
}
.product:hover { transform: translateY(-4px); }
.product img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .8s;
}
.product:hover img { transform: scale(1.06); }
.product-overlay {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 40px;
  background: linear-gradient(to top, rgba(15,35,64,.95) 0%, rgba(15,35,64,.4) 60%, transparent 100%);
  color: #fff;
}
.product-num {
  font-size: 13px; color: #c94a1b; font-weight: 700;
  letter-spacing: .1em; margin-bottom: 12px; font-variant-numeric: tabular-nums;
}
.product-name {
  font-size: clamp(1.4rem, 2.4vw, 2rem); font-weight: 800;
  margin-bottom: 8px; letter-spacing: -.01em;
}
.product-tag { font-size: 14px; color: rgba(255,255,255,.7); letter-spacing: .04em; }

/* ─────────── 数据条 ─────────── */
.stats { background: #0f2340; color: #fff; padding: 120px 0; }
.stats-header { max-width: 720px; margin-bottom: 80px; }
.stats .display-title { color: #fff; }
.stats .display-lead { color: rgba(255,255,255,.6); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
.stat { padding-top: 32px; border-top: 2px solid rgba(255,255,255,.15); }
.stat-key {
  font-size: clamp(2.5rem, 4vw, 3.6rem); font-weight: 900;
  color: #c94a1b; line-height: 1; margin-bottom: 20px;
  font-variant-numeric: tabular-nums; letter-spacing: -.02em;
}
.stat-label { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.stat-desc { font-size: 13px; color: rgba(255,255,255,.55); line-height: 1.6; }

/* ─────────── 场景 ─────────── */
.scenes { padding: 140px 0; background: #fff; }
.scenes-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; margin-top: 80px; }
.scene {
  position: relative; overflow: hidden; border-radius: 4px;
  background: #f5f2ed;
}
.scene-tall { grid-row: span 2; min-height: 640px; }
.scene-short { min-height: 304px; }
.scene img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s; }
.scene:hover img { transform: scale(1.04); }
.scene-overlay {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 40px;
  background: linear-gradient(to top, rgba(15,35,64,.9), transparent); color: #fff;
}
.scene-tag {
  display: inline-block; font-size: 12px; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; color: #c94a1b; margin-bottom: 8px;
}
.scene-title { font-size: 22px; font-weight: 800; letter-spacing: -.01em; }

/* ─────────── CTA ─────────── */
.cta { background: #c94a1b; color: #fff; padding: 120px 0; position: relative; overflow: hidden; }
.cta::before {
  content: '砖'; position: absolute; right: -80px; top: 50%;
  transform: translateY(-50%); font-size: 32rem; font-weight: 900;
  color: rgba(255,255,255,.04); line-height: 1; pointer-events: none;
}
.cta-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 40px;
  display: grid; grid-template-columns: 1fr auto;
  gap: 60px; align-items: center; position: relative; z-index: 1;
}
.cta h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 900;
  line-height: 1.15; letter-spacing: -.02em; margin-bottom: 16px;
}
.cta p { font-size: 1rem; color: rgba(255,255,255,.85); }
.cta-phone {
  display: block; font-size: clamp(2rem, 3vw, 2.6rem);
  font-weight: 900; color: #fff; letter-spacing: .04em;
  font-variant-numeric: tabular-nums; margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,.15);
}
.cta-phone:hover { color: #fef3ec; }
.cta-actions { display: flex; flex-direction: column; gap: 12px; align-items: flex-end; }
.cta-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 16px 32px; background: #fff; color: #c94a1b;
  font-size: 15px; font-weight: 700; border-radius: 100px;
  letter-spacing: .04em; transition: all .25s; white-space: nowrap;
}
.cta-btn:hover { background: #0f2340; color: #fff; transform: translateY(-2px); }
.cta-hint { font-size: 13px; color: rgba(255,255,255,.7); letter-spacing: .04em; }

/* ─────────── 页脚 ─────────── */
footer { background: #0a1729; color: rgba(255,255,255,.55); padding: 100px 0 32px; }
.foot-grid {
  max-width: 1280px; margin: 0 auto; padding: 0 40px;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 60px; padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.foot-brand img {
  height: 42px; width: auto;
  filter: brightness(0) invert(1);
  opacity: .95;
}
.foot-brand p { margin-top: 20px; font-size: 14px; line-height: 1.9; max-width: 300px; }
.foot-col h5 {
  color: rgba(255,255,255,.9); font-size: 12px; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; margin-bottom: 20px;
}
.foot-col ul { list-style: none; }
.foot-col li { margin-bottom: 12px; }
.foot-col a { font-size: 14px; color: rgba(255,255,255,.55); }
.foot-col a:hover { color: #fff; }
.foot-contact p { font-size: 14px; margin-bottom: 10px; color: rgba(255,255,255,.7); }
.foot-contact a { color: rgba(255,255,255,.9); font-weight: 500; letter-spacing: .02em; }
.foot-contact a:hover { color: #c94a1b; }
.foot-bottom {
  max-width: 1280px; margin: 0 auto; padding: 32px 40px 0;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: rgba(255,255,255,.35); flex-wrap: wrap; gap: 16px;
}
.foot-bottom a { color: rgba(255,255,255,.5); }
.foot-bottom a:hover { color: #fff; }

/* ─────────── 移动悬浮 ─────────── */
.float-contact {
  position: fixed; bottom: 24px; right: 24px; z-index: 90;
  display: none; flex-direction: column; gap: 12px;
}
.float-contact a {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0 22px; height: 50px; border-radius: 100px;
  font-size: 14px; font-weight: 700; color: #fff;
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
}
.float-phone { background: #0f2340; }
.float-inquiry { background: #c94a1b; }

/* ═══════════ 内页样式 ═══════════ */

/* 内页 Hero */
.page-hero {
  padding: 200px 0 100px;
  background: #0f2340;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(201,74,27,.15), transparent 50%);
}
.page-hero .wrap { position: relative; z-index: 1; }
.page-hero .eyebrow { color: #c94a1b; }
.page-hero h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 900; letter-spacing: -.02em;
  line-height: 1.1; margin-bottom: 24px;
  max-width: 900px;
}
.page-hero h1 em { font-style: normal; color: #c94a1b; }
.page-hero p {
  font-size: 1.1rem; color: rgba(255,255,255,.75);
  max-width: 640px; line-height: 1.7;
}

/* 面包屑 */
.breadcrumb {
  padding: 100px 0 0;
  background: #f5f2ed;
  font-size: 13px; color: #6b7280; letter-spacing: .04em;
}
.breadcrumb .wrap { display: flex; align-items: center; gap: 8px; }
.breadcrumb a { color: #4a5162; }
.breadcrumb a:hover { color: #c94a1b; }
.breadcrumb span.sep { color: #d5d0c7; }
.breadcrumb + section { padding-top: 60px; }

/* ─────────── 产品详情页 ─────────── */
.product-detail {
  padding: 100px 0;
  border-bottom: 1px solid #f0ebe3;
}
.product-detail:nth-child(even) { background: #f5f2ed; }
.product-detail-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: start;
}
.product-detail-img {
  border-radius: 6px; overflow: hidden;
  aspect-ratio: 4/3;
}
.product-detail-img img { width: 100%; height: 100%; object-fit: cover; }
.product-detail-info .eyebrow { margin-bottom: 16px; }
.product-detail-info h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 900; color: #0f2340;
  line-height: 1.15; letter-spacing: -.02em;
  margin-bottom: 20px;
}
.product-lead {
  font-size: 1rem; color: #4a5162;
  line-height: 1.75; margin-bottom: 32px;
}
.product-boundary {
  margin: -8px 0 36px;
  padding: 18px 20px;
  border-left: 3px solid #c94a1b;
  background: rgba(201,74,27,.06);
  color: #5d6470;
  font-size: .9rem;
  line-height: 1.75;
}
.spec-table {
  width: 100%; border-collapse: collapse;
  margin-bottom: 36px; font-size: .92rem;
}
.spec-table tr { border-bottom: 1px solid rgba(15,35,64,.1); }
.spec-table tr:last-child { border-bottom: none; }
.spec-table th, .spec-table td {
  padding: 16px 4px; text-align: left; vertical-align: top;
}
.spec-table th {
  width: 30%; color: #6b7280; font-weight: 600;
  font-size: .82rem; letter-spacing: .04em;
  text-transform: uppercase;
}
.spec-table td { color: #1a1a1a; font-weight: 500; }
.product-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ─────────── 工程案例页 ─────────── */
.projects { padding: 60px 0 140px; }
.filter-tabs {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 56px;
}
.filter-btn {
  padding: 10px 22px;
  border: 1.5px solid #d5d0c7;
  border-radius: 100px;
  background: transparent;
  font-size: 14px; font-weight: 600; color: #4a5162;
  transition: all .2s;
}
.filter-btn:hover { border-color: #0f2340; color: #0f2340; }
.filter-btn.active {
  background: #0f2340; color: #fff; border-color: #0f2340;
}
.projects-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; margin-bottom: 60px;
}
.project-card {
  position: relative; overflow: hidden;
  border-radius: 4px; background: #f5f2ed;
  aspect-ratio: 4/3;
  transition: transform .3s;
}
.project-card:hover { transform: translateY(-4px); }
.project-card img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .8s;
}
.project-card:hover img { transform: scale(1.06); }
.project-body {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 28px;
  background: linear-gradient(to top, rgba(15,35,64,.95), rgba(15,35,64,.3) 70%, transparent);
  color: #fff;
}
.project-tag {
  display: inline-block; font-size: 11px; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase;
  color: #c94a1b; margin-bottom: 8px;
}
.project-card h3 {
  font-size: 18px; font-weight: 800;
  margin-bottom: 4px; letter-spacing: -.01em;
}
.project-meta { font-size: 13px; color: rgba(255,255,255,.7); }

.projects-coming {
  text-align: center; padding: 60px 40px;
  background: #f5f2ed; border-radius: 6px;
  color: #4a5162;
}
.projects-coming p { margin-bottom: 24px; line-height: 1.8; }

/* ─────────── 技术中心 ─────────── */
.tech-section { padding: 60px 0 100px; }
.tech-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; margin-top: 60px;
}
.tech-card {
  display: block;
  padding: 40px 32px;
  border: 1.5px solid #e8e2d3;
  border-radius: 6px;
  background: #fff;
  transition: all .25s;
}
.tech-card:hover {
  border-color: #c94a1b;
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(15,35,64,.08);
}
.tech-num {
  font-size: 13px; color: #c94a1b; font-weight: 700;
  letter-spacing: .12em; margin-bottom: 20px;
  font-variant-numeric: tabular-nums;
}
.tech-card h3 {
  font-size: 20px; font-weight: 800; color: #0f2340;
  margin-bottom: 12px; letter-spacing: -.01em; line-height: 1.3;
}
.tech-card p {
  color: #4a5162; font-size: .92rem;
  line-height: 1.65; margin-bottom: 20px;
}
.tech-status {
  display: inline-block; font-size: 11px; font-weight: 700;
  padding: 4px 10px; border-radius: 100px;
  background: #fef3c7; color: #92400e;
  letter-spacing: .04em;
}
.tech-status.ready {
  background: rgba(201,74,27,.08);
  color: #c94a1b;
}
.tech-status.planned {
  background: rgba(21,87,176,.08);
  color: #1557b0;
}
.tech-card:focus-visible {
  outline: 3px solid rgba(201,74,27,.28);
  outline-offset: 3px;
}
/* 未发布（敬请期待）卡片：不可点、无 hover 上浮、视觉降权 */
.tech-card.is-planned {
  opacity: .62;
  cursor: default;
}
.tech-card.is-planned:hover {
  border-color: #e8e2d3;
  transform: none;
  box-shadow: none;
}

/* FAQ */
.faq { padding: 120px 0; background: #f5f2ed; }
.faq-list { max-width: 800px; margin: 60px auto 0; }
.faq-item {
  background: #fff; border-radius: 6px;
  margin-bottom: 12px; overflow: hidden;
  border: 1.5px solid transparent;
  transition: border-color .2s;
}
.faq-item.open { border-color: #c94a1b; }
.faq-q {
  width: 100%; text-align: left;
  padding: 24px 28px; background: none; border: none;
  font-size: 16px; font-weight: 700; color: #0f2340;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-icon {
  width: 24px; height: 24px; position: relative; flex-shrink: 0;
}
.faq-icon::before, .faq-icon::after {
  content: ''; position: absolute; left: 4px; top: 11px;
  width: 16px; height: 2px; background: #c94a1b;
  transition: transform .3s;
}
.faq-icon::after { transform: rotate(90deg); }
.faq-item.open .faq-icon::after { transform: rotate(0); }
.faq-a {
  max-height: 0; overflow: hidden;
  padding: 0 28px;
  transition: max-height .3s, padding .3s;
  color: #4a5162; font-size: .95rem; line-height: 1.75;
}
.faq-item.open .faq-a { max-height: 400px; padding: 0 28px 24px; }

/* ─────────── 联系页 ─────────── */
.contact { padding: 60px 0 120px; }
.contact-grid {
  display: grid; grid-template-columns: 1fr 1.4fr;
  gap: 80px; align-items: start;
}
.contact-info h2 {
  font-size: 1.6rem; font-weight: 900; color: #0f2340;
  margin-bottom: 40px; letter-spacing: -.01em;
}
.contact-item { margin-bottom: 32px; }
.contact-label {
  font-size: 11px; font-weight: 700; color: #c94a1b;
  letter-spacing: .12em; text-transform: uppercase;
  margin-bottom: 10px;
}
.contact-number {
  display: block; font-size: 1.8rem; font-weight: 900;
  color: #0f2340; letter-spacing: .02em;
  font-variant-numeric: tabular-nums; line-height: 1.2;
  transition: color .2s;
}
.contact-number:hover { color: #c94a1b; }
.contact-hint {
  font-size: 13px; color: #6b7280;
  margin-top: 6px; letter-spacing: .04em;
}
.contact-email {
  font-size: 1rem; color: #0f2340; font-weight: 700;
  border-bottom: 1.5px solid #0f2340;
  padding-bottom: 2px;
}
.contact-email:hover { color: #c94a1b; border-color: #c94a1b; }

.contact-form-wrap {
  background: #f5f2ed; padding: 48px;
  border-radius: 6px;
}
.contact-form-wrap h2 {
  font-size: 1.6rem; font-weight: 900; color: #0f2340;
  margin-bottom: 32px; letter-spacing: -.01em;
}
.inquiry-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label {
  font-size: 12px; font-weight: 700;
  color: #4a5162; letter-spacing: .06em;
  text-transform: uppercase;
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 14px 18px;
  border: 1.5px solid #d5d0c7;
  border-radius: 6px; background: #fff;
  font-size: 15px; font-family: inherit; color: #1a1a1a;
  transition: border-color .2s, box-shadow .2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: #c94a1b;
  box-shadow: 0 0 0 3px rgba(201,74,27,.1);
}
.form-full {
  width: 100%; padding: 18px 32px;
  background: #c94a1b; color: #fff;
  font-size: 15px; font-weight: 700;
  border-radius: 100px; letter-spacing: .04em;
  cursor: pointer; transition: all .25s;
}
.form-full:hover { background: #a83a10; transform: translateY(-2px); }
.form-note {
  font-size: 12px; color: #6b7280;
  text-align: center; margin-top: 8px;
}
.form-success {
  padding: 32px; background: #f0fdf4;
  border: 1.5px solid #bbf7d0; border-radius: 6px;
  text-align: center; color: #166534;
}

/* ─────────── 404 ─────────── */
.error-page {
  min-height: 80vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 120px 24px;
}
.error-code {
  font-size: 10rem; font-weight: 900;
  color: #f5f2ed; line-height: 1;
  letter-spacing: -.05em;
  font-variant-numeric: tabular-nums;
}
.error-title {
  font-size: 1.8rem; font-weight: 900;
  color: #0f2340; margin: 24px 0 16px;
}
.error-text { color: #4a5162; margin-bottom: 32px; }

/* ═══════════ 响应式 ═══════════ */
@media (max-width: 1024px) {
  .nav { padding: 0 24px; }
  .wrap, .hero-inner, .hero-strip-inner, .cta-inner, .foot-grid, .foot-bottom {
    padding-left: 24px; padding-right: 24px;
  }
  .intro-grid { gap: 60px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 60px 40px; }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  section, .intro, .stats, .scenes, .products, .cta,
  .product-detail, .projects, .tech-section, .faq, .contact { padding: 80px 0; }
  .page-hero { padding: 140px 0 60px; }
  .breadcrumb { padding-top: 80px; }

  .nav-menu, .nav-phone { display: none; }
  .nav-toggle { display: block; }
  .nav-menu.open {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; padding: 20px 24px;
    box-shadow: 0 8px 24px rgba(0,0,0,.1);
  }
  .nav-menu.open li { border-bottom: 1px solid #f0ebe3; }
  .nav-menu.open li:last-child { border: none; }
  .nav-menu.open a { color: #1a1a1a; padding: 14px 0; display: block; font-size: 16px; }

  .hero { min-height: 88vh; }
  .hero-inner { padding: 120px 24px 140px; }
  .hero-strip-inner { grid-template-columns: repeat(2, 1fr); }
  .hero-strip a { padding: 18px 16px; }
  .hero-strip a:nth-child(2) { border-right: none; }
  .hero-strip a:nth-child(1),
  .hero-strip a:nth-child(2) { border-bottom: 1px solid rgba(255,255,255,.12); }

  /* Hero v4 白底移动版 */
  .hero-light { min-height: auto; padding-top: 40px; }
  .hero-light-inner {
    grid-template-columns: 1fr; gap: 48px;
    padding: 110px 24px 80px;
  }
  .hero-media { order: -1; }
  .hero-image-wrap {
    aspect-ratio: 4/3;
    border-radius: 120px;
    max-width: 480px;
    margin: 0 auto;
  }
  .cap-blue-1 { width: 220px; height: 70px; top: 4%; right: 5%; }
  .cap-blue-2 { width: 260px; height: 80px; top: 30%; right: -40px; }
  .cap-green-1 { width: 200px; height: 65px; top: 62%; right: 4%; }
  .cap-green-2 { display: none; }
  .cap-accent { width: 60px; height: 22px; }
  .hero-strip-light .hero-strip-inner { grid-template-columns: repeat(2, 1fr); }
  .hero-strip-light a { padding: 16px 18px; }
  .hero-strip-light a:nth-child(2) { border-right: none; }
  .hero-strip-light a:nth-child(1),
  .hero-strip-light a:nth-child(2) { border-bottom: 1px solid #eae5d8; }

  .intro-grid { grid-template-columns: 1fr; gap: 40px; }
  .products-grid { grid-template-columns: 1fr; gap: 20px; }
  .products-header { grid-template-columns: 1fr; }
  .scenes-grid { grid-template-columns: 1fr; gap: 20px; }
  .scene-tall { min-height: 400px; grid-row: auto; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 40px 24px; }
  .cta-inner { grid-template-columns: 1fr; gap: 40px; }
  .cta-actions { align-items: flex-start; }
  .foot-grid { grid-template-columns: 1fr; gap: 40px; padding-bottom: 40px; }
  .foot-bottom { flex-direction: column; text-align: center; }
  .float-contact { display: flex; }

  .product-detail-grid { grid-template-columns: 1fr; gap: 40px; }
  .projects-grid { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-form-wrap { padding: 32px 24px; }

  /* 履历区移动版 */
  .track { padding: 100px 0; }
  .track-header { grid-template-columns: 1fr; gap: 24px; }
  .track-stats { grid-template-columns: repeat(2, 1fr); }
  .track-stat { padding: 32px 24px; }
  .track-projects { grid-template-columns: 1fr; gap: 16px; }
  .track-project { padding: 32px 28px; }
}
@media (max-width: 480px) {
  .hero-strip-inner { grid-template-columns: 1fr; }
  .hero-strip a { border-right: none; border-bottom: 1px solid rgba(255,255,255,.12); }
  .hero-strip a:last-child { border-bottom: none; }
  .cta-phone { font-size: 1.8rem; }

  .hero-strip-light .hero-strip-inner { grid-template-columns: 1fr; }
  .hero-strip-light a { border-right: none; border-bottom: 1px solid #eae5d8; }
  .hero-strip-light a:last-child { border-bottom: none; }
  .hero-image-wrap { border-radius: 80px; }
  .cap-blue-1, .cap-blue-2 { opacity: .6; }
}

/* ═══════════════════════════════════════════
   Hero 移动端修复 · 产品条与 CTA 不再打架
═══════════════════════════════════════════ */
@media (max-width: 768px) {

  /* Hero 高度不再强制满屏，避免内容挤压导致产品条上浮 */
  .hero {
    min-height: auto;
    padding: 100px 0 0;
    flex-direction: column;
    align-items: stretch;
  }

  /* 内容区收紧 */
  .hero-inner {
    padding: 40px 24px 60px;
  }

  /* 手机端标题不要太大 */
  .hero h1 {
    font-size: clamp(2rem, 8vw, 2.6rem);
    margin-bottom: 20px;
  }
  .hero-eyebrow {
    margin-bottom: 20px;
  }
  .hero-lead {
    font-size: .95rem;
    margin-bottom: 32px;
  }

  /* CTA 按钮等宽居中，视觉整齐 */
  .hero-cta {
    gap: 10px;
  }
  .hero-cta .btn-primary,
  .hero-cta .btn-ghost {
    flex: 1;
    padding: 14px 20px;
    font-size: 14px;
    justify-content: center;
    text-align: center;
  }

  /* 产品导航条：改为单列纵向，规规矩矩排在 Hero 下方 */
  .hero-strip {
    position: relative;
    background: rgba(255,255,255,.04);
  }
  .hero-strip-inner {
    grid-template-columns: 1fr;
  }
  .hero-strip a {
    padding: 16px 24px;
    border-right: none !important;
    border-bottom: 1px solid rgba(255,255,255,.1);
  }
  .hero-strip a:last-child {
    border-bottom: none;
  }
}