/* ==========================================================
   陕西宝运来文化有限公司 官方网站样式
   ========================================================== */

:root {
  --color-primary: #b03a2e;        /* 中国红（偏沉稳的赭红） */
  --color-primary-dark: #8e2c22;
  --color-gold: #c9a86a;           /* 鎏金色 */
  --color-ink: #2b2b2b;            /* 墨色 */
  --color-gray: #6b6b6b;
  --color-bg: #faf7f2;             /* 宣纸底色 */
  --color-bg-soft: #f3ede3;
  --color-white: #ffffff;
  --shadow-soft: 0 10px 30px rgba(43, 43, 43, 0.08);
  --radius: 14px;
  --header-height: 72px;
  --font-serif: "Songti SC", "STSong", "SimSun", serif;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.7;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

.container {
  width: min(1140px, 92%);
  margin: 0 auto;
}

/* ----------------- 顶部导航 ----------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 100;
  background: rgba(250, 247, 242, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(201, 168, 106, 0.25);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(43, 43, 43, 0.08);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-mark {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(176, 58, 46, 0.35);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.logo-text strong {
  font-size: 17px;
  letter-spacing: 1px;
}

.logo-text small {
  font-size: 10px;
  color: var(--color-gray);
  letter-spacing: 0.5px;
}

.site-nav {
  display: flex;
  gap: 8px;
}

.site-nav a {
  padding: 8px 16px;
  font-size: 15px;
  border-radius: 8px;
  color: var(--color-ink);
  transition: all 0.25s ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-primary);
  background: rgba(176, 58, 46, 0.08);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ----------------- 首页横幅 ----------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: calc(var(--header-height) + 40px) 0 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 20%, rgba(201, 168, 106, 0.18), transparent),
    radial-gradient(ellipse 50% 40% at 85% 70%, rgba(176, 58, 46, 0.12), transparent),
    linear-gradient(180deg, #fdfbf7 0%, var(--color-bg) 60%, var(--color-bg-soft) 100%);
}

.hero-bg::before {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  right: -140px;
  top: 50%;
  transform: translateY(-50%);
  border: 1.5px solid rgba(201, 168, 106, 0.35);
  border-radius: 50%;
}

.hero-bg::after {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  left: -100px;
  bottom: -120px;
  border: 1.5px dashed rgba(176, 58, 46, 0.25);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-sub {
  display: inline-block;
  font-family: var(--font-serif);
  color: var(--color-primary);
  font-size: 18px;
  letter-spacing: 6px;
  margin-bottom: 20px;
  padding: 6px 22px;
  border: 1px solid rgba(176, 58, 46, 0.3);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.35;
  letter-spacing: 6px;
  margin-bottom: 24px;
}

.hero-desc {
  color: var(--color-gray);
  font-size: 17px;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 13px 38px;
  font-size: 16px;
  border-radius: 999px;
  letter-spacing: 2px;
  transition: all 0.3s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  box-shadow: 0 8px 20px rgba(176, 58, 46, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(176, 58, 46, 0.45);
}

.btn-ghost {
  border: 1.5px solid rgba(176, 58, 46, 0.5);
  color: var(--color-primary);
  background: rgba(255, 255, 255, 0.5);
}

.btn-ghost:hover {
  background: rgba(176, 58, 46, 0.08);
  transform: translateY(-2px);
}

.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 40px;
  border: 2px solid rgba(107, 107, 107, 0.4);
  border-radius: 14px;
}

.hero-scroll span {
  position: absolute;
  top: 7px;
  left: 50%;
  width: 4px;
  height: 8px;
  margin-left: -2px;
  background: var(--color-primary);
  border-radius: 2px;
  animation: scrollHint 1.8s ease-in-out infinite;
}

@keyframes scrollHint {
  0%   { transform: translateY(0); opacity: 1; }
  70%  { transform: translateY(12px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* ----------------- 数据概览 ----------------- */
.stats {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  padding: 48px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 44px;
  color: var(--color-white);
  line-height: 1.2;
}

.stat-item strong i {
  font-style: normal;
  font-size: 26px;
  color: var(--color-gold);
}

.stat-item span {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  letter-spacing: 2px;
}

/* ----------------- 通用 Section ----------------- */
.section {
  padding: 96px 0;
}

.section-head {
  text-align: center;
  margin-bottom: 56px;
}

.section-eyebrow {
  font-size: 13px;
  letter-spacing: 4px;
  color: var(--color-gold);
  margin-bottom: 8px;
}

.section-head h2 {
  font-family: var(--font-serif);
  font-size: 36px;
  letter-spacing: 6px;
}

.section-line {
  display: inline-block;
  width: 56px;
  height: 3px;
  margin-top: 16px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-primary));
  border-radius: 2px;
}

.section-head.light h2 {
  color: var(--color-white);
}

/* ----------------- 关于我们 ----------------- */
.about-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 56px;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-card-deco {
  position: absolute;
  inset: 24px -24px -24px 24px;
  border: 2px solid rgba(201, 168, 106, 0.4);
  border-radius: var(--radius);
}

.about-visual-inner {
  position: relative;
  background: linear-gradient(150deg, #fffdf9, var(--color-bg-soft));
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 72px 32px;
  text-align: center;
}

.about-seal {
  display: inline-grid;
  place-items: center;
  width: 132px;
  height: 132px;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  font-family: var(--font-serif);
  font-size: 34px;
  font-weight: 700;
  letter-spacing: 4px;
  border-radius: 20px;
  box-shadow: 0 12px 28px rgba(176, 58, 46, 0.35);
  writing-mode: vertical-rl;
}

.about-visual-inner p {
  font-family: var(--font-serif);
  font-size: 18px;
  letter-spacing: 4px;
  color: var(--color-gray);
}

.about-text h3 {
  font-family: var(--font-serif);
  font-size: 26px;
  margin-bottom: 20px;
  letter-spacing: 2px;
}

.about-text p {
  color: var(--color-gray);
  margin-bottom: 16px;
  text-align: justify;
}

.about-points {
  list-style: none;
  margin-top: 24px;
}

.about-points li {
  padding: 10px 0;
  border-bottom: 1px dashed rgba(201, 168, 106, 0.4);
  font-size: 15.5px;
}

.about-points li i {
  font-style: normal;
  color: var(--color-gold);
  margin-right: 10px;
  font-size: 12px;
}

/* ----------------- 业务范围 ----------------- */
.business {
  background: var(--color-bg-soft);
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.business-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 40px 30px;
  box-shadow: var(--shadow-soft);
  border-top: 3px solid transparent;
  transition: all 0.3s ease;
}

.business-card:hover {
  transform: translateY(-8px);
  border-top-color: var(--color-primary);
  box-shadow: 0 18px 40px rgba(43, 43, 43, 0.12);
}

.business-icon {
  font-size: 38px;
  margin-bottom: 18px;
}

.business-card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.business-card p {
  color: var(--color-gray);
  font-size: 14.5px;
  text-align: justify;
}

/* ----------------- 企业文化 ----------------- */
.culture {
  background:
    radial-gradient(ellipse 50% 60% at 80% 10%, rgba(201, 168, 106, 0.15), transparent),
    linear-gradient(160deg, #3a2420, #2b1a17);
}

.culture .section-eyebrow {
  color: var(--color-gold);
}

.culture-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.culture-item {
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(201, 168, 106, 0.25);
  border-radius: var(--radius);
  padding: 40px 26px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.culture-item:hover {
  background: rgba(201, 168, 106, 0.1);
  transform: translateY(-6px);
}

.culture-num {
  position: absolute;
  top: 10px;
  right: 16px;
  font-family: var(--font-serif);
  font-size: 56px;
  color: rgba(201, 168, 106, 0.18);
  line-height: 1;
}

.culture-item h3 {
  font-family: var(--font-serif);
  color: var(--color-gold);
  font-size: 22px;
  letter-spacing: 4px;
  margin-bottom: 14px;
}

.culture-item p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 14.5px;
}

/* ----------------- 联系我们 ----------------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 40px;
}

.contact-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  box-shadow: var(--shadow-soft);
  transition: all 0.3s ease;
}

.contact-card:hover {
  transform: translateY(-6px);
}

.contact-icon {
  font-size: 34px;
  margin-bottom: 14px;
}

.contact-card h3 {
  font-family: var(--font-serif);
  font-size: 19px;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.contact-card p {
  color: var(--color-gray);
  font-size: 15px;
}

.contact-tip {
  text-align: center;
  color: var(--color-gray);
  font-size: 15px;
}

/* ----------------- 页脚 ----------------- */
.site-footer {
  background: #241a17;
  color: rgba(255, 255, 255, 0.75);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding: 44px 0;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-brand strong {
  display: block;
  color: var(--color-white);
  letter-spacing: 1px;
}

.footer-brand small {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.5px;
}

.footer-nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.25s ease;
}

.footer-nav a:hover {
  color: var(--color-gold);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 18px 0;
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px 28px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.beian-link {
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.25s ease;
}

.beian-link:hover {
  color: var(--color-gold);
  text-decoration: underline;
}

/* ----------------- 滚动入场动画 ----------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ----------------- 响应式 ----------------- */
@media (max-width: 960px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .business-grid,
  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .culture-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}

@media (max-width: 680px) {
  .pc-only {
    display: none;
  }

  .logo-text strong {
    font-size: 14px;
  }

  .logo-text small {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg);
    padding: 16px 24px 24px;
    border-bottom: 1px solid rgba(201, 168, 106, 0.25);
    box-shadow: 0 16px 30px rgba(43, 43, 43, 0.12);
    transform: translateY(-130%);
    transition: transform 0.35s ease;
  }

  .site-nav.open {
    transform: translateY(0);
  }

  .site-nav a {
    padding: 12px 8px;
  }

  .section {
    padding: 64px 0;
  }

  .business-grid,
  .contact-grid,
  .culture-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}