/* ==========================================================================
   钉钉官网 - 最终版 v174
   风格：条码标签 | 骨架：斜向切块 | 配色：朱红#782629 + 琥珀#DED2C9 + 碧蓝#339E65
   背景：条码标签年轮柔光罩染 | 字体：霞鹜漫黑 + Bricolage Grotesk
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesk:opsz,wght@12..96,400;12..96,500;12..96,600;12..96,700;12..96,800&display=swap');

:root {
  --color-primary: #782629;       /* 主色：朱红 (条码标签工业朱印之色) */
  --color-primary-dark: #56181B;  /* 深朱红 */
  --color-primary-deep: #3A0D10;  /* 极深朱红墨底 */
  --color-secondary: #DED2C9;     /* 辅色：琥珀微光 (标签纸质底色) */
  --color-accent: #339E65;        /* 点缀：碧蓝翠绿 (核验通过指示色) */
  --color-accent-dark: #227045;   /* 深碧蓝 */
  --color-bg-base: #FAF8F5;       /* 标签亚光宣白色 */
  --color-bg-card: #FFFFFF;       /* 标签纯白 */
  --color-text-main: #241A1B;     /* 深碳墨色文字 */
  --color-text-sub: #5E5253;      /* 灰琥珀次要字 */
  --color-border-tag: #C9BDB3;    /* 标签工业边框 */
  --barcode-shadow: 0 4px 0 #56181B, 0 10px 24px rgba(120, 38, 41, 0.08);
  --barcode-shadow-hover: 0 6px 0 #339E65, 0 14px 28px rgba(51, 158, 101, 0.16);
  --font-base: "Bricolage Grotesk", "LXGW WenKai", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-bricolage: "Bricolage Grotesk", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--color-bg-base);
  color: var(--color-text-main);
  font-family: var(--font-base);
}

body {
  line-height: 1.6;
  /* 条码标签年轮柔光罩染背景 */
  background-color: #FAF8F5;
  background-image: 
    radial-gradient(circle at 50% 20%, rgba(222, 210, 201, 0.45) 0%, transparent 65%),
    repeating-linear-gradient(90deg, rgba(120, 38, 41, 0.03) 0, rgba(120, 38, 41, 0.03) 2px, transparent 2px, transparent 10px),
    repeating-linear-gradient(0deg, rgba(222, 210, 201, 0.15) 0, rgba(222, 210, 201, 0.15) 24px, transparent 24px, transparent 48px);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.25s ease;
}

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

/* 版心容器 */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 骨架：斜向切块结构 (Diagonal Cut Slice Structure) */
.slice-band {
  width: 100%;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

/* 斜切分界线微修饰 */
.slice-cut-top {
  clip-path: polygon(0 0, 100% 4vw, 100% 100%, 0 100%);
  margin-top: -4vw;
  padding-top: calc(80px + 4vw);
}

.slice-cut-bottom {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 4vw), 0 100%);
  padding-bottom: calc(80px + 4vw);
}

.slice-light-amber {
  background: rgba(222, 210, 201, 0.35);
  border-top: 2px dashed var(--color-border-tag);
  border-bottom: 2px dashed var(--color-border-tag);
}

.slice-pure-white {
  background: #FFFFFF;
}

.slice-deep-ruby {
  background: linear-gradient(135deg, var(--color-primary-deep) 0%, var(--color-primary) 65%, #923438 100%);
  color: #FFF;
  border-top: 4px solid var(--color-accent);
}

/* 顶部吸顶导航栏：条码标签报头 */
.header-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--color-primary);
  box-shadow: 0 4px 14px rgba(120, 38, 41, 0.08);
  transition: all 0.3s ease;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

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

.nav-logo {
  width: 44px;
  height: 44px;
  border-radius: 6px;
  border: 2px solid var(--color-primary);
  background: #FFF;
  padding: 3px;
  box-shadow: 2px 2px 0 var(--color-primary-dark);
}

.brand-text-box {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-bricolage);
  font-size: 20px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.5px;
  line-height: 1.2;
}

.brand-badge {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-accent);
  background: rgba(51, 158, 101, 0.1);
  padding: 1px 6px;
  border-radius: 4px;
  display: inline-block;
  margin-top: 2px;
  border: 1px solid rgba(51, 158, 101, 0.3);
}

.nav-links {
  display: flex;
  gap: 26px;
  align-items: center;
}

.nav-link {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-main);
  position: relative;
  padding: 6px 2px;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* 按钮：条码标签硬边立体按键 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.2, 0, 0, 1);
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: #FFF;
  border-color: var(--color-primary-dark);
  box-shadow: 0 3px 0 var(--color-primary-dark);
}

.btn-primary:hover {
  background: #8e2d31;
  transform: translateY(-2px);
  box-shadow: 0 5px 0 var(--color-primary-dark);
}

.btn-primary:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 var(--color-primary-dark);
}

.btn-secondary {
  background: #FFF;
  color: var(--color-primary);
  border-color: var(--color-border-tag);
  box-shadow: 0 3px 0 var(--color-secondary);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 5px 0 var(--color-primary);
}

.btn-accent {
  background: var(--color-accent);
  color: #FFF;
  border-color: var(--color-accent-dark);
  box-shadow: 0 3px 0 var(--color-accent-dark);
}

.btn-accent:hover {
  background: #3cb977;
  transform: translateY(-2px);
  box-shadow: 0 5px 0 var(--color-accent-dark);
}

/* 条码标签微徽标 (Barcode Strip Tag) */
.barcode-mini-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-bricolage);
  font-size: 11px;
  font-weight: 800;
  color: var(--color-primary);
  background: #FFF;
  border: 1px solid var(--color-border-tag);
  border-left: 4px solid var(--color-primary);
  padding: 3px 10px;
  border-radius: 4px;
  letter-spacing: 1px;
}

.barcode-lines {
  display: inline-block;
  width: 18px;
  height: 12px;
  background: repeating-linear-gradient(90deg, var(--color-primary) 0, var(--color-primary) 2px, transparent 2px, transparent 4px);
}

/* 栏目标签与标题 */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  background: #FFF;
  border: 1px solid var(--color-secondary);
  border-left: 4px solid var(--color-primary);
  padding: 4px 14px;
  border-radius: 4px;
  margin-bottom: 12px;
  box-shadow: 2px 2px 0 rgba(120, 38, 41, 0.1);
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-text-main);
  line-height: 1.3;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--color-text-sub);
  max-width: 720px;
  margin: 0 auto;
}

/* 首屏：版本矩阵 (Hero Version Matrix) */
.hero-slice-section {
  padding: 60px 0 72px;
  background: linear-gradient(180deg, rgba(222, 210, 201, 0.4) 0%, #FFFFFF 100%);
  border-bottom: 2px dashed var(--color-border-tag);
  position: relative;
}

.hero-main-title {
  font-size: 38px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.5px;
  margin-bottom: 14px;
  line-height: 1.25;
}

.hero-desc {
  font-size: 17px;
  color: var(--color-text-sub);
  max-width: 860px;
  margin: 0 auto 28px;
  line-height: 1.6;
}

/* 首屏版本矩阵网格 (3列卡片) */
.version-matrix-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 36px;
}

.version-matrix-card {
  background: #FFF;
  border: 2px solid var(--color-border-tag);
  border-radius: 12px;
  padding: 28px 24px;
  position: relative;
  box-shadow: var(--barcode-shadow);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.version-matrix-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: var(--barcode-shadow-hover);
}

.version-matrix-card.featured-card {
  border: 3px solid var(--color-primary);
  background: #FDFBF9;
  box-shadow: 0 6px 0 var(--color-primary-dark), 0 16px 36px rgba(120, 38, 41, 0.14);
}

.version-card-tag {
  align-self: flex-start;
  font-size: 11px;
  font-weight: 800;
  color: #FFF;
  background: var(--color-accent);
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.version-card-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.version-card-sub {
  font-size: 13px;
  color: var(--color-text-sub);
  margin-bottom: 16px;
}

.version-feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  flex-grow: 1;
}

.version-feature-list li {
  font-size: 13px;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.version-feature-list li::before {
  content: "✔";
  color: var(--color-accent);
  font-weight: 800;
}

/* 核心功能区 (斜向切块四列卡片) */
.features-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 36px;
}

.feature-tag-card {
  background: #FFF;
  border: 2px solid var(--color-border-tag);
  border-radius: 10px;
  padding: 22px;
  position: relative;
  box-shadow: var(--barcode-shadow);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.feature-tag-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
  box-shadow: var(--barcode-shadow-hover);
}

.feature-img-box {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 16px;
  border: 1px solid var(--color-border-tag);
}

.feature-tag-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 8px;
}

.feature-tag-desc {
  font-size: 13px;
  color: var(--color-text-sub);
  line-height: 1.5;
  margin-bottom: 14px;
  flex-grow: 1;
}

.feature-tag-link {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.feature-tag-link:hover {
  color: var(--color-accent);
}

/* 安全保障横带区 (左右图文交替) */
.safety-split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-top: 36px;
}

.safety-visual-box {
  border: 2px solid var(--color-border-tag);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--barcode-shadow);
}

.safety-check-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.safety-check-item {
  background: #FFF;
  border: 1px solid var(--color-border-tag);
  border-left: 4px solid var(--color-accent);
  padding: 14px 18px;
  border-radius: 6px;
}

.safety-check-item h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 4px;
}

.safety-check-item p {
  font-size: 13px;
  color: var(--color-text-sub);
  line-height: 1.5;
}

/* 场景横带区 (三列卡片) */
.scenes-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 36px;
}

/* 底部通栏口号 (Bottom Full-width Slogan Banner) */
.slogan-fullwidth-band {
  background: linear-gradient(135deg, var(--color-primary-deep) 0%, var(--color-primary) 65%, #923438 100%);
  color: #FFF;
  padding: 68px 0;
  border-top: 4px solid var(--color-accent);
  border-bottom: 2px solid var(--color-primary-dark);
  position: relative;
  overflow: hidden;
}

.slogan-fullwidth-band::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.03) 0, rgba(255, 255, 255, 0.03) 10px, transparent 10px, transparent 20px);
  pointer-events: none;
}

.slogan-inner-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  position: relative;
  z-index: 2;
}

.slogan-text-box h2 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 10px;
}

.slogan-text-box p {
  font-size: 16px;
  color: var(--color-secondary);
  max-width: 720px;
  line-height: 1.5;
}

.slogan-btn-group {
  display: flex;
  gap: 14px;
  flex-shrink: 0;
}

/* 页脚两列布局 (Footer Two-Columns) */
.footer-two-columns-band {
  background: #180D0E;
  color: #DED2C9;
  border-top: 2px solid var(--color-primary);
  padding: 56px 0 32px;
  margin-top: auto;
}

.footer-two-cols-wrap {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(222, 210, 201, 0.15);
}

.footer-left-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-brand-title {
  font-family: var(--font-bricolage);
  font-size: 20px;
  font-weight: 800;
  color: #FFF;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo-pic {
  width: 32px;
  height: 32px;
  border-radius: 4px;
}

.footer-corp-intro {
  font-size: 13px;
  line-height: 1.6;
  color: #BDB0A8;
  max-width: 520px;
}

.footer-license-box {
  font-size: 12px;
  color: #8C7E78;
  line-height: 1.8;
}

.footer-right-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.footer-nav-col-title {
  font-size: 15px;
  font-weight: 700;
  color: #FFF;
  margin-bottom: 14px;
  position: relative;
  padding-bottom: 6px;
}

.footer-nav-col-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--color-accent);
}

.footer-nav-col-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-nav-col-list li a {
  font-size: 13px;
  color: #BDB0A8;
}

.footer-nav-col-list li a:hover {
  color: #FFF;
  padding-left: 3px;
}

.footer-bottom-copyright {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: #8C7E78;
}

/* 网页版与下载页专属结构 */
.page-hero-compact {
  padding: 48px 0 36px;
  text-align: center;
}

.login-cabinet-container {
  max-width: 900px;
  margin: 0 auto;
  background: #FFF;
  border: 3px solid var(--color-primary);
  border-radius: 12px;
  box-shadow: 0 6px 0 var(--color-primary-dark), 0 16px 36px rgba(120, 38, 41, 0.12);
  display: grid;
  grid-template-columns: 1fr 1fr;
  overflow: hidden;
}

.login-qr-side {
  padding: 36px;
  background: var(--color-bg-base);
  border-right: 2px dashed var(--color-border-tag);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.qr-box-mock {
  width: 190px;
  height: 190px;
  background: #FFF;
  border: 2px solid var(--color-border-tag);
  border-radius: 10px;
  padding: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 14px 0;
}

.login-form-side {
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* 响应式适配 */
@media (max-width: 1024px) {
  .version-matrix-grid {
    grid-template-columns: 1fr;
  }
  .features-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .safety-split-layout {
    grid-template-columns: 1fr;
  }
  .slogan-inner-flex {
    flex-direction: column;
    text-align: center;
  }
  .footer-two-cols-wrap {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-main-title {
    font-size: 26px;
  }
  .features-grid-4 {
    grid-template-columns: 1fr;
  }
  .scenes-grid-3 {
    grid-template-columns: 1fr;
  }
  .login-cabinet-container {
    grid-template-columns: 1fr;
  }
  .login-qr-side {
    border-right: none;
    border-bottom: 2px dashed var(--color-border-tag);
  }
  .footer-right-col {
    grid-template-columns: 1fr;
  }
  .footer-bottom-copyright {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}