/* ============================================================
   紫光青藤官网 全站设计系统 v2
   风格：白色基调 / 品牌紫克制点缀 / 科技感 / 全屏banner
   铁律：零第三方依赖 / 全站禁绿色 / 动效只动 transform+opacity
   ============================================================ */

:root {
  /* 品牌色板（浅色系：白底 + 品牌紫克制点缀） */
  --brand-purple: #5B2C87;
  --brand-purple-light: #7C4DFF;
  --deep-blue: #1A1F5E;
  --indigo: #3B4FD5;
  --vi-gold: #D9A441;
  --text-dark: #1A1A2E;
  --text-body: #4A4560;
  --text-muted: #8A8A94;
  --bg-white: #FFFFFF;
  --bg-mist: #F6F5F8;
  --bg-light: #FBFBFD;
  --hairline: rgba(91, 44, 135, 0.12);
  --hairline-gray: #ECECEF;
  /* 页脚华为式浅灰 */
  --footer-bg: #F2F2F4;
  --footer-text: #55565E;
  --footer-muted: #87888F;
  /* banner 蒙层：顶部加深衬托透明导航白字，中部近透明保满屏观感 */
  --gradient-banner: linear-gradient(180deg, rgba(10, 10, 30, 0.52) 0%, rgba(10, 10, 30, 0.10) 26%, rgba(10, 10, 30, 0.06) 55%, rgba(10, 10, 30, 0.46) 100%);
  --gradient-brand: linear-gradient(135deg, #5B2C87, #9B6FDC);
  --shadow-card: 0 8px 24px rgba(23, 16, 60, 0.06);
  --shadow-soft: 0 4px 14px rgba(23, 16, 60, 0.05);
  --radius-card: 14px;
  --radius-pill: 100px;
  --max-width: 1280px;
  --nav-h: 64px;
  /* 渐进式过渡曲线（九号/苹果风格：缓入缓出不生硬） */
  --ease-smooth: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-body);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--brand-purple);
  color: #fff;
  padding: 8px 16px;
  z-index: 9999;
}
.skip-link:focus { left: 0; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.5px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.35s var(--ease-smooth), box-shadow 0.35s var(--ease-smooth), background-color 0.35s var(--ease-smooth), color 0.35s var(--ease-smooth);
  white-space: nowrap;
}
.btn-primary {
  background: var(--brand-purple);
  color: #fff;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(91, 44, 135, 0.3);
}
.btn-outline {
  border-color: rgba(91, 44, 135, 0.35);
  color: var(--brand-purple);
  background: transparent;
}
.btn-outline:hover {
  background: var(--brand-purple);
  color: #fff;
  transform: translateY(-2px);
}
.btn-light {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(4px);
}
.btn-light:hover {
  background: #fff;
  color: var(--brand-purple);
  transform: translateY(-2px);
}
.btn .arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  font-size: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  transition: transform 0.35s var(--ease-smooth);
}
.btn:hover .arrow { transform: translateX(4px); }

/* ============ 顶部导航 ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline-gray);
  z-index: 1000;
  transition: background-color 0.4s var(--ease-smooth), border-color 0.4s var(--ease-smooth), box-shadow 0.4s var(--ease-smooth);
}
.site-header.scrolled {
  box-shadow: 0 6px 24px rgba(23, 16, 60, 0.08);
}

/* 首页：导航透明悬浮在全屏 banner 上（九号风格），滚动后渐变回白底 */
body.home .site-header {
  background: transparent;
  border-bottom-color: transparent;
}
body.home .site-header .logo-text { color: #fff; }
body.home .site-header .logo-text .en { color: rgba(255, 255, 255, 0.72); }
body.home .site-header .logo img { filter: brightness(0) invert(1); }
body.home .site-header .main-nav a { color: #fff; }
body.home .site-header .main-nav a:hover { color: #fff; background: rgba(255, 255, 255, 0.14); }
body.home .site-header .main-nav a.active { color: #fff; font-weight: 600; }
body.home .site-header .main-nav a.active::after { background: #fff; }
body.home .site-header .nav-toggle span { background: #fff; }
body.home .site-header.scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: var(--hairline-gray);
  box-shadow: 0 6px 24px rgba(23, 16, 60, 0.08);
}
body.home .site-header.scrolled .logo-text { color: var(--text-dark); }
body.home .site-header.scrolled .logo-text .en { color: var(--text-muted); }
body.home .site-header.scrolled .logo img { filter: none; }
body.home .site-header.scrolled .main-nav a { color: var(--text-dark); }
body.home .site-header.scrolled .main-nav a:hover { color: var(--brand-purple); background: rgba(91, 44, 135, 0.06); }
body.home .site-header.scrolled .main-nav a.active { color: var(--brand-purple); }
body.home .site-header.scrolled .main-nav a.active::after { background: var(--brand-purple); }
body.home .site-header.scrolled .nav-toggle span { background: var(--text-dark); }
/* 首页 hero 从视口顶部开始，实现真全屏 */
body.home .hero { margin-top: 0; }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo img { height: 30px; width: auto; }
.logo-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: 1px;
}
.logo-text .cn { display: block; font-size: 17px; line-height: 1.2; }
.logo-text .en {
  display: block;
  font-size: 9px;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 6px;
}
.main-nav a {
  display: block;
  padding: 7px 14px;
  font-size: 14px;
  color: var(--text-dark);
  border-radius: var(--radius-pill);
  transition: color 0.35s var(--ease-smooth), background-color 0.35s var(--ease-smooth);
  position: relative;
}
.main-nav a:hover { color: var(--brand-purple); background: rgba(91, 44, 135, 0.06); }
.main-nav a.active { color: var(--brand-purple); font-weight: 600; }
.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 12px;
  height: 2px;
  background: var(--brand-purple);
  border-radius: 2px;
  transform: translateX(-50%);
}

/* 下拉菜单 */
.has-dropdown { position: relative; }
.dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 220px;
  background: #fff;
  border: 1px solid var(--hairline-gray);
  border-radius: 12px;
  box-shadow: var(--shadow-card);
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease-smooth), transform 0.3s var(--ease-smooth), visibility 0.3s;
  z-index: 100;
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.dropdown a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  font-size: 14px;
  border-radius: 8px;
  color: var(--text-body);
}
.dropdown a:hover {
  background: rgba(91, 44, 135, 0.06);
  color: var(--brand-purple);
}
.dropdown a .mini {
  font-size: 11px;
  color: var(--text-muted);
}

/* 移动端菜单按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text-dark);
  border-radius: 2px;
  transition: transform 0.35s var(--ease-smooth), opacity 0.35s var(--ease-smooth);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ 全屏 Banner（透明满屏，杂志感左对齐） ============ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  overflow: hidden;
  background: #E9E6F2;
  margin-top: var(--nav-h);
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 1.2s var(--ease-smooth), visibility 1.2s;
}
.hero-slide.active {
  opacity: 1;
  visibility: visible;
}
.hero-slide .bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  transition: transform 8s var(--ease-smooth);
}
.hero-slide.active .bg { transform: scale(1); }
.hero-slide .veil {
  position: absolute;
  inset: 0;
  background: var(--gradient-banner);
}
.hero-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  text-align: left;
  color: #fff;
  padding: 0 6.5vw;
}
.hero-kicker {
  font-size: 12.5px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 22px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  background: rgba(12, 12, 34, 0.18);
  backdrop-filter: blur(6px);
  padding: 6px 18px;
  border-radius: var(--radius-pill);
}
.hero-content h1 {
  font-size: clamp(30px, 4.6vw, 52px);
  font-weight: 700;
  letter-spacing: 1px;
  line-height: 1.25;
  margin-bottom: 18px;
  max-width: 860px;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.35), 0 10px 44px rgba(0, 0, 0, 0.28);
}
.hero-content .sub {
  font-size: clamp(14px, 1.6vw, 17px);
  color: rgba(255, 255, 255, 0.92);
  max-width: 680px;
  margin-bottom: 34px;
  line-height: 1.85;
  text-shadow: 0 1px 14px rgba(0, 0, 0, 0.35);
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* 轮播指示点 */
.hero-dots {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 5;
}
.hero-dots button {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.9);
  background: transparent;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.25);
  cursor: pointer;
  transition: background-color 0.35s var(--ease-smooth), transform 0.35s var(--ease-smooth);
  padding: 0;
}
.hero-dots button.active {
  background: #fff;
  transform: scale(1.35);
}

/* 开场动效层（九号/苹果风格：品牌字母光效展开） */
.intro-overlay {
  position: fixed;
  inset: 0;
  background: #fff;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.7s var(--ease-smooth), visibility 0.7s;
}
.intro-overlay.hide { opacity: 0; visibility: hidden; }
.intro-mark {
  display: flex;
  align-items: center;
  gap: 18px;
}
.intro-mark .glyph {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 32px;
  font-weight: 800;
  animation: intro-pop 0.8s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.intro-mark .text {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: 6px;
  opacity: 0;
  transform: translateY(12px);
  animation: intro-rise 0.7s ease 0.35s forwards;
}
.intro-line {
  margin-top: 28px;
  width: 220px;
  height: 2px;
  background: var(--hairline-gray);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}
.intro-line::after {
  content: "";
  position: absolute;
  left: -40%;
  top: 0;
  bottom: 0;
  width: 40%;
  background: linear-gradient(90deg, transparent, var(--brand-purple-light), var(--brand-purple));
  border-radius: 2px;
  animation: intro-flow 1.4s ease 0.5s forwards;
}
.intro-skip {
  position: absolute;
  bottom: 40px;
  color: var(--text-muted);
  font-size: 13px;
  border: none;
  background: none;
  cursor: pointer;
  letter-spacing: 2px;
}
@keyframes intro-pop {
  from { transform: scale(0.6); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
@keyframes intro-rise {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes intro-flow {
  to { left: 100%; }
}

/* ============ 通用区块 ============ */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-mist); }
.section-white { background: var(--bg-white); }

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 44px;
}
.section-head .kicker {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--brand-purple);
  font-weight: 600;
  margin-bottom: 10px;
}
.section-head h2 {
  font-size: clamp(24px, 3vw, 32px);
  color: var(--text-dark);
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.section-head h2 .en {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-top: 8px;
}
.section-head p {
  font-size: 15px;
  color: var(--text-body);
  line-height: 1.8;
}

/* ============ 卡片 ============ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}
.card {
  background: #fff;
  border: 1px solid var(--hairline-gray);
  border-radius: var(--radius-card);
  padding: 30px 28px;
  transition: transform 0.4s var(--ease-smooth), box-shadow 0.4s var(--ease-smooth);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}
.card .icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(91, 44, 135, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-purple);
  margin-bottom: 18px;
}
.card h3 {
  font-size: 17px;
  color: var(--text-dark);
  font-weight: 600;
  margin-bottom: 10px;
}
.card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-body);
}
.card .more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-purple);
}
.card .more svg { transition: transform 0.35s var(--ease-smooth); }
.card:hover .more svg { transform: translateX(4px); }

/* 产品卡片（图+文） */
.product-card {
  background: #fff;
  border: 1px solid var(--hairline-gray);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform 0.4s var(--ease-smooth), box-shadow 0.4s var(--ease-smooth);
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}
.product-card .thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-mist);
}
.product-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-smooth);
}
.product-card:hover .thumb img { transform: scale(1.05); }
.product-card .thumb .tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--brand-purple);
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  backdrop-filter: blur(4px);
}
.product-card .body { padding: 24px 26px 26px; }
.product-card h3 {
  font-size: 17.5px;
  color: var(--text-dark);
  margin-bottom: 8px;
}
.product-card h3 .en {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 4px;
}
.product-card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-body);
  margin-bottom: 16px;
}

/* 应用场景卡片 */
.app-card {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  min-height: 280px;
}
.app-card .bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.7s var(--ease-smooth);
}
.app-card:hover .bg { transform: scale(1.06); }
.app-card .veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(26, 31, 94, 0.02), rgba(26, 31, 94, 0.55));
  transition: background-color 0.3s ease;
}
.app-card .info {
  position: absolute;
  left: 26px;
  right: 26px;
  bottom: 24px;
  color: #fff;
}
.app-card .info h3 { font-size: 19px; font-weight: 700; margin-bottom: 6px; }
.app-card .info h3 .en {
  display: block;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 4px;
}
.app-card .info p {
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.35s var(--ease-smooth), transform 0.35s var(--ease-smooth);
}
.app-card:hover .info p { opacity: 1; transform: translateY(0); }

/* ============ 关于（首页） ============ */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-split .visual {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
}
.about-split .visual img {
  width: 100%;
  height: 440px;
  object-fit: cover;
}
.about-split .visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(91, 44, 135, 0.12), transparent 55%);
}
.about-split .text .kicker {
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--brand-purple);
  font-weight: 600;
  margin-bottom: 10px;
}
.about-split h2 {
  font-size: clamp(22px, 2.6vw, 30px);
  color: var(--text-dark);
  margin-bottom: 16px;
  line-height: 1.4;
}
.about-split p {
  font-size: 14.5px;
  line-height: 1.95;
  margin-bottom: 16px;
}
.about-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 28px;
}
.about-metrics .metric { text-align: center; }
.about-metrics .num {
  font-size: 28px;
  font-weight: 800;
  color: var(--brand-purple);
  font-family: "Segoe UI", sans-serif;
}
.about-metrics .label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============ 时间线（公司历程） ============ */
.timeline {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  padding-left: 36px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--brand-purple-light), var(--brand-purple));
  border-radius: 2px;
}
.timeline li {
  position: relative;
  padding: 0 0 30px 24px;
}
.timeline li::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--brand-purple);
}
.timeline .year {
  font-size: 14px;
  font-weight: 700;
  color: var(--brand-purple);
  margin-bottom: 4px;
}
.timeline .desc { font-size: 14px; }

/* ============ 新闻 ============ */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.news-card {
  background: #fff;
  border: 1px solid var(--hairline-gray);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform 0.4s var(--ease-smooth), box-shadow 0.4s var(--ease-smooth);
}
.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}
.news-card .thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-mist);
}
.news-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-smooth);
}
.news-card:hover .thumb img { transform: scale(1.05); }
.news-card .body { padding: 22px 24px 26px; }
.news-card .date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.news-card h3 {
  font-size: 15.5px;
  color: var(--text-dark);
  line-height: 1.6;
  font-weight: 600;
  transition: color 0.3s ease;
}
.news-card:hover h3 { color: var(--brand-purple); }

/* 新闻列表（详情页样式） */
.news-list {
  max-width: 900px;
  margin: 0 auto;
}
.news-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 8px;
  border-bottom: 1px solid var(--hairline-gray);
  transition: padding 0.35s var(--ease-smooth);
}
.news-item:hover { padding-left: 16px; }
.news-item h3 {
  font-size: 15.5px;
  color: var(--text-dark);
  font-weight: 600;
  transition: color 0.3s ease;
}
.news-item:hover h3 { color: var(--brand-purple); }
.news-item .date {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ============ 表格（产品规格等） ============ */
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--hairline-gray);
  border-radius: 12px;
  overflow: hidden;
  font-size: 13.5px;
}
.data-table th {
  background: rgba(91, 44, 135, 0.07);
  color: var(--brand-purple);
  font-weight: 600;
  text-align: left;
  padding: 14px 18px;
  white-space: nowrap;
}
.data-table td {
  padding: 13px 18px;
  border-top: 1px solid var(--hairline-gray);
  color: var(--text-body);
}
.data-table tr:hover td { background: var(--bg-light); }

/* ============ CTA 条 ============ */
.cta-band {
  position: relative;
  background: var(--gradient-brand);
  border-radius: 20px;
  padding: 48px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  overflow: hidden;
  color: #fff;
}
.cta-band::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}
.cta-band h3 {
  font-size: clamp(20px, 2.4vw, 26px);
  margin-bottom: 6px;
  position: relative;
}
.cta-band p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
  position: relative;
}

/* ============ 页脚（华为式浅灰） ============ */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 56px 0 0;
  margin-top: 80px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.4fr;
  gap: 32px;
  padding-bottom: 40px;
}
.footer-grid h4 {
  color: var(--text-dark);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}
.footer-grid a {
  display: block;
  font-size: 13px;
  padding: 4px 0;
  color: var(--footer-text);
  transition: color 0.35s var(--ease-smooth), transform 0.35s var(--ease-smooth);
}
.footer-grid a:hover {
  color: var(--brand-purple);
  transform: translateX(4px);
}
.footer-brand .logo img { filter: none !important; }
.footer-brand p {
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--footer-muted);
}
.footer-contact li {
  display: flex;
  gap: 10px;
  font-size: 13px;
  line-height: 1.9;
  color: var(--footer-text);
  padding: 4px 0;
}
.footer-contact svg {
  flex-shrink: 0;
  margin-top: 5px;
  color: var(--brand-purple);
}
.footer-bottom {
  border-top: 1px solid #E1E1E6;
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--footer-muted);
}
.footer-bottom a:hover { color: var(--brand-purple); }

/* ============ 页面头部 banner（内页·浅色杂志风） ============ */
.page-hero {
  position: relative;
  margin-top: var(--nav-h);
  padding: 108px 0 84px;
  background: linear-gradient(135deg, #F5F2FA, #ECE8F6);
  border-bottom: 1px solid var(--hairline-gray);
  color: var(--text-dark);
  text-align: center;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  border: 1px solid rgba(91, 44, 135, 0.1);
}
.page-hero::after {
  content: "";
  position: absolute;
  left: -80px;
  bottom: -140px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  border: 1px solid rgba(91, 44, 135, 0.08);
}
.page-hero .kicker {
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--brand-purple);
  margin-bottom: 12px;
  position: relative;
  z-index: 2;
}
.page-hero h1 {
  font-size: clamp(26px, 3.2vw, 38px);
  font-weight: 600;
  letter-spacing: 1px;
  position: relative;
  z-index: 2;
}
.page-hero h1 .en {
  display: block;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 10px;
}
.page-hero .breadcrumb {
  margin-top: 18px;
  font-size: 12.5px;
  color: var(--text-muted);
  position: relative;
  z-index: 2;
}
.page-hero .breadcrumb a:hover { color: var(--brand-purple); }

/* ============ 子页通用内容 ============ */
.content-block { padding: 72px 0; }
.content-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.content-split .visual {
  border-radius: var(--radius-card);
  overflow: hidden;
}
.content-split .visual img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}
.content-split .kicker {
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--brand-purple);
  font-weight: 600;
  margin-bottom: 10px;
}
.content-split h2 {
  font-size: clamp(20px, 2.4vw, 28px);
  color: var(--text-dark);
  margin-bottom: 16px;
  line-height: 1.45;
}
.content-split p {
  font-size: 14.5px;
  line-height: 1.95;
  margin-bottom: 14px;
}

/* 规格清单 */
.spec-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.spec-card {
  background: #fff;
  border: 1px solid var(--hairline-gray);
  border-radius: var(--radius-card);
  padding: 26px 24px;
  transition: transform 0.4s var(--ease-smooth), box-shadow 0.4s var(--ease-smooth);
}
.spec-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.spec-card h3 { font-size: 15.5px; color: var(--text-dark); margin-bottom: 10px; }
.spec-card h3 .en {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 4px;
}
.spec-card ul li {
  font-size: 14px;
  line-height: 2;
  color: var(--text-body);
  padding-left: 18px;
  position: relative;
}
.spec-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-purple-light);
}

/* 信息卡片（联系我们/加入） */
.info-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.info-card {
  background: #fff;
  border: 1px solid var(--hairline-gray);
  border-radius: var(--radius-card);
  padding: 26px 24px;
  transition: transform 0.4s var(--ease-smooth), box-shadow 0.4s var(--ease-smooth);
}
.info-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.info-card .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(91, 44, 135, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-purple);
  margin-bottom: 14px;
}
.info-card h3 { font-size: 15px; color: var(--text-dark); margin-bottom: 6px; }
.info-card p { font-size: 13.5px; line-height: 1.9; }

/* 分公司 */
.branch-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.branch-card {
  background: #fff;
  border: 1px solid var(--hairline-gray);
  border-radius: var(--radius-card);
  padding: 22px 24px;
  transition: transform 0.4s var(--ease-smooth), box-shadow 0.4s var(--ease-smooth);
}
.branch-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.branch-card h3 {
  font-size: 15.5px;
  color: var(--text-dark);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.branch-card h3::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-purple-light);
}
.branch-card p { font-size: 13.5px; line-height: 2; color: var(--text-body); }

/* 表单 */
.form-card {
  max-width: 760px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--hairline-gray);
  border-radius: var(--radius-card);
  padding: 36px;
  box-shadow: var(--shadow-soft);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { display: flex; flex-direction: column; gap: 7px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-dark);
}
.form-field label .req { color: #C0392B; }
.form-field input,
.form-field textarea {
  border: 1px solid var(--hairline-gray);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text-dark);
  background: var(--bg-light);
  transition: border-color 0.35s var(--ease-smooth), box-shadow 0.35s var(--ease-smooth);
  outline: none;
}
.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--brand-purple);
  box-shadow: 0 0 0 3px rgba(91, 44, 135, 0.1);
  background: #fff;
}
.form-field textarea { min-height: 130px; resize: vertical; }
.form-submit { text-align: center; margin-top: 28px; }
.form-tip {
  margin-top: 18px;
  padding: 12px 16px;
  border-radius: 10px;
  background: rgba(91, 44, 135, 0.08);
  color: var(--brand-purple);
  font-size: 14px;
  text-align: center;
}

/* 资质荣誉 */
.honor-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.honor-card {
  background: #fff;
  border: 1px solid var(--hairline-gray);
  border-radius: var(--radius-card);
  padding: 22px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform 0.4s var(--ease-smooth), box-shadow 0.4s var(--ease-smooth);
}
.honor-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.honor-card .badge {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(91, 44, 135, 0.08);
  color: var(--brand-purple);
  display: flex;
  align-items: center;
  justify-content: center;
}
.honor-card .name { font-size: 14.5px; font-weight: 600; color: var(--text-dark); line-height: 1.5; }

/* 滚动显现 */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-smooth), transform 0.7s var(--ease-smooth);
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-split, .content-split { grid-template-columns: 1fr; gap: 40px; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .section { padding: 56px 0; }
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--hairline-gray);
    box-shadow: var(--shadow-card);
    padding: 12px 20px 20px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.35s var(--ease-smooth), transform 0.35s var(--ease-smooth), visibility 0.35s;
    max-height: calc(100vh - var(--nav-h));
    overflow-y: auto;
  }
  .main-nav.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 2px; }
  .main-nav a { padding: 12px 14px; font-size: 14px; }
  .has-dropdown .dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: none;
    padding: 0 0 0 16px;
    min-width: 0;
  }
  .hero-content h1 { font-size: 30px; }
  .hero { min-height: 560px; }
  .cta-band { flex-direction: column; text-align: center; padding: 40px 26px; }
  .news-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .news-item { flex-direction: column; align-items: flex-start; gap: 6px; }
  .about-metrics { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .about-metrics .num { font-size: 22px; }
}

@media (max-width: 480px) {
  .about-metrics { grid-template-columns: 1fr; }
  .logo-text .cn { font-size: 15.5px; }
  .logo img { height: 26px; }
}

/* 尊重减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}