/* ============================================
   道可道翻译 DocDoc Languages - 新站样式
   设计：现代专业风格，深青绿+暖金配色
   响应式：PC / 平板 / 手机自适应
   ============================================ */

/* --- 字体引入 --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:wght@400;600;700&display=swap');

/* --- 设计变量 --- */
:root {
  --color-primary: #0d3b3e;        /* 深青绿 - 主色 */
  --color-primary-light: #1a5559;  /* 浅青绿 */
  --color-primary-dark: #062325;   /* 深青绿 */
  --color-gold: #c9a961;           /* 暖金 - 辅色 */
  --color-gold-light: #dcc28a;
  --color-coral: #e85d3c;          /* 珊瑚橙 - 强调/CTA */
  --color-coral-dark: #c84823;
  --color-bg: #faf8f3;             /* 象牙白背景 */
  --color-bg-alt: #f0ede4;         /* 米色背景 */
  --color-text: #1a1a1a;           /* 深色文字 */
  --color-text-light: #5a5a5a;     /* 浅色文字 */
  --color-text-muted: #8a8a8a;     /* 更浅文字 */
  --color-border: #e0dcd1;         /* 边框色 */
  --color-white: #ffffff;
  --color-shadow: rgba(13, 59, 62, 0.08);
  --color-shadow-hover: rgba(13, 59, 62, 0.15);

  --font-zh: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
  --font-en-serif: 'Playfair Display', Georgia, serif;
  --font-en-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 999px;

  --shadow-sm: 0 2px 8px var(--color-shadow);
  --shadow-md: 0 6px 24px var(--color-shadow);
  --shadow-lg: 0 12px 40px var(--color-shadow-hover);

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

/* --- 基础重置 --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-zh);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

p, li, .section-subtitle, .hero-subtitle {
  text-wrap: pretty;
}

[lang="en"] {
  font-family: var(--font-en-sans);
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

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

ul { list-style: none; }

/* --- 通用容器 --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- 通用按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-coral);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(232, 93, 60, 0.3);
}

.btn-primary:hover {
  background: var(--color-coral-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232, 93, 60, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-gold {
  background: var(--color-gold);
  color: var(--color-white);
}

.btn-gold:hover {
  background: #b8965133;
  color: var(--color-white);
  transform: translateY(-2px);
}

/* --- 通用标题区 --- */
.section {
  padding: 96px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  margin-bottom: 16px;
}

[lang="en"] .section-title {
  font-family: var(--font-en-serif);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-light);
  max-width: 640px;
  margin: 0 auto;
}

/* ============================================
   导航栏
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 248, 243, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--color-primary);
}

.logo-img {
  height: 44px;
  width: auto;
  max-width: 220px;
  display: block;
}

/* 旧版 logo 文字样式，保留兼容 */
.logo-mark {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold);
  font-family: var(--font-en-serif);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-text .zh {
  font-size: 1.1rem;
  font-weight: 700;
}

.logo-text .en {
  font-size: 0.7rem;
  color: var(--color-gold);
  font-family: var(--font-en-serif);
  letter-spacing: 0.05em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-menu a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding: 8px 0;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-menu a:hover {
  color: var(--color-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--color-text-light);
  cursor: pointer;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.lang-switch:hover {
  border-color: var(--color-gold);
  color: var(--color-primary);
}

.nav-cta {
  padding: 10px 24px;
  font-size: 0.9rem;
}

/* 移动端汉堡 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
  border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   Hero 首页主视觉
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background: linear-gradient(135deg, rgba(6, 35, 37, 0.82) 0%, rgba(13, 59, 62, 0.72) 50%, rgba(26, 85, 89, 0.62) 100%), url('../images/hero-bg.jpg') center/cover no-repeat;
  color: var(--color-white);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(201, 169, 97, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(26, 85, 89, 0.4) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(201, 169, 97, 0.15);
  border: 1px solid rgba(201, 169, 97, 0.4);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--color-gold-light);
  margin-bottom: 24px;
  font-weight: 500;
}

.hero-eyebrow .dot {
  width: 6px;
  height: 6px;
  background: var(--color-gold);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

[lang="en"] .hero h1 {
  font-family: var(--font-en-serif);
}

.hero h1 .accent {
  color: var(--color-gold);
  font-style: italic;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 40px;
  max-width: 600px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  max-width: 720px;
}

.hero-stat .num {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--color-gold);
  font-family: var(--font-en-serif);
  line-height: 1;
  margin-bottom: 8px;
}

.hero-stat .label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   服务卡片
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

/* 行业方案页：8个卡片排成 4×2，避免最后一行空缺 */
.industries-cards {
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.industries-cards .service-card {
  padding: 0 0 20px;
}

.industries-cards .card-banner {
  margin: 0 0 16px;
  height: 140px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.industries-cards .service-card h3,
.industries-cards .service-card p,
.industries-cards .service-card ul,
.industries-cards .card-link {
  padding: 0 20px;
}

.industries-cards .service-card h3 {
  margin-top: 0;
  font-size: 1.1rem;
}

.industries-cards .service-card p {
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.industries-cards .service-card ul {
  margin-bottom: 12px;
}

.industries-cards .service-card ul li {
  font-size: 0.85rem;
  padding: 4px 0 4px 18px;
}

.industries-cards .card-link {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, rgba(13, 59, 62, 0.08), rgba(201, 169, 97, 0.08));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 24px;
  color: var(--color-primary);
}

.service-icon img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.card-banner {
  margin: -32px -28px 20px;
  height: 180px;
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.card-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.service-card:hover .card-banner img {
  transform: scale(1.06);
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.service-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.service-card ul {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.service-card ul li {
  padding: 4px 0 4px 20px;
  position: relative;
}

.service-card ul li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--color-gold);
  font-weight: 700;
}

.service-card .en-name {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-family: var(--font-en-sans);
  margin-top: 2px;
  font-style: italic;
}

/* ============================================
   行业解决方案网格
   ============================================ */
.industries-bg {
  background: var(--color-bg-alt);
}

.industries-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.industry-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
  border: 1px solid transparent;
}

.industry-item:hover {
  border-color: var(--color-gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.industry-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.industry-item:hover .industry-img {
  transform: scale(1.08);
}

.industry-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px 20px 18px;
  background: linear-gradient(to top, rgba(13, 59, 62, 0.85) 30%, transparent 100%);
  text-align: center;
}

.industry-item h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 4px;
}

.industry-item .en {
  font-size: 0.78rem;
  color: var(--color-gold);
  font-family: var(--font-en-sans);
  font-style: italic;
}

/* ============================================
   公司优势 - 4大承诺
   ============================================ */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.advantage-card {
  text-align: center;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px 28px 32px;
  transition: var(--transition);
  border: 1px solid var(--color-border);
  position: relative;
}

.advantage-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.advantage-icon img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.advantage-num {
  font-family: var(--font-en-serif);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-gold);
  opacity: 0.3;
  line-height: 1;
  margin-bottom: 16px;
}

.advantage-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.advantage-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* ============================================
   服务流程 - 5步时间线
   ============================================ */
.process-bg {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: var(--color-white);
}

.process-bg .section-title {
  color: var(--color-white);
}

.process-bg .section-subtitle {
  color: rgba(255, 255, 255, 0.75);
}

.process-bg .section-eyebrow {
  color: var(--color-gold-light);
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  position: relative;
}

.process-timeline::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: rgba(201, 169, 97, 0.3);
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 2;
}

.process-step-num {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--color-gold);
  color: var(--color-primary-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-en-serif);
  font-size: 1.5rem;
  font-weight: 700;
  box-shadow: 0 4px 16px rgba(201, 169, 97, 0.4);
}

.process-step h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-white);
}

.process-step p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  padding: 0 8px;
}

/* ============================================
   为什么道可道值得作为您的心选
   ============================================ */
.showcase-bg {
  background: var(--color-white);
}

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

.why-card {
  display: block;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
}

.why-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.why-img {
  overflow: hidden;
  aspect-ratio: 16/10;
}

.why-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.why-card:hover .why-img img {
  transform: scale(1.05);
}

.why-body {
  padding: 28px;
}

.why-body h3 {
  font-size: 1.25rem;
  color: var(--color-primary);
  margin-bottom: 12px;
  font-weight: 700;
}

.why-body h3 span {
  color: var(--color-gold);
}

.why-body p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

@media (max-width: 992px) {
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .why-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   CTA 区块
   ============================================ */
.cta-section {
  background: linear-gradient(135deg, var(--color-gold), #b8964f);
  padding: 80px 0;
  text-align: center;
  color: var(--color-white);
}

.cta-section h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 16px;
}

[lang="en"] .cta-section h2 {
  font-family: var(--font-en-serif);
}

.cta-section p {
  font-size: 1.1rem;
  margin-bottom: 32px;
  opacity: 0.95;
}

.cta-section .btn {
  background: var(--color-white);
  color: var(--color-primary);
  font-size: 1rem;
  padding: 16px 40px;
}

.cta-section .btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ============================================
   关于我们页
   ============================================ */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: var(--color-white);
  padding: 160px 0 80px;
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  margin-bottom: 16px;
}

[lang="en"] .page-hero h1 {
  font-family: var(--font-en-serif);
}

.page-hero .breadcrumb {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}

.page-hero .breadcrumb a:hover {
  color: var(--color-gold-light);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text p {
  margin-bottom: 20px;
  color: var(--color-text-light);
  font-size: 1.02rem;
}

.about-highlight {
  background: var(--color-white);
  border-left: 4px solid var(--color-gold);
  padding: 24px 28px;
  border-radius: var(--radius-md);
  margin: 24px 0;
  box-shadow: var(--shadow-sm);
}

.about-highlight p {
  margin: 0;
  color: var(--color-text);
  font-style: italic;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.about-stat {
  text-align: center;
  padding: 28px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.about-stat .num {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-gold);
  font-family: var(--font-en-serif);
  line-height: 1;
  margin-bottom: 8px;
}

.about-stat .label {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* 价值观 */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.value-card {
  background: var(--color-white);
  padding: 40px 32px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border-top: 4px solid var(--color-gold);
  transition: var(--transition);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.value-card h3 {
  color: var(--color-primary);
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.value-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* ============================================
   服务详情页
   ============================================ */
.services-detail .service-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 80px;
  align-items: center;
  background: transparent;
  border-radius: 0;
  box-shadow: none;
  transition: var(--transition);
}

.services-detail a.service-block:hover {
  transform: translateY(-4px);
}

.service-block:nth-child(even) .service-block-text {
  order: 2;
}

.service-block-text h3 {
  font-size: 1.6rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.service-block-text .en-sub {
  color: var(--color-gold);
  font-family: var(--font-en-serif);
  font-style: italic;
  margin-bottom: 20px;
  display: block;
}

.service-block-text p {
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.service-block-text ul {
  margin-top: 16px;
}

.service-block-text ul li {
  padding: 6px 0 6px 24px;
  position: relative;
  color: var(--color-text-light);
}

.service-block-text ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-gold);
  font-weight: 700;
}

.service-block-visual {
  border-radius: var(--radius-lg);
  min-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  background: var(--color-bg-alt);
}

.service-block-visual img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: contain;
  display: block;
  transition: transform 0.5s ease;
}

.service-block:hover .service-block-visual img {
  transform: scale(1.02);
}

/* ============================================
   联系页
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info h3 {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.contact-list li {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-list .icon {
  width: 44px;
  height: 44px;
  background: rgba(13, 59, 62, 0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-list .label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.contact-list .value {
  font-size: 1.05rem;
  color: var(--color-text);
  font-weight: 500;
}

.contact-form {
  background: var(--color-white);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.contact-form h3 {
  font-size: 1.4rem;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  background: var(--color-bg);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-gold);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(201, 169, 97, 0.1);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

/* 表单辅助选项：腾讯问卷 */
.form-alt-options {
  margin-top: 16px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.form-alt-options span {
  margin-right: 6px;
}

.form-alt-options .survey-link {
  color: var(--color-gold);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.form-alt-options .survey-link:hover {
  color: var(--color-primary);
}

/* ============================================
   页脚
   ============================================ */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 72px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .logo {
  color: var(--color-white);
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 20px;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-col ul li {
  padding: 6px 0;
}

.footer-col ul li a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}

.footer-col ul li a:hover {
  color: var(--color-gold-light);
}

.footer-contact .item {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.9rem;
}

.footer-contact .item .icon {
  color: var(--color-gold);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.6);
}

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

/* ============================================
   响应式
   ============================================ */
@media (max-width: 980px) {
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: 24px;
    gap: 8px;
    box-shadow: var(--shadow-md);
    transform: translateY(-150%);
    transition: var(--transition);
    align-items: flex-start;
  }

  .nav-menu.active {
    transform: translateY(0);
  }

  .nav-menu a {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-cta {
    display: none;
  }

  .services-grid,
  .industries-grid,
  .advantages-grid,
  .showcase-grid,
  .why-grid,
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .industries-cards .service-card {
    padding: 0 0 28px;
  }

  .industries-cards .service-card h3,
  .industries-cards .service-card p,
  .industries-cards .service-card ul,
  .industries-cards .card-link {
    padding: 0 28px;
  }

  .industries-cards .service-card h3 {
    font-size: 1.2rem;
  }

  .industries-cards .service-card p,
  .industries-cards .service-card ul li {
    font-size: 1rem;
  }

  .industries-cards .card-banner {
    height: 180px;
  }

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

  .process-timeline::before {
    display: none;
  }

  .about-content,
  .contact-grid,
  .service-block {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .service-block:nth-child(even) .service-block-text {
    order: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 64px 0;
  }

  .container {
    padding: 0 20px;
  }

  .services-grid,
  .industries-grid,
  .advantages-grid,
  .showcase-grid,
  .why-grid,
  .values-grid,
  .about-stats {
    grid-template-columns: 1fr;
  }

  .industries-cards {
    grid-template-columns: 1fr;
  }

  .process-timeline {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: 28px 20px;
  }
}

/* ============================================
   动画
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-alt);
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary-light);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

/* 选中文本 */
::selection {
  background: var(--color-gold);
  color: var(--color-white);
}

/* ============================================
   卡片可点击（a 标签版）
   ============================================ */
a.service-card,
a.service-block {
  display: block;
  text-decoration: none;
  color: inherit;
}

a.service-block {
  display: grid;
}

.card-link {
  display: inline-block;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  color: var(--color-gold);
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
}

a.service-card:hover .card-link,
a.service-block:hover .card-link {
  color: var(--color-primary);
  letter-spacing: 1px;
}

/* 服务详情页相关服务 */
.service-related {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 56px;
}

.service-related .btn-secondary {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.service-related .btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ============================================
   行业详情页
   ============================================ */
.industry-detail {
  max-width: 900px;
  margin: 0 auto;
}

.industry-banner {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 48px;
  box-shadow: var(--shadow-md);
}

.industry-banner img {
  width: 100%;
  height: auto;
  display: block;
  max-height: 400px;
  object-fit: cover;
}

.industry-intro {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--color-text-light);
  margin-bottom: 48px;
  padding: 0 16px;
}

.industry-features {
  list-style: none;
  padding: 0;
  margin-bottom: 56px;
}

.industry-features li {
  padding: 16px 0 16px 36px;
  position: relative;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text-light);
  border-bottom: 1px solid var(--color-border);
}

.industry-features li::before {
  content: '\25C6';
  position: absolute;
  left: 0;
  top: 16px;
  color: var(--color-gold);
  font-size: 0.9rem;
}

.industry-solutions {
  display: grid;
  gap: 24px;
  margin-bottom: 56px;
}

.industry-solutions .solution-item {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 28px 32px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.industry-solutions .solution-item:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-md);
}

.industry-solutions .solution-item h4 {
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 12px;
  font-weight: 600;
}

.industry-solutions .solution-item p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--color-text-light);
  margin: 0;
}

.industry-services ul {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}

.industry-services ul li {
  padding: 14px 20px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--color-text-light);
  border-left: 3px solid var(--color-gold);
  transition: var(--transition);
}

.industry-services ul li:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-left-color: var(--color-gold);
}