/* ========== 设计变量 ========== */
:root {
  /* 主色调 */
  --primary-dark: #1a3559;       /* 深蓝 - 导航、Hero 主色 */
  --primary-blue: #2a5298;       /* 蓝色 */
  --primary-teal: #0d8077;       /* 青绿渐变终点 */
  --primary-gradient: linear-gradient(135deg, #1e3a5f 0%, #2563a8 35%, #14b8a6 100%);
  --btn-gradient: linear-gradient(135deg, #2563a8 0%, #14b8a6 100%);

  /* 文字颜色 */
  --text-primary: #1f2937;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --text-white: #ffffff;

  /* 背景颜色 */
  --bg-white: #ffffff;
  --bg-light: #f5f7fa;
  --bg-dark: #0f1f3d;
  --bg-footer: #0c1a33;

  /* 边框 */
  --border-color: #e5e7eb;
  --border-radius: 10px;
  --border-radius-lg: 16px;
  --border-radius-xl: 20px;

  /* 阴影 */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.2);

  /* 间距 */
  --section-padding: 80px 0;
  --container-width: 1200px;

  /* 字体 */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

/* ========== Reset & Base ========== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  color: var(--text-primary);
  line-height: 1.6;
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

ul {
  list-style: none;
}

input {
  font-family: inherit;
  outline: none;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== 导航栏 ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

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

.nav-logo-icon {
  width: 38px;
  height: 38px;
  background: var(--primary-gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 16px;
}

.nav-logo-text {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: 0.5px;
}

.nav-logo-sub {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 2px;
  margin-top: 2px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  font-size: 15px;
  color: var(--text-secondary);
  font-weight: 500;
  border-radius: 6px;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-blue);
  background: rgba(42, 82, 152, 0.06);
}

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

.btn-login {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
  padding: 8px 4px;
}

.btn-login:hover {
  color: var(--primary-blue);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--primary-gradient);
  color: var(--text-white);
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 12px rgba(42, 82, 152, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(42, 82, 152, 0.35);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: transparent;
  color: var(--text-white);
  font-size: 14px;
  font-weight: 600;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  border-radius: 8px;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.9);
}

/* ========== Hero Banner ========== */
.hero {
  position: relative;
  min-height: 620px;
  background: var(--primary-gradient);
  padding: 140px 0 80px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 20px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 12px;
  letter-spacing: 1px;
  margin-bottom: 28px;
}

.hero-title {
  font-size: 52px;
  font-weight: 800;
  color: var(--text-white);
  line-height: 1.2;
  letter-spacing: 1px;
  margin-bottom: 24px;
}

.hero-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.8;
  max-width: 560px;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
}

/* Hero 右侧统计卡片 */
.hero-right {
  position: relative;
}

.hero-right::before {
  content: '';
  position: absolute;
  top: -20px;
  right: -20px;
  width: calc(100% + 40px);
  height: calc(100% + 40px);
  border: 2px solid rgba(255, 255, 255, 0.12);
  border-radius: calc(var(--border-radius-xl) + 8px);
  pointer-events: none;
}

.hero-stats {
  position: relative;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--border-radius-xl);
  padding: 40px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 42px;
  font-weight: 800;
  color: var(--text-white);
  line-height: 1.1;
  margin-bottom: 8px;
}

.stat-number .unit {
  font-size: 24px;
  font-weight: 600;
}

.stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 1px;
}

/* ========== 通用 Section 样式 ========== */
.section {
  padding: var(--section-padding);
}

.section-alt {
  background: var(--bg-light);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary-blue);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
}

.section-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 12px;
}

/* ========== 关于我们 ========== */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-left {
  text-align: left;
}

.about-left .section-header {
  text-align: left;
  margin-bottom: 28px;
}

.about-quote {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 28px;
  position: relative;
  padding-left: 16px;
}

.about-quote::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background: var(--primary-gradient);
  border-radius: 2px;
}

.about-text {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 20px;
}

.about-right {
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-image-placeholder {
  width: 100%;
  height: 320px;
  background: var(--primary-gradient);
  border-radius: var(--border-radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  box-shadow: var(--shadow-lg);
}

.about-image-icon {
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 700;
}

.about-image-label {
  color: rgba(255, 255, 255, 0.9);
  font-size: 14px;
  padding: 10px 24px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 8px;
}

/* ========== 服务内容 ========== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-white);
  border-radius: var(--border-radius-lg);
  padding: 36px 28px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

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

.service-number {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary-blue);
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.service-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(42, 82, 152, 0.1), rgba(13, 148, 136, 0.1));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-icon svg {
  width: 28px;
  height: 28px;
  color: var(--primary-blue);
}

.service-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.service-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

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

.advantage-item {
  text-align: center;
  padding: 32px 20px;
}

.advantage-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, rgba(42, 82, 152, 0.08), rgba(13, 148, 136, 0.08));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.advantage-icon svg {
  width: 30px;
  height: 30px;
  color: var(--primary-blue);
}

.advantage-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.advantage-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ========== 联系我们 ========== */
#contact.section {
  padding: 40px 0;
}

.contact-section-title {
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 28px;
  letter-spacing: 2px;
}

.contact-card {
  background: var(--primary-gradient);
  border-radius: var(--border-radius-lg);
  padding: 28px 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.contact-qr {
  position: relative;
  z-index: 1;
  text-align: center;
}

.contact-qr-wrap {
  width: 100px;
  height: 100px;
  background: var(--bg-white);
  border-radius: 10px;
  padding: 8px;
  margin: 0 auto 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.contact-qr-img {
  width: 100%;
  height: 100%;
  border-radius: 4px;
}

.contact-qr-label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 1px;
}

.contact-divider {
  width: 1px;
  height: 80px;
  background: rgba(255, 255, 255, 0.25);
  position: relative;
  z-index: 1;
}

.contact-email {
  position: relative;
  z-index: 1;
  color: var(--text-white);
  text-align: left;
}

.contact-email-icon {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  backdrop-filter: blur(6px);
}

.contact-email-icon svg {
  width: 18px;
  height: 18px;
  color: var(--text-white);
}

.contact-email .contact-label {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 6px;
  letter-spacing: 1px;
}

.contact-email-value {
  display: inline-block;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 6px;
  word-break: break-all;
}

.contact-email-value:hover {
  text-decoration: underline;
}

.contact-email-hint {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.65);
}

/* ========== 页脚 ========== */
.footer {
  background: var(--bg-footer);
  padding: 32px 0;
  text-align: center;
}

.footer-text {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-text a {
  color: rgba(255, 255, 255, 0.8);
}

.footer-text a:hover {
  color: var(--text-white);
}

/* ========== 登录页面 ========== */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1a3559 0%, #2a5298 50%, #0d9488 100%);
  padding: 24px;
}

.login-container {
  width: 100%;
  max-width: 960px;
  min-height: 580px;
  display: grid;
  grid-template-columns: 44% 56%;
  background: var(--bg-white);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

/* 登录页 - 左侧品牌区 */
.login-brand {
  background: var(--primary-gradient);
  padding: 48px 44px;
  display: flex;
  flex-direction: column;
  color: var(--text-white);
  position: relative;
  overflow: hidden;
}

.login-brand::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.login-brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 48px;
  position: relative;
  z-index: 1;
}

.brand-logo-icon {
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-white);
  backdrop-filter: blur(10px);
}

.brand-logo-text {
  font-size: 18px;
  font-weight: 700;
}

.login-brand-content {
  flex: 1;
  position: relative;
  z-index: 1;
}

.login-brand-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}

.login-brand-subtitle {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
}

.login-brand-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 40px;
  line-height: 1.6;
}

.login-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.login-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
}

.login-feature-icon {
  width: 20px;
  height: 20px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--text-white);
  flex-shrink: 0;
}

.login-brand-footer {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  position: relative;
  z-index: 1;
  margin-top: 24px;
}

/* 登录页 - 右侧表单区 */
.login-form-area {
  padding: 48px 44px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.login-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--text-muted);
  transition: background 0.2s ease, color 0.2s ease;
}

.login-close:hover {
  background: var(--bg-light);
  color: var(--text-primary);
}

.login-header {
  margin-bottom: 32px;
}

.login-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.login-subtitle {
  font-size: 14px;
  color: var(--text-muted);
}

/* Tab 切换 */
.login-tabs {
  display: flex;
  gap: 32px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--border-color);
}

.login-tab {
  padding: 12px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-muted);
  position: relative;
  cursor: pointer;
  transition: color 0.2s ease;
}

.login-tab.active {
  color: var(--primary-blue);
}

.login-tab.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary-gradient);
  border-radius: 1px;
}

/* 表单 */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  position: relative;
}

.form-input {
  width: 100%;
  height: 48px;
  padding: 0 44px 0 44px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-white);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(42, 82, 152, 0.1);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  pointer-events: none;
}

.form-eye {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.2s ease;
}

.form-eye:hover {
  color: var(--primary-blue);
}

.form-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text-secondary);
}

.form-checkbox input {
  width: 16px;
  height: 16px;
  accent-color: var(--primary-blue);
  cursor: pointer;
}

.form-forgot {
  color: var(--primary-blue);
  font-weight: 500;
}

.form-forgot:hover {
  text-decoration: underline;
}

.btn-login-primary {
  width: 100%;
  height: 48px;
  background: var(--btn-gradient);
  color: var(--text-white);
  font-size: 15px;
  font-weight: 600;
  border-radius: 10px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 12px rgba(42, 82, 152, 0.25);
}

.btn-login-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(42, 82, 152, 0.35);
}

/* 第三方登录 */
.login-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 8px 0;
  font-size: 13px;
  color: var(--text-muted);
}

.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

.login-social {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.social-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-light);
  color: var(--text-secondary);
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.social-btn:hover {
  transform: translateY(-2px);
  background: var(--primary-gradient);
  color: var(--text-white);
}

.social-btn svg {
  width: 18px;
  height: 18px;
}

/* 注册链接 */
.login-register {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: auto;
  padding-top: 24px;
}

.login-register a {
  color: var(--primary-blue);
  font-weight: 600;
}

.login-register a:hover {
  text-decoration: underline;
}

/* ========== 登录模态框 ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  padding: 24px;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 20, 40, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.modal-container.login-container {
  position: relative;
  z-index: 1;
  max-height: 90vh;
  animation: modalSlideUp 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalSlideUp {
  from {
    opacity: 0;
    transform: translateY(24px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* 模态框打开时禁止 body 滚动 */
body.modal-open {
  overflow: hidden;
}

body.modal-open .navbar {
  z-index: 0;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-stats {
    max-width: 520px;
    margin: 0 auto;
  }

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

  .contact-card {
    padding: 48px 40px;
    gap: 48px;
  }

  .contact-qr-wrap {
    width: 140px;
    height: 140px;
  }

  .contact-email-value {
    font-size: 20px;
  }

  .contact-divider {
    height: 120px;
  }

  .about {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .login-container {
    grid-template-columns: 1fr;
    max-width: 480px;
  }

  .login-brand {
    padding: 36px 32px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .hero {
    padding: 120px 0 60px;
    min-height: auto;
  }

  .hero-title {
    font-size: 36px;
  }

  .hero-stats {
    padding: 28px;
    gap: 24px;
  }

  .stat-number {
    font-size: 32px;
  }

  .section {
    padding: 56px 0;
  }

  .section-title {
    font-size: 28px;
  }

  .services-grid,
  .advantages-grid {
    grid-template-columns: 1fr;
  }

  .contact-card {
    flex-direction: column;
    padding: 40px 24px;
    gap: 32px;
  }

  .contact-divider {
    width: 60px;
    height: 1px;
  }

  .contact-email {
    text-align: center;
  }

  .contact-email-icon {
    margin: 0 auto 16px;
  }

  .contact-qr-wrap {
    width: 130px;
    height: 130px;
  }

  .contact-email-value {
    font-size: 20px;
  }

  .login-container {
    max-width: 420px;
    grid-template-columns: 1fr;
  }

  .login-brand {
    display: none;
  }

  .login-form-area {
    padding: 36px 28px;
  }
}

@media (max-width: 480px) {
  .contact-card {
    padding: 36px 20px;
    gap: 28px;
  }

  .contact-qr-wrap {
    width: 120px;
    height: 120px;
  }

  .contact-email-value {
    font-size: 18px;
  }

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

  .hero-actions .btn-primary,
  .hero-actions .btn-outline {
    justify-content: center;
  }
}