/* global.css - 金峰门窗设计系统与全局样式 */

/* 1. 变量与设计系统 */
:root {
  --color-bg: #ffffff;
  --color-bg-light: #f8f9fa;
  --color-bg-dark: #111111;
  --color-text-dark: #111111;
  --color-text-mid: #555555;
  --color-text-light: #888888;
  --color-accent: #78BE20; /* 标志性旭格绿 */
  --color-accent-hover: #67a31b;
  --color-border: #e5e5e5;
  
  --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
  
  --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-normal: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  
  --max-width: 1400px;
}

/* 2. 重置与基本样式 */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--color-bg);
  color: var(--color-text-dark);
  font-family: var(--font-primary);
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  line-height: 1.6;
}

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

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

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

/* 3. 滚动条美化 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg-light);
}
::-webkit-scrollbar-thumb {
  background: var(--color-text-light);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-mid);
}

/* 4. 排版系统 */
h1, h2, h3, h4, h5, h6 {
  font-weight: 300;
  letter-spacing: 0.05em;
  line-height: 1.2;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 1.5rem;
  color: var(--color-text-dark);
  position: relative;
  text-transform: uppercase;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-mid);
  margin-bottom: 3rem;
  max-width: 700px;
  font-weight: 300;
}

/* 5. 布局网格 */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.grid {
  display: grid;
  gap: 2rem;
}

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

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .section-title { font-size: 1.8rem; }
}

@media (max-width: 768px) {
  .container { padding: 0 1.25rem; }
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* 6. 置顶导航栏 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: background-color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.header.scrolled {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
  transition: height var(--transition-normal);
}

.header.scrolled .header-container {
  height: 70px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: #fff;
  transition: color var(--transition-normal);
}

.logo-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  display: inline-block;
}

.header.scrolled .logo-text {
  color: var(--color-text-dark);
}

/* 导航链接 */
.nav-list {
  display: flex;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 400;
  letter-spacing: 0.05em;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-fast) ease, left var(--transition-fast) ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
  left: 0;
}

.nav-link:hover {
  color: #fff;
}

.header.scrolled .nav-link {
  color: var(--color-text-mid);
}

.header.scrolled .nav-link:hover,
.header.scrolled .nav-link.active {
  color: var(--color-text-dark);
}

/* 导航操作区 */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.btn-cta {
  background-color: var(--color-accent);
  color: #fff;
  padding: 0.6rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 2px;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  cursor: pointer;
}

.btn-cta:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-1px);
}

.btn-cta:active {
  transform: translateY(0);
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  cursor: pointer;
}

.menu-toggle span {
  width: 100%;
  height: 2px;
  background-color: #fff;
  transition: transform var(--transition-normal), opacity var(--transition-normal), background-color var(--transition-normal);
}

.header.scrolled .menu-toggle span {
  background-color: var(--color-text-dark);
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  
  .nav-list {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-bg-dark);
    flex-direction: column;
    gap: 0;
    padding: 1rem 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .nav-list.active {
    max-height: 400px;
  }
  
  .nav-link {
    padding: 1rem 2rem;
    display: block;
    color: #fff !important;
  }
  
  .nav-link::after {
    display: none;
  }
  
  .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.05);
  }
}

/* 7. Footer 底部 */
.footer {
  background-color: var(--color-bg-dark);
  color: #fff;
  padding: 5rem 0 2rem 0;
  font-weight: 300;
  border-top: 5px solid var(--color-accent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 2fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-brand h4 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  letter-spacing: 0.1em;
}

.footer-brand p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  max-width: 320px;
}

.footer-links-col h5 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: #fff;
}

.footer-links-col ul li {
  margin-bottom: 0.8rem;
}

.footer-links-col ul li a {
  color: var(--color-text-light);
  font-size: 0.9rem;
}

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

.footer-contact h5 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: #fff;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: var(--color-text-light);
}

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

.footer-qr {
  display: flex;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.qr-box {
  text-align: center;
}

.qr-placeholder {
  width: 90px;
  height: 90px;
  background-color: #fff;
  padding: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.5rem;
  border-radius: 4px;
}

.qr-placeholder span {
  font-size: 0.65rem;
  color: #111;
  font-weight: bold;
}

.qr-box p {
  font-size: 0.75rem;
  color: var(--color-text-light);
}

/* 底部版权 */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--color-text-light);
}

.footer-legal-links {
  display: flex;
  gap: 1.5rem;
}

.footer-legal-links a:hover {
  color: var(--color-accent);
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  .footer-legal-links {
    justify-content: center;
    flex-wrap: wrap;
  }
}

/* 8. 统一样式组件 */
.btn-outline {
  border: 1px solid var(--color-text-dark);
  color: var(--color-text-dark);
  padding: 0.8rem 2rem;
  font-size: 0.9rem;
  font-weight: 500;
  display: inline-block;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  border-radius: 2px;
}

.btn-outline:hover {
  background-color: var(--color-text-dark);
  color: #fff;
}

.card-tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 0.5rem;
  display: inline-block;
}

/* 9. 表单通用样式 */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--color-text-dark);
}

.form-input {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--color-border);
  background-color: #fff;
  color: var(--color-text-dark);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast);
}

.form-input:focus {
  border-color: var(--color-accent);
}

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

/* 10. 电话高亮与拨号按钮 */
.phone-highlight-btn {
  background-color: var(--color-accent);
  color: #fff !important;
  font-weight: bold;
  padding: 0.6rem 1.2rem;
  border-radius: 30px;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 4px 10px rgba(120, 190, 32, 0.3);
  transition: all var(--transition-fast);
}

.phone-highlight-btn:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
}

.contact-banner {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  padding: 4rem;
  border-radius: 2px;
  text-align: center;
  box-shadow: 0 15px 40px rgba(0,0,0,0.02);
}

.contact-phone-large {
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--color-accent);
  margin: 1.5rem 0;
  display: inline-block;
  letter-spacing: 0.05em;
  transition: color var(--transition-fast), transform var(--transition-fast);
  text-decoration: underline;
}

.contact-phone-large:hover {
  color: var(--color-accent-hover);
  transform: scale(1.03);
}

/* 11. 玻璃款式展示网格 */
.glass-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.glass-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all var(--transition-normal);
  border-radius: 2px;
}

.glass-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0,0,0,0.06);
  border-color: rgba(120, 190, 32, 0.3);
}

.glass-img-box {
  height: 250px;
  overflow: hidden;
}

.glass-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.glass-info {
  padding: 1.8rem;
}

.glass-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
  color: var(--color-text-dark);
}

.glass-desc {
  font-size: 0.9rem;
  color: var(--color-text-mid);
  line-height: 1.6;
  font-weight: 300;
}

@media (max-width: 1024px) {
  .glass-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .glass-grid {
    grid-template-columns: 1fr;
  }
  .contact-phone-large {
    font-size: 2rem;
  }
}