/* ========================================
   里物设计工作室 - GIFTS DESIGN
   全站样式表
   配色：鼠尾草绿 #4A5D3E | 深灰 #2D2D2D | 暖米 #C4B89F
   ======================================== */

/* ===== CSS 变量 ===== */
:root {
  --color-primary: #4A5D3E;
  --color-primary-light: #6B8257;
  --color-primary-dark: #3A4A30;
  --color-secondary: #2D2D2D;
  --color-accent: #C4B89F;
  --color-accent-light: #D9D0C0;
  --color-bg: #FAF8F5;
  --color-bg-alt: #F2EFE9;
  --color-white: #FFFFFF;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-text-muted: #999999;
  --color-border: #E8E4DC;
  --shadow-sm: 0 2px 8px rgba(45, 45, 45, 0.06);
  --shadow-md: 0 4px 20px rgba(45, 45, 45, 0.08);
  --shadow-lg: 0 8px 40px rgba(45, 45, 45, 0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 50px;
  --transition: 0.3s ease;
  --font-display: 'Noto Serif SC', 'Songti SC', Georgia, serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

/* ===== 重置 & 基础 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-dark); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== 按钮系统 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px; border-radius: var(--radius-full);
  font-size: 15px; font-weight: 500; cursor: pointer;
  border: 2px solid transparent; transition: all var(--transition);
  gap: 8px; white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary); color: var(--color-white);
  border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); color: var(--color-white); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline {
  background: transparent; color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary); color: var(--color-white); transform: translateY(-2px); }
.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-block { width: 100%; }

/* ===== 导航栏 ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}
.navbar.scrolled {
  box-shadow: var(--shadow-sm);
  border-bottom-color: var(--color-border);
}
.nav-container { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.nav-logo { display: flex; align-items: center; gap: 10px; z-index: 1001; }
.logo-img { height: 42px; width: auto; }
.logo-text {
  font-family: var(--font-display); font-size: 14px; font-weight: 700;
  line-height: 1.2; color: var(--color-secondary); letter-spacing: 1px;
}
.nav-menu {
  display: flex; align-items: center; gap: 32px;
}
.nav-link {
  color: var(--color-text); font-size: 15px; font-weight: 450;
  position: relative; padding: 4px 0;
}
.nav-link::after {
  content: ''; position: absolute; bottom: -4px; left: 0; width: 0;
  height: 2px; background: var(--color-primary);
  transition: width var(--transition);
}
.nav-link:hover { color: var(--color-primary); }
.nav-link:hover::after { width: 100%; }
.nav-cta {
  background: var(--color-primary); color: var(--color-white) !important;
  padding: 8px 22px; border-radius: var(--radius-full);
  font-weight: 500;
}
.nav-cta::after { display: none; }
.nav-cta:hover { background: var(--color-primary-dark) !important; transform: translateY(-1px); }

/* 汉堡菜单按钮 */
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; z-index: 1001; background: none; border: none; padding: 4px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--color-secondary); border-radius: 2px; transition: all 0.3s; }

/* ===== Hero 区 ===== */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  padding: 120px 0 80px; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(74, 93, 62, 0.07) 0%, transparent 60%),
    radial-gradient(circle at 80% 30%, rgba(196, 184, 159, 0.1) 0%, transparent 50%),
    linear-gradient(165deg, #FAF8F5 0%, #F2EDE4 40%, #EBE4D8 80%, #F5F1EA 100%);
  z-index: 0;
}
.hero-bg::before {
  content: ''; position: absolute; top: 10%; right: 5%;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74, 93, 62, 0.05) 0%, transparent 70%);
}
.hero-content {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.hero-badge {
  display: inline-block; padding: 8px 18px; background: var(--color-accent);
  color: var(--color-secondary); border-radius: var(--radius-full);
  font-size: 13px; font-weight: 600; margin-bottom: 24px;
}
.hero-title {
  font-family: var(--font-display); font-size: clamp(36px, 5vw, 56px);
  font-weight: 700; line-height: 1.2; color: var(--color-secondary);
  margin-bottom: 20px;
}
.hero-title .highlight { color: var(--color-primary); position: relative; }
.hero-title .highlight::after {
  content: ''; position: absolute; bottom: 4px; left: 0; right: 0;
  height: 8px; background: rgba(74, 93, 62, 0.15);
  border-radius: 4px; z-index: -1;
}
.hero-subtitle {
  font-family: var(--font-display); font-size: 20px;
  color: var(--color-primary); margin-bottom: 12px; font-weight: 600;
}
.hero-desc {
  font-size: 16px; color: var(--color-text-light); margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual { display: flex; justify-content: center; align-items: center; }
.hero-decoration { width: 300px; height: 400px; animation: float 6s ease-in-out infinite; }

/* 猫咪吉祥物圆圈 */
.hero-cat-wrapper {
  position: relative;
  width: 260px; height: 260px;
  animation: float 6s ease-in-out infinite;
}
.hero-cat-deco {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}
.hero-cat-circle {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 180px; height: 180px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid rgba(196, 184, 159, 0.6);
  box-shadow: 0 4px 24px rgba(74, 93, 62, 0.15), 0 0 0 6px rgba(196, 184, 159, 0.12);
  transition: all 0.4s ease;
}
.hero-cat-circle:hover {
  box-shadow: 0 8px 36px rgba(74, 93, 62, 0.25), 0 0 0 10px rgba(196, 184, 159, 0.18);
  border-color: var(--color-primary);
}
.hero-cat-circle img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.hero-cat-circle:hover img {
  transform: scale(1.08);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}
.hero-scroll-hint {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  color: var(--color-text-muted); font-size: 13px;
  animation: bounce 2s infinite; z-index: 1;
}
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-8px); }
  60% { transform: translateX(-50%) translateY(-4px); }
}

/* ===== Section 通用样式 ===== */
.section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
  display: inline-block; font-size: 12px; font-weight: 700;
  letter-spacing: 3px; color: var(--color-primary);
  background: rgba(74, 93, 62, 0.08);
  padding: 6px 16px; border-radius: var(--radius-full);
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display); font-size: clamp(28px, 4vw, 40px);
  color: var(--color-secondary);
}
.section-title .highlight { color: var(--color-primary); }
.section-subtitle { color: var(--color-text-light); font-size: 17px; margin-top: 12px; max-width: 560px; margin-left: auto; margin-right: auto; }

/* ===== 关于里物 ===== */
.about-section { background: var(--color-white); }
.about-content {
  display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 60px; align-items: start;
}
.about-story { font-size: 17px; line-height: 1.9; color: var(--color-text); margin-bottom: 20px; }
.about-philosophy {
  font-size: 19px; color: var(--color-primary-dark);
  font-weight: 500; margin-bottom: 16px; padding-left: 16px;
  border-left: 3px solid var(--color-primary);
}
.about-note { font-size: 15px; color: var(--color-text-light); line-height: 1.8; }

.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stat-card {
  background: var(--color-bg); border-radius: var(--radius-md);
  padding: 28px 20px; text-align: center;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.stat-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-sm); transform: translateY(-3px); }
.stat-number {
  display: block; font-family: var(--font-display); font-size: 36px;
  font-weight: 800; color: var(--color-primary); line-height: 1.2;
}
.stat-label { font-size: 13px; color: var(--color-text-light); margin-top: 4px; }

/* ===== 核心优势 ===== */
.advantages-section { background: var(--color-bg-alt); }
.advantages-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.advantage-card {
  background: var(--color-white); border-radius: var(--radius-lg);
  padding: 36px 28px; text-align: center;
  border: 1px solid var(--color-border);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.advantage-card:hover {
  transform: translateY(-8px); box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}
.adv-icon { font-size: 40px; margin-bottom: 16px; display: block; }
.advantage-card h3 { font-size: 17px; color: var(--color-secondary); margin-bottom: 10px; }
.advantage-card p { font-size: 14px; color: var(--color-text-light); line-height: 1.7; }

/* ===== 服务项目 ===== */
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.service-card {
  background: var(--color-white); border-radius: var(--radius-lg);
  padding: 36px 28px; text-align: center;
  border: 1px solid var(--color-border);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 4px; background: var(--color-primary);
  transform: scaleX(0); transition: transform 0.35s;
  transform-origin: left;
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.service-icon { font-size: 44px; margin-bottom: 16px; display: block; }
.service-card h3 { font-size: 18px; color: var(--color-secondary); margin-bottom: 10px; }
.service-card p { font-size: 14px; color: var(--color-text-light); line-height: 1.7; margin-bottom: 14px; }
.service-tag {
  display: inline-block; font-size: 12px; color: var(--color-primary);
  background: rgba(74, 93, 62, 0.08);
  padding: 4px 12px; border-radius: var(--radius-full);
}

/* ===== 流程时间线 ===== */
.process-section { background: var(--color-white); }
.process-timeline {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  position: relative;
}
.process-timeline::before {
  content: ''; position: absolute; top: 48px; left: 12.5%; right: 12.5%;
  height: 2px; background: var(--color-border);
}
@media (max-width: 900px) {
  .process-timeline { grid-template-columns: repeat(2, 1fr); }
  .process-timeline::before { display: none; }
}
@media (max-width: 520px) {
  .process-timeline { grid-template-columns: 1fr; }
}

.process-step {
  text-align: center; padding: 0 12px 32px; position: relative;
}
.step-number {
  display: inline-flex; align-items: center; justify-content: center;
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--color-primary); color: var(--color-white);
  font-size: 16px; font-weight: 700;
  position: relative; z-index: 1;
  margin-bottom: 12px;
}
.step-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--color-border); margin: 0 auto 12px;
}
.process-step h4 { font-size: 15px; color: var(--color-secondary); margin-bottom: 6px; }
.process-step p { font-size: 13px; color: var(--color-text-light); line-height: 1.6; }

/* ===== 案例作品 ===== */
.cases-section { background: var(--color-bg-alt); }
.cases-filter {
  display: flex; justify-content: center; gap: 10px;
  margin-bottom: 36px; flex-wrap: wrap;
}
.filter-btn {
  padding: 8px 20px; border-radius: var(--radius-full);
  background: var(--color-white); border: 1px solid var(--color-border);
  color: var(--color-text-light); font-size: 14px; cursor: pointer;
  transition: all var(--transition); font-family: inherit;
}
.filter-btn.active, .filter-btn:hover {
  background: var(--color-primary); color: var(--color-white);
  border-color: var(--color-primary);
}

.cases-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.case-card {
  background: var(--color-white); border-radius: var(--radius-lg);
  overflow: hidden; transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid var(--color-border);
  display: block;
}
.case-card:hover {
  transform: translateY(-8px); box-shadow: var(--shadow-lg);
}
.case-img {
  aspect-ratio: 4/3; overflow: hidden; background: var(--color-bg-alt);
  position: relative;
}
.case-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s;
}
.case-card:hover .case-img img { transform: scale(1.06); }
.case-placeholder {
  width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
  color: var(--color-text-muted); font-size: 15px;
}
.case-info { padding: 20px; }
.case-style-tag {
  display: inline-block; font-size: 11px; color: var(--color-primary);
  background: rgba(74, 93, 62, 0.08); padding: 3px 10px;
  border-radius: var(--radius-full); margin-bottom: 8px;
}
.case-title { font-size: 17px; color: var(--color-secondary); margin-bottom: 6px; }
.case-meta { font-size: 13px; color: var(--color-text-muted); margin-bottom: 4px; }
.case-community { font-size: 12px; color: var(--color-text-light); }

.cases-empty {
  text-align: center; padding: 80px 20px;
}
.empty-illustration { max-width: 200px; margin: 0 auto 24px; }
.empty-illustration svg { width: 100%; }
.cases-empty h3 { font-family: var(--font-display); font-size: 24px; color: var(--color-secondary); margin-bottom: 12px; }
.cases-empty p { color: var(--color-text-light); margin-bottom: 24px; line-height: 1.8; }
.cases-more { text-align: center; margin-top: 40px; }

/* ===== 团队介绍 ===== */
.team-section { background: var(--color-white); }
.team-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px;
  max-width: 800px; margin: 0 auto;
}
.team-card {
  text-align: center; padding: 40px 28px;
  border-radius: var(--radius-lg); background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.team-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--color-accent); }
.team-avatar {
  width: 110px; height: 110px; border-radius: 50%;
  margin: 0 auto 20px; overflow: hidden;
  border: 3px solid var(--color-accent);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex; align-items: center; justify-content: center;
}
.team-avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-placeholder {
  font-family: var(--font-display); font-size: 40px; font-weight: 700;
  color: var(--color-white);
}
.team-name { font-size: 22px; color: var(--color-secondary); margin-bottom: 4px; }
.team-role {
  display: inline-block; font-size: 13px; color: var(--color-primary);
  background: rgba(74, 93, 62, 0.08); padding: 3px 14px;
  border-radius: var(--radius-full); margin-bottom: 4px;
}
.team-exp { font-size: 13px; color: var(--color-text-muted); display: block; margin-bottom: 10px; }
.team-specialties { font-size: 14px; color: var(--color-text); margin-bottom: 8px; }
.team-bio { font-size: 13px; color: var(--color-text-light); line-height: 1.7; }

/* ===== 客户评价 ===== */
.reviews-section { background: var(--color-bg-alt); }
.reviews-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.review-card {
  background: var(--color-white); border-radius: var(--radius-lg);
  padding: 32px 28px; border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.review-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.review-stars { margin-bottom: 14px; }
.star { color: var(--color-border); font-size: 18px; margin-right: 2px; }
.star.filled { color: #F5A623; }
.review-content {
  font-size: 15px; line-height: 1.8; color: var(--color-text);
  margin-bottom: 18px; font-style: italic;
}
.review-author {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.review-author strong { font-size: 14px; color: var(--color-secondary); }
.review-project { font-size: 12px; color: var(--color-text-muted); background: var(--color-bg); padding: 2px 8px; border-radius: 4px; }

/* ===== 联系我们 ===== */
.contact-section { background: var(--color-white); }
.contact-grid {
  display: grid; grid-template-columns: 1.3fr 0.7fr; gap: 48px;
  align-items: start;
}
.contact-form-wrapper {
  background: var(--color-bg); border-radius: var(--radius-lg);
  padding: 40px; border: 1px solid var(--color-border);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 14px; font-weight: 550;
  color: var(--color-secondary); margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 12px 16px; border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); font-size: 15px; font-family: var(--font-body);
  color: var(--color-text); background: var(--color-white);
  transition: border-color var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(74, 93, 62, 0.1);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-group select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23666' stroke-width='1.5' fill='none'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }
.form-note { font-size: 12px; color: var(--color-text-muted); text-align: center; margin-top: 12px; }

.contact-cards { display: flex; flex-direction: column; gap: 16px; }
.contact-card {
  background: var(--color-bg); border-radius: var(--radius-md);
  padding: 24px; border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.contact-card:hover { border-color: var(--color-primary); }
.contact-card-icon { font-size: 28px; margin-bottom: 8px; display: block; }
.contact-card h4 { font-size: 15px; color: var(--color-secondary); margin-bottom: 4px; }
.contact-card p { font-size: 14px; color: var(--color-text); }
.contact-card small { font-size: 12px; color: var(--color-text-muted); display: block; margin-top: 4px; }
.contact-card a { color: var(--color-primary); font-weight: 500; }

/* ===== 底部 Footer ===== */
.footer {
  background: var(--color-secondary); color: rgba(255,255,255,0.7);
  padding: 64px 0 0; margin-top: 0;
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-logo {
  font-family: var(--font-display); font-size: 22px; font-weight: 700;
  color: var(--color-white); letter-spacing: 2px; margin-bottom: 10px;
}
.footer-slogan { font-size: 14px; color: var(--color-accent); margin-bottom: 10px; }
.footer-desc { font-size: 13px; line-height: 1.7; opacity: 0.7; }
.footer-links h4,
.footer-contact h4 {
  color: var(--color-white); font-size: 15px; margin-bottom: 18px;
}
.footer-links a {
  display: block; font-size: 14px; color: rgba(255,255,255,0.6);
  margin-bottom: 10px; transition: color var(--transition);
}
.footer-links a:hover { color: var(--color-accent); }
.footer-contact p { font-size: 14px; margin-bottom: 10px; }
.footer-contact a { color: var(--color-accent); }
.footer-bottom {
  text-align: center; padding: 24px 0;
  font-size: 13px; opacity: 0.5;
}

/* ===== 面包屑 ===== */
.breadcrumb { font-size: 13px; color: var(--color-text-muted); padding: 20px 0; }
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary); }

/* ===== 案例详情页 ===== */
.case-detail-section { padding: 100px 0 40px; background: var(--color-white); min-height: 80vh; }
.cd-header { text-align: center; padding: 20px 0 40px; }
.cd-style-tag { display: inline-block; font-size: 13px; color: var(--color-primary); background: rgba(74,93,62,0.08); padding: 4px 14px; border-radius: var(--radius-full); margin-bottom: 16px; }
.cd-header h1 { font-family: var(--font-display); font-size: 32px; color: var(--color-secondary); margin-bottom: 12px; }
.cd-meta { display: flex; justify-content: center; gap: 24px; font-size: 14px; color: var(--color-text-light); }
.cd-gallery { display: grid; grid-template-columns: 1fr; gap: 16px; margin-bottom: 48px; }
.cd-img { border-radius: var(--radius-md); overflow: hidden; }
.cd-img img { width: 100%; object-fit: cover; }
.cd-img.cd-placeholder {
  aspect-ratio: 16/10; display: flex; align-items: center; justify-content: center;
  background: var(--color-bg-alt); color: var(--color-text-muted); font-size: 18px;
  border: 2px dashed var(--color-border); border-radius: var(--radius-md);
}
.cd-description { max-width: 800px; margin: 0 auto 48px; }
.cd-description h2 { font-family: var(--font-display); font-size: 24px; color: var(--color-secondary); margin-bottom: 16px; }
.cd-description p { font-size: 16px; line-height: 1.9; color: var(--color-text); }
.cd-cta { text-align: center; padding: 48px; background: var(--color-bg-alt); border-radius: var(--radius-lg); }
.cd-cta h3 { font-family: var(--font-display); font-size: 22px; margin-bottom: 20px; color: var(--color-secondary); }

/* ===== 文章详情页 ===== */
.article-detail-section { padding: 100px 0 40px; background: var(--color-white); min-height: 80vh; }
.ad-content { max-width: 800px; margin: 0 auto; }
.ad-cover { border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 32px; }
.ad-cover img { width: 100%; }
.ad-header { text-align: center; margin-bottom: 40px; }
.ad-category { display: inline-block; font-size: 12px; color: var(--color-primary); background: rgba(74,93,62,0.08); padding: 4px 12px; border-radius: var(--radius-full); margin-bottom: 12px; }
.ad-header h1 { font-family: var(--font-display); font-size: 30px; color: var(--color-secondary); margin-bottom: 12px; }
.ad-meta { display: flex; justify-content: center; gap: 20px; font-size: 13px; color: var(--color-text-muted); }
.ad-body { font-size: 16px; line-height: 2; color: var(--color-text); }
.ad-body p { margin-bottom: 20px; }
.ad-body h2, .ad-body h3 { font-family: var(--font-display); color: var(--color-secondary); margin: 32px 0 16px; }
.ad-cta { text-align: center; padding: 40px; margin-top: 48px; background: var(--color-bg-alt); border-radius: var(--radius-lg); }
.ad-cta p { font-size: 16px; color: var(--color-text); margin-bottom: 16px; }

/* ===== 后台管理系统样式 ===== */

/* 登录页 */
.admin-login-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #FAF8F5 0%, #E8E4DC 100%);
}
.login-box {
  background: var(--color-white); border-radius: var(--radius-lg);
  padding: 48px 40px; width: 100%; max-width: 420px;
  box-shadow: var(--shadow-lg);
}
.login-logo {
  text-align: center; margin-bottom: 32px;
}
.login-logo h1 {
  font-family: var(--font-display); font-size: 26px; color: var(--color-secondary);
}
.login-logo p { font-size: 13px; color: var(--color-text-muted); margin-top: 4px; }
.login-error {
  background: #FEE2E2; color: #991B1B; padding: 10px 16px;
  border-radius: var(--radius-sm); font-size: 14px; margin-bottom: 20px;
}

/* 后台布局 */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: 240px; background: var(--color-secondary);
  color: var(--color-white); padding: 24px 0;
  flex-shrink: 0; position: fixed; top: 0; left: 0; bottom: 0;
  z-index: 100;
}
.admin-sidebar-brand {
  padding: 0 24px 24px; border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 20px;
}
.admin-sidebar-brand h2 {
  font-family: var(--font-display); font-size: 18px; color: var(--color-white);
}
.admin-sidebar-brand span { font-size: 11px; color: var(--color-accent); }
.admin-nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 24px; color: rgba(255,255,255,0.65);
  font-size: 14px; transition: all var(--transition);
}
.admin-nav a:hover, .admin-nav a.active {
  background: rgba(255,255,255,0.08); color: var(--color-white);
}
.admin-main { margin-left: 240px; flex: 1; background: var(--color-bg); min-height: 100vh; }
.admin-topbar {
  background: var(--color-white); padding: 16px 32px;
  display: flex; justify-content: space-between; align-items: center;
  border-bottom: 1px solid var(--color-border);
  position: sticky; top: 0; z-index: 50;
}
.admin-topbar h3 { font-size: 17px; color: var(--color-secondary); }
.admin-user-menu { display: flex; align-items: center; gap: 12px; font-size: 14px; }
.admin-user-name { color: var(--color-text-light); }
.admin-logout-btn {
  font-size: 13px; color: #DC2626; cursor: pointer; background: none;
  border: none; font-family: inherit;
}
.admin-logout-btn:hover { text-decoration: underline; }

/* 后台内容区 */
.admin-content { padding: 32px; }

/* 统计卡片 */
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  margin-bottom: 32px;
}
.stat-dashboard-card {
  background: var(--color-white); border-radius: var(--radius-md);
  padding: 24px; border: 1px solid var(--color-border);
}
.stat-dashboard-number {
  font-size: 32px; font-weight: 800; color: var(--color-primary);
  display: block; line-height: 1.2;
}
.stat-dashboard-label { font-size: 13px; color: var(--color-text-muted); margin-top: 4px; }

/* 数据表格 */
.data-table-wrapper {
  background: var(--color-white); border-radius: var(--radius-md);
  border: 1px solid var(--color-border); overflow: hidden;
}
.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
  background: var(--color-bg-alt); padding: 14px 16px;
  text-align: left; font-size: 13px; font-weight: 600;
  color: var(--color-text-light); text-transform: uppercase; letter-spacing: 0.5px;
}
.data-table td {
  padding: 14px 16px; font-size: 14px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(74,93,62,0.03); }

/* 状态标签 */
.status-badge {
  display: inline-block; padding: 3px 10px; border-radius: var(--radius-full);
  font-size: 12px; font-weight: 500;
}
.status-published { background: #DCFCE7; color: #166534; }
.status-draft { background: #F1F5F9; color: #64748B; }
.status-visible { background: #DCFCE7; color: #166534; }
.status-hidden { background: #FEE2E2; color: #991B1B; }

/* 操作按钮组 */
.action-btns { display: flex; gap: 8px; }
.btn-sm {
  padding: 6px 14px; font-size: 13px; border-radius: var(--radius-sm);
}
.btn-edit { background: var(--color-bg-alt); color: var(--color-text); border: 1px solid var(--color-border); }
.btn-edit:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-danger { background: #FEE2E2; color: #991B1B; border: 1px solid #FECACA; }
.btn-danger:hover { background: #FCA5A5; color: #7F1D1D; }
.btn-success-sm { background: #DCFCE7; color: #166534; border: 1px solid #BBF7D0; }
.btn-warning-sm { background: #FEF3C7; color: #92400E; border: 1px solid #FDE68A; }

/* 表单页面 */
.admin-form-card {
  background: var(--color-white); border-radius: var(--radius-lg);
  border: 1px solid var(--color-border); padding: 36px;
  max-width: 800px;
}
.admin-form-card h2 { font-size: 20px; color: var(--color-secondary); margin-bottom: 24px; }
.form-actions { display: flex; gap: 12px; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--color-border); }

/* 设置页面 */
.settings-form { max-width: 700px; }
.settings-saved-toast {
  background: #DCFCE7; color: #166534; padding: 12px 20px;
  border-radius: var(--radius-sm); margin-bottom: 24px;
  font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-visual { order: -1; }
  .hero-decoration { width: 220px; height: 280px; }
  .hero-cat-wrapper { width: 220px; height: 220px; }
  .hero-cat-circle { width: 150px; height: 150px; }
  .hero-actions { justify-content: center; }
  
  .about-content { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(4, 1fr); }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .admin-sidebar { width: 200px; }
  .admin-main { margin-left: 200px; }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
    background: var(--color-white); flex-direction: column;
    padding: 90px 32px 32px; gap: 0; box-shadow: var(--shadow-lg);
    transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
  }
  .nav-menu.open { right: 0; }
  .nav-link { font-size: 18px; padding: 14px 0; border-bottom: 1px solid var(--color-border); }
  .nav-toggle { display: flex; }
  
  .section { padding: 70px 0; }
  .hero { min-height: auto; padding: 100px 0 60px; }
  .hero-title { font-size: 32px; }
  .hero-cat-wrapper { width: 180px; height: 180px; }
  .hero-cat-circle { width: 120px; height: 120px; }
  
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .advantages-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; max-width: 360px; }
  .reviews-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  
  /* 后台响应式 */
  .admin-sidebar {
    transform: translateX(-100%); transition: transform 0.3s;
    width: 240px;
  }
  .admin-sidebar.open { transform: translateX(0); }
  .admin-main { margin-left: 0; }
  .admin-content { padding: 20px 16px; }
  .data-table { font-size: 13px; }
  .data-table th, .data-table td { padding: 10px 12px; }
  
  .contact-form-wrapper { padding: 24px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 28px; }
  .btn-lg { padding: 14px 28px; font-size: 15px; }
  .stat-number { font-size: 28px; }
  .cd-meta { flex-direction: column; gap: 8px; align-items: center; }
}

/* 动画效果（减少动画偏好） */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 工具类 */
.text-center { text-align: center; }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }