/**
 * 焕新居 — 老房翻新专家
 * 设计风格：清新活力 / 白+活力蓝+暖橙点缀 / 大留白 / 大圆角
 * 基于：CSS Variables + Flexbox/Grid + 原生CSS
 */

/* Google Fonts - 现代中文字体 */


/* ============================================================
   CSS 变量体系
   ============================================================ */
:root {
  /* 主色 */
  --primary: #2563EB;
  --primary-dark: #1D4ED8;
  --primary-light: #DBEAFE;
  --primary-bg: #EFF6FF;

  /* 点缀色 */
  --accent: #F97316;
  --accent-light: #FFF7ED;
  --accent-dark: #EA580C;

  /* 中性色 */
  --white: #FFFFFF;
  --bg-page: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-gray: #F1F5F9;
  --bg-dark: #1E293B;

  /* 文字 */
  --text-primary: #1E293B;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --text-white: #FFFFFF;

  /* 边框 */
  --border: #E2E8F0;
  --border-light: #F1F5F9;

  /* 阴影 */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);
  --shadow-blue: 0 4px 20px rgba(37,99,235,0.15);

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 50%;

  /* 间距 */
  --section-py: 80px;
  --container: 1200px;
  --header-h: 72px;

  /* 过渡 */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --fast: 150ms;
  --normal: 300ms;
  --slow: 500ms;

  /* 字体 — Noto Sans SC 现代中文字体 */
  --font-heading: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ============================================================
   全局重置
   ============================================================ */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body {
  background: var(--bg-page);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: rgba(37,99,235,0.15); color: var(--primary); }
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background: var(--bg-gray); }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius:3px; }
a { color:inherit; text-decoration:none; transition: color var(--fast) var(--ease); }
img { max-width:100%; height:auto; display:block; }
ul, ol { list-style:none; }
input, textarea, select, button { font-family:inherit; font-size:inherit; }
input::placeholder, textarea::placeholder { color: var(--text-muted); }

/* ============================================================
   排版
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.3;
}
.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-bg);
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.5rem, 3.5vw, 2.4rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
}
.section-header { text-align:center; margin-bottom:48px; }

/* ============================================================
   布局
   ============================================================ */
.container { width:100%; max-width:var(--container); margin:0 auto; padding:0 24px; }
.section { padding: var(--section-py) 0; }

/* ============================================================
   Header 头部 — 白色背景 + 深色文字
   ============================================================ */
.header {
  position: fixed; top:0; left:0; right:0; z-index:100;
  height: var(--header-h);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  transition: box-shadow var(--normal) var(--ease);
}
.header.scrolled { box-shadow: var(--shadow-md); }
.header__inner {
  display:flex; align-items:center; height:100%;
  max-width: var(--container); margin:0 auto; padding:0 24px;
}
/* Logo */
.header__logo {
  display:flex; align-items:center; gap:10px; flex-shrink:0; margin-right:auto;
}
.header__logo-icon {
  width:42px; height:42px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius-sm);
  display:flex; align-items:center; justify-content:center;
  font-size:1.25rem; color:#fff; font-weight:700;
}
.header__logo-name {
  font-family: var(--font-heading);
  font-size:1.15rem; font-weight:700; color:var(--text-primary);
}
.header__logo-sub {
  font-size:0.65rem; color:var(--accent); letter-spacing:0.12em; display:block;
}
/* 导航 */
.header__nav { display:flex; align-items:center; gap:2px; }
.header__nav-link {
  padding:8px 16px; font-size:0.9rem; color:var(--text-secondary);
  border-radius: var(--radius-sm); font-weight:500;
  transition: all var(--fast) var(--ease); white-space:nowrap;
}
.header__nav-link:hover, .header__nav-link.active {
  color: var(--primary); background: var(--primary-bg);
}
/* 导航下拉 */
.header__nav-item { position:relative; }
.header__nav-item:hover .header__dropdown {
  opacity:1; visibility:visible; transform:translateY(0);
}
.header__dropdown {
  position:absolute; top:100%; left:0; min-width:160px;
  padding:8px 0; background:var(--white);
  border:1px solid var(--border); border-radius:var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity:0; visibility:hidden; transform:translateY(8px);
  transition: all var(--normal) var(--ease);
  z-index:60;
}
.header__dropdown a {
  display:block; padding:10px 20px; font-size:0.88rem;
  color:var(--text-secondary); transition: all var(--fast);
}
.header__dropdown a:hover { color:var(--primary); background:var(--primary-bg); }
/* CTA 按钮 */
.header__cta {
  display:inline-flex; align-items:center; gap:6px;
  padding:10px 22px; background:var(--primary); color:#fff;
  font-size:0.88rem; font-weight:600; border-radius:var(--radius-sm);
  margin-left:12px; transition: all var(--fast) var(--ease);
}
.header__cta:hover { background:var(--primary-dark); color:#fff; box-shadow:var(--shadow-blue); transform:translateY(-1px); }

/* ============================================================
   汉堡菜单
   ============================================================ */
.hamburger {
  display:none; width:40px; height:40px; flex-direction:column;
  align-items:center; justify-content:center; gap:5px;
  background:none; border:none; cursor:pointer; z-index:110; margin-left:8px;
}
.hamburger span {
  display:block; width:22px; height:2px; background:var(--text-primary);
  border-radius:1px; transition: all var(--normal) var(--ease);
}
.hamburger.active span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
.hamburger.active span:nth-child(2) { opacity:0; }
.hamburger.active span:nth-child(3) { transform:rotate(-45deg) translate(5px,-5px); }

/* 移动端菜单 */
.mobile-nav {
  position:fixed; top:0; left:0; bottom:0; width:80%; max-width:340px;
  background:var(--white); z-index:120;
  transform:translateX(-100%); transition: transform var(--normal) var(--ease);
  overflow-y:auto; box-shadow: var(--shadow-lg);
}
.mobile-nav.open { transform:translateX(0); }
.mobile-nav__inner { padding:24px; padding-top:80px; }
.mobile-nav__link {
  display:block; padding:14px 16px; font-size:1rem; color:var(--text-secondary);
  border-radius:var(--radius-sm); transition: all var(--fast);
}
.mobile-nav__link:hover { color:var(--primary); background:var(--primary-bg); }
.mobile-nav__sub { padding-left:16px; display:none; }
.mobile-nav__sub.open { display:block; }
.mobile-nav__sub a {
  display:block; padding:10px 16px; font-size:0.9rem;
  color:var(--text-muted); border-radius:var(--radius-sm);
}
.mobile-nav__overlay {
  position:fixed; inset:0; background:rgba(0,0,0,0.5); z-index:115;
  opacity:0; pointer-events:none; transition:opacity var(--normal);
}
.mobile-nav__overlay.show { opacity:1; pointer-events:auto; }

/* ============================================================
   按钮系统
   ============================================================ */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding:12px 28px; font-size:0.92rem; font-weight:600;
  border-radius:var(--radius-sm); border:none; cursor:pointer;
  transition: all var(--normal) var(--ease); white-space:nowrap;
}
.btn--primary {
  background: var(--primary); color: #fff;
}
.btn--primary:hover { background:var(--primary-dark); box-shadow:var(--shadow-blue); transform:translateY(-2px); color:#fff; }
.btn--accent {
  background: var(--accent); color: #fff;
}
.btn--accent:hover { background:var(--accent-dark); box-shadow:0 4px 16px rgba(249,115,22,0.25); transform:translateY(-2px); color:#fff; }
.btn--outline {
  background:transparent; color:var(--primary); border:2px solid var(--primary);
}
.btn--outline:hover { background:var(--primary); color:#fff; transform:translateY(-2px); }
.btn--white {
  background:var(--white); color:var(--primary); box-shadow:var(--shadow-sm);
}
.btn--white:hover { box-shadow:var(--shadow-md); transform:translateY(-2px); }
.btn--lg { padding:15px 36px; font-size:1rem; border-radius:var(--radius-md); }

/* ============================================================
   内页 Banner
   ============================================================ */
.inner-banner {
  position:relative; height:300px; overflow:hidden;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  margin-top: var(--header-h);
}
.inner-banner__bg {
  position:absolute; inset:0; background-size:cover; background-position:center; opacity:0.25;
}
.inner-banner__overlay {
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(30,41,59,0.7), rgba(30,41,59,0.85));
}
.inner-banner__content {
  position:relative; height:100%; display:flex; flex-direction:column;
  justify-content:center; max-width:var(--container); margin:0 auto; padding:0 24px;
}
.inner-banner__title { font-size:clamp(1.5rem, 3.5vw, 2.5rem); color:#fff; margin-bottom:8px; }
.inner-banner__subtitle { font-size:1.05rem; color:rgba(255,255,255,0.75); }
/* 面包屑 */
.breadcrumb-bar { background:var(--white); border-bottom:1px solid var(--border); }
.breadcrumb {
  display:flex; align-items:center; gap:8px; max-width:var(--container);
  margin:0 auto; padding:12px 24px; font-size:0.85rem; color:var(--text-muted);
}
.breadcrumb a { color:var(--text-secondary); }
.breadcrumb a:hover { color:var(--primary); }
.breadcrumb i { font-size:0.65rem; color:var(--text-muted); }

/* ============================================================
   卡片系统 — 白色+蓝色边框/色块
   ============================================================ */
.card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); overflow:hidden;
  transition: all var(--normal) var(--ease);
}
.card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
.card__image {
  position:relative; overflow:hidden; aspect-ratio:16/10;
}
.card__image img {
  width:100%; height:100%; object-fit:cover;
  transition: transform var(--slow) var(--ease);
}
.card:hover .card__image img { transform:scale(1.06); }
.card__badge {
  position:absolute; top:12px; left:12px;
  padding:4px 12px; font-size:0.75rem; font-weight:700;
  color:#fff; background:var(--accent); border-radius:100px;
}
.card__body { padding:20px; }
.card__tag {
  display:inline-block; padding:3px 10px; font-size:0.72rem; font-weight:700;
  color:var(--primary); background:var(--primary-bg); border-radius:100px; margin-bottom:8px;
}
.card__title {
  font-family:var(--font-heading); font-size:1.08rem; font-weight:700;
  color:var(--text-primary); margin-bottom:6px;
  display:-webkit-box; -webkit-line-clamp:1; -webkit-box-orient:vertical; overflow:hidden;
}
.card__desc {
  font-size:0.9rem; color:var(--text-secondary);
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;
}
.card__meta {
  display:flex; gap:16px; margin-top:12px; padding-top:12px;
  border-top:1px solid var(--border-light); font-size:0.8rem; color:var(--text-muted);
}
.card__meta i { color:var(--primary); margin-right:4px; }

/* ============================================================
   首页 — Hero Banner
   ============================================================ */
.hero {
  position:relative; height:100vh; min-height:600px; overflow:hidden;
  margin-top:0; background:var(--bg-dark);
}
.hero .swiper { position:absolute; inset:0; z-index:0; }
.hero__slide {
  position:absolute; inset:0; background-size:cover; background-position:center;
}
.hero__overlay {
  position:absolute; inset:0; z-index:2;
  background: linear-gradient(90deg, rgba(30,41,59,0.85) 0%, rgba(30,41,59,0.4) 50%, rgba(30,41,59,0.2) 100%);
}
.hero__content {
  position:relative; z-index:3; height:100%; display:flex; flex-direction:column;
  justify-content:center; max-width:var(--container); margin:0 auto; padding:0 24px;
}
.hero__pretitle {
  display:inline-block; font-size:0.85rem; font-weight:700; letter-spacing:0.2em;
  text-transform:uppercase; color:var(--accent); margin-bottom:16px;
  animation: fadeInUp 0.8s var(--ease) both;
}
.hero__title {
  font-size:clamp(2rem, 5vw, 3.5rem); font-weight:800; color:#fff;
  line-height:1.15; margin-bottom:16px; max-width:600px;
  animation: fadeInUp 0.8s var(--ease) 0.15s both;
}
.hero__title span { color: var(--accent); }
.hero__subtitle {
  font-size:1.15rem; color:rgba(255,255,255,0.75); margin-bottom:32px; max-width:500px;
  animation: fadeInUp 0.8s var(--ease) 0.3s both;
}
.hero__actions { display:flex; gap:14px; flex-wrap:wrap; animation: fadeInUp 0.8s var(--ease) 0.45s both; }
.hero__stats {
  display:flex; gap:40px; margin-top:48px;
  animation: fadeInUp 0.8s var(--ease) 0.6s both;
}
.hero__stat-item { text-align:center; }
.hero__stat-num { font-size:2rem; font-weight:800; color:#fff; line-height:1; }
.hero__stat-label { font-size:0.8rem; color:rgba(255,255,255,0.6); margin-top:4px; }

/* Hero 分页器 */
.hero-pagination { display:flex; gap:8px; position:absolute; bottom:32px; left:50%; transform:translateX(-50%); z-index:5; }
.hero-pagination .swiper-pagination-bullet {
  width:32px; height:3px; border-radius:2px; background:rgba(255,255,255,0.4); opacity:1;
}
.hero-pagination .swiper-pagination-bullet-active { width:48px; background:var(--accent); }

/* ============================================================
   首页 — 数据条
   ============================================================ */
.stats-bar {
  background:var(--white); border-bottom:1px solid var(--border);
  padding:32px 0;
}
.stats-bar__grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:24px;
}
.stat-counter { text-align:center; }
.stat-counter__num {
  font-family:var(--font-heading); font-size:clamp(1.8rem, 3vw, 2.8rem);
  font-weight:800; color:var(--primary); line-height:1;
}
.stat-counter__num span { color:var(--accent); }
.stat-counter__label { font-size:0.88rem; color:var(--text-secondary); margin-top:6px; }

/* ============================================================
   首页 — 案例展示
   ============================================================ */
.cases-grid {
  display:grid; grid-template-columns:repeat(3,1fr); gap:24px;
}
.case-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); overflow:hidden;
  transition: all var(--normal) var(--ease);
}
.case-card:hover { border-color:var(--primary); box-shadow:var(--shadow-lg); transform:translateY(-3px); }
.case-card__compare {
  position:relative; overflow:hidden;
}
.case-card__compare img { width:100%; aspect-ratio:4/3; object-fit:cover; }
.case-card__compare-label {
  position:absolute; top:8px; padding:3px 10px; font-size:0.7rem; font-weight:700;
  color:#fff; border-radius:4px; z-index:2;
}
.case-card__compare-label--before { left:8px; background:rgba(100,116,139,0.85); }
.case-card__compare-label--after { right:8px; background:rgba(37,99,235,0.85); }
.case-card__info { padding:18px; }
.case-card__title { font-size:1rem; font-weight:700; color:var(--text-primary); margin-bottom:4px; }
.case-card__meta { font-size:0.8rem; color:var(--text-muted); }

/* ============================================================
   首页 — 服务分类卡片
   ============================================================ */
.services-grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:20px;
}
.service-card {
  text-align:center; padding:36px 20px;
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); transition: all var(--normal) var(--ease);
}
.service-card:hover {
  border-color:var(--primary); box-shadow:var(--shadow-md); transform:translateY(-3px);
}
.service-card__icon {
  width:68px; height:68px; margin:0 auto 16px; border-radius:var(--radius-md);
  display:flex; align-items:center; justify-content:center;
  font-size:1.6rem; color:var(--primary); background:var(--primary-bg);
  transition: all var(--normal);
}
.service-card:hover .service-card__icon { background:var(--primary); color:#fff; }
.service-card__title { font-size:1.05rem; font-weight:700; color:var(--text-primary); margin-bottom:6px; }
.service-card__desc { font-size:0.85rem; color:var(--text-secondary); line-height:1.5; }

/* ============================================================
   首页 — 前后对比区
   ============================================================ */
.compare-section { background:var(--bg-gray); }
.compare-gallery {
  display:grid; grid-template-columns:repeat(2,1fr); gap:24px;
}
.compare-item {
  position:relative; border-radius:var(--radius-lg); overflow:hidden;
  box-shadow:var(--shadow-md); cursor:pointer;
}
.compare-item img { width:100%; aspect-ratio:16/10; object-fit:cover; }
.compare-item__label {
  position:absolute; bottom:0; left:0; right:0;
  padding:20px; background:linear-gradient(transparent, rgba(0,0,0,0.7));
  color:#fff; font-weight:700; font-size:1.05rem;
}
.compare-item__badge {
  position:absolute; top:12px; right:12px;
  padding:5px 14px; font-size:0.75rem; font-weight:700; color:#fff;
  border-radius:100px; z-index:2;
}
.compare-item__badge--before { background:rgba(100,116,139,0.9); }
.compare-item__badge--after { background:var(--primary); }

/* ============================================================
   首页 — 流程
   ============================================================ */
.process-grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:0;
}
.process-step {
  text-align:center; padding:32px 20px; position:relative;
}
.process-step::after {
  content:''; position:absolute; top:40px; right:-12px;
  width:24px; height:2px; background:var(--border);
}
.process-step:last-child::after { display:none; }
.process-step__num {
  width:56px; height:56px; margin:0 auto 16px;
  border-radius:var(--radius-full); display:flex; align-items:center; justify-content:center;
  font-size:1.3rem; font-weight:800; color:#fff;
  background:linear-gradient(135deg, var(--primary), var(--primary-dark));
}
.process-step:nth-child(2) .process-step__num { background:linear-gradient(135deg, #3B82F6, var(--primary)); }
.process-step:nth-child(3) .process-step__num { background:linear-gradient(135deg, var(--accent), #FB923C); }
.process-step:nth-child(4) .process-step__num { background:linear-gradient(135deg, #22C55E, #16A34A); }
.process-step__title { font-size:1.05rem; font-weight:700; color:var(--text-primary); margin-bottom:4px; }
.process-step__time { font-size:0.82rem; color:var(--accent); font-weight:600; }
.process-step__desc { font-size:0.85rem; color:var(--text-secondary); margin-top:4px; }

/* ============================================================
   首页 — 评价卡片
   ============================================================ */
.reviews-grid {
  display:grid; grid-template-columns:repeat(3,1fr); gap:24px;
}
.review-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); padding:28px;
  transition: all var(--normal) var(--ease);
}
.review-card:hover { border-color:var(--primary); box-shadow:var(--shadow-md); }
.review-card__stars { color:var(--accent); font-size:0.9rem; margin-bottom:12px; }
.review-card__text { font-size:0.92rem; color:var(--text-secondary); line-height:1.7; margin-bottom:16px; }
.review-card__author { display:flex; align-items:center; gap:12px; padding-top:16px; border-top:1px solid var(--border-light); }
.review-card__avatar {
  width:42px; height:42px; border-radius:var(--radius-full);
  background:var(--primary-bg); display:flex; align-items:center; justify-content:center;
  color:var(--primary); font-weight:700; font-size:0.9rem; flex-shrink:0;
}
.review-card__name { font-size:0.9rem; font-weight:600; color:var(--text-primary); }
.review-card__addr { font-size:0.78rem; color:var(--text-muted); }
.review-card__before-after { display:flex; gap:8px; margin-bottom:14px; }
.review-card__before-after img {
  width:80px; height:60px; border-radius:var(--radius-sm); object-fit:cover;
}

/* ============================================================
   首页 — 新闻/知识
   ============================================================ */
.news-list { display:flex; flex-direction:column; gap:16px; }
.news-list-item {
  display:flex; gap:20px; padding:20px; background:var(--bg-card);
  border:1px solid var(--border); border-radius:var(--radius-md);
  transition: all var(--normal) var(--ease);
}
.news-list-item:hover { border-color:var(--primary); box-shadow:var(--shadow-sm); transform:translateX(4px); }
.news-list-item__thumb {
  width:200px; height:140px; border-radius:var(--radius-sm); overflow:hidden; flex-shrink:0;
}
.news-list-item__thumb img { width:100%; height:100%; object-fit:cover; }
.news-list-item__info { flex:1; display:flex; flex-direction:column; justify-content:center; }
.news-list-item__title { font-size:1.1rem; font-weight:700; color:var(--text-primary); margin-bottom:6px; }
.news-list-item__desc { font-size:0.88rem; color:var(--text-secondary); line-height:1.6; }
.news-list-item__date { font-size:0.8rem; color:var(--text-muted); margin-top:8px; }
.news-list-item__date i { color:var(--primary); margin-right:4px; }

/* ============================================================
   首页 CTA
   ============================================================ */
.cta-section {
  background:linear-gradient(135deg, var(--primary), var(--primary-dark));
  text-align:center; padding:72px 0; position:relative; overflow:hidden;
}
.cta-section::before {
  content:''; position:absolute; inset:0;
  background:radial-gradient(circle at 30% 50%, rgba(249,115,22,0.15) 0%, transparent 50%),
             radial-gradient(circle at 70% 30%, rgba(255,255,255,0.05) 0%, transparent 50%);
}
.cta-section__title { font-size:clamp(1.5rem, 3vw, 2.25rem); color:#fff; margin-bottom:12px; position:relative; }
.cta-section__desc { color:rgba(255,255,255,0.8); margin-bottom:32px; font-size:1.05rem; position:relative; }
.cta-section__actions { display:flex; justify-content:center; gap:16px; flex-wrap:wrap; position:relative; }

/* ============================================================
   列表页筛选栏
   ============================================================ */
.filter-bar {
  display:flex; align-items:center; gap:8px; overflow-x:auto;
  padding-bottom:8px; margin-bottom:36px;
  -ms-overflow-style:none; scrollbar-width:none;
}
.filter-bar::-webkit-scrollbar { display:none; }
.filter-bar a {
  display:inline-flex; padding:8px 20px; font-size:0.88rem; font-weight:600;
  color:var(--text-secondary); border:2px solid var(--border);
  border-radius:100px; white-space:nowrap; flex-shrink:0;
  transition: all var(--fast);
}
.filter-bar a:hover, .filter-bar a.active {
  color:var(--primary); border-color:var(--primary); background:var(--primary-bg);
}

/* ============================================================
   列表页 — 网格
   ============================================================ */
.list-grid {
  display:grid; grid-template-columns:repeat(3,1fr); gap:24px;
}
.list-header { text-align:center; margin-bottom:40px; }
.list-header h1 { font-size:clamp(1.5rem, 3vw, 2.25rem); margin-bottom:8px; }

/* ============================================================
   详情页
   ============================================================ */
.detail { max-width:900px; margin:0 auto; }
.detail__header { margin-bottom:32px; padding-bottom:24px; border-bottom:1px solid var(--border); }
.detail__title { font-size:clamp(1.5rem, 3vw, 2rem); margin-bottom:12px; }
.detail__meta-row {
  display:flex; flex-wrap:wrap; gap:20px; font-size:0.85rem; color:var(--text-muted);
}
.detail__meta-row i { color:var(--primary); margin-right:4px; }
.detail__params {
  display:grid; grid-template-columns:repeat(auto-fit, minmax(140px,1fr)); gap:12px; margin-bottom:32px;
}
.detail__param {
  padding:16px; background:var(--primary-bg); border-radius:var(--radius-sm); text-align:center;
}
.detail__param-label { font-size:0.75rem; color:var(--text-muted); margin-bottom:4px; }
.detail__param-value { font-size:1rem; font-weight:700; color:var(--primary); }
.detail__body {
  color:var(--text-secondary); line-height:2; font-size:0.95rem;
}
.detail__body img { border-radius:var(--radius-md); margin:24px 0; }
.detail__body p { margin-bottom:16px; }
.detail__pager {
  display:flex; justify-content:space-between; align-items:center;
  margin-top:48px; padding-top:24px; border-top:1px solid var(--border);
  font-size:0.88rem; color:var(--text-muted);
}
.detail__pager a { color:var(--text-secondary); }
.detail__pager a:hover { color:var(--primary); }

/* 改造案例详情 — 大图+信息 */
.case-detail-gallery { border-radius:var(--radius-lg); overflow:hidden; margin-bottom:28px; }
.case-detail-gallery img { width:100%; aspect-ratio:16/9; object-fit:cover; }
.case-compare-row {
  display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-bottom:28px;
}
.case-compare-row__item {
  position:relative; border-radius:var(--radius-md); overflow:hidden;
}
.case-compare-row__item img { width:100%; aspect-ratio:4/3; object-fit:cover; }
.case-compare-row__label {
  position:absolute; bottom:0; left:0; right:0;
  padding:10px; text-align:center; font-size:0.82rem; font-weight:700; color:#fff;
}
.case-compare-row__label--before { background:rgba(100,116,139,0.85); }
.case-compare-row__label--after { background:var(--primary); }

/* 相关推荐 */
.related-section { margin-top:56px; }
.related-title { font-size:1.35rem; font-weight:700; margin-bottom:24px; color:var(--text-primary); }
.related-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }

/* ============================================================
   联系我们
   ============================================================ */
.contact-grid { display:grid; grid-template-columns:1fr 1fr; gap:48px; }
.contact-info-card {
  padding:24px; background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-md); margin-bottom:12px; display:flex; gap:16px;
  transition: all var(--fast);
}
.contact-info-card:hover { border-color:var(--primary); }
.contact-info-card__icon {
  width:48px; height:48px; border-radius:var(--radius-sm);
  background:var(--primary-bg); display:flex; align-items:center; justify-content:center;
  color:var(--primary); font-size:1.1rem; flex-shrink:0;
}
.contact-info-card__label { font-size:0.85rem; font-weight:700; color:var(--text-primary); }
.contact-info-card__value { font-size:0.9rem; color:var(--text-secondary); }
/* 表单 */
.form-card {
  padding:36px; background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); box-shadow:var(--shadow-sm);
}
.form-group { margin-bottom:18px; }
.form-group label { display:block; font-size:0.85rem; color:var(--text-secondary); margin-bottom:6px; font-weight:500; }
.form-group label .required { color:var(--accent); }
.form-control {
  width:100%; padding:13px 16px; background:var(--bg-page); border:1px solid var(--border);
  border-radius:var(--radius-sm); color:var(--text-primary); font-size:0.9rem;
  transition: all var(--fast);
}
.form-control:focus { outline:none; border-color:var(--primary); box-shadow:0 0 0 3px rgba(37,99,235,0.1); }
textarea.form-control { resize:vertical; min-height:100px; }
select.form-control {
  appearance:none; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2364748B' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:right 14px center; padding-right:36px;
}

/* ============================================================
   服务页
   ============================================================ */
.service-detail-block { margin-bottom:48px; }
.service-detail-block h2 { font-size:1.5rem; margin-bottom:16px; color:var(--text-primary); }
.service-detail-block p { color:var(--text-secondary); line-height:1.9; margin-bottom:16px; }
.service-feature-list {
  display:grid; grid-template-columns:repeat(2,1fr); gap:12px; margin:20px 0;
}
.service-feature-item {
  display:flex; align-items:center; gap:10px; padding:14px 16px;
  background:var(--bg-page); border-radius:var(--radius-sm);
  font-size:0.9rem; color:var(--text-secondary);
}
.service-feature-item i { color:var(--primary); font-size:1rem; }

/* ============================================================
   搜索
   ============================================================ */
.search-box { max-width:700px; margin:0 auto; }
.search-form-row { display:flex; gap:10px; }
.search-input-wrap { position:relative; flex:1; }
.search-input-wrap i { position:absolute; left:16px; top:50%; transform:translateY(-50%); color:var(--text-muted); }
.search-input-wrap input { padding-left:44px; }
.search-result-item {
  display:flex; gap:16px; padding:18px; background:var(--bg-card);
  border:1px solid var(--border); border-radius:var(--radius-md); margin-bottom:10px;
  transition: all var(--fast);
}
.search-result-item:hover { border-color:var(--primary); }
.search-result-item__thumb {
  width:120px; height:90px; border-radius:var(--radius-sm); overflow:hidden; flex-shrink:0; background:var(--bg-gray);
}
.search-result-item__thumb img { width:100%; height:100%; object-fit:cover; }
.search-result-item__info { flex:1; min-width:0; }
.search-result-item__title {
  font-size:1rem; font-weight:600; color:var(--text-primary);
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis; margin-bottom:4px;
}
.search-result-item__date { font-size:0.78rem; color:var(--text-muted); margin-bottom:4px; }

/* ============================================================
   分页
   ============================================================ */
.pagination { display:flex; justify-content:center; align-items:center; gap:4px; margin-top:48px; }
.pagination a, .pagination span {
  display:inline-flex; align-items:center; justify-content:center;
  min-width:40px; height:40px; padding:0 8px; font-size:0.88rem;
  color:var(--text-secondary); border-radius:var(--radius-sm);
  border:1px solid var(--border); transition: all var(--fast);
}
.pagination a:hover { border-color:var(--primary); color:var(--primary); background:var(--primary-bg); }
.pagination .active { background:var(--primary); color:#fff; border-color:var(--primary); font-weight:600; }
.pagination .disabled { color:var(--text-muted); pointer-events:none; opacity:0.5; }

/* ============================================================
   空状态
   ============================================================ */
.empty-state { text-align:center; padding:60px 20px; }
.empty-state i { font-size:3rem; color:var(--text-muted); margin-bottom:16px; display:block; }
.empty-state p { color:var(--text-muted); font-size:0.95rem; }

/* ============================================================
   Footer
   ============================================================ */
.footer { background:var(--bg-dark); color:rgba(255,255,255,0.7); }
.footer__grid {
  display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr; gap:40px;
  padding:60px 0 40px; max-width:var(--container); margin:0 auto; padding-left:24px; padding-right:24px;
}
.footer__col-title { font-size:1.05rem; font-weight:700; color:#fff; margin-bottom:20px; }
.footer__desc { font-size:0.88rem; line-height:1.7; margin-bottom:16px; }
.footer__links { display:flex; flex-direction:column; gap:10px; }
.footer__links a { font-size:0.88rem; color:rgba(255,255,255,0.6); transition: color var(--fast); }
.footer__links a:hover { color:var(--accent); }
.footer__contact-item { display:flex; gap:10px; font-size:0.85rem; margin-bottom:10px; }
.footer__contact-item i { color:var(--accent); margin-top:3px; flex-shrink:0; }
.footer__qrcode {
  width:110px; height:110px; background:#fff; border-radius:var(--radius-sm);
  padding:6px; display:flex; align-items:center; justify-content:center;
  font-size:0.7rem; color:#999;
}
.footer__bottom {
  border-top:1px solid rgba(255,255,255,0.08); padding:20px 0;
}
.footer__bottom-inner {
  display:flex; justify-content:space-between; align-items:center;
  max-width:var(--container); margin:0 auto; padding:0 24px;
  font-size:0.8rem; color:rgba(255,255,255,0.4); flex-wrap:wrap; gap:8px;
}
.footer__bottom a { color:rgba(255,255,255,0.4); }
.footer__bottom a:hover { color:var(--accent); }
/* 友情链接 */
.friend-links { display:flex; flex-wrap:wrap; gap:14px; align-items:center; padding:24px 0; }
.friend-links__label {
  font-size:0.82rem; color:rgba(255,255,255,0.4); flex-shrink:0;
}
.friend-links a {
  font-size:0.82rem; color:rgba(255,255,255,0.5); transition:color var(--fast);
}
.friend-links a:hover { color:var(--accent); }

/* ============================================================
   返回顶部 & 在线客服
   ============================================================ */
.back-top {
  position:fixed; right:20px; bottom:80px; width:44px; height:44px;
  border-radius:var(--radius-full); background:var(--primary); color:#fff;
  border:none; display:flex; align-items:center; justify-content:center;
  font-size:1rem; cursor:pointer; z-index:80;
  opacity:0; pointer-events:none; box-shadow:var(--shadow-blue);
  transition: all var(--normal) var(--ease);
}
.back-top.show { opacity:1; pointer-events:auto; }
.back-top:hover { background:var(--primary-dark); transform:translateY(-2px); }
/* 在线客服按钮 */
.online-service {
  position:fixed; right:20px; bottom:136px; width:52px; height:52px;
  border-radius:var(--radius-full); background:var(--accent); color:#fff;
  border:none; display:flex; align-items:center; justify-content:center;
  font-size:1.3rem; cursor:pointer; z-index:80;
  box-shadow:0 4px 16px rgba(249,115,22,0.3);
  animation: pulse 2s infinite; transition: all var(--fast);
}
.online-service:hover { transform:scale(1.1); }

/* ============================================================
   动画系统
   ============================================================ */
@keyframes fadeInUp {
  from { opacity:0; transform:translateY(30px); }
  to { opacity:1; transform:translateY(0); }
}
@keyframes pulse {
  0%, 100% { box-shadow:0 4px 16px rgba(249,115,22,0.3); }
  50% { box-shadow:0 4px 28px rgba(249,115,22,0.55); }
}
@keyframes slideInLeft {
  from { opacity:0; transform:translateX(-40px); }
  to { opacity:1; transform:translateX(0); }
}
@keyframes slideInRight {
  from { opacity:0; transform:translateX(40px); }
  to { opacity:1; transform:translateX(0); }
}

/* AOS 覆盖 */
[data-aos] { transition-timing-function: var(--ease); }

/* ============================================================
   响应式 — 768px
   ============================================================ */
@media (max-width: 1023px) {
  :root { --section-py: 56px; }
  .header__nav, .header__cta { display:none; }
  .hamburger { display:flex; }
  .stats-bar__grid { grid-template-columns:repeat(2,1fr); gap:20px; }
  .cases-grid, .services-grid, .reviews-grid, .list-grid { grid-template-columns:repeat(2,1fr); }
  .process-grid { grid-template-columns:repeat(2,1fr); }
  .process-step::after { display:none; }
  .compare-gallery { grid-template-columns:1fr; }
  .contact-grid { grid-template-columns:1fr; }
  .footer__grid { grid-template-columns:1fr 1fr; }
  .news-list-item { flex-direction:column; }
  .news-list-item__thumb { width:100%; height:180px; }
  .hero__stats { display:none; }
  .service-feature-list { grid-template-columns:1fr; }
}
@media (max-width: 767px) {
  :root { --section-py: 48px; }
  .hero { height:80vh; min-height:480px; }
  .hero__title { font-size:1.6rem; }
  .cases-grid, .services-grid, .reviews-grid, .list-grid { grid-template-columns:1fr; }
  .stats-bar__grid { grid-template-columns:repeat(2,1fr); gap:16px; }
  .process-grid { grid-template-columns:1fr; }
  .footer__grid { grid-template-columns:1fr; gap:32px; }
  .footer__bottom-inner { flex-direction:column; text-align:center; }
  .inner-banner { height:220px; }
  .detail__params { grid-template-columns:repeat(2,1fr); }
  .related-grid { grid-template-columns:1fr; }
  .case-compare-row { grid-template-columns:1fr; }
  .cta-section__actions { flex-direction:column; align-items:center; }
  .pagination a, .pagination span { min-width:34px; height:34px; font-size:0.8rem; }
}
/* 偏好：减少动画 */
@media (prefers-reduced-motion:reduce) {
  *, *::before, *::after { animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important; }
}

/* ============================================================
   首页改造案例 · 手机端专属(≤767)：一行2个 / 最多4个 / 紧凑
   仅作用于首页 cases-grid--home，PC与其他页面不受影响
   ============================================================ */
@media (max-width: 767px) {
  .cases-grid--home { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .cases-grid--home > *:nth-child(n + 5) { display: none; }
  .cases-grid--home .case-card__compare img { aspect-ratio: 4 / 3; }
  .cases-grid--home .case-card__info { padding: 10px; }
  .cases-grid--home .card__tag { font-size: 0.6rem; padding: 2px 8px; margin-bottom: 6px; }
  .cases-grid--home .case-card__title { font-size: 0.9rem; margin-bottom: 2px; line-height: 1.35; }
  .cases-grid--home .card__meta { display: none; }
}

/* ============================================================
   首页改造服务 · 手机端专属(≤767)：一行2个 / 紧凑卡片
   仅作用于首页 services-grid，PC与其他页面不受影响
   ============================================================ */
@media (max-width: 767px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .services-grid .service-card { padding: 18px 10px; border-radius: var(--radius-md); }
  .services-grid .service-card__icon { width: 46px; height: 46px; font-size: 1.2rem; margin-bottom: 8px; }
  .services-grid .service-card__title { font-size: 0.95rem; margin-bottom: 4px; }
  .services-grid .service-card__desc { font-size: 0.72rem; }
  /* 奇数个(当前5个)时,最后一个占整行,避免右侧空位 */
  .services-grid > :last-child:nth-child(odd) { grid-column: 1 / -1; }
}

/* ============================================================
   首页 · 变化看得见(前后对比) · 手机端专属(≤767)：只留前2个
   仅作用于首页 compare-gallery，PC(2×2共4张)不变
   ============================================================ */
@media (max-width: 767px) {
  .compare-gallery > *:nth-child(n + 3) { display: none; }
}

/* ============================================================
   首页 · 改造流程 · 手机端专属(≤767)：4个一行 / 紧凑
   仅作用于首页 process-grid--home，PC与其他页面(含 process.html)不受影响
   ============================================================ */
@media (max-width: 767px) {
  .process-grid--home { grid-template-columns: repeat(4, 1fr); }
  .process-grid--home .process-step { padding: 16px 2px 8px; }
  .process-grid--home .process-step::after { display: none; }
  .process-grid--home .process-step__num { width: 40px; height: 40px; font-size: 1.05rem; margin: 0 auto 8px; }
  .process-grid--home .process-step__title { font-size: 0.8rem; margin-bottom: 2px; }
  .process-grid--home .process-step__time { font-size: 0.65rem; }
  .process-grid--home .process-step__desc { display: none; }
}

/* ============================================================
   首页 · 客户评价 · 手机端专属(≤767)：只留前2个 / 紧凑
   仅作用于首页 reviews-grid--home，PC与其他页面(含 reviews.html)不受影响
   ============================================================ */
@media (max-width: 767px) {
  .reviews-grid--home > *:nth-child(n + 3) { display: none; }
  .reviews-grid--home .review-card { padding: 18px; }
  .reviews-grid--home .review-card__stars { font-size: 0.8rem; margin-bottom: 8px; }
  .reviews-grid--home .review-card__text { font-size: 0.88rem; line-height: 1.6; margin-bottom: 12px; }
  .reviews-grid--home .review-card__author { padding-top: 12px; gap: 10px; }
  .reviews-grid--home .review-card__avatar { width: 34px; height: 34px; font-size: 0.8rem; }
  .reviews-grid--home .review-card__name { font-size: 0.85rem; }
  .reviews-grid--home .review-card__addr { font-size: 0.72rem; }
}

/* ============================================================
   首页 · 改造知识 · 手机端专属(≤767)：只留前2条 / 紧凑
   仅作用于首页 news-list--home，PC与其他页面(含 newslist.html)不受影响
   ============================================================ */
@media (max-width: 767px) {
  .news-list--home > *:nth-child(n + 3) { display: none; }
  .news-list--home .news-list-item { padding: 12px; gap: 12px; border-radius: var(--radius-sm); }
  .news-list--home .news-list-item__thumb { height: 110px; }
  .news-list--home .news-list-item__title { font-size: 0.95rem; }
  .news-list--home .news-list-item__desc { font-size: 0.8rem; margin: 0 0 6px; }
  .news-list--home .news-list-item__date { font-size: 0.7rem; }
}

/* ============================================================
   首页 CTA 区 · 手机端专属(≤767)：压缩留白/字号/按钮
   仅作用于首页 cta-section，PC 不变
   ============================================================ */
@media (max-width: 767px) {
  .cta-section { padding: 40px 0 48px; }
  .cta-section__title { font-size: 1.25rem; margin-bottom: 8px; }
  .cta-section__desc { font-size: 0.9rem; margin-bottom: 18px; }
  .cta-section__actions { gap: 10px; }
  .cta-section .btn { padding: 11px 24px; font-size: 0.95rem; }
}

/* ============================================================
   公共页脚 · 快速链接 · 手机端专属(≤767)：横向放一行
   PC/平板(≥768) 保持竖排不变
   ============================================================ */
@media (max-width: 767px) {
  .footer__links { flex-direction: row; flex-wrap: wrap; gap: 8px 12px; }
  .footer__links a { font-size: 0.8rem; }
}

/* ============================================================
   改造案例列表页(cases-all / cases) · 手机端专属(≤767)：一行2个 / 紧凑
   仅作用于 .list-grid(仅案例列表页使用)，PC/平板不变
   ============================================================ */
@media (max-width: 767px) {
  .list-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .list-grid .case-card__info { padding: 10px; }
  .list-grid .card__tag { font-size: 0.6rem; padding: 2px 8px; margin-bottom: 6px; }
  .list-grid .case-card__title { font-size: 0.9rem; margin-bottom: 2px; line-height: 1.35; }
  .list-grid .card__meta { display: none; }
}

/* ============================================================
   改造流程页(process.html) · 手机端专属(≤767)：顶部4步一行/紧凑
   PC/平板不变（首页 process-grid--home 已有相同紧凑规则，此处覆盖普通 .process-grid）
   ============================================================ */
@media (max-width: 767px) {
  .process-grid { grid-template-columns: repeat(4, 1fr); }
  .process-grid .process-step { padding: 16px 2px 8px; }
  .process-grid .process-step::after { display: none; }
  .process-grid .process-step__num { width: 40px; height: 40px; font-size: 1.05rem; margin: 0 auto 8px; }
  .process-grid .process-step__title { font-size: 0.8rem; margin-bottom: 2px; }
  .process-grid .process-step__time { font-size: 0.65rem; }
  .process-grid .process-step__desc { display: none; }
}

/* ============================================================
   新闻资讯页 / 客户评价页 · 手机端专属(≤767)：列表条目/卡片紧凑
   仅作用于 newslist.html(--page) 与 reviews.html(--page)，首页模块与PC不受影响
   ============================================================ */
@media (max-width: 767px) {
  .news-list--page .news-list-item { padding: 14px; gap: 12px; border-radius: var(--radius-sm); }
  .news-list--page .news-list-item__thumb { height: 120px; }
  .news-list--page .news-list-item__title { font-size: 0.95rem; }
  .news-list--page .news-list-item__desc { font-size: 0.8rem; margin: 0 0 6px; }
  .news-list--page .news-list-item__date { font-size: 0.7rem; }
}
@media (max-width: 767px) {
  .reviews-grid--page { gap: 16px; }
  .reviews-grid--page .review-card { padding: 18px; }
  .reviews-grid--page .review-card__stars { font-size: 0.8rem; margin-bottom: 8px; }
  .reviews-grid--page .review-card__text { font-size: 0.88rem; line-height: 1.6; margin-bottom: 12px; }
  .reviews-grid--page .review-card__author { padding-top: 12px; gap: 10px; }
  .reviews-grid--page .review-card__avatar { width: 34px; height: 34px; font-size: 0.8rem; }
  .reviews-grid--page .review-card__name { font-size: 0.85rem; }
  .reviews-grid--page .review-card__addr { font-size: 0.72rem; }
}