/* ============================================
   壹休家居 - 高级感视觉升级
   Design System v2.0
   ============================================ */

:root {
  /* 品牌色阶 */
  --brand-50: #faf3ef;
  --brand-100: #f2e2d9;
  --brand-200: #e4c4b3;
  --brand-300: #d4a088;
  --brand-400: #c27a5c;
  --brand-500: #a95036;
  --brand-600: #8f422d;
  --brand-700: #743626;
  --brand-800: #5a2a1e;
  --brand-900: #3f1d15;

  /* 金色辅助 */
  --accent-400: #d9a24a;
  --accent-500: #c9872a;
  --accent-600: #a86e1f;

  /* 中性色 */
  --ink-900: #1a2324;
  --ink-800: #223033;
  --ink-700: #2d3e41;
  --ink-600: #3d4f52;
  --ink-500: #526063;
  --ink-400: #6b7a7d;
  --ink-300: #8a9799;
  --ink-200: #b8c0c1;
  --ink-100: #dfe4e4;
  --ink-50: #f4f6f6;

  /* 背景色 */
  --bg-warm: #f7f4f0;
  --bg-warm-2: #f0ebe4;
  --bg-dark: #1a2324;
  --bg-dark-2: #223033;

  /* 功能色 */
  --line: #e5ded6;
  --line-light: #ede7df;
  --muted: #647174;

  /* 阴影系统 */
  --shadow-xs: 0 1px 2px rgba(26, 35, 36, 0.04);
  --shadow-sm: 0 2px 8px rgba(26, 35, 36, 0.06);
  --shadow-md: 0 8px 24px rgba(26, 35, 36, 0.08);
  --shadow-lg: 0 16px 40px rgba(26, 35, 36, 0.10);
  --shadow-xl: 0 24px 56px rgba(26, 35, 36, 0.12);
  --shadow-brand: 0 12px 28px rgba(169, 80, 54, 0.18);
  --shadow-brand-lg: 0 18px 40px rgba(169, 80, 54, 0.24);

  /* 圆角 */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* 过渡 */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 0.2s;
  --duration-normal: 0.35s;
  --duration-slow: 0.6s;

  /* 字体 */
  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  color: var(--ink-800);
  font-family: var(--font-sans);
  line-height: 1.75;
  font-size: 16px;
  background: #fff;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
}

.container {
  width: min(1180px, calc(100% - 48px));
  margin: auto;
}

h1, h2, h3, p {
  margin-top: 0;
}

h1, h2, h3 {
  color: var(--ink-900);
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* ============================================
   滚动动画
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }

/* ============================================
   导航栏
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid rgba(229, 222, 214, 0.6);
  transition: box-shadow var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
  background: rgba(255, 255, 255, 0.94);
}

.nav-wrap {
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo img {
  width: 176px;
  display: block;
  transition: transform var(--duration-normal) var(--ease-out);
}

.brand-logo:hover img {
  transform: scale(1.03);
}

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

.nav a {
  position: relative;
  text-decoration: none;
  color: var(--ink-600);
  font-size: 15px;
  font-weight: 500;
  padding: 6px 0;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-500), var(--accent-500));
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-normal) var(--ease-out);
}

.nav a:hover,
.nav a.active {
  color: var(--brand-600);
}

.nav a:hover::after,
.nav a.active::after {
  transform: scaleX(1);
}

/* ============================================
   Hero 区域
   ============================================ */
.hero {
  position: relative;
  padding: 100px 0 90px;
  background: linear-gradient(135deg, #f8f2ec 0%, #ffffff 45%, #f0f4f2 100%);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(169, 80, 54, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(201, 135, 42, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  color: var(--brand-600);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 28px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-500), var(--brand-500));
  margin-right: 12px;
  border-radius: 2px;
}

.hero h1 {
  font-size: clamp(40px, 5.2vw, 68px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 18px 0 22px;
  font-weight: 800;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--brand-500), var(--accent-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 18px;
  color: var(--ink-500);
  max-width: 560px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 36px;
}

/* ============================================
   按钮
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left var(--duration-slow) var(--ease-out);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
  color: #fff;
  box-shadow: var(--shadow-brand);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-brand-lg);
  background: linear-gradient(135deg, var(--brand-600), var(--brand-700));
}

.btn-secondary {
  background: #fff;
  color: var(--ink-700);
  border: 1.5px solid var(--ink-100);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  border-color: var(--brand-300);
  color: var(--brand-600);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ============================================
   Hero 插画
   ============================================ */
.hero-illustration,
.panel-illustration {
  margin: 0;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line-light);
  box-shadow: var(--shadow-lg);
  transition: transform var(--duration-slow) var(--ease-out),
              box-shadow var(--duration-slow) var(--ease-out);
}

.hero-illustration:hover,
.panel-illustration:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.hero-illustration img,
.panel-illustration img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform var(--duration-slow) var(--ease-out);
}

.hero-illustration:hover img,
.panel-illustration:hover img {
  transform: scale(1.02);
}

.hero-illustration figcaption {
  padding: 14px 20px;
  color: var(--ink-400);
  font-size: 13px;
  background: #fff;
  border-top: 1px solid var(--line-light);
  letter-spacing: 0.02em;
}

/* ============================================
   能力条
   ============================================ */
.capability-strip {
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
  background: #fff;
  position: relative;
  z-index: 2;
}

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

.capability-list div {
  padding: 28px 32px;
  border-left: 1px solid var(--line-light);
  transition: background var(--duration-normal) var(--ease-out);
  position: relative;
}

.capability-list div:first-child {
  border-left: 0;
}

.capability-list div:hover {
  background: var(--brand-50);
}

.capability-list strong {
  display: block;
  font-size: 17px;
  color: var(--ink-800);
  font-weight: 700;
  margin-bottom: 4px;
}

.capability-list span {
  display: block;
  font-size: 13px;
  color: var(--ink-400);
}

/* ============================================
   通用 Section
   ============================================ */
.section {
  padding: 96px 0;
  position: relative;
}

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

.section-heading {
  max-width: 720px;
  margin-bottom: 48px;
}

.section-heading h2 {
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1.25;
  margin: 12px 0 14px;
  font-weight: 800;
}

.section-heading p {
  color: var(--ink-400);
  font-size: 17px;
  line-height: 1.8;
}

.section-heading.centered {
  text-align: center;
  margin-right: auto;
  margin-left: auto;
}

/* ============================================
   网格与卡片
   ============================================ */
.grid {
  display: grid;
  gap: 22px;
}

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

.card,
.product-card {
  background: #fff;
  border: 1px solid var(--line-light);
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.card::before,
.product-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-500), var(--accent-500));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-normal) var(--ease-out);
}

.card:hover,
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--brand-200);
}

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

.number {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-500);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  font-family: var(--font-serif);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 700;
}

.card p {
  margin: 0;
  color: var(--ink-400);
  font-size: 15px;
  line-height: 1.75;
}

/* ============================================
   流程列表
   ============================================ */
.process-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-light);
}

.process-list article {
  padding: 32px 26px;
  background: #fff;
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
}

.process-list article:hover {
  background: var(--brand-50);
}

.process-list span {
  display: inline-block;
  color: var(--accent-500);
  font-size: 15px;
  font-weight: 700;
  font-family: var(--font-serif);
  margin-bottom: 12px;
}

.process-list h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.process-list p {
  margin: 0;
  color: var(--ink-400);
  font-size: 14px;
  line-height: 1.7;
}

/* ============================================
   服务布局
   ============================================ */
.service-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 56px;
  align-items: center;
}

.service-copy h2 {
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1.25;
  margin: 12px 0 16px;
  font-weight: 800;
}

.service-copy p {
  color: var(--ink-400);
  font-size: 17px;
}

.service-copy .btn {
  margin-top: 20px;
}

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

.product-card {
  border-left: 4px solid var(--brand-500);
  padding: 30px 28px;
}

.product-card::before {
  display: none;
}

.product-card h3 {
  font-size: 22px;
  margin: 0 0 10px;
  font-weight: 700;
}

.product-card p {
  margin: 0;
  color: var(--ink-400);
  font-size: 15px;
  line-height: 1.75;
}

/* ============================================
   合作伙伴 / 内容网格
   ============================================ */
.partner,
.content-grid,
.product-intro {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 64px;
  align-items: center;
}

.partner figure {
  margin: 0;
}

.partner img {
  max-width: 460px;
  width: 100%;
  display: block;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: transform var(--duration-slow) var(--ease-out),
              box-shadow var(--duration-slow) var(--ease-out);
}

.partner img:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-xl);
}

.partner h2,
.content-grid h2,
.product-intro h2 {
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1.25;
  margin: 12px 0 16px;
  font-weight: 800;
}

.lead {
  font-size: 18px;
  color: var(--ink-600);
  line-height: 1.8;
  font-weight: 500;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 24px 0;
}

.check-list li {
  margin: 12px 0;
  color: var(--ink-600);
  font-size: 16px;
  padding-left: 32px;
  position: relative;
  line-height: 1.6;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.check-list li::after {
  content: "✓";
  position: absolute;
  left: 4px;
  top: 4px;
  color: #fff;
  font-size: 12px;
  font-weight: bold;
}

/* ============================================
   页面 Hero（内页）
   ============================================ */
.page-hero {
  position: relative;
  text-align: center;
  padding: 80px 0 72px;
  background: linear-gradient(135deg, var(--bg-warm) 0%, #fff 100%);
  border-bottom: 1px solid var(--line-light);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(169, 80, 54, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero h1 {
  font-size: clamp(36px, 4.5vw, 52px);
  margin: 0 0 14px;
  font-weight: 800;
  letter-spacing: -0.02em;
  position: relative;
}

.page-hero p {
  margin: 0;
  color: var(--ink-400);
  font-size: 18px;
  position: relative;
}

/* ============================================
   产品介绍
   ============================================ */
.product-intro {
  grid-template-columns: 0.78fr 1.22fr;
  gap: 64px;
}

.product-intro p {
  color: var(--ink-400);
  font-size: 16px;
  line-height: 1.8;
}

/* ============================================
   联系面板
   ============================================ */
.contact-panel {
  padding: 38px 34px;
  background: linear-gradient(145deg, var(--bg-dark), var(--bg-dark-2));
  color: #fff;
  border-radius: var(--radius-lg);
  border-top: 4px solid var(--accent-500);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.contact-panel::before {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(201, 135, 42, 0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.contact-panel h2 {
  font-size: 28px;
  color: #fff;
  margin-bottom: 14px;
  position: relative;
}

.contact-panel p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
  line-height: 1.8;
  position: relative;
}

.contact-panel .btn {
  background: linear-gradient(135deg, var(--accent-400), var(--accent-500));
  color: var(--ink-900);
  margin-top: 18px;
  box-shadow: 0 8px 20px rgba(201, 135, 42, 0.25);
  position: relative;
}

.contact-panel .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(201, 135, 42, 0.35);
}

/* ============================================
   数据统计区
   ============================================ */
.stats-section {
  padding: 72px 0;
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-2) 100%);
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}

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

.stat-number {
  font-size: clamp(36px, 4vw, 52px);
  font-weight: 800;
  color: #fff;
  line-height: 1;
  margin-bottom: 10px;
  font-family: var(--font-serif);
}

.stat-number span {
  color: var(--accent-400);
}

.stat-label {
  color: rgba(255, 255, 255, 0.6);
  font-size: 15px;
  letter-spacing: 0.05em;
}

/* ============================================
   页脚
   ============================================ */
.footer {
  background: linear-gradient(180deg, #1a2324 0%, #141b1c 100%);
  color: rgba(255, 255, 255, 0.65);
  padding: 64px 0 28px;
  position: relative;
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-500), var(--accent-500), var(--brand-500));
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer h3 {
  color: #fff;
  margin-bottom: 16px;
  font-size: 17px;
  font-weight: 700;
}

.footer p,
.footer a {
  font-size: 14px;
  line-height: 2;
  margin: 0;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--duration-fast) var(--ease-out);
}

.footer a:hover {
  color: var(--accent-400);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 22px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
}

/* ============================================
   浮动电话按钮
   ============================================ */
.phone-float {
  position: fixed;
  right: 24px;
  bottom: 28px;
  z-index: 99;
  background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
  color: #fff;
  padding: 14px 24px;
  border-radius: 99px;
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
  box-shadow: var(--shadow-brand-lg);
  transition: all var(--duration-normal) var(--ease-out);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.phone-float::before {
  content: "📞";
  font-size: 16px;
}

.phone-float:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 20px 44px rgba(169, 80, 54, 0.35);
}

/* ============================================
   响应式 - 平板
   ============================================ */
@media (max-width: 960px) {
  .features {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .hero-grid,
  .partner,
  .content-grid,
  .product-intro,
  .service-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-illustration {
    max-width: 560px;
    margin: 0 auto;
  }
}

/* ============================================
   响应式 - 手机
   ============================================ */
@media (max-width: 760px) {
  body {
    font-size: 15px;
  }

  .container {
    width: calc(100% - 32px);
  }

  .site-header {
    position: relative;
  }

  .nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    min-height: 64px;
  }

  .brand-logo img {
    width: 140px;
    margin: 0;
  }

  .nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .mobile-nav {
    display: block;
  }

  .hero {
    padding: 52px 0 48px;
  }

  .hero-grid,
  .partner,
  .content-grid,
  .product-intro,
  .service-layout,
  .features,
  .product-grid,
  .footer-grid,
  .process-list {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .hero h1 {
    font-size: 38px;
    line-height: 1.22;
  }

  .hero p {
    font-size: 16px;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .hero-actions .btn {
    padding: 13px 10px;
    font-size: 14px;
  }

  .hero-illustration figcaption {
    padding: 10px 14px;
  }

  .capability-list {
    grid-template-columns: 1fr;
  }

  .capability-list div {
    border-left: 0;
    border-top: 1px solid var(--line-light);
    padding: 18px 4px;
  }

  .capability-list div:first-child {
    border-top: 0;
  }

  .section {
    padding: 56px 0;
  }

  .section-heading {
    margin-bottom: 32px;
  }

  .section-heading h2,
  .service-copy h2,
  .partner h2,
  .content-grid h2,
  .product-intro h2 {
    font-size: 30px;
  }

  .card,
  .product-card,
  .process-list article {
    padding: 24px 20px;
  }

  .page-hero {
    padding: 48px 0 44px;
  }

  .page-hero h1 {
    font-size: 32px;
  }

  .page-hero p {
    font-size: 15px;
  }

  .contact-panel {
    padding: 28px 24px;
  }

  .footer {
    padding: 44px 0 22px;
  }

  .footer-grid {
    gap: 28px;
  }

  .phone-float {
    right: 14px;
    bottom: 16px;
    padding: 11px 18px;
    font-size: 14px;
  }

  .partner img {
    margin: auto;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .stat-item {
    padding: 12px;
  }
}

@media (max-width: 360px) {
  .nav a {
    font-size: 12px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero-actions {
    grid-template-columns: 1fr;
  }

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

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

/* ============================================
   回到顶部按钮
   ============================================ */
.back-top {
  position: fixed;
  right: 24px;
  bottom: 90px;
  z-index: 98;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--duration-normal) var(--ease-out);
  box-shadow: var(--shadow-md);
}

.back-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-top:hover {
  background: var(--brand-500);
  color: #fff;
  border-color: var(--brand-500);
  transform: translateY(-3px);
  box-shadow: var(--shadow-brand);
}

/* ============================================
   移动端汉堡菜单
   ============================================ */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast) var(--ease-out);
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink-700);
  border-radius: 2px;
  transition: all var(--duration-normal) var(--ease-out);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-light);
  box-shadow: var(--shadow-md);
  z-index: 99;
  padding: 12px 0;
  transform: translateY(-10px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

.mobile-nav.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav a {
  display: block;
  padding: 14px 24px;
  color: var(--ink-700);
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid var(--line-light);
  transition: all var(--duration-fast) var(--ease-out);
}

.mobile-nav a:last-child {
  border-bottom: none;
}

.mobile-nav a:hover,
.mobile-nav a.active {
  color: var(--brand-600);
  background: var(--brand-50);
  padding-left: 30px;
}

/* ============================================
   产品规格表
   ============================================ */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--line-light);
}

.spec-table th {
  background: linear-gradient(135deg, var(--bg-dark), var(--bg-dark-2));
  color: #fff;
  padding: 14px 18px;
  text-align: left;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.spec-table td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--line-light);
  font-size: 15px;
  color: var(--ink-600);
}

.spec-table tr:last-child td {
  border-bottom: none;
}

.spec-table tr:nth-child(even) td {
  background: var(--bg-warm);
}

.spec-table tr:hover td {
  background: var(--brand-50);
}

/* ============================================
   证书展示区
   ============================================ */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 12px;
}

.cert-card {
  background: #fff;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--duration-normal) var(--ease-out);
}

.cert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--brand-200);
}

.cert-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--brand-50), var(--accent-400));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
}

.cert-card h4 {
  font-size: 17px;
  margin: 0 0 6px;
  color: var(--ink-800);
  font-weight: 700;
}

.cert-card p {
  font-size: 13px;
  color: var(--ink-400);
  margin: 0;
  line-height: 1.6;
}

/* ============================================
   微信二维码卡片
   ============================================ */
.wechat-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--line-light);
}

.wechat-card img {
  width: 100%;
  max-width: 220px;
  display: block;
  margin: 0 auto 14px;
  border-radius: var(--radius-md);
}

.wechat-card h4 {
  font-size: 17px;
  margin: 0 0 4px;
  color: var(--ink-800);
  font-weight: 700;
}

.wechat-card p {
  font-size: 13px;
  color: var(--ink-400);
  margin: 0;
}

.wechat-card .wechat-id {
  display: inline-block;
  margin-top: 10px;
  padding: 6px 14px;
  background: #07c160;
  color: #fff;
  border-radius: 99px;
  font-size: 13px;
  font-weight: 600;
}

/* ============================================
   底部 CTA 咨询引导区
   ============================================ */
.cta-section {
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-2) 100%);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(201, 135, 42, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-section::after {
  content: "";
  position: absolute;
  bottom: -60px;
  left: -60px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(169, 80, 54, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-content {
  position: relative;
  text-align: center;
  max-width: 640px;
  margin: 0 auto 36px;
}

.cta-content h2 {
  font-size: clamp(28px, 3.5vw, 40px);
  color: #fff;
  margin: 0 0 14px;
  font-weight: 800;
}

.cta-content p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.65);
  margin: 0;
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  gap: 20px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  position: relative;
}

.cta-phone {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
  color: #fff;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 700;
  font-size: 17px;
  box-shadow: var(--shadow-brand-lg);
  transition: all var(--duration-normal) var(--ease-out);
}

.cta-phone:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 48px rgba(169, 80, 54, 0.35);
}

.cta-wechat {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: #07c160;
  color: #fff;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 700;
  font-size: 17px;
  box-shadow: 0 12px 28px rgba(7, 193, 96, 0.25);
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
}

.cta-wechat:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 36px rgba(7, 193, 96, 0.35);
}

.cta-qr-popup {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px;
  z-index: 200;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.3);
  opacity: 0;
  transition: all var(--duration-normal) var(--ease-out);
  text-align: center;
  max-width: 340px;
  width: 90%;
}

.cta-qr-popup.show {
  display: block;
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.cta-qr-popup img {
  width: 100%;
  max-width: 240px;
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

.cta-qr-popup h4 {
  font-size: 18px;
  margin: 0 0 6px;
  color: var(--ink-800);
}

.cta-qr-popup p {
  font-size: 14px;
  color: var(--ink-400);
  margin: 0;
}

.cta-qr-close {
  position: absolute;
  top: 12px;
  right: 14px;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--ink-300);
  cursor: pointer;
  line-height: 1;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
}

.cta-qr-close:hover {
  color: var(--ink-600);
  background: var(--ink-50);
}

.cta-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 199;
  backdrop-filter: blur(4px);
}

.cta-overlay.show {
  display: block;
}

/* 移动菜单默认样式在本段之前定义；在这里覆盖其隐藏状态。 */
@media (max-width: 760px) {
  .menu-toggle {
    display: flex;
  }

  .mobile-nav {
    display: block;
  }
}