/* ===================================================================
   烟台丰金门窗 官网统一样式
   配色：深海蓝（沿海·信赖） + 金（丰金品牌）
   =================================================================== */

:root {
  --color-bg: #f7f9fb;
  --color-bg-elevated: #ffffff;
  --color-bg-muted: #eef3f7;
  --color-bg-warm: #f0ebe4;
  --color-text: #1f2933;
  --color-text-secondary: #2c3742;
  --color-muted: #5a6675;
  --color-border: #e3e8ee;
  --color-border-light: #eef2f6;
  --color-accent: #b8935a;          /* 香槟金（更柔和高级） */
  --color-accent-dark: #9a7842;
  --color-accent-soft: rgba(184, 147, 90, 0.12);
  --color-primary: #16212e;         /* 墨黑蓝（沉稳高级） */
  --color-primary-dark: #0d151f;
  --color-primary-soft: rgba(22, 33, 46, 0.06);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --radius-full: 999px;
  --shadow-sm: 0 1px 2px rgba(10, 61, 98, 0.05);
  --shadow: 0 8px 32px rgba(10, 61, 98, 0.08);
  --max-width: 1140px;
  --font: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --transition: 0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--color-text-secondary);
  line-height: 1.8;
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-accent-dark);
  text-decoration: none;
  transition: color var(--transition);
}

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

.container {
  width: min(100% - 2.5rem, var(--max-width));
  margin-inline: auto;
}

/* ── Media / Screenshots ── */
/* 产品说明书图默认为竖长比例：限制最大高度、居中展示，避免撑爆屏幕 */
.media-figure {
  margin: 2rem auto;
  max-width: 480px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  box-shadow: var(--shadow-sm);
}

.media-figure img {
  width: auto;
  max-width: 100%;
  max-height: 640px;
  object-fit: contain;
  display: block;
  margin: 0 auto;
}

/* 横图修饰类：用于将来的横向图片（如实景照片） */
.media-figure--wide {
  max-width: 100%;
}
.media-figure--wide img {
  width: 100%;
  max-height: none;
}

.media-figure figcaption {
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: var(--color-muted);
  border-top: 1px solid var(--color-border-light);
  text-align: center;
}

.screenshot-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

.screenshot-gallery--2 { grid-template-columns: repeat(2, 1fr); }
.screenshot-gallery--3 { grid-template-columns: repeat(3, 1fr); }

.screenshot-item {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  box-shadow: var(--shadow-sm);
}

.screenshot-item img { width: 100%; }

.screenshot-item figcaption {
  padding: 0.625rem 0.875rem;
  font-size: 0.8125rem;
  color: var(--color-muted);
  border-top: 1px solid var(--color-border-light);
  line-height: 1.5;
}

.screenshot-item img,
.media-figure img {
  cursor: zoom-in;
  transition: opacity var(--transition);
}

.screenshot-item:hover img,
.media-figure:hover img { opacity: 0.92; }

.screenshot-item, .media-figure { position: relative; }

/* ── Lightbox ── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(7, 44, 71, 0.9);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.lightbox[hidden] { display: none; }

.lightbox__figure {
  margin: 0;
  max-width: min(96vw, 1400px);
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox__img {
  max-width: 100%;
  max-height: calc(92vh - 3rem);
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  background: var(--color-bg-elevated);
}

.lightbox__caption {
  margin: 0.75rem 0 0;
  max-width: 48rem;
  text-align: center;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.6;
}

.lightbox__close, .lightbox__nav {
  position: fixed;
  border: none;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  cursor: pointer;
  transition: background var(--transition);
  font-family: var(--font);
}

.lightbox__close:hover, .lightbox__nav:hover { background: rgba(255, 255, 255, 0.22); }

.lightbox__close {
  top: 1rem; right: 1rem;
  width: 2.5rem; height: 2.5rem;
  border-radius: var(--radius-full);
  font-size: 1.5rem; line-height: 1;
}

.lightbox__nav {
  top: 50%; transform: translateY(-50%);
  width: 2.75rem; height: 2.75rem;
  border-radius: var(--radius-full);
  font-size: 1.75rem; line-height: 1;
}

.lightbox__nav--prev { left: 1rem; }
.lightbox__nav--next { right: 1rem; }
.lightbox__nav[hidden], .lightbox__close[hidden] { display: none; }
body.lightbox-open { overflow: hidden; }

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 249, 251, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border-light);
  overflow: visible;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  flex-shrink: 0;
}

.logo:hover { color: var(--color-primary); }

.logo-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--color-primary), #1b5e8a);
  color: var(--color-accent);
  border-radius: 9px;
  font-size: 19px;
  font-weight: 900;
}

.logo-img {
  display: block;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  object-fit: contain;
}

.logo-text {
  font-size: 1.125rem;
  letter-spacing: -0.01em;
  line-height: 1;
}

.logo-accent { color: var(--color-accent-dark); }

.site-nav > ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-nav ul { list-style: none; margin: 0; padding: 0; }

.site-nav a {
  display: block;
  padding: 0.45rem 0.7rem;
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: color var(--transition), background var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-primary);
  background: var(--color-bg-muted);
}

.nav-cta {
  background: var(--color-accent) !important;
  color: #fff !important;
  border-radius: var(--radius-full) !important;
  padding: 0.5rem 1.125rem !important;
  font-weight: 700 !important;
}

.nav-cta:hover { background: var(--color-accent-dark) !important; color: #fff !important; }

.has-sub { position: relative; }
.has-sub:hover, .has-sub:focus-within { z-index: 20; }

.site-nav .sub-menu {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 210px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  padding: 0.375rem;
  z-index: 30;
}

.site-nav .sub-menu::before {
  content: "";
  position: absolute;
  top: -0.5rem; left: 0; right: 0;
  height: 0.5rem;
}

.has-sub:hover > .sub-menu,
.has-sub:focus-within > .sub-menu,
.has-sub.open > .sub-menu { display: flex; }

.site-nav .sub-menu li { display: block; width: 100%; }

.site-nav .sub-menu a {
  white-space: nowrap;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  padding: 0.5rem 0.75rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}

.nav-tel {
  color: var(--color-primary) !important;
  font-weight: 700 !important;
}

/* ── Hero（首页大图） ── */
.hero {
  padding: 6rem 0 4.5rem;
  background:
    linear-gradient(135deg, rgba(13,21,31,0.82) 0%, rgba(22,33,46,0.72) 55%, rgba(35,56,77,0.66) 100%),
    url("../images/site/hero-bg.jpg") center / cover no-repeat;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(135deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: .5;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 3rem;
}

.hero-content { max-width: 46rem; }

.hero-badge {
  display: inline-block;
  margin: 0 0 1.5rem;
  padding: 0.35rem 1rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: #d9b877;
  background: rgba(200, 155, 60, 0.2);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.25;
  margin: 0 0 1.5rem;
  color: #fff;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.hero h1 .accent { color: #d9b877; }

.hero-lead {
  font-size: 1.125rem;
  color: #d9e6ef;
  max-width: 40rem;
  margin: 0 auto 2rem;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  width: 100%;
  max-width: 56rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 2rem;
}

.hero-stats .num {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.125rem);
  font-weight: 700;
  color: #d9b877;
}

.hero-stats .lbl {
  font-size: 0.8125rem;
  color: #c5d6e2;
  margin-top: 0.25rem;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: all var(--transition);
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary { background: var(--color-accent); color: #fff; box-shadow: 0 8px 20px rgba(200, 155, 60, 0.3); }
.btn-primary:hover { background: var(--color-accent-dark); color: #fff; transform: translateY(-2px); }

.btn-outline { border-color: var(--color-border); color: var(--color-primary); background: var(--color-bg-elevated); }
.btn-outline:hover { border-color: #c9c5bc; color: var(--color-primary); background: var(--color-bg-elevated); }

/* hero 内的 ghost 按钮 */
.hero .btn-outline {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
}
.hero .btn-outline:hover { background: rgba(255, 255, 255, 0.22); color: #fff; }

/* ── 信任条 ── */
.trust-bar {
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
}

.trust-bar .container {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1.25rem 0;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.9375rem;
}

.trust-item .ico { font-size: 1.25rem; }

/* ── Sections ── */
.section { padding: 5rem 0; }

.section-alt {
  background: var(--color-bg-muted);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.section-dark {
  background: var(--color-primary);
  color: #fff;
}

.section-dark .section-header h2 { color: #fff; }
.section-dark .section-header p { color: #bcd2e0; }
.section-dark .section-label { color: #d9b877; }

.section-header {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto 3rem;
}

.section-label {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-accent-dark);
}

.section-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.625rem, 3vw, 2.25rem);
  margin: 0 0 0.75rem;
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-header p {
  color: var(--color-muted);
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.75;
}

/* ── Pillar cards（首页板块入口） ── */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.pillar-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-accent);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  text-align: left;
  transition: transform var(--transition), box-shadow var(--transition);
}

.pillar-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

.pillar-card h3 {
  margin: 0 0 0.75rem;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}

.pillar-card p {
  margin: 0 0 1.5rem;
  color: var(--color-muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.pillar-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin-bottom: 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 1.5rem;
  background: var(--color-accent-soft);
}

.pillar-card .btn { width: 100%; }

/* ── Cards ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.625rem;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}

.section-alt .card { background: var(--color-bg-elevated); }

.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }

.card h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-primary);
}

.card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.card-link {
  display: inline-flex;
  align-items: center;
  margin-top: auto;
  padding-top: 1rem;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-accent-dark);
}

.card-link:hover { color: var(--color-accent); }

.card--media { padding: 0; overflow: hidden; }

.card--media .card-thumb {
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, #2c5f8a, #3d83bd);
  overflow: hidden;
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.35);
  font-size: 2.5rem;
}

.card--media .card-thumb img { width: 100%; height: 100%; object-fit: cover; }

.card--media .card-inner { padding: 1.25rem 1.625rem 1.5rem; display: flex; flex-direction: column; flex: 1; }

.card--media .tag { margin-bottom: 0.5rem; }

/* ── Compare 表格 ── */
.compare-wrap { overflow-x: auto; }

table.compare {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  min-width: 680px;
  border: 1px solid var(--color-border);
}

table.compare th, table.compare td {
  padding: 0.9rem 1rem;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9375rem;
}

table.compare thead th { background: var(--color-primary); color: #fff; font-weight: 700; }
table.compare tbody th { background: var(--color-bg-muted); color: var(--color-primary); text-align: left; font-weight: 700; }
table.compare tbody tr:hover { background: var(--color-bg); }
table.compare td .hi { color: var(--color-accent-dark); font-weight: 700; }

/* ── Compare grid（左右对比框） ── */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  max-width: 52rem;
  margin: 0 auto;
}

.compare-box {
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
}

.compare-box h3 {
  margin: 0 0 1rem;
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-primary);
}

.compare-box ul { margin: 0; padding-left: 1.125rem; color: var(--color-muted); font-size: 0.9375rem; }
.compare-box li { margin-bottom: 0.5rem; }
.compare-box.highlight { border-color: var(--color-accent); border-width: 2px; }

/* ── Spec cards（技术参数） ── */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.spec-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.625rem;
}

.section-dark .spec-card {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.15);
}

.spec-card h3 {
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  margin: 0 0 1rem;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-dark .spec-card h3 { color: #d9b877; }

.spec-card dl { display: grid; grid-template-columns: auto 1fr; gap: 0.625rem 0.875rem; margin: 0; }
.spec-card dt { color: var(--color-muted); font-size: 0.875rem; }
.section-dark .spec-card dt { color: #bcd2e0; }
.spec-card dd { text-align: right; font-weight: 700; font-size: 0.9375rem; margin: 0; color: var(--color-text); }
.section-dark .spec-card dd { color: #fff; }

/* ── FAQ ── */
.faq-list {
  max-width: 42rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-elevated);
}

.faq-item {
  padding: 1.375rem 1.5rem;
  border-bottom: 1px solid var(--color-border-light);
  transition: background var(--transition);
}

.faq-item:last-child { border-bottom: none; }
.faq-item:hover { background: var(--color-bg); }
.section-alt .faq-list { background: var(--color-bg-elevated); }

.faq-item h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
}

.faq-item p { margin: 0; color: var(--color-muted); font-size: 0.9375rem; line-height: 1.75; }

/* ── Page hero（内页头部） ── */
.page-hero {
  padding: 3.5rem 0 2.75rem;
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border-light);
}

.page-hero h1 {
  margin: 0 0 0.75rem;
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.01em;
  max-width: 42rem;
}

.page-hero > .container > p:last-child,
.page-hero p.hero-sub {
  margin: 0;
  font-size: 1.0625rem;
  color: var(--color-muted);
  max-width: 42rem;
  line-height: 1.8;
}

.breadcrumb { font-size: 0.8125rem; color: var(--color-muted); margin-bottom: 1rem; }
.breadcrumb a { color: var(--color-muted); }
.breadcrumb a:hover { color: var(--color-primary); }

.product-cta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  align-items: center;
  margin-top: 1.5rem;
}

.page-content { padding: 3rem 0 5rem; }

.page-content h2 {
  margin: 2.5rem 0 1rem;
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-primary);
  padding-left: 0.75rem;
  border-left: 4px solid var(--color-accent);
}

.page-content h2:first-child { margin-top: 0; }

.page-content h3 { font-size: 1.125rem; color: var(--color-primary); margin: 1.75rem 0 0.625rem; }

.page-content p { margin: 0 0 1rem; color: var(--color-text-secondary); max-width: 44rem; }
.page-content ul, .page-content ol { margin: 0 0 1rem; padding-left: 1.375rem; color: var(--color-text-secondary); max-width: 44rem; }
.page-content li { margin-bottom: 0.5rem; }
.page-content strong { color: var(--color-accent-dark); }

.page-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9375rem;
}
.page-content th, .page-content td { border: 1px solid var(--color-border); padding: 0.75rem; text-align: center; }
.page-content th { background: var(--color-primary); color: #fff; }
.page-content tbody th { background: var(--color-bg-muted); color: var(--color-primary); }

/* tip / lead 块 */
.lead-box {
  font-size: 1.0625rem;
  color: var(--color-text);
  background: var(--color-bg-muted);
  border-left: 4px solid var(--color-accent);
  padding: 1rem 1.25rem;
  border-radius: 0 8px 8px 0;
  margin: 0 0 1.75rem;
  max-width: 44rem;
}

.tip {
  background: #fff8e8;
  border: 1px solid #f0dca8;
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  font-size: 0.9375rem;
  max-width: 44rem;
}

/* ── Stats ── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin: 1.75rem 0;
}

.stat {
  text-align: center;
  padding: 1.5rem 1rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.stat strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.stat span { font-size: 0.8125rem; color: var(--color-muted); }

/* ── Tags ── */
.tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.625rem;
}

/* ── CTA 块 ── */
.cta-box {
  background: linear-gradient(135deg, #16212e, #34506e);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  text-align: center;
  margin: 2.5rem 0;
  max-width: 44rem;
}

.cta-box h3 { color: #d9b877; font-family: var(--font-serif); font-size: 1.375rem; margin: 0 0 0.625rem; }
.cta-box p { color: #d9e6ef; margin: 0 0 1.25rem; max-width: none; }
.cta-box .btn-primary { background: var(--color-accent); }

/* ── Related ── */
.related-links {
  margin-top: 2.5rem;
  padding: 1.5rem 1.75rem;
  background: var(--color-bg-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  max-width: 44rem;
}

.related-links h2 { margin: 0 0 0.75rem; font-size: 1rem; font-weight: 700; color: var(--color-primary); border: none; padding: 0; }
.related-links p { margin: 0; max-width: none; }

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.contact-card {
  padding: 1.5rem 1.75rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.contact-card h2 { margin: 0 0 0.5rem; font-size: 1rem; font-weight: 700; color: var(--color-primary); border: none; padding: 0; }

.store-card .badge {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.8125rem;
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
}

.store-card .tel { display: block; font-size: 1.25rem; font-weight: 800; color: var(--color-primary); margin-top: 0.5rem; }

/* ── Footer ── */
.site-footer {
  background: var(--color-primary-dark);
  color: #9fbace;
  padding: 3.5rem 0 0;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  padding-bottom: 2.5rem;
}

.footer-grid strong { display: block; color: #fff; margin-bottom: 0.625rem; font-size: 0.9375rem; font-weight: 700; }
.footer-grid p { margin: 0 0 0.5rem; font-size: 0.875rem; line-height: 1.75; color: #9fbace; }
.footer-grid a { display: block; color: #9fbace; margin-bottom: 0.5rem; }
.footer-grid a:hover { color: var(--color-accent); }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.25rem 0;
  text-align: center;
  font-size: 0.8125rem;
  color: #6d8aa0;
  line-height: 1.9;
}

.footer-bottom a { color: #6d8aa0; }
.footer-bottom a:hover { color: var(--color-accent); }

/* ── 悬浮咨询 ── */
.float-tel {
  position: fixed;
  right: 20px;
  bottom: 24px;
  z-index: 90;
  background: var(--color-accent);
  color: #fff;
  padding: 0.875rem 1.375rem;
  border-radius: var(--radius-full);
  font-weight: 800;
  box-shadow: 0 8px 24px rgba(200, 155, 60, 0.45);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.float-tel:hover { background: var(--color-accent-dark); color: #fff; }

/* ── Mobile ── */
@media (max-width: 980px) {
  .pillar-grid, .spec-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .header-inner { position: relative; }

  .site-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem 1rem 1rem;
    box-shadow: var(--shadow);
  }

  .site-nav.open { display: block; }
  .site-nav > ul { flex-direction: column; align-items: stretch; }

  .site-nav .sub-menu {
    position: static;
    box-shadow: none;
    border: none;
    padding: 0 0 0 0.75rem !important;
    display: none;
    background: var(--color-bg-muted);
    margin-top: 0.25rem;
    border-radius: var(--radius-sm);
  }

  .site-nav .sub-menu::before { display: none; }
  .has-sub.open > .sub-menu { display: flex; }
}

@media (max-width: 768px) {
  .section { padding: 3.5rem 0; }
  .pillar-grid, .spec-grid, .compare-grid, .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .screenshot-gallery--2, .screenshot-gallery--3 { grid-template-columns: 1fr; }
  .lightbox { padding: 0.75rem; }
  .trust-bar .container { gap: 0.75rem; }
  .trust-item { font-size: 0.8125rem; }
}


/* ===================================================================
   高级感增强层 v2 · 丝滑动效 + 精致细节（沿用品牌色：深海蓝 + 金）
   =================================================================== */
:root {
  --ease-silk: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow-lg: 0 24px 60px rgba(10, 61, 98, 0.14);
}
* { -webkit-tap-highlight-color: transparent; }

/* ── 顶栏：滚动后玻璃通透 + 细阴影 ── */
.site-header { transition: background 0.4s var(--ease-silk), box-shadow 0.4s var(--ease-silk), border-color 0.4s var(--ease-silk); }
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.85);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  backdrop-filter: saturate(180%) blur(16px);
  box-shadow: 0 1px 0 rgba(10, 61, 98, 0.06), 0 8px 24px rgba(10, 61, 98, 0.05);
}

/* ── 滚动淡入 ── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease-silk), transform 0.7s var(--ease-silk); will-change: opacity, transform; }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-delay { transition-delay: 0.09s; }
.reveal-delay-2 { transition-delay: 0.18s; }

/* ── section-label：品牌金小圆点 + 大写字距（杂志感） ── */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 600;
}
.section-label::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

/* ── 卡片：丝滑上浮 + 金色流光描边 ── */
.card, .pillar-card, .compare-box, .contact-card, .stat {
  transition: transform 0.45s var(--ease-silk), box-shadow 0.45s var(--ease-silk), border-color 0.45s var(--ease-silk);
}
.card, .pillar-card { position: relative; }
.card::after, .pillar-card::after {
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.45s var(--ease-silk);
  pointer-events: none;
}
.card:hover, .pillar-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.card:hover::after, .pillar-card:hover::after { opacity: 1; }
.contact-card:hover, .compare-box:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

/* ── 卡片链接箭头微交互 ── */
.card-link { transition: color var(--transition), gap 0.3s var(--ease-silk); gap: 0.3em; display: inline-flex; align-items: center; }
.card-link:hover { gap: 0.55em; }

/* ── 按钮：更顺滑 + 上浮，主按钮金色光晕 ── */
.btn { transition: transform 0.25s var(--ease-silk), box-shadow 0.25s var(--ease-silk), background 0.25s var(--ease-silk), color 0.25s var(--ease-silk); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(10, 61, 98, 0.28); }
.btn-outline:hover { transform: translateY(-2px); }

/* ── Hero：柔和品牌色光晕氛围 ── */
.hero { position: relative; overflow: hidden; }
.hero::before {
  content: "";
  position: absolute; inset: 0; z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(48% 60% at 84% 8%, rgba(184, 147, 90, 0.16) 0%, transparent 60%),
    radial-gradient(50% 65% at 6% 92%, rgba(120, 150, 190, 0.12) 0%, transparent 60%);
}
.hero > .container { position: relative; z-index: 1; }
/* 顶部一条品牌渐变高光 */
.hero::after {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 1px; z-index: 1;
  background: linear-gradient(90deg, transparent, rgba(184,147,90,0.6), rgba(255,255,255,0.3), transparent);
}

/* ── hero 数字与强调字：深底上用香槟金，清晰可见 ── */
.hero-stats .num { color: #d9b877; -webkit-text-fill-color: initial; }
.hero h1 .accent { color: #d9b877; -webkit-text-fill-color: initial; }
/* 非深底区域的 section 数字统计用渐变（如 .stat） */
.stat strong {
  background: linear-gradient(120deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}

/* ── 图片 hover 轻微放大（更灵动） ── */
.card--media .card-thumb { overflow: hidden; }
.card--media .card-thumb img, .media-figure img, .screenshot-item img {
  transition: transform 0.7s var(--ease-silk), opacity var(--transition);
}
.card--media:hover .card-thumb img, .media-figure:hover img, .screenshot-item:hover img { transform: scale(1.05); }

/* ── 信任条图标点 + section 更大留白 ── */
.section { padding: 5.5rem 0; }

/* ── 选中态 & 滚动条 ── */
::selection { background: rgba(200, 155, 60, 0.22); color: var(--color-primary-dark); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .card, .pillar-card, .btn { transition: none !important; }
}


/* ── 去 emoji 后的图标/圆点适配 ── */
.pillar-icon { color: var(--color-primary); background: linear-gradient(135deg, var(--color-primary-soft), var(--color-accent-soft)); }
.pillar-icon svg { display: block; }
/* 信任条：品牌金小圆点替代 emoji */
.trust-item .ico {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-accent);
  display: inline-block; font-size: 0;
  flex-shrink: 0;
}
.trust-item { display: inline-flex; align-items: center; gap: 0.55rem; }
/* 悬浮咨询按钮的 ☎ 用纯文字前缀即可，去符号也可保留 */


/* ===================================================================
   高级感精修 v3 · Hero 实拍背景 + 徽章玻璃感 + 数据金竖线
   =================================================================== */
/* Hero 徽章：通透描边玻璃感（替代实心金胶囊） */
.hero-badge {
  color: #e6c98a !important;
  background: rgba(255,255,255,0.06) !important;
  border: 1px solid rgba(217,184,119,0.45) !important;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  letter-spacing: 0.08em !important;
}
/* Hero 正文更亮一点，深底上更清晰 */
.hero-lead { color: #e3ebf2 !important; }

/* Hero 数据区：香槟金细竖线分隔 */
.hero-stats { gap: 0 !important; }
.hero-stats > div { position: relative; padding: 0 1.25rem; }
.hero-stats > div + div::before {
  content: "";
  position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 1px; height: 2.6rem;
  background: linear-gradient(180deg, transparent, rgba(217,184,119,0.4), transparent);
}
.hero-stats .num { letter-spacing: 0.01em; }

/* 主按钮金色阴影收敛，更沉稳；hover 更跟手 */
.btn-primary { box-shadow: 0 6px 18px rgba(184,147,90,0.28) !important; letter-spacing: 0.02em; }
.btn-primary:hover { box-shadow: 0 10px 26px rgba(184,147,90,0.36) !important; }

/* Hero 内容进场轻微上浮（首屏不依赖滚动观察器） */
.hero-content { animation: heroRise 0.9s var(--ease-silk) both; }
@keyframes heroRise { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .hero-content { animation: none; } }


/* ===================================================================
   产品品类图标导航 v4（借鉴美沃观感，纯 HTML+SVG 真链接，GEO 友好）
   =================================================================== */
.cat-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.9rem;
  margin: 0 0 2.75rem;
}
.cat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding: 1.4rem 1rem 1.15rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-align: center;
  color: var(--color-primary);
  transition: transform 0.35s var(--ease-silk), box-shadow 0.35s var(--ease-silk), border-color 0.35s var(--ease-silk);
}
.cat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--color-accent);
  color: var(--color-primary);
}
.cat-ico {
  display: grid; place-items: center;
  width: 3.2rem; height: 3.2rem;
  border-radius: 50%;
  color: var(--color-primary);
  background: linear-gradient(135deg, var(--color-primary-soft), var(--color-accent-soft));
  transition: color 0.35s var(--ease-silk);
}
.cat-item:hover .cat-ico { color: var(--color-accent-dark); }
.cat-name { font-weight: 700; font-size: 1rem; color: var(--color-primary); }
.cat-sub { font-size: 0.78rem; color: var(--color-muted); letter-spacing: 0.01em; }

/* 产品卡英文副标（借鉴美沃格调，克制） */
.card-en {
  margin: 0.1rem 0 0.5rem !important;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--color-accent-dark);
  font-weight: 600;
}

@media (max-width: 760px) {
  .cat-nav { grid-template-columns: repeat(2, 1fr); }
}


/* ===================================================================
   Hero 排版精修 v5 · 左对齐（文字靠左，右侧风景露出，高端家居布局）
   =================================================================== */
.hero-inner {
  align-items: flex-start !important;
  text-align: left !important;
  gap: 2.25rem !important;
}
.hero-content { max-width: 40rem !important; }

/* 标题：收紧行高、字距，避免居中换行的散乱 */
.hero h1 {
  line-height: 1.28 !important;
  letter-spacing: 0.005em !important;
  margin-bottom: 1.25rem !important;
  text-shadow: 0 2px 20px rgba(0,0,0,0.25);
}
.hero-lead {
  margin: 0 0 2rem !important;
  max-width: 34rem !important;
  text-shadow: 0 1px 12px rgba(0,0,0,0.3);
}
.hero-actions { justify-content: flex-start !important; }

/* 徽章左对齐 */
.hero-badge { margin-left: 0 !important; }

/* 数据区：左对齐、占位收窄，竖线分隔保留 */
.hero-stats {
  max-width: 46rem !important;
  justify-items: start;
}
.hero-stats > div { padding: 0 1.75rem 0 0 !important; text-align: left; }
.hero-stats > div + div { padding-left: 1.75rem !important; }
.hero-stats > div + div::before { left: 0; }
.hero-stats .num { text-shadow: 0 2px 16px rgba(0,0,0,0.25); }

@media (max-width: 900px) {
  .hero-content { max-width: 100% !important; }
  .hero-stats { max-width: 100% !important; }
}


/* ===================================================================
   产品下拉 · 图标横排 Mega 菜单 v6（借鉴美沃，纯 HTML 真链接，GEO 友好）
   =================================================================== */
.site-nav .sub-menu--mega {
  flex-direction: row !important;
  flex-wrap: nowrap;
  left: 50%;
  transform: translateX(-50%);
  min-width: 0;
  padding: 1rem 0.75rem;
  gap: 0.25rem;
}
.site-nav .sub-menu--mega li { width: auto; }
.site-nav .sub-menu--mega a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  width: 108px;
  padding: 0.85rem 0.5rem;
  text-align: center;
  border-radius: var(--radius-sm);
  white-space: normal;
}
.site-nav .sub-menu--mega a:hover { background: var(--color-bg-muted); }
.sub-menu--mega .mega-ico {
  display: grid; place-items: center;
  width: 3rem; height: 3rem;
  border-radius: 50%;
  color: var(--color-primary);
  background: linear-gradient(135deg, var(--color-primary-soft), var(--color-accent-soft));
  transition: color var(--transition);
}
.sub-menu--mega a:hover .mega-ico { color: var(--color-accent-dark); }
.sub-menu--mega .mega-txt { display: flex; flex-direction: column; line-height: 1.3; }
.sub-menu--mega .mega-txt b { font-size: 0.82rem; font-weight: 700; color: var(--color-text); }
.sub-menu--mega .mega-txt em { font-style: normal; font-size: 0.7rem; color: var(--color-muted); }

/* 移动端：回归竖排简洁列表 */
@media (max-width: 900px) {
  .site-nav .sub-menu--mega {
    flex-direction: column !important;
    transform: none;
    left: 0;
    padding: 0.25rem 0;
  }
  .site-nav .sub-menu--mega a { flex-direction: row; width: 100%; justify-content: flex-start; gap: 0.75rem; text-align: left; padding: 0.6rem 0.75rem; }
  .sub-menu--mega .mega-ico { width: 2rem; height: 2rem; }
  .sub-menu--mega .mega-ico svg { width: 18px; height: 18px; }
}


/* ===================================================================
   发展历程时间线（about 页）
   =================================================================== */
.timeline {
  list-style: none;
  margin: 1.75rem 0 2rem;
  padding: 0 0 0 1.75rem;
  position: relative;
  max-width: 44rem;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 5px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent), var(--color-border));
}
.timeline-item {
  position: relative;
  padding: 0 0 1.75rem 1.5rem;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -1.75rem; top: 4px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-soft);
}
.timeline-year {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-accent-dark);
  margin-bottom: 0.35rem;
  letter-spacing: 0.02em;
}
.timeline-body h3 {
  margin: 0.15rem 0 0.4rem;
  font-size: 1.0625rem;
  color: var(--color-primary);
}
.timeline-body p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

/* ── 分页控件 ── */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin: 2rem 0 1rem;
  flex-wrap: wrap;
}
.pagination__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  height: 2.25rem;
  padding: 0 0.75rem;
  border: 1px solid var(--color-border-light);
  border-radius: 6px;
  background: var(--color-white);
  color: var(--color-text);
  font-size: 0.875rem;
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s;
  line-height: 1;
}
.pagination__btn:hover {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
}
.pagination__btn--active {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
  cursor: default;
  pointer-events: none;
}
.pagination__btn--active:hover {
  background: var(--color-accent);
}
.pagination__prev,
.pagination__next {
  font-weight: 500;
}