/* =========================================================
   河北迈哈瑞机电科技有限公司  |  main.css
   ========================================================= */

:root {
  --navy: #0d2f4f;
  --navy-2: #164a75;
  --blue: #1668b3;
  --blue-light: #e8f1fa;
  --accent: #ff7a18;
  --accent-dark: #e0630a;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e3e8ef;
  --bg: #f5f7fa;
  --white: #ffffff;
  --radius: 8px;
  --shadow: 0 2px 16px rgba(13, 47, 79, .08);
  --shadow-lg: 0 12px 40px rgba(13, 47, 79, .14);
  --maxw: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans CN", Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color .2s, background .2s, border-color .2s; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
table { border-collapse: collapse; width: 100%; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: 4px; font-size: 15px; font-weight: 500;
  border: 1px solid transparent; cursor: pointer; transition: all .25s;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(255,122,24,.3); }
.btn-outline { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.5); }
.btn-outline:hover { background: #fff; color: var(--navy); }
.btn-blue { background: var(--blue); color: #fff; }
.btn-blue:hover { background: var(--navy-2); }
.btn-sm { padding: 8px 18px; font-size: 14px; }

/* ---------- 顶部条 ---------- */
.topbar {
  background: var(--navy); color: rgba(255,255,255,.78);
  font-size: 13px; padding: 8px 0;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.topbar span { display: inline-flex; align-items: center; gap: 6px; }
.topbar svg { flex: none; }
.topbar-right a { margin-left: 18px; opacity: .85; }
.topbar-right a:hover { opacity: 1; color: var(--accent); }

/* ---------- 导航 ---------- */
.header {
  position: sticky; top: 0; z-index: 100;
  background: #fff; border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 6px rgba(13,47,79,.04);
}
.header .container { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }

.logo { display: flex; align-items: center; gap: 12px; flex: none; }
.logo-mark {
  width: auto; height: 44px; border-radius: 6px; flex: none;
  object-fit: contain; background: #fff;
}
.logo-text strong { display: block; font-size: 18px; color: var(--navy); letter-spacing: 1px; line-height: 1.3; }
.logo-text span { display: block; font-size: 11px; color: var(--muted); letter-spacing: 2.5px; text-transform: uppercase; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav > li { position: relative; }
.nav > li > a {
  display: block; padding: 10px 16px; font-size: 15px; color: var(--text);
  border-bottom: 2px solid transparent; font-weight: 500;
}
.nav > li > a:hover { color: var(--blue); }
.nav > li.active > a { color: var(--blue); border-bottom-color: var(--accent); }

.nav .sub {
  position: absolute; top: 100%; left: 0; min-width: 190px;
  background: #fff; border: 1px solid var(--line); border-top: 2px solid var(--accent);
  box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all .22s; padding: 6px 0;
}
.nav > li:hover .sub { opacity: 1; visibility: visible; transform: translateY(0); }
.nav .sub a { display: block; padding: 9px 18px; font-size: 14px; color: var(--text); }
.nav .sub a:hover { background: var(--blue-light); color: var(--blue); padding-left: 24px; }

.header-cta { display: flex; align-items: center; gap: 14px; flex: none; }
.header-tel { font-size: 20px; font-weight: 700; color: var(--accent); letter-spacing: .5px; }
.header-tel small { display: block; font-size: 11px; color: var(--muted); font-weight: 400; letter-spacing: 0; }

.nav-toggle { display: none; width: 40px; height: 40px; border: 1px solid var(--line); background: #fff; border-radius: 4px; cursor: pointer; }
.nav-toggle i { display: block; width: 18px; height: 2px; background: var(--navy); margin: 4px auto; }

/* ---------- 页面横幅 ---------- */
.page-banner {
  background: linear-gradient(120deg, var(--navy) 0%, var(--navy-2) 55%, var(--blue) 100%);
  color: #fff; padding: 58px 0; position: relative; overflow: hidden;
}
.page-banner::after {
  content: ""; position: absolute; right: -60px; top: -60px; width: 320px; height: 320px;
  border: 40px solid rgba(255,255,255,.05); border-radius: 50%;
}
.page-banner h1 { font-size: 32px; font-weight: 700; letter-spacing: 1px; }
.page-banner .crumb { font-size: 13px; color: rgba(255,255,255,.7); margin-bottom: 8px; }
.page-banner .crumb a:hover { color: var(--accent); }
.page-banner p { color: rgba(255,255,255,.8); max-width: 720px; margin-top: 10px; font-size: 15px; }

/* ---------- 区块 ---------- */
.section { padding: 68px 0; }
.section-gray { background: var(--bg); }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 44px; }
.section-head .tag { color: var(--accent); font-size: 13px; letter-spacing: 3px; font-weight: 600; text-transform: uppercase; }
.section-head h2 { font-size: 28px; color: var(--navy); margin: 10px 0 12px; letter-spacing: 1px; }
.section-head h2::after {
  content: ""; display: block; width: 48px; height: 3px; background: var(--accent);
  margin: 14px auto 0;
}
.section-head p { color: var(--muted); font-size: 15px; }

/* ---------- 首页 Hero（全幅 Banner：火电厂图置于文字后方） ---------- */
.hero {
  position: relative; min-height: 640px; display: flex; align-items: center;
  background: #0a2740; color: #fff; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image: url('../img/power-plant.jpg');
  background-size: cover; background-position: center;
  transform: scale(1.03);
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(9,34,56,.97) 0%, rgba(13,47,79,.9) 42%, rgba(22,104,179,.5) 100%);
}
.hero .container { position: relative; z-index: 2; padding: 92px 20px; }
.hero-content { max-width: 780px; }
.hero-tag {
  display: inline-block; padding: 5px 14px; border: 1px solid rgba(255,255,255,.4);
  border-radius: 30px; font-size: 13px; letter-spacing: 2px; margin-bottom: 22px;
  background: rgba(255,255,255,.08); backdrop-filter: blur(4px);
}
.hero h1 { font-size: 48px; line-height: 1.22; font-weight: 700; letter-spacing: 2px; text-shadow: 0 2px 18px rgba(0,0,0,.28); }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lead { font-size: 16px; line-height: 2; color: rgba(255,255,255,.94); margin: 20px 0 32px; max-width: 780px; text-shadow: 0 1px 10px rgba(0,0,0,.35); }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 46px; margin-top: 52px; padding-top: 30px; border-top: 1px solid rgba(255,255,255,.18); flex-wrap: wrap; }
.hero-stats div strong { display: block; font-size: 32px; color: var(--accent); font-weight: 700; line-height: 1.2; }
.hero-stats div span { font-size: 13px; color: rgba(255,255,255,.78); }

/* ---------- 优势卡片 ---------- */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

.adv-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 26px; transition: all .28s; position: relative; overflow: hidden;
}
.adv-card::before {
  content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 0; background: var(--accent); transition: width .3s;
}
.adv-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.adv-card:hover::before { width: 100%; }
.adv-card .ico {
  width: 54px; height: 54px; border-radius: 10px; background: var(--blue-light);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.adv-card h3 { font-size: 17px; color: var(--navy); margin-bottom: 10px; }
.adv-card p { font-size: 14px; color: var(--muted); line-height: 1.8; }

/* ---------- 产品筛选 ---------- */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin: -14px 0 36px; }
.filter-btn {
  padding: 9px 24px; border: 1px solid var(--line); background: #fff; border-radius: 30px;
  font-size: 14px; cursor: pointer; color: var(--text); font-family: inherit; transition: all .22s;
}
.filter-btn:hover { border-color: var(--blue); color: var(--blue); }
.filter-btn.on { background: var(--blue); color: #fff; border-color: var(--blue); }

/* ---------- 产品卡片 ---------- */
.prod-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: all .28s; display: flex; flex-direction: column;
}
.prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.prod-img {
  height: 210px; background: #fff;
  display: flex; align-items: center; justify-content: center; position: relative;
  border-bottom: 1px solid var(--line);
}
.prod-img img {
  width: 100%; height: 100%; object-fit: contain;
  padding: 18px; transition: transform .35s ease;
}
.prod-card:hover .prod-img img { transform: scale(1.04); }
.prod-img .badge {
  position: absolute; top: 14px; left: 14px; background: var(--accent); color: #fff;
  font-size: 12px; padding: 3px 10px; border-radius: 3px;
}
.prod-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.prod-body h3 { font-size: 17px; color: var(--navy); margin-bottom: 6px; }
.prod-body .model { font-size: 12px; color: var(--accent); letter-spacing: 1px; margin-bottom: 12px; }
.prod-body p { font-size: 14px; color: var(--muted); margin-bottom: 16px; flex: 1; }
.prod-body ul { margin-bottom: 18px; }
.prod-body ul li {
  font-size: 13px; color: var(--text); padding-left: 18px; position: relative; margin-bottom: 6px;
}
.prod-body ul li::before {
  content: ""; position: absolute; left: 0; top: 10px; width: 6px; height: 6px;
  background: var(--blue); border-radius: 50%;
}

/* ---------- 表格 ---------- */
.table-wrap { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: auto; }
table.spec { font-size: 14px; min-width: 640px; }
table.spec th { background: var(--navy); color: #fff; font-weight: 500; padding: 14px 18px; text-align: left; white-space: nowrap; }
table.spec td { padding: 13px 18px; border-bottom: 1px solid var(--line); color: var(--text); }
table.spec tbody tr:nth-child(even) { background: #fafbfc; }
table.spec tbody tr:hover { background: var(--blue-light); }
table.spec td:first-child { font-weight: 500; color: var(--navy); }

/* ---------- 应用领域 ---------- */
.app-item {
  position: relative; border-radius: var(--radius); overflow: hidden; height: 190px;
  background: var(--navy); display: flex; align-items: flex-end; padding: 22px;
}
.app-item .app-bg { position: absolute; inset: 0; background-size: cover; opacity: .32; transition: transform .5s; }
.app-item:hover .app-bg { transform: scale(1.08); }
.app-item .app-txt { position: relative; color: #fff; }
.app-item .app-txt h4 { font-size: 17px; margin-bottom: 4px; }
.app-item .app-txt p { font-size: 13px; color: rgba(255,255,255,.8); line-height: 1.6; }

/* ---------- 案例 ---------- */
.case-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: all .28s; display: flex; flex-direction: column; }
.case-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: var(--blue); }
.case-img { position: relative; background: #0d2f4f; overflow: hidden; aspect-ratio: 16/8; }
.case-img svg { width: 100%; height: 100%; display: block; }
.case-badges { position: absolute; left: 14px; bottom: 14px; right: 14px; display: flex; gap: 8px; justify-content: space-between; }
.case-badges .cb-cap { background: rgba(255,255,255,.95); color: var(--navy); font-size: 12px; font-weight: 700; padding: 5px 12px; border-radius: 3px; box-shadow: 0 2px 6px rgba(0,0,0,.2); }
.case-badges .cb-loc { background: rgba(13,47,79,.85); color: #fff; font-size: 11px; padding: 4px 10px; border-radius: 3px; }
.case-body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
.case-body h3 { font-size: 16px; color: var(--navy); margin-bottom: 10px; line-height: 1.5; min-height: 48px; }
.case-body p { font-size: 13px; color: var(--muted); margin-bottom: 14px; flex: 1; }
.case-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 14px; border-top: 1px dashed var(--line); padding-top: 12px; }
.case-meta div { font-size: 11px; color: var(--muted); display: flex; flex-direction: column; }
.case-meta div span { margin-bottom: 2px; }
.case-meta div b { font-size: 13px; color: var(--blue); font-weight: 600; }

/* ---------- 首页背景虚化火电厂图 ---------- */
body.home { background: #eef2f6; }
.home-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background: url('../img/power-plant.jpg') center / cover no-repeat;
  filter: blur(10px) brightness(1.04);
  opacity: .10;
}
body.home .topbar,
body.home main,
body.home .footer { position: relative; z-index: 1; }
body.home .section { background: rgba(255,255,255,.72); }
body.home .section-gray { background: rgba(245,247,250,.78); }

/* ---------- AI 摘要块（便于搜索引擎与大模型抓取核心事实） ---------- */
.ai-summary {
  background: #fff; border-bottom: 1px solid var(--line);
  padding: 22px 0; margin-top: -1px;
}
.ai-summary .container {
  border-left: 4px solid var(--accent); padding-left: 20px;
}
.ai-summary p { font-size: 14.5px; line-height: 1.95; color: #374151; }
.ai-summary b { color: var(--navy); font-weight: 600; }

@media (max-width: 980px) {
  .hero { min-height: 520px; }
}

/* ---------- 产品图注 ---------- */
.prod-img-cap {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: rgba(13,47,79,.88); color: #fff; font-size: 12px;
  padding: 6px 12px; text-align: center;
}
.prod-img { position: relative; overflow: hidden; }
.prod-img > svg { width: 100%; height: 100%; display: block; }

/* ---------- 产品中心 · 图文详情 ---------- */
.prod-detail { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
.prod-photo {
  background: linear-gradient(160deg, #f4f7fb 0%, #e7eef6 100%);
  border: 1px solid var(--line); border-radius: 14px; padding: 26px;
  box-shadow: var(--shadow); position: relative;
}
.prod-photo .photo-badge {
  position: absolute; top: 16px; left: 16px; z-index: 2;
  background: var(--accent); color: #fff; font-size: 12px; font-weight: 600;
  letter-spacing: 1px; padding: 4px 12px; border-radius: 4px;
}
.prod-photo .photo-frame {
  background: #fff; border-radius: 10px; overflow: hidden;
  box-shadow: 0 8px 28px rgba(13,47,79,.10);
}
.prod-photo .photo-frame img { width: 100%; height: 270px; object-fit: contain; padding: 18px; display: block; }

.prod-info .prod-tag {
  display: inline-block; background: var(--blue-light); color: var(--blue);
  font-size: 12px; font-weight: 600; letter-spacing: 2px; padding: 5px 14px;
  border-radius: 3px; margin-bottom: 14px;
}
.prod-info h2 {
  font-size: 27px; color: var(--navy); margin-bottom: 16px; line-height: 1.4;
  padding-bottom: 14px; border-bottom: 2px solid var(--line); position: relative;
}
.prod-info h2::after {
  content: ""; position: absolute; left: 0; bottom: -2px; width: 66px; height: 2px; background: var(--accent);
}
.prod-info .lead { color: var(--muted); line-height: 1.9; margin-bottom: 22px; font-size: 14.5px; }

.spec-hl { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 22px; }
.spec-hl .hl {
  background: var(--blue-light); border: 1px solid #d9e6f3; border-radius: 8px;
  padding: 13px 16px; transition: all .22s;
}
.spec-hl .hl:hover { border-color: var(--blue); transform: translateY(-2px); box-shadow: var(--shadow); }
.spec-hl .hl b { display: block; font-size: 17px; color: var(--navy); line-height: 1.35; }
.spec-hl .hl span { font-size: 12px; color: var(--muted); }

.note {
  background: linear-gradient(135deg, #fff7ee 0%, #fffdf9 100%);
  border: 1px solid #f3ddc3; border-left: 4px solid var(--accent);
  padding: 16px 20px; border-radius: 8px; margin-top: 20px;
  font-size: 13.5px; color: #6b5738; line-height: 1.85;
}
.note b { color: var(--navy); font-weight: 600; }

@media (max-width: 980px) {
  .prod-detail { grid-template-columns: 1fr; gap: 28px; }
  .prod-photo .photo-frame img { height: 220px; }
}

/* ---------- 相关页面内链 ---------- */
.rel-links { background: var(--bg); padding: 40px 0; border-top: 1px solid var(--line); }
.rel-links h2 { font-size: 17px; color: var(--navy); margin-bottom: 16px; padding-left: 12px; border-left: 4px solid var(--accent); }
.rel-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.rel-grid a {
  display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; transition: all .25s;
}
.rel-grid a:hover { border-color: var(--blue); box-shadow: var(--shadow); transform: translateY(-2px); }
.rel-grid b { display: block; font-size: 14px; color: var(--navy); margin-bottom: 4px; }
.rel-grid span { font-size: 12px; color: var(--muted); line-height: 1.6; }

@media (max-width: 900px) { .rel-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .rel-grid { grid-template-columns: 1fr; } }

/* ---------- 业绩筛选 chips ---------- */
.case-filter { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 18px 22px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.filter-label { font-size: 14px; color: var(--muted); font-weight: 500; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border: 1px solid var(--line); border-radius: 30px; background: #fff; cursor: pointer; font-size: 14px; color: var(--text); transition: all .2s; }
.chip i { font-style: normal; font-size: 11px; color: var(--muted); }
.chip:hover { border-color: var(--blue); color: var(--blue); }
.chip.active { background: var(--navy); color: #fff; border-color: var(--navy); }
.chip.active i { color: rgba(255,255,255,.7); }

/* ---------- 项目地图 ---------- */
.map-wrap { display: grid; grid-template-columns: 1fr 200px; gap: 24px; align-items: start; }
.map-cn {
  position: relative; height: 460px;
  background:
    linear-gradient(135deg, #e8f1fa 0%, #f5fafe 100%);
  border: 1px solid var(--line); border-radius: var(--radius);
  background-image:
    linear-gradient(rgba(13,47,79,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13,47,79,.05) 1px, transparent 1px);
  background-size: 32px 32px;
  overflow: hidden;
}
.map-cn::before {
  content: "中国项目分布"; position: absolute; top: 14px; left: 14px;
  background: rgba(13,47,79,.85); color: #fff; padding: 6px 14px; border-radius: 4px; font-size: 12px;
}
.map-cn::after {
  content: ""; position: absolute; right: 20px; bottom: 20px; width: 60px; height: 60px;
  background: radial-gradient(circle, rgba(22,104,179,.15) 0%, transparent 70%); border-radius: 50%;
}
.map-dot {
  position: absolute; transform: translate(-50%, -50%);
  display: flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,.95); padding: 4px 10px 4px 6px;
  border-radius: 18px; font-size: 11px; color: var(--text);
  box-shadow: 0 2px 6px rgba(0,0,0,.15); border: 1px solid var(--line);
  white-space: nowrap;
}
.map-dot i {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--c, var(--blue));
  box-shadow: 0 0 0 3px rgba(22,104,179,.18);
  animation: pulse 2.2s infinite;
}
.map-dot span { font-weight: 500; }
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(22,104,179,.18); }
  50% { box-shadow: 0 0 0 6px rgba(22,104,179,.08); }
}
.map-legend {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 20px; height: fit-content;
}
.map-legend h4 { font-size: 14px; color: var(--navy); margin-bottom: 12px; }
.map-legend div { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text); padding: 6px 0; border-bottom: 1px dashed var(--line); }
.map-legend div:last-child { border-bottom: none; }
.map-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 50%; }

/* ---------- 仿真 / FAQ / 能力 ---------- */
.spec-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: all .25s; }
.spec-card:hover { border-color: var(--blue); box-shadow: var(--shadow); }
.spec-card h3 { font-size: 18px; color: var(--navy); margin-bottom: 14px; padding-bottom: 10px; border-bottom: 2px solid var(--accent); }
.spec-card ul { margin: 14px 0; }
.spec-card li { font-size: 13.5px; color: var(--text); padding: 7px 0; padding-left: 22px; position: relative; border-bottom: 1px dashed var(--line); }
.spec-card li:last-child { border-bottom: none; }
.spec-card li::before { content: "▸"; position: absolute; left: 0; color: var(--accent); font-size: 14px; }

.sim-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; transition: all .25s; position: relative; }
.sim-card:hover { border-color: var(--blue); transform: translateY(-3px); box-shadow: var(--shadow); }
.sim-card .sim-num { font-size: 30px; font-weight: 700; color: var(--accent); margin-bottom: 10px; opacity: .85; }
.sim-card h4 { font-size: 16px; color: var(--navy); margin-bottom: 8px; }
.sim-card p { font-size: 13px; color: var(--muted); line-height: 1.7; }

.sim-tool { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 28px; }
.sim-row { display: flex; flex-wrap: wrap; gap: 22px; align-items: center; }
.sim-row label { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.sim-row input { width: 80px; padding: 7px 10px; border: 1px solid var(--line); border-radius: 4px; font-size: 14px; }
.sim-result { font-size: 13px; color: var(--text); }
.sim-result b { font-size: 16px; color: var(--accent); padding: 0 4px; }

.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; transition: all .25s; }
.faq-item:hover { border-color: var(--blue); }
.faq-item summary { padding: 16px 22px; font-size: 15px; color: var(--navy); font-weight: 500; cursor: pointer; position: relative; padding-right: 50px; }
.faq-item summary::after { content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); font-size: 22px; color: var(--accent); font-weight: 300; transition: transform .2s; }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { padding: 0 22px 18px; color: var(--muted); font-size: 14px; line-height: 1.85; border-top: 1px dashed var(--line); padding-top: 14px; }

.cap-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; position: relative; transition: all .25s; }
.cap-card:hover { border-color: var(--blue); box-shadow: var(--shadow); transform: translateY(-3px); }
.cap-card .cap-no { font-size: 32px; font-weight: 800; color: var(--accent); opacity: .5; line-height: 1; margin-bottom: 8px; }
.cap-card h4 { font-size: 15px; color: var(--navy); margin-bottom: 8px; }
.cap-card p { font-size: 13px; color: var(--muted); }

.prod-step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: all .25s; }
.prod-step:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.prod-step-img { background: #f8fafc; overflow: hidden; }
.prod-step-img svg { width: 100%; height: 100%; display: block; }
.prod-step h4 { font-size: 16px; color: var(--navy); padding: 16px 20px 4px; }
.prod-step p { font-size: 13px; color: var(--muted); padding: 0 20px 18px; }

/* ---------- 时间线 ---------- */
.timeline { position: relative; padding: 20px 0 0; }
.timeline::before { content: ""; position: absolute; left: 90px; top: 30px; bottom: 0; width: 2px; background: var(--line); }
.tl-item { display: grid; grid-template-columns: 90px 1fr; gap: 30px; padding: 18px 0; position: relative; }
.tl-year { font-size: 22px; font-weight: 700; color: var(--accent); text-align: right; padding-right: 24px; position: relative; z-index: 2; }
.tl-item::after { content: ""; position: absolute; left: 86px; top: 30px; width: 12px; height: 12px; border-radius: 50%; background: var(--accent); border: 3px solid #fff; box-shadow: 0 0 0 2px var(--accent); }
.tl-body { padding-left: 20px; border-left: 2px solid var(--line); padding: 6px 0 8px 24px; }
.tl-body h4 { font-size: 17px; color: var(--navy); margin-bottom: 6px; }
.tl-body p { font-size: 13.5px; color: var(--muted); }

.quals { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.qual { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 18px 18px 50px; position: relative; transition: all .25s; }
.qual:hover { border-color: var(--blue); box-shadow: var(--shadow); }
.qual i { position: absolute; left: 18px; top: 50%; transform: translateY(-50%); font-style: normal; font-size: 16px; color: #fff; background: var(--accent); width: 26px; height: 26px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; }
.qual b { display: block; font-size: 14px; color: var(--navy); margin-bottom: 4px; }
.qual span { font-size: 12px; color: var(--muted); }

/* ---------- 联系页 ---------- */
.contact-list { }
.contact-list li { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.contact-list li:last-child { border-bottom: none; }
.contact-list .ci { width: 38px; height: 38px; flex: none; background: var(--blue-light); border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.contact-list b { display: block; font-size: 14px; color: var(--navy); margin-bottom: 4px; }
.contact-list span { font-size: 13px; color: var(--muted); }
.contact-form { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; }
.contact-form label { display: block; margin-bottom: 16px; font-size: 13px; color: var(--text); }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; padding: 11px 14px; border: 1px solid var(--line); border-radius: 4px; font-size: 14px; font-family: inherit; margin-top: 6px; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: none; border-color: var(--blue); }

.map-frame { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.map-frame-inner { border-radius: 6px; overflow: hidden; }

/* ---------- 关于页 ---------- */
.about-lead { font-size: 13px; letter-spacing: 4px; color: var(--accent); font-weight: 600; margin-bottom: 12px; }
.about-meta { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 28px; }
.about-meta div { background: #fff; border: 1px solid var(--line); border-radius: 6px; padding: 14px 12px; text-align: center; }
.about-meta b { display: block; font-size: 19px; color: var(--accent); margin-bottom: 4px; }
.about-meta span { font-size: 12px; color: var(--muted); }

@media (max-width: 900px) {
  .map-wrap { grid-template-columns: 1fr; }
  .map-cn { height: 360px; }
  .quals, .about-meta { grid-template-columns: 1fr 1fr; }
  .timeline::before, .tl-item::after { display: none; }
  .tl-item { grid-template-columns: 1fr; gap: 6px; }
  .tl-year { text-align: left; padding: 0; }
  .tl-body { border-left: none; padding-left: 0; border-top: 2px solid var(--accent); padding-top: 10px; }
}
@media (max-width: 640px) {
  .case-meta { grid-template-columns: 1fr; }
  .case-filter { padding: 14px; }
  .chip { padding: 6px 12px; font-size: 13px; }
  .quals, .about-meta { grid-template-columns: 1fr; }
  .sim-row { gap: 12px; }
  .sim-row input { width: 70px; }
  .timeline::before, .tl-item::after { display: none; }
}

/* ---------- 流程步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.step { text-align: center; position: relative; }
.step .no {
  width: 54px; height: 54px; margin: 0 auto 16px; border-radius: 50%;
  background: #fff; border: 2px solid var(--blue); color: var(--blue);
  display: flex; align-items: center; justify-content: center;
  font-size: 19px; font-weight: 700; position: relative; z-index: 2; transition: all .25s;
}
.step:hover .no { background: var(--blue); color: #fff; }
.step h4 { font-size: 15px; color: var(--navy); margin-bottom: 6px; }
.step p { font-size: 13px; color: var(--muted); }
.step::after {
  content: ""; position: absolute; top: 26px; left: 50%; width: 100%; height: 1px;
  background: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 12px);
}
.step:last-child::after { display: none; }

/* ---------- 新闻 ---------- */
.news-list { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.news-item { display: flex; gap: 22px; padding: 22px 26px; border-bottom: 1px solid var(--line); align-items: center; }
.news-item:last-child { border-bottom: none; }
.news-date { flex: none; width: 66px; text-align: center; background: var(--bg); border-radius: 6px; padding: 8px 0; }
.news-date b { display: block; font-size: 22px; color: var(--navy); line-height: 1.2; }
.news-date span { font-size: 12px; color: var(--muted); }
.news-item h4 { font-size: 16px; color: var(--text); margin-bottom: 5px; }
.news-item h4:hover { color: var(--blue); }
.news-item p { font-size: 13px; color: var(--muted); }

/* ---------- CTA 条 ---------- */
.cta-band {
  background: linear-gradient(100deg, var(--accent) 0%, #ff9a45 100%);
  color: #fff; padding: 46px 0;
}
.cta-band .container { display: flex; align-items: center; justify-content: space-between; gap: 26px; flex-wrap: wrap; }
.cta-band h2 { font-size: 26px; margin-bottom: 6px; }
.cta-band p { font-size: 15px; opacity: .92; }
.cta-band .btn { background: #fff; color: var(--accent); font-weight: 600; }
.cta-band .btn:hover { background: var(--navy); color: #fff; }

/* ---------- 业绩状态标签 ---------- */
.tag-status { display: inline-block; padding: 2px 10px; border-radius: 3px; font-size: 12px; white-space: nowrap; line-height: 1.7; }
.st-done { background: #e6f4ea; color: #1e7e34; }
.st-doing { background: #fff4e5; color: #c26a00; }
.st-bid { background: #e7f0fa; color: #1668b3; }
.st-exp { background: #f3e8fd; color: #6f2dbd; }

/* ---------- 内容页布局 ---------- */
.page-body { padding: 60px 0 70px; }
.layout { display: grid; grid-template-columns: 260px 1fr; gap: 34px; align-items: start; }
.side-nav { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; position: sticky; top: 96px; }
.side-nav h3 { background: var(--navy); color: #fff; padding: 15px 20px; font-size: 16px; font-weight: 500; }
.side-nav a { display: block; padding: 13px 20px; font-size: 14px; border-bottom: 1px solid var(--line); }
.side-nav a:last-child { border-bottom: none; }
.side-nav a:hover, .side-nav a.on { background: var(--blue-light); color: var(--blue); border-left: 3px solid var(--accent); padding-left: 17px; }

.content h2 { font-size: 22px; color: var(--navy); margin: 38px 0 16px; padding-left: 12px; border-left: 4px solid var(--accent); }
.content h2:first-child { margin-top: 0; }
.content h3 { font-size: 17px; color: var(--navy); margin: 24px 0 10px; }
.content p { margin-bottom: 14px; color: #374151; }
.content ul.plain li { padding-left: 20px; position: relative; margin-bottom: 8px; color: #374151; }
.content ul.plain li::before {
  content: ""; position: absolute; left: 4px; top: 12px; width: 6px; height: 6px;
  background: var(--accent); border-radius: 50%;
}
.content .note {
  background: var(--blue-light); border-left: 4px solid var(--blue);
  padding: 16px 20px; border-radius: 0 6px 6px 0; margin: 20px 0; font-size: 14px; color: #1e4b73;
}

/* ---------- 关于页 ---------- */
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 46px; align-items: center; }
.about-img {
  height: 340px; border-radius: var(--radius);
  background: linear-gradient(135deg, #123f66, #1b6fa8);
  display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden;
}
.about-img::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px);
  background-size: 34px 34px;
}
.honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.honor {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 18px; text-align: center; transition: all .25s;
}
.honor:hover { border-color: var(--blue); transform: translateY(-4px); }
.honor b { display: block; font-size: 26px; color: var(--accent); line-height: 1.3; }
.honor span { font-size: 13px; color: var(--muted); }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-card { display: flex; gap: 16px; padding: 20px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 16px; }
.contact-card .ico {
  width: 46px; height: 46px; border-radius: 8px; background: var(--blue-light);
  display: flex; align-items: center; justify-content: center; flex: none;
}
.contact-card h4 { font-size: 15px; color: var(--navy); margin-bottom: 4px; }
.contact-card p { font-size: 14px; color: var(--muted); }
.contact-card p b { color: var(--accent); font-size: 17px; }

.form-box { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.form-box h3 { font-size: 19px; color: var(--navy); margin-bottom: 22px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 14px; margin-bottom: 7px; color: var(--text); }
.field label i { color: var(--accent); font-style: normal; }
.field input, .field select, .field textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--line); border-radius: 4px;
  font-size: 14px; font-family: inherit; color: var(--text); background: #fff; transition: border-color .2s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue); }
.field textarea { height: 108px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ---------- 页脚 ---------- */
.footer { background: #0a2438; color: rgba(255,255,255,.68); padding: 56px 0 0; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; }
.footer h4 { color: #fff; font-size: 16px; margin-bottom: 18px; font-weight: 500; }
.footer h4::after { content: ""; display: block; width: 30px; height: 2px; background: var(--accent); margin-top: 10px; }
.footer p { margin-bottom: 12px; line-height: 1.9; }
.footer ul li { margin-bottom: 9px; }
.footer ul li a:hover { color: var(--accent); padding-left: 4px; }
.footer .logo-text strong { color: #fff; }
.footer .logo-text span { color: rgba(255,255,255,.5); }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; }
.footer-contact b { color: #fff; display: block; font-weight: 500; }
.qr {
  width: 108px; background: transparent; border-radius: 6px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; color: var(--navy); font-size: 12px; text-align: center;
}
.qr img { width: 96px; height: 96px; border-radius: 6px; background: #fff; padding: 4px; box-shadow: 0 4px 12px rgba(0,0,0,.15); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding: 24px 0 20px;
  text-align: center; font-size: 13px; line-height: 2;
  color: rgba(255,255,255,.5);
}
.footer-bottom .fb-line { color: rgba(255,255,255,.68); }
.footer-bottom .fb-line a { color: rgba(255,255,255,.68); transition: color .2s; }
.footer-bottom .fb-line a:hover { color: var(--accent); }
.footer-bottom .fb-note { font-size: 12px; color: rgba(255,255,255,.36); letter-spacing: .3px; }

/* ---------- 浮动工具条 ---------- */
.float-bar { position: fixed; right: 14px; bottom: 80px; z-index: 90; display: flex; flex-direction: column; gap: 10px; }
.float-bar a {
  width: 48px; height: 48px; border-radius: 6px; background: #fff; border: 1px solid var(--line);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  box-shadow: var(--shadow); font-size: 10px; color: var(--muted); gap: 2px;
}
.float-bar a:hover { background: var(--blue); color: #fff; border-color: var(--blue); }
#backTop { cursor: pointer; }

/* ---------- 移动客服条 ---------- */
.mobile-bar {
  display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 95;
  background: #fff; border-top: 1px solid var(--line); box-shadow: 0 -2px 12px rgba(0,0,0,.06);
}
.mobile-bar .container { display: flex; }
.mobile-bar a { flex: 1; text-align: center; padding: 9px 0; font-size: 12px; color: var(--muted); }
.mobile-bar a:first-child { background: var(--navy); color: #fff; }
.mobile-bar a:last-child { background: var(--accent); color: #fff; }

/* ---------- 动画 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s, transform .6s; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); gap: 24px 16px; }
  .step::after { display: none; }
  .honor-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
  .layout { grid-template-columns: 1fr; }
  .side-nav { position: static; }
}

@media (max-width: 900px) {
  .nav {
    display: none; position: absolute; top: 76px; left: 0; right: 0; background: #fff;
    flex-direction: column; align-items: stretch; border-top: 1px solid var(--line);
    box-shadow: var(--shadow-lg); padding: 8px 0; max-height: 74vh; overflow-y: auto;
  }
  .nav.open { display: flex; }
  .nav > li > a { padding: 13px 22px; border-bottom: none; }
  .nav .sub { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; border-left: 3px solid var(--line); min-width: 0; padding: 0; display: none; }
  .nav > li.open .sub { display: block; }
  .nav .sub a { padding: 10px 22px 10px 34px; background: #fafbfc; }
  .nav-toggle { display: block; }
  .header-tel { display: none; }
  .header-cta .btn { display: none; }
  .hero { min-height: auto; }
  .hero h1 { font-size: 30px; }
  .hero .lead { font-size: 15px; }
  .hero-stats { gap: 26px; margin-top: 34px; }
  .hero-stats div strong { font-size: 25px; }
  .about-intro, .contact-grid { grid-template-columns: 1fr; gap: 30px; }
  .grid-2 { grid-template-columns: 1fr; }
  .page-banner { padding: 40px 0; }
  .page-banner h1 { font-size: 25px; }
}

@media (max-width: 640px) {
  body { font-size: 14px; }
  .section { padding: 46px 0; }
  .section-head h2 { font-size: 23px; }
  .grid-4, .grid-3 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .honor-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .news-item { flex-direction: column; align-items: flex-start; gap: 12px; }
  .news-date { display: flex; gap: 8px; align-items: baseline; width: auto; padding: 4px 12px; }
  .news-date b { font-size: 17px; }
  .float-bar { right: 8px; bottom: 66px; }
  .float-bar a { width: 42px; height: 42px; }
  .mobile-bar { display: block; }
  .cta-band .container { flex-direction: column; text-align: center; }
  .topbar { display: none; }
}