/* ==========================================================================
   苏州民润华泽工业材料有限公司 —— MR-HARVEST 官网样式
   设计基调：钢蓝主色 + 橙色点睛，规则线清晰、信息密度高，克制不放装饰
   适用主题：浅色
   ========================================================================== */

:root {
  --brand:        #14456E;
  --brand-deep:   #0E3354;
  --brand-soft:   #EAF1F8;
  --brand-line:   #C8D8E8;
  --accent:       #DE6E1C;
  --accent-soft:  #FCF0E4;

  --ink:          #16202C;
  --ink-2:        #46536A;
  --ink-3:        #7A879B;
  --line:         #E3E8EF;
  --line-strong:  #CFD7E2;

  --bg:           #F3F6FA;
  --surface:      #FFFFFF;
  --surface-2:    #F8FAFC;

  --ok:           #1B7A4B;
  --ok-soft:      #E6F4EC;

  --radius:       10px;
  --radius-sm:    6px;
  --shadow-sm:    0 1px 2px rgba(16, 32, 48, .06);
  --shadow:       0 4px 16px rgba(16, 32, 48, .08);
  --shadow-lg:    0 12px 32px rgba(16, 32, 48, .12);
  --maxw:         1240px;
  --sans: "PingFang SC", "Microsoft YaHei", "微软雅黑", -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------------------------------------------------------------- 顶部信息条 */
.topbar {
  background: var(--brand-deep);
  color: #CFE0EF;
  font-size: 13px;
  line-height: 40px;
}
.topbar .wrap { display: flex; justify-content: space-between; gap: 16px; }
.topbar a { color: #CFE0EF; }
.topbar a:hover { color: #fff; }
.topbar .tb-right { display: flex; gap: 22px; }
.topbar .tb-item { white-space: nowrap; }

/* ---------------------------------------------------------------- 主导航 */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}

.logo { display: flex; align-items: center; gap: 12px; }
.logo-mark {
  width: 40px; height: 40px; flex: none;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-deep) 100%);
  color: #fff;
  display: grid; place-items: center;
  font-weight: 800; font-size: 15px; letter-spacing: -.5px;
}
.logo-text { line-height: 1.2; }
.logo-cn { font-size: 16px; font-weight: 700; color: var(--ink); letter-spacing: .3px; }
.logo-en {
  font-size: 10.5px; color: var(--ink-3); text-transform: uppercase;
  letter-spacing: 1.2px; font-family: var(--mono);
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 8px 14px; border-radius: var(--radius-sm);
  font-size: 14.5px; color: var(--ink-2); font-weight: 500;
  transition: background .15s, color .15s;
}
.nav a:hover { background: var(--brand-soft); color: var(--brand); }
.nav a.is-active { color: var(--brand); font-weight: 700; background: var(--brand-soft); }

.header-cta { display: flex; align-items: center; gap: 10px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: var(--radius-sm);
  font-size: 14.5px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; transition: all .16s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: #C85F13; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(222,110,28,.28); }
.btn-ghost { background: #fff; color: var(--brand); border-color: var(--brand-line); }
.btn-ghost:hover { background: var(--brand-soft); border-color: var(--brand); }
.btn-quiet { background: transparent; color: var(--ink-2); border-color: var(--line-strong); }
.btn-quiet:hover { background: var(--surface-2); color: var(--ink); }
.btn-lg { padding: 14px 28px; font-size: 15.5px; }
.btn-block { width: 100%; }

.nav-toggle {
  display: none; width: 42px; height: 42px; border: 1px solid var(--line-strong);
  background: #fff; border-radius: var(--radius-sm); cursor: pointer;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px; }

/* ---------------------------------------------------------------- 首屏 */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(160deg, #0E3354 0%, #14456E 55%, #1B5788 100%);
  color: #fff;
  padding: 74px 0 82px;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 70% 20%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 70% 20%, #000 30%, transparent 75%);
}
.hero::after {
  content: ""; position: absolute; right: -160px; top: -120px;
  width: 620px; height: 620px; border-radius: 50%;
  background: radial-gradient(circle, rgba(222,110,28,.26) 0%, transparent 62%);
}
.hero .wrap { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 12.5px; letter-spacing: 1.6px; font-weight: 600;
  color: #9FC4E0; text-transform: uppercase;
  border: 1px solid rgba(159,196,224,.3); border-radius: 999px;
  padding: 6px 15px; margin-bottom: 24px;
  background: rgba(255,255,255,.05);
}
.hero-eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
}
.hero h1 {
  margin: 0 0 20px; font-size: 46px; line-height: 1.28;
  font-weight: 800; letter-spacing: -.5px;
}
.hero h1 em { font-style: normal; color: #FFB877; display: block; }
.hero p.lead {
  margin: 0 0 34px; font-size: 16.5px; line-height: 1.85;
  color: #C5DAEC; max-width: 560px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero .btn-primary { background: var(--accent); }
.hero .btn-ghost { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.34); }
.hero .btn-ghost:hover { background: rgba(255,255,255,.16); border-color: #fff; }

.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; margin-top: 56px;
  background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--radius); overflow: hidden;
}
.hero-stat { background: rgba(14,51,84,.55); padding: 20px 18px; text-align: center; }
.hero-stat .num {
  font-family: var(--mono); font-size: 27px; font-weight: 700;
  color: #FFB877; letter-spacing: -1px; line-height: 1.2;
}
.hero-stat .lbl { font-size: 12.5px; color: #A8C4DA; margin-top: 5px; letter-spacing: .3px; }

/* 首屏右侧：能力卡 */
.hero-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 14px; padding: 26px 26px 22px;
  backdrop-filter: blur(6px);
}
.hero-card h3 {
  margin: 0 0 18px; font-size: 14px; letter-spacing: 1px;
  color: #9FC4E0; font-weight: 600; text-transform: uppercase;
}
.hero-card ul { margin: 0; padding: 0; list-style: none; }
.hero-card li {
  display: flex; gap: 11px; padding: 11px 0;
  border-top: 1px solid rgba(255,255,255,.11);
  font-size: 14.5px; color: #DCE9F4;
}
.hero-card li:first-child { border-top: none; padding-top: 2px; }
.hero-card li b { color: #fff; font-weight: 600; }
.hero-card .dot {
  width: 18px; height: 18px; flex: none; margin-top: 3px; border-radius: 5px;
  background: rgba(222,110,28,.22); color: #FFB877;
  display: grid; place-items: center; font-size: 11px; font-weight: 700;
}

/* ---------------------------------------------------------------- 通用区块 */
.section { padding: 76px 0; }
.section.tight { padding: 56px 0; }
.section.alt { background: var(--surface); }
.section.dark { background: var(--brand-deep); color: #fff; }

.sec-head { margin-bottom: 40px; max-width: 760px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-eyebrow {
  font-size: 12px; letter-spacing: 2px; font-weight: 700;
  color: var(--accent); text-transform: uppercase; margin-bottom: 12px;
}
.sec-head h2 {
  margin: 0 0 14px; font-size: 31px; line-height: 1.35;
  font-weight: 800; letter-spacing: -.4px; color: var(--ink);
}
.section.dark .sec-head h2 { color: #fff; }
.sec-head p { margin: 0; color: var(--ink-2); font-size: 15.5px; }
.section.dark .sec-head p { color: #B7CFE3; }

.sec-foot { margin-top: 40px; text-align: center; }

/* ---------------------------------------------------------------- 分类卡 */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cat-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px 24px;
  transition: all .18s ease; position: relative; overflow: hidden;
}
.cat-card::after {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--accent); transform: scaleY(0); transform-origin: top;
  transition: transform .2s ease;
}
.cat-card:hover { border-color: var(--brand-line); box-shadow: var(--shadow); transform: translateY(-3px); }
.cat-card:hover::after { transform: scaleY(1); }
.cat-icon {
  width: 42px; height: 42px; border-radius: 9px; margin-bottom: 16px;
  background: var(--brand-soft); color: var(--brand);
  display: grid; place-items: center;
}
.cat-icon svg { width: 22px; height: 22px; }
.cat-card h3 { margin: 0 0 8px; font-size: 16.5px; font-weight: 700; color: var(--ink); }
.cat-card p { margin: 0 0 14px; font-size: 13.5px; color: var(--ink-2); line-height: 1.65; }
.cat-count {
  font-family: var(--mono); font-size: 12.5px; color: var(--brand);
  font-weight: 600; letter-spacing: .3px;
}
.cat-card .arrow { color: var(--ink-3); transition: transform .18s, color .18s; }
.cat-card:hover .arrow { transform: translateX(4px); color: var(--accent); }

/* ---------------------------------------------------------------- 产品卡 */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.prod-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }

.prod-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column;
  transition: all .18s ease;
}
.prod-card:hover { border-color: var(--brand-line); box-shadow: var(--shadow); transform: translateY(-3px); }

.prod-media {
  position: relative; aspect-ratio: 1 / 1;
  background: var(--surface-2); border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.prod-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.prod-card:hover .prod-media img { transform: scale(1.03); }
.prod-badge {
  position: absolute; left: 12px; top: 12px;
  background: var(--accent); color: #fff;
  font-size: 11.5px; font-weight: 700; letter-spacing: .5px;
  padding: 4px 10px; border-radius: 999px;
}
.prod-lead {
  position: absolute; right: 12px; top: 12px;
  background: rgba(255,255,255,.94); color: var(--ok);
  border: 1px solid var(--ok-soft);
  font-size: 11.5px; font-weight: 600;
  padding: 4px 9px; border-radius: 4px;
}
.prod-body { padding: 18px 18px 20px; display: flex; flex-direction: column; flex: 1; }
.prod-model {
  font-family: var(--mono); font-size: 12px; font-weight: 600;
  color: var(--brand); letter-spacing: .6px; margin-bottom: 7px;
}
.prod-name { margin: 0 0 8px; font-size: 16px; font-weight: 700; line-height: 1.45; color: var(--ink); }
.prod-tagline {
  margin: 0 0 14px; font-size: 13px; color: var(--ink-2); line-height: 1.62;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  min-height: 42px;
}
.prod-specs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.spec-pill {
  font-size: 12px; color: var(--ink-2);
  background: var(--surface-2); border: 1px solid var(--line);
  padding: 3px 9px; border-radius: 4px;
}
.spec-pill b { color: var(--ink); font-weight: 600; font-family: var(--mono); font-size: 11.5px; }
.prod-foot {
  margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between;
}
.prod-link { font-size: 13.5px; font-weight: 600; color: var(--brand); display: inline-flex; align-items: center; gap: 5px; }
.prod-card:hover .prod-link { color: var(--accent); }
.prod-certs { display: flex; gap: 5px; }
.cert-chip {
  font-size: 10.5px; font-family: var(--mono); font-weight: 600;
  color: var(--ink-3); border: 1px solid var(--line-strong);
  padding: 2px 6px; border-radius: 3px;
}

/* ---------------------------------------------------------------- 列表页布局 */
.page-head {
  background: var(--surface); border-bottom: 1px solid var(--line);
  padding: 34px 0 30px;
}
.crumb { font-size: 13px; color: var(--ink-3); margin-bottom: 12px; }
.crumb a:hover { color: var(--brand); }
.crumb span { margin: 0 7px; color: var(--line-strong); }
.page-head h1 { margin: 0 0 8px; font-size: 28px; font-weight: 800; letter-spacing: -.3px; }
.page-head p { margin: 0; color: var(--ink-2); font-size: 14.5px; }

.list-layout { display: grid; grid-template-columns: 248px 1fr; gap: 32px; padding: 36px 0 76px; align-items: start; }

.filters { position: sticky; top: 96px; }
.filter-box {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; margin-bottom: 16px;
}
.filter-box > h4 {
  margin: 0; padding: 14px 16px; font-size: 13px; font-weight: 700;
  color: var(--ink); border-bottom: 1px solid var(--line);
  letter-spacing: .4px; display: flex; justify-content: space-between; align-items: center;
  background: var(--surface-2);
}
.filter-box .fb-body { padding: 10px 12px 14px; }
.filter-item {
  display: flex; align-items: center; gap: 9px;
  padding: 8px 8px; border-radius: var(--radius-sm); cursor: pointer;
  font-size: 14px; color: var(--ink-2); transition: background .14s;
  user-select: none;
}
.filter-item:hover { background: var(--brand-soft); }
.filter-item input { accent-color: var(--brand); width: 15px; height: 15px; cursor: pointer; flex: none; }
.filter-item .cnt { margin-left: auto; font-family: var(--mono); font-size: 11.5px; color: var(--ink-3); }
.filter-item.active { color: var(--brand); font-weight: 600; }

.tag-cloud { display: flex; flex-wrap: wrap; gap: 7px; }
.tag-btn {
  font-size: 12.5px; padding: 5px 11px; border-radius: 999px;
  border: 1px solid var(--line-strong); background: #fff; color: var(--ink-2);
  cursor: pointer; transition: all .14s;
}
.tag-btn:hover { border-color: var(--brand); color: var(--brand); }
.tag-btn.active { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }

.list-toolbar {
  display: flex; align-items: center; gap: 14px; margin-bottom: 22px;
  padding-bottom: 16px; border-bottom: 1px solid var(--line);
}
.search-box { position: relative; flex: 1; max-width: 420px; }
.search-box svg { position: absolute; left: 13px; top: 50%; transform: translateY(-50%); color: var(--ink-3); width: 17px; height: 17px; }
.search-box input {
  width: 100%; padding: 11px 14px 11px 40px; font-size: 14.5px; font-family: inherit;
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  background: #fff; color: var(--ink); outline: none; transition: border-color .15s, box-shadow .15s;
}
.search-box input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(20,69,110,.1); }
.result-count { font-size: 13.5px; color: var(--ink-3); }
.result-count b { color: var(--ink); font-family: var(--mono); font-size: 15px; }
.sort-sel {
  margin-left: auto; padding: 10px 12px; font-size: 13.5px; font-family: inherit;
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  background: #fff; color: var(--ink-2); cursor: pointer;
}
.active-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.chip-x {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12.5px; background: var(--brand-soft); color: var(--brand);
  border: 1px solid var(--brand-line); padding: 4px 8px 4px 11px; border-radius: 999px;
  font-weight: 500;
}
.chip-x button { border: none; background: none; color: var(--brand); cursor: pointer; font-size: 15px; line-height: 1; padding: 0; opacity: .65; }
.chip-x button:hover { opacity: 1; }
.chip-clear { font-size: 12.5px; color: var(--ink-3); background: none; border: none; cursor: pointer; text-decoration: underline; }

.empty {
  text-align: center; padding: 80px 24px;
  background: var(--surface); border: 1px dashed var(--line-strong); border-radius: var(--radius);
}
.empty h3 { margin: 0 0 8px; font-size: 17px; }
.empty p { margin: 0 0 20px; color: var(--ink-2); font-size: 14px; }

/* ---------------------------------------------------------------- 详情页 */
.detail-layout { display: grid; grid-template-columns: 1fr 396px; gap: 44px; padding: 36px 0 20px; align-items: start; }

/* 详情页上半区：图集 + 标题与关键参数并排 */
.detail-top { display: grid; grid-template-columns: 460px 1fr; gap: 36px; align-items: start; }
.detail-info .detail-title-row { margin-top: 2px; }

.gallery-main {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; aspect-ratio: 1 / 1;
}
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: flex; gap: 12px; margin-top: 12px; }
.thumb {
  width: 88px; height: 88px; border-radius: var(--radius-sm); overflow: hidden;
  border: 2px solid var(--line); cursor: pointer; background: var(--surface-2);
  padding: 0; transition: border-color .15s;
}
.thumb img { width: 100%; height: 100%; object-fit: cover; }
.thumb.active { border-color: var(--accent); }
.thumb:hover { border-color: var(--brand-line); }

.detail-title-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.detail-model {
  font-family: var(--mono); font-size: 13px; font-weight: 700;
  color: var(--brand); background: var(--brand-soft);
  border: 1px solid var(--brand-line); padding: 4px 10px; border-radius: 4px;
  letter-spacing: .8px;
}
.detail-cat { font-size: 12.5px; color: var(--ink-3); }
.detail-layout h1 { margin: 0 0 14px; font-size: 30px; font-weight: 800; line-height: 1.35; letter-spacing: -.4px; }
.detail-tagline {
  font-size: 16px; color: var(--ink-2); line-height: 1.75; margin: 0 0 26px;
  padding-left: 16px; border-left: 3px solid var(--accent);
}

.highlight-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 30px; }
.hl-item {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 14px 16px;
}
.hl-item .k { font-size: 12px; color: var(--ink-3); margin-bottom: 5px; }
.hl-item .v { font-family: var(--mono); font-size: 17px; font-weight: 700; color: var(--brand); letter-spacing: -.3px; }
.hl-item .v small { font-size: 11.5px; font-weight: 500; color: var(--ink-3); margin-left: 3px; font-family: var(--sans); }

/* 详情页右栏较窄：关键参数改为「名称-数值」单列清单，避免数值换行 */
.detail-info .highlight-row {
  grid-template-columns: 1fr; gap: 0;
  border-top: 1px solid var(--line); margin-bottom: 30px;
}
.detail-info .hl-item {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  border: none; border-bottom: 1px solid var(--line);
  border-radius: 0; padding: 12px 2px; background: transparent;
}
.detail-info .hl-item .k { margin-bottom: 0; font-size: 13px; color: var(--ink-2); white-space: nowrap; }
.detail-info .hl-item .v { font-size: 16px; text-align: right; white-space: nowrap; }

.block-title {
  display: flex; align-items: center; gap: 10px;
  font-size: 16.5px; font-weight: 700; margin: 0 0 16px; color: var(--ink);
}
.block-title::before {
  content: ""; width: 3px; height: 16px; border-radius: 2px; background: var(--accent);
}
.detail-block { margin-bottom: 38px; }

.spec-table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.spec-table tr { border-bottom: 1px solid var(--line); }
.spec-table tr:last-child { border-bottom: none; }
.spec-table tr:nth-child(even) { background: var(--surface-2); }
.spec-table th {
  text-align: left; width: 30%; padding: 12px 18px;
  font-size: 13.5px; font-weight: 600; color: var(--ink-2); vertical-align: top;
}
.spec-table td {
  padding: 12px 18px; font-size: 14px; color: var(--ink); font-weight: 500;
}
.spec-table td .unit { font-family: var(--mono); color: var(--ink-3); font-size: 12.5px; font-weight: 400; margin-left: 4px; }

.scenario-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.scenario-item {
  display: flex; gap: 11px; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 15px 17px;
  font-size: 14px; color: var(--ink-2); line-height: 1.6;
}
.scenario-item i {
  width: 20px; height: 20px; flex: none; border-radius: 5px; margin-top: 2px;
  background: var(--brand-soft); color: var(--brand);
  display: grid; place-items: center; font-style: normal; font-size: 11px; font-weight: 700;
}

/* 询盘侧栏 */
.inquiry-card {
  position: sticky; top: 96px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow);
}
.inquiry-head {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-deep) 100%);
  color: #fff; padding: 22px 24px;
}
.inquiry-head h3 { margin: 0 0 6px; font-size: 17px; font-weight: 700; }
.inquiry-head p { margin: 0; font-size: 13px; color: #B7CFE3; line-height: 1.6; }
.inquiry-body { padding: 22px 24px 24px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; font-weight: 600; color: var(--ink-2); margin-bottom: 6px; }
.field label i { color: var(--accent); font-style: normal; }
.field input, .field textarea, .field select {
  width: 100%; padding: 10px 12px; font-size: 14px; font-family: inherit;
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  background: #fff; color: var(--ink); outline: none; transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--brand); box-shadow: 0 0 0 3px rgba(20,69,110,.1);
}
.field textarea { resize: vertical; min-height: 78px; }
.form-note { font-size: 12px; color: var(--ink-3); margin-top: 12px; line-height: 1.6; }
.form-ok {
  display: none; margin-top: 14px; padding: 13px 15px;
  background: var(--ok-soft); border: 1px solid #BCE3CC; border-radius: var(--radius-sm);
  font-size: 13.5px; color: var(--ok); line-height: 1.6;
}
.form-ok.show { display: block; }

.contact-quick {
  margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--line);
}
.contact-quick .row {
  display: flex; align-items: center; gap: 10px;
  font-size: 13.5px; color: var(--ink-2); padding: 6px 0;
}
.contact-quick .row svg { width: 16px; height: 16px; color: var(--brand); flex: none; }
.contact-quick .row b { font-family: var(--mono); color: var(--ink); font-size: 14px; }

/* ---------------------------------------------------------------- 优势 / 资质 */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.adv-item { padding: 26px 22px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius); }
.adv-item .n { font-family: var(--mono); font-size: 13px; color: var(--accent); font-weight: 700; margin-bottom: 12px; }
.adv-item h4 { margin: 0 0 9px; font-size: 16px; font-weight: 700; color: #fff; }
.adv-item p { margin: 0; font-size: 13.5px; color: #B7CFE3; line-height: 1.7; }

.cert-strip { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.cert-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 22px 14px; text-align: center;
}
.cert-card .cc-code { font-family: var(--mono); font-size: 15px; font-weight: 700; color: var(--brand); letter-spacing: .5px; }
.cert-card .cc-name { font-size: 12px; color: var(--ink-3); margin-top: 6px; line-height: 1.5; }

/* ---------------------------------------------------------------- 询盘区 */
.inquiry-section {
  background: linear-gradient(150deg, #0E3354 0%, #14456E 100%);
  color: #fff; padding: 72px 0;
}
.inquiry-layout { display: grid; grid-template-columns: 1fr 440px; gap: 60px; align-items: center; }
.inquiry-section h2 { margin: 0 0 16px; font-size: 30px; font-weight: 800; line-height: 1.4; letter-spacing: -.4px; }
.inquiry-section .lead { margin: 0 0 28px; color: #B7CFE3; font-size: 15.5px; line-height: 1.85; max-width: 520px; }
.inquiry-points { list-style: none; margin: 0; padding: 0; }
.inquiry-points li { display: flex; gap: 11px; align-items: flex-start; padding: 9px 0; font-size: 14.5px; color: #DCE9F4; }
.inquiry-points .tick {
  width: 19px; height: 19px; flex: none; margin-top: 3px; border-radius: 50%;
  background: rgba(222,110,28,.24); color: #FFB877;
  display: grid; place-items: center; font-size: 11px; font-weight: 700;
}
.form-panel { background: #fff; border-radius: 12px; padding: 30px 30px 26px; box-shadow: var(--shadow-lg); }
.form-panel h3 { margin: 0 0 6px; font-size: 19px; font-weight: 700; color: var(--ink); }
.form-panel .sub { margin: 0 0 22px; font-size: 13.5px; color: var(--ink-3); }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* ---------------------------------------------------------------- 页脚 */
.footer { background: #0A2338; color: #93AEC5; padding: 56px 0 0; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: 40px; padding-bottom: 40px; }
.footer h4 { margin: 0 0 16px; font-size: 14px; color: #fff; font-weight: 700; letter-spacing: .3px; }
.footer ul { list-style: none; margin: 0; padding: 0; }
.footer li { padding: 5px 0; }
.footer a:hover { color: #fff; }
.footer .f-brand { display: flex; align-items: center; gap: 11px; margin-bottom: 16px; }
.footer .f-brand .logo-mark { background: rgba(255,255,255,.1); }
.footer .f-brand-cn { font-size: 15px; color: #fff; font-weight: 700; line-height: 1.3; }
.footer .f-brand-en { font-size: 10.5px; color: #6E8CA6; font-family: var(--mono); letter-spacing: .8px; text-transform: uppercase; }
.footer .f-desc { line-height: 1.8; color: #7E9AB2; font-size: 13.5px; margin: 0; }
.footer .f-contact li { display: flex; gap: 10px; align-items: flex-start; color: #93AEC5; }
.footer .f-contact svg { width: 15px; height: 15px; margin-top: 4px; flex: none; color: #5C7B95; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0 26px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 12.5px; color: #6E8CA6;
}
.footer-bottom .icp { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-bottom .icp a { color: inherit; text-decoration: none; }
.footer-bottom .icp a:hover { color: var(--brand, #1F6FEB); text-decoration: underline; }
.footer-bottom a:hover { color: #fff; }

/* ---------------------------------------------------------------- 其他 */
.toast {
  position: fixed; left: 50%; bottom: 34px; transform: translate(-50%, 20px);
  background: var(--ink); color: #fff; padding: 12px 22px; border-radius: 8px;
  font-size: 14px; box-shadow: var(--shadow-lg); opacity: 0; pointer-events: none;
  transition: all .25s ease; z-index: 200;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 38px; }
  .prod-grid { grid-template-columns: repeat(3, 1fr); }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-strip { grid-template-columns: repeat(3, 1fr); }
  .detail-layout { grid-template-columns: 1fr; gap: 32px; }
  .detail-top { grid-template-columns: 400px 1fr; }
  .inquiry-card { position: static; }
  .inquiry-layout { grid-template-columns: 1fr; gap: 36px; }
  .related-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
}

@media (max-width: 820px) {
  .detail-top { grid-template-columns: 1fr; gap: 26px; }
}

@media (max-width: 860px) {
  .nav { display: none; }
  .nav.open {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; left: 0; right: 0; top: 72px;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 10px 16px 16px; gap: 2px; box-shadow: var(--shadow);
  }
  .nav-toggle { display: flex; }
  .topbar .wrap { font-size: 12px; }
  .topbar .tb-right { display: none; }
  .list-layout { grid-template-columns: 1fr; }
  .filters { position: static; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .highlight-row { grid-template-columns: repeat(2, 1fr); }
  .scenario-list { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .section { padding: 52px 0; }
  .hero { padding: 52px 0 58px; }
  .hero h1 { font-size: 30px; }
  .sec-head h2 { font-size: 24px; }
  .prod-grid, .prod-grid.cols-3, .related-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-grid { gap: 12px; }
  .prod-body { padding: 13px 13px 15px; }
  .prod-name { font-size: 14px; }
  .prod-tagline { font-size: 12px; min-height: 38px; }
  .cat-grid, .adv-grid { grid-template-columns: 1fr; }
  .cert-strip { grid-template-columns: repeat(2, 1fr); }
  .page-head h1 { font-size: 22px; }
  .detail-layout h1 { font-size: 23px; }
  .list-toolbar { flex-wrap: wrap; }
  .sort-sel { margin-left: 0; width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row-2 { grid-template-columns: 1fr; }
  .form-panel { padding: 22px 20px; }
  .inquiry-section h2 { font-size: 23px; }
  .detail-layout { padding-top: 24px; }
}

/* ==========================================================================
   v2 —— 字段标注 & 规格标签
   ========================================================================== */

/* 型号旁的规格标签 */
.prod-spec-tag {
  margin-left: 8px; font-size: 11px; color: var(--ink-3);
  font-family: var(--mono); letter-spacing: 0;
}
.detail-spec {
  font-family: var(--mono); font-size: 12.5px; color: var(--ink-2);
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 4px; padding: 3px 9px;
}

/* ---------------------------------------------------------------- 字段标注开关 */
.anno-toggle {
  position: fixed; right: 18px; bottom: 18px; z-index: 999;
  border: 1px solid #C9A96A; background: #FFFDF6; color: #7A6230;
  font-size: 12.5px; padding: 8px 14px; border-radius: 20px;
  cursor: pointer; box-shadow: 0 4px 14px rgba(0,0,0,.10);
  font-family: inherit;
}
.anno-toggle b { color: #C0392B; }
.anno-toggle:hover { background: #FBF3DC; }

/* 标注模式：每块内容右上角浮现来源标签 */
body.anno [data-src] { outline: 1px dashed rgba(192,57,43,.35); outline-offset: 2px; position: relative; }
body.anno [data-src]::after {
  content: attr(data-src);
  position: absolute; top: -10px; right: -4px; z-index: 60;
  background: #C0392B; color: #fff;
  font-size: 10.5px; line-height: 1; padding: 4px 7px;
  border-radius: 3px; white-space: nowrap; pointer-events: none;
  font-family: "PingFang SC","Microsoft YaHei",sans-serif;
  box-shadow: 0 2px 6px rgba(0,0,0,.18);
}

/* ==========================================================================
   v3 —— 真实资质卡 / 关于我们
   ========================================================================== */
.cert-card.cert-real { border-color: #C6D3E0; background: #FFFFFF; }
.cert-card .cc-meta {
  margin-top: 8px; font-size: 11.5px; line-height: 1.5;
  color: var(--ink-3); letter-spacing: 0;
}
/* 关于我们页：资质卡在正文宽度内排布 */
.detail-block .cert-strip { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) {
  .detail-block .cert-strip { grid-template-columns: repeat(2, 1fr); }
}

/* ==========================================================================
   v4 —— 头部真 logo / 头部电话按钮
   ========================================================================== */
.logo-img { display: block; height: 54px; width: auto; }
.header-cta .btn[href^="tel:"] {
  font-family: var(--mono, monospace);
  letter-spacing: .2px;
  padding: 9px 16px;
}
@media (max-width: 900px) {
  .logo-img { height: 46px; }
}

/* ==========================================================================
   v5 —— 运营数据汇总（副说明行）
   ========================================================================== */
.hero-stat .lbl small {
  display: block; margin-top: 3px;
  font-size: 11px; color: #8FAEC6; letter-spacing: 0;
}
.hero-stat { padding: 18px 16px; }

/* 首页紧凑化：整页控制在两屏内 */
body[data-page="home"] .hero { padding: 58px 0 62px; }
body[data-page="home"] .hero-stats { margin-top: 36px; }
body[data-page="home"] .section { padding: 52px 0; }
body[data-page="home"] .sec-head { margin-bottom: 28px; }
body[data-page="home"] .footer { padding: 40px 0 0; }
body[data-page="home"] .footer-grid { margin-bottom: 28px; }
body[data-page="home"] .hero-card { padding: 22px 24px 18px; }
body[data-page="home"] .hero-card li { padding: 10px 0; }
body[data-page="home"] .cat-card { padding: 20px 20px 18px; }
body[data-page="home"] .cat-icon { width: 38px; height: 38px; margin-bottom: 12px; }
body[data-page="home"] .footer-grid { padding-bottom: 26px; gap: 32px; }
body[data-page="home"] .footer-bottom { padding: 14px 0 18px; }

/* ==========================================================================
   v7 —— 五大类分类 / 关于我们页头精简
   ========================================================================== */

/* 仅供读屏与搜索引擎的隐藏标题 */
.vh {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* 精简版页头：去掉大标题，只留面包屑 */
.page-head.slim { padding: 20px 0 18px; }
.page-head.slim .crumb { margin-bottom: 0; }

/* 关于我们页：无页头大标题，正文上下留白单独给 */
body[data-page="about"] .detail-layout { padding: 34px 0 72px; }

/* 分类暂无型号：置灰但仍可点击，便于查看结构 */
.filter-item.is-empty { color: var(--ink-3); }
.filter-item.is-empty .cnt { color: #C3CBD5; }
.filter-item.is-empty:hover { background: var(--surface-2); }
.filter-item.is-empty.active { color: var(--ink-2); }

/* ==========================================================================
   v8 —— 产品子分类（品牌）树状筛选
   ========================================================================== */
.filter-sub {
  margin: 2px 0 8px 16px;
  padding-left: 12px;
  border-left: 2px solid var(--line-strong);
}
.filter-item.sub-item { font-size: 13.5px; padding: 7px 8px; }
.filter-item.sub-item .cnt { font-size: 11px; }

/* ==========================================================================
   v9 —— 产品分类改为「下拉式」：品牌子分类默认收起，点箭头展开
   ========================================================================== */

/* 展开/收起箭头（只有配置了品牌子分类的大类才出现） */
.filter-item .sub-toggle {
  flex: none; width: 20px; height: 20px; padding: 0; margin-left: 2px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 0; background: none; border-radius: 4px;
  color: var(--ink-3); cursor: pointer;
}
.filter-item .sub-toggle:hover { background: var(--line); color: var(--ink); }
.filter-item .sub-toggle svg {
  width: 14px; height: 14px;
  transform: rotate(-90deg);              /* 收起：箭头朝右 */
  transition: transform .16s ease;
}
.filter-item .sub-toggle[aria-expanded="true"] svg { transform: rotate(0deg); }  /* 展开：箭头朝下 */

/* 收起态的完整隐藏（同时保留 DOM，便于联动与无障碍） */
.filter-sub.is-collapsed { display: none; }

/* ==========================================================================
   v10 —— 产品图片位
   图片清单尚未提交，除个别型号外暂无产品图。
   无图时图片位留空（浅灰底 + 极淡图标），保持卡片版面稳定；
   图片文件名填进 data.js 的 img 字段后自动替换为实拍图。
   ========================================================================== */
.prod-media.is-blank {
  background: linear-gradient(160deg, #F8F9FB 0%, #EFF1F4 100%);
}
.prod-media.is-blank .media-blank {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: #CBD2DB;
}
.prod-media.is-blank .media-blank svg { width: 40px; height: 40px; }

.gallery-blank {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(160deg, #F8F9FB 0%, #EFF1F4 100%);
  color: #CBD2DB;
}
.gallery-blank svg { width: 58px; height: 58px; }