/* ============================================================
   江苏惠尔泵业有限公司 — 官网设计系统
   色调：品牌深蓝 + 品牌橙（取自公司 logo）
   ============================================================ */
:root {
  --blue-950: #071729;
  --blue-900: #0A1E36;
  --blue-800: #0D2B4E;
  --blue-700: #103E6E;
  --blue-600: #16538F;
  --blue-500: #1E6BB8;
  --blue-100: #E8F0F9;
  --orange-600: #D9640E;
  --orange-500: #F07B22;
  --orange-100: #FDF0E4;
  --ink-900: #12293C;
  --ink-700: #2C4A63;
  --ink-500: #54708A;
  --ink-300: #8CA3B8;
  --line: #E2EAF2;
  --bg-soft: #F4F8FC;
  --white: #FFFFFF;
  --radius: 6px;
  --radius-lg: 10px;
  --shadow-sm: 0 1px 3px rgba(13, 43, 78, .08);
  --shadow-md: 0 8px 24px rgba(13, 43, 78, .10);
  --shadow-lg: 0 16px 40px rgba(13, 43, 78, .16);
  --container: 1200px;
  --font: "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
}

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

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  font-family: var(--font);
  color: var(--ink-700);
  font-size: 16px;
  line-height: 1.7;
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

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

/* ---------- 通用标题 ---------- */
.sec { padding: 88px 0; }
.sec-soft { background: var(--bg-soft); }

.sec-head { text-align: center; margin-bottom: 52px; }

.sec-head .kicker {
  display: inline-block;
  font-size: 13px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--orange-500);
  font-weight: 700;
  margin-bottom: 12px;
}

.sec-head h2 {
  font-size: 34px;
  color: var(--ink-900);
  font-weight: 800;
  letter-spacing: .01em;
  line-height: 1.3;
}

.sec-head h2 em {
  font-style: normal;
  color: var(--blue-600);
}

.sec-head .sub {
  margin-top: 14px;
  color: var(--ink-500);
  font-size: 15px;
}

.sec-head.left { text-align: left; margin-bottom: 36px; }

/* 标题装饰竖条 */
.bar-title {
  position: relative;
  padding-left: 16px;
}
.bar-title::before {
  content: "";
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 4px;
  background: linear-gradient(180deg, var(--orange-500), var(--orange-600));
  border-radius: 2px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .2s ease;
  white-space: nowrap;
}

.btn-orange {
  background: #F07B22;
  background: linear-gradient(135deg, var(--orange-500), var(--orange-600));
  color: #fff;
  box-shadow: 0 6px 18px rgba(240, 123, 34, .35);
}
.btn-orange:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(240, 123, 34, .45); }

.btn-ghost {
  border-color: rgba(255, 255, 255, .55);
  color: #fff;
  background: rgba(255, 255, 255, .06);
  backdrop-filter: blur(4px);
}
.btn-ghost:hover { background: rgba(255, 255, 255, .16); border-color: #fff; }

.btn-blue {
  background: var(--blue-700);
  color: #fff;
}
.btn-blue:hover { background: var(--blue-600); transform: translateY(-2px); }

.btn-line {
  border-color: var(--blue-600);
  color: var(--blue-600);
  background: #fff;
}
.btn-line:hover { background: var(--blue-100); }

.btn-sm { height: 40px; padding: 0 20px; font-size: 14px; }

/* ---------- 顶部信息条 ---------- */
.topbar {
  background: var(--blue-950);
  color: #A8BDD1;
  font-size: 13px;
  line-height: 40px;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.topbar b { color: #fff; font-weight: 600; }
.topbar .tb-left span { margin-right: 22px; }
.topbar .tb-right a:hover { color: #fff; }

/* ---------- 导航 ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  min-width: 0;
  gap: 10px;
}

.logo { display: flex; align-items: center; gap: 12px; flex: none; }
.logo img { height: 46px; width: auto; }
.logo .logo-text { line-height: 1.25; }
.logo .logo-text strong { display: block; font-size: 19px; color: var(--ink-900); letter-spacing: .02em; }
.logo .logo-text small { font-size: 11px; color: var(--ink-300); letter-spacing: .14em; text-transform: uppercase; }

.nav { display: flex; align-items: center; gap: 1px; flex: none; margin-left: 6px; }
.nav > a {
  position: relative;
  white-space: nowrap;
  padding: 10px 11px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-700);
  border-radius: 4px;
  transition: color .15s;
}
.nav > a::after {
  content: "";
  position: absolute;
  left: 11px; right: 11px; bottom: 2px;
  height: 2px;
  background: var(--orange-500);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
}
.nav > a:hover, .nav > a.active { color: var(--blue-700); }
.nav > a:hover::after, .nav > a.active::after { transform: scaleX(1); }

.header .btn { margin-left: 14px; flex: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  color: #fff;
  background: var(--blue-900);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background-size: cover;
  background-position: center 58%;
  opacity: .46;
  filter: saturate(.9);
}
.hero::before {
  content: "";
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background:
    linear-gradient(100deg, rgba(7, 23, 41, .96) 0%, rgba(10, 30, 54, .88) 42%, rgba(13, 43, 78, .55) 100%);
  z-index: 1;
}
/* 工程网格纹理 */
.hero::after {
  content: "";
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  z-index: 1;
  mask-image: linear-gradient(90deg, rgba(0,0,0,.9), transparent 70%);
  -webkit-mask-image: linear-gradient(90deg, rgba(0,0,0,.9), transparent 70%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding: 108px 0 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 36px;
  padding: 0 16px;
  border: 1px solid rgba(240, 123, 34, .6);
  background: rgba(240, 123, 34, .12);
  color: #FFC79A;
  border-radius: 999px;
  font-size: 13.5px;
  letter-spacing: .06em;
  margin-bottom: 30px;
}
.hero-badge i {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--orange-500);
  box-shadow: 0 0 0 3px rgba(240, 123, 34, .25);
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: .01em;
  max-width: 760px;
}
.hero h1 .hl {
  color: #FFB877;
  position: relative;
}

.hero .lead {
  margin-top: 24px;
  font-size: 17px;
  line-height: 1.9;
  color: #B9CCDD;
  max-width: 640px;
}

.hero-cta { display: flex; gap: 16px; margin-top: 40px; flex-wrap: wrap; }

.hero-cta .btn-phone {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, var(--orange-500), var(--orange-600));
  color: #fff;
  height: 56px;
  padding: 0 30px;
  border-radius: var(--radius);
  font-weight: 700;
  box-shadow: 0 10px 28px rgba(240, 123, 34, .4);
  transition: all .2s;
}
.hero-cta .btn-phone:hover { transform: translateY(-2px); }
.hero-cta .btn-phone .ph-num { font-size: 21px; letter-spacing: .02em; }
.hero-cta .btn-phone .ph-tip { font-size: 11.5px; opacity: .85; font-weight: 500; line-height: 1.3; }

/* 数据条 */
.hero-stats {
  position: relative;
  z-index: 2;
  margin-top: 84px;
  background: rgba(7, 23, 41, .72);
  border-top: 1px solid rgba(255, 255, 255, .1);
  backdrop-filter: blur(6px);
}
.hero-stats .container {
  display: flex;
}
.hero-stats .stat { flex: 1; }
.stat {
  padding: 30px 12px 32px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,.08);
}
.stat:first-child { border-left: 1px solid rgba(255,255,255,.08); }
.stat .num {
  font-size: 38px;
  font-weight: 800;
  color: #fff;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.stat .num small { font-size: 18px; font-weight: 700; color: var(--orange-500); margin-left: 2px; }
.stat .lab { margin-top: 8px; font-size: 13.5px; color: #93A9BE; letter-spacing: .06em; }

/* ---------- 产品网格 ---------- */
.grid-products {
  display: flex;
  flex-wrap: wrap;
  margin: -11px;
}
.grid-products > * { width: calc(25% - 22px); margin: 11px; }

.pcard {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .25s ease;
  display: flex;
  flex-direction: column;
}
.pcard:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: #CFE0EF;
}

.pcard .ph {
  position: relative;
  height: 0;
  padding-top: 75%;
  overflow: hidden;
  background: #EAF1F8;
}
.pcard .ph img {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.pcard:hover .ph img { transform: scale(1.06); }
.pcard .ph .tag {
  position: absolute;
  left: 12px; top: 12px;
  background: rgba(10, 30, 54, .82);
  color: #fff;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 4px;
  letter-spacing: .04em;
  backdrop-filter: blur(3px);
}
.pcard .bd { padding: 18px 20px 22px; flex: 1; display: flex; flex-direction: column; }
.pcard h3 {
  font-size: 18px;
  color: var(--ink-900);
  font-weight: 700;
}
.pcard .models {
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--blue-500);
  font-family: Consolas, monospace;
  letter-spacing: .03em;
}
.pcard p {
  margin-top: 10px;
  font-size: 13.5px;
  color: var(--ink-500);
  line-height: 1.7;
  flex: 1;
}
.pcard .more {
  margin-top: 14px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--orange-500);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.pcard .more::after { content: "→"; transition: transform .2s; }
.pcard:hover .more::after { transform: translateX(4px); }

.sec-foot { text-align: center; margin-top: 46px; }

/* ---------- 行业应用条 ---------- */
.industries {
  background: var(--blue-900);
  color: #fff;
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}
.industries::after {
  content: "";
  position: absolute;
  right: -120px; top: -120px;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(30, 107, 184, .35), transparent 65%);
}
.industries .container { position: relative; z-index: 1; }
.industries h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 8px;
}
.industries .sub { color: #9FB4C9; font-size: 14.5px; margin-bottom: 30px; }
.ind-tags { display: flex; flex-wrap: wrap; gap: 12px; }
.ind-tags span {
  padding: 9px 20px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 999px;
  font-size: 14.5px;
  color: #D6E3F0;
  transition: all .2s;
}
.ind-tags span:hover {
  border-color: var(--orange-500);
  background: rgba(240, 123, 34, .14);
  color: #FFC79A;
}

/* ---------- 优势 ---------- */
.grid-adv {
  display: flex;
  flex-wrap: wrap;
  margin: -11px;
}
.grid-adv > * { width: calc(25% - 22px); margin: 11px; }
.adv {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  position: relative;
  overflow: hidden;
  transition: all .25s;
}
.adv::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--blue-600), var(--blue-500));
  opacity: 0;
  transition: opacity .25s;
}
.adv:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.adv:hover::before { opacity: 1; }
.adv .icon {
  width: 52px; height: 52px;
  border-radius: 8px;
  background: var(--blue-100);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.adv .icon svg { width: 26px; height: 26px; stroke: var(--blue-600); }
.adv h3 { font-size: 17px; color: var(--ink-900); margin-bottom: 10px; }
.adv p { font-size: 13.5px; color: var(--ink-500); line-height: 1.75; }

/* ---------- 案例 ---------- */
.grid-cases {
  display: flex;
  flex-wrap: wrap;
  margin: -11px;
}
.grid-cases > * { width: calc(33.333% - 22px); margin: 11px; }
.ccard {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--blue-900);
  height: 0;
  padding-top: 75%;
  display: block;
}
.ccard img {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: .82;
  transition: transform .45s ease, opacity .3s;
}
.ccard:hover img { transform: scale(1.06); opacity: .62; }
.ccard .cap {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 48px 22px 20px;
  background: linear-gradient(180deg, transparent, rgba(7, 23, 41, .92));
  color: #fff;
}
.ccard .cap .tagline {
  font-size: 12px;
  color: #FFB877;
  letter-spacing: .1em;
  margin-bottom: 6px;
}
.ccard .cap h3 {
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
}

/* ---------- 关于我们 ---------- */
.about-wrap {
  display: flex;
  align-items: center;
}
.about-wrap > .about-txt { flex: 1.05; margin-right: 64px; }
.about-wrap > .about-media { flex: .95; min-width: 0; }
.about-txt h2 { font-size: 32px; color: var(--ink-900); font-weight: 800; line-height: 1.35; }
.about-txt .about-lead {
  margin-top: 22px;
  font-size: 15.5px;
  color: var(--ink-500);
  line-height: 1.95;
}
.about-facts {
  margin: 30px -14px 0;
  display: flex;
  flex-wrap: wrap;
}
.about-facts li { width: calc(50% - 28px); margin: 8px 14px; }
.about-facts li {
  list-style: none;
  font-size: 14.5px;
  color: var(--ink-700);
  display: flex;
  gap: 10px;
  align-items: flex-start;
  line-height: 1.6;
}
.about-facts li::before {
  content: "";
  flex: none;
  width: 18px; height: 18px;
  margin-top: 3px;
  border-radius: 4px;
  background: var(--orange-100) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23F07B22' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/11px no-repeat;
}
.about-media { position: relative; }
.about-media .m1 {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.about-media .m2 {
  position: absolute;
  right: -26px;
  bottom: -34px;
  width: 46%;
  border-radius: var(--radius-lg);
  border: 5px solid #fff;
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  aspect-ratio: 4/3;
}
.about-media .badge-year {
  position: absolute;
  left: -20px;
  top: 26px;
  background: linear-gradient(135deg, var(--orange-500), var(--orange-600));
  color: #fff;
  border-radius: var(--radius);
  padding: 14px 18px;
  box-shadow: 0 10px 26px rgba(240, 123, 34, .4);
  line-height: 1.25;
}
.about-media .badge-year b { display: block; font-size: 24px; font-weight: 800; }
.about-media .badge-year span { font-size: 12px; opacity: .92; }

/* ---------- FAQ ---------- */
.faq-wrap { max-width: 880px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow .2s;
}
.faq-item[open] { box-shadow: var(--shadow-md); border-color: #CFE0EF; }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 26px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-900);
  display: flex;
  align-items: center;
  gap: 14px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .q {
  flex: none;
  width: 26px; height: 26px;
  border-radius: 6px;
  background: var(--blue-100);
  color: var(--blue-600);
  font-size: 13px;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.faq-item summary .arr {
  margin-left: auto;
  flex: none;
  width: 18px; height: 18px;
  transition: transform .25s;
}
.faq-item summary .arr svg { width: 100%; height: 100%; stroke: var(--ink-300); }
.faq-item[open] summary .arr { transform: rotate(180deg); }
.faq-item .ans {
  padding: 0 26px 24px 66px;
  font-size: 14.5px;
  color: var(--ink-500);
  line-height: 1.95;
}

/* ---------- 新闻 ---------- */
.grid-news {
  display: flex;
  flex-wrap: wrap;
  margin: -11px;
}
.grid-news > * { width: calc(25% - 22px); margin: 11px; }
.ncard {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .25s;
  display: flex;
  flex-direction: column;
}
.ncard:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.ncard .ph { position: relative; height: 0; padding-top: 62.5%; overflow: hidden; background: #EAF1F8; }
.ncard .ph img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.ncard:hover .ph img { transform: scale(1.05); }
.ncard .bd { padding: 16px 18px 20px; flex: 1; display: flex; flex-direction: column; }
.ncard .date {
  font-size: 12px;
  color: var(--ink-300);
  letter-spacing: .05em;
  margin-bottom: 8px;
}
.ncard h3 {
  font-size: 15px;
  color: var(--ink-900);
  font-weight: 700;
  line-height: 1.6;
  flex: 1;
}
.ncard:hover h3 { color: var(--blue-600); }

/* ---------- 底部 CTA ---------- */
.cta-band {
  background:
    radial-gradient(1000px 300px at 80% 0%, rgba(30, 107, 184, .35), transparent 60%),
    var(--blue-900);
  color: #fff;
  padding: 72px 0;
}
.cta-band .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta-band h2 { font-size: 30px; font-weight: 800; line-height: 1.4; }
.cta-band .sub { margin-top: 12px; color: #9FB4C9; font-size: 15px; }
.cta-band .tel-num {
  font-size: 34px;
  font-weight: 800;
  color: #FFB877;
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}
.cta-band .tel-tip { font-size: 13px; color: #9FB4C9; margin-top: 6px; letter-spacing: .08em; }

/* ---------- 页脚 ---------- */
.footer {
  background: var(--blue-950);
  color: #8FA6BC;
  padding-top: 68px;
  font-size: 14px;
}
.footer-grid {
  display: flex;
  padding-bottom: 52px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.footer-grid > * { flex-grow: 1; flex-basis: 0; margin-right: 48px; }
.footer-grid > *:first-child { flex-grow: 1.4; }
.footer-grid > *:last-child { flex-grow: 1.3; margin-right: 0; }
.footer h4 {
  color: #fff;
  font-size: 15.5px;
  margin-bottom: 20px;
  font-weight: 700;
}
.footer h4::after {
  content: "";
  display: block;
  width: 26px; height: 3px;
  margin-top: 10px;
  border-radius: 2px;
  background: var(--orange-500);
}
.footer .f-about p { line-height: 1.9; font-size: 13.5px; }
.footer .f-about .f-logo { height: 46px; margin-bottom: 18px; filter: brightness(0) invert(1); opacity: .92; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 12px; }
.footer ul a { transition: color .15s; font-size: 13.5px; }
.footer ul a:hover { color: #fff; }
.footer .f-contact li {
  display: flex;
  gap: 10px;
  line-height: 1.7;
  font-size: 13.5px;
}
.footer .f-contact li b { color: #C8D8E8; font-weight: 600; flex: none; }
.footer .f-contact .hi { color: #FFB877; font-weight: 700; font-size: 15px; }

.footer-bar {
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: #61788E;
}
.footer-bar a:hover { color: #9FB4C9; }

/* ---------- 响应式 ---------- */
@media (max-width: 1150px) {
  .grid-products > * { width: calc(33.333% - 22px); }
  .grid-adv > * { width: calc(50% - 22px); }
  .grid-news > * { width: calc(50% - 22px); }
  .hero h1 { font-size: 44px; }
  .about-media .m2 { right: 0; }
}

@media (max-width: 860px) {
  .sec { padding: 64px 0; }
  .container { padding: 0 20px; }
  .topbar .tb-left span:nth-child(n+2) { display: none; }
  .nav { display: none; }
  .logo img { height: 40px; }
  .header .btn { padding: 0 14px; margin-left: 8px; }
  .hero-inner { padding-top: 72px; }
  .hero h1 { font-size: 34px; }
  .hero-stats .container { flex-wrap: wrap; }
  .stat { flex: 0 0 50%; border: none; padding: 20px 10px; }
  .grid-products > * { width: calc(50% - 22px); }
  .grid-cases > * { width: calc(100% - 22px); }
  .about-wrap { flex-direction: column; }
  .about-wrap > .about-txt { width: 100%; margin: 0 0 56px; }
  .about-wrap > .about-media { width: 100%; }
  .about-media .m2 { display: none; }
  .about-media .badge-year { left: 12px; }
  .footer-grid { flex-wrap: wrap; }
  .footer-grid > * { flex-grow: 0; flex-basis: 45%; margin-right: 5%; margin-bottom: 36px; }
}

@media (max-width: 560px) {
  .container { padding: 0 16px; }
  .topbar .tb-right { display: none; }
  .hero-badge { height: auto; padding: 8px 14px; font-size: 12px; line-height: 1.5; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn-phone { justify-content: center; }
  .about-facts li { width: calc(100% - 28px); }
  .faq-item summary { padding: 16px 18px; font-size: 15px; }
  .faq-item .ans { padding: 0 20px 20px 20px; }
  .grid-products > * { width: calc(100% - 22px); }
  .grid-adv > * { width: calc(100% - 22px); }
  .grid-news > * { width: calc(100% - 22px); }
  .hero h1 { font-size: 28px; }
  .sec-head h2 { font-size: 26px; }
  .cta-band h2 { font-size: 23px; }
  .cta-band .tel-num { font-size: 27px; }
  .footer-grid > * { flex-grow: 0; flex-basis: 100%; margin-right: 0; }
}

/* ============================================================
   内页组件（列表页 / 详情页 / 侧栏）
   ============================================================ */

/* 内页头 */
.page-head {
  background: #0B2544;
  background:
    radial-gradient(900px 260px at 85% 10%, rgba(30, 107, 184, .4), transparent 60%),
    linear-gradient(120deg, var(--blue-950), var(--blue-900) 55%, var(--blue-800));
  color: #fff;
  padding: 52px 0 46px;
  position: relative;
  overflow: hidden;
}
.page-head::after {
  content: "";
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(90deg, rgba(0,0,0,.8), transparent 75%);
  -webkit-mask-image: linear-gradient(90deg, rgba(0,0,0,.8), transparent 75%);
  pointer-events: none;
}
.page-head .container { position: relative; z-index: 1; }
.crumb { font-size: 13.5px; color: #9FB4C9; margin-bottom: 16px; }
.crumb a { color: #C8D8E8; }
.crumb a:hover { color: #fff; }
.crumb .sep { margin: 0 8px; color: #54708A; }
.page-head h1 { font-size: 32px; font-weight: 800; line-height: 1.35; letter-spacing: .01em; }
.page-head .lead { margin-top: 12px; color: #9FB4C9; font-size: 15px; max-width: 780px; line-height: 1.8; }

/* 两栏布局（正文 + 侧栏） */
.article-layout {
  display: flex;
  align-items: flex-start;
}
.article-layout > *:first-child { flex: 1; min-width: 0; margin-right: 44px; }
.article-layout > *:last-child { flex: 0 0 318px; }
@media (max-width: 980px) {
  .article-layout { flex-direction: column; }
  .article-layout > *:first-child { margin: 0 0 36px; }
  .article-layout > *:last-child { flex: none; width: 100%; }
}

/* 文章正文排版 */
.article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 44px 48px;
}
@media (max-width: 560px) { .article { padding: 26px 20px; } }

.article-header { margin-bottom: 26px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.article-header .meta { font-size: 13px; color: var(--ink-300); margin-bottom: 12px; letter-spacing: .04em; }
.article-header .meta a { color: var(--blue-500); }
.article-summary {
  background: var(--bg-soft);
  border-left: 4px solid var(--orange-500);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 16px 20px;
  color: var(--ink-700);
  font-size: 15px;
  line-height: 1.85;
  margin: 22px 0 8px;
}
.article-summary b { color: var(--ink-900); }

.article .body { font-size: 15.5px; line-height: 2; color: var(--ink-700); }
.article .body p { margin: 14px 0; }
.article .body h2 {
  font-size: 20px;
  color: var(--ink-900);
  margin: 34px 0 14px;
  padding-left: 13px;
  position: relative;
  line-height: 1.5;
}
.article .body h2::before {
  content: "";
  position: absolute;
  left: 0; top: 5px; bottom: 5px;
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--orange-500), var(--orange-600));
}
.article .body h3 { font-size: 17px; color: var(--ink-900); margin: 26px 0 10px; }
.article .body ul, .article .body ol { margin: 14px 0 14px 24px; }
.article .body li { margin: 8px 0; }
.article .body img { border-radius: var(--radius); margin: 18px 0; }
.article .body a { color: var(--blue-600); border-bottom: 1px dashed var(--blue-500); }
.article .body strong { color: var(--ink-900); }
.article .body table { border-collapse: collapse; margin: 18px 0; width: 100%; font-size: 14px; }
.article .body th, .article .body td { border: 1px solid var(--line); padding: 10px 12px; }
.article .body th { background: var(--bg-soft); color: var(--ink-900); }

/* 文章主图 */
.article-figure { border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 26px; background: #EAF1F8; }
.article-figure img { width: 100%; max-height: 460px; object-fit: cover; }

/* 标签 */
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.tags span {
  padding: 6px 15px;
  border-radius: 999px;
  background: var(--blue-100);
  color: var(--blue-600);
  font-size: 13.5px;
}
.tags span:hover { background: #D9E7F5; }

/* 侧栏 */
.side { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 96px; }
@media (max-width: 980px) { .side { position: static; } }
.side-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.side-card h3 {
  font-size: 16px;
  color: var(--ink-900);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.side-card ul { list-style: none; }
.side-card li { margin-bottom: 10px; font-size: 14px; }
.side-card li a { color: var(--ink-700); display: flex; justify-content: space-between; gap: 8px; }
.side-card li a:hover { color: var(--blue-600); }
.side-card li a::after { content: "›"; color: var(--ink-300); }

.side-contact {
  background: linear-gradient(150deg, var(--blue-900), var(--blue-800));
  color: #fff;
  border: none;
}
.side-contact h3 { color: #fff; border-bottom-color: rgba(255,255,255,.14); }
.side-contact .tel { font-size: 24px; font-weight: 800; color: #FFB877; letter-spacing: .02em; }
.side-contact .tel-tip { font-size: 12.5px; color: #9FB4C9; margin: 4px 0 16px; }
.side-contact ul li { color: #C8D8E8; font-size: 13.5px; }
.side-contact .btn { width: 100%; margin-top: 8px; }

/* 列表卡（横向） */
.lgrid { display: flex; flex-wrap: wrap; margin: -11px; }
.lgrid > * { width: calc(33.333% - 22px); margin: 11px; }
@media (max-width: 980px) { .lgrid > * { width: calc(50% - 22px); } }
@media (max-width: 600px) { .lgrid > * { width: calc(100% - 22px); } }

.lcard {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .25s;
  display: flex;
  flex-direction: column;
}
.lcard:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.lcard .ph { height: 0; padding-top: 62.5%; overflow: hidden; background: #EAF1F8; position: relative; }
.lcard .ph img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.lcard:hover .ph img { transform: scale(1.05); }
.lcard .bd { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.lcard .tags-mini { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.lcard .tags-mini span {
  font-size: 12px; color: var(--blue-600); background: var(--blue-100);
  border-radius: 4px; padding: 3px 9px;
}
.lcard h3 { font-size: 16px; color: var(--ink-900); font-weight: 700; line-height: 1.6; flex: 1; }
.lcard:hover h3 { color: var(--blue-600); }
.lcard .sm { margin-top: 10px; font-size: 13.5px; color: var(--ink-500); line-height: 1.7; }
.lcard .dt { margin-top: 14px; font-size: 12.5px; color: var(--ink-300); }

/* 专题卡（竖版产品图卡） */
.pgrid { display: flex; flex-wrap: wrap; margin: -11px; }
.pgrid > * { width: calc(25% - 22px); margin: 11px; }
@media (max-width: 980px) { .pgrid > * { width: calc(50% - 22px); } }
@media (max-width: 560px) { .pgrid > * { width: calc(100% - 22px); } }

/* 资质卡 */
.cgrid { display: flex; flex-wrap: wrap; margin: -11px; }
.cgrid > * { width: calc(25% - 22px); margin: 11px; }
@media (max-width: 980px) { .cgrid > * { width: calc(50% - 22px); } }
@media (max-width: 560px) { .cgrid > * { width: calc(100% - 22px); } }
.cert-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  text-align: center;
  transition: all .25s;
}
.cert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: #CFE0EF; }
.cert-card .ic {
  width: 58px; height: 58px; margin: 0 auto 16px;
  border-radius: 12px;
  background: var(--blue-100);
  display: flex; align-items: center; justify-content: center;
}
.cert-card .ic svg { width: 28px; height: 28px; stroke: var(--blue-600); }
.cert-card h3 { font-size: 15.5px; color: var(--ink-900); line-height: 1.6; }
.cert-card p { margin-top: 8px; font-size: 13px; color: var(--ink-500); }

/* 关联区块 */
.related { margin-top: 56px; }
.related h2 { font-size: 22px; color: var(--ink-900); margin-bottom: 22px; }

/* 服务要点块（综合服务页用） */
.feature-list { display: flex; flex-wrap: wrap; margin: 12px -8px; }
.feature-list > * { width: calc(50% - 16px); margin: 8px; }
@media (max-width: 700px) { .feature-list > * { width: calc(100% - 16px); } }
.feature-list li {
  list-style: none;
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 16px 18px;
  font-size: 14px;
  color: var(--ink-700);
  line-height: 1.75;
}
.feature-list li b { display: block; color: var(--ink-900); margin-bottom: 4px; }

/* ============================================================
   产品中心（筛选器 + 产品网格）
   ============================================================ */

/* 筛选区 */
.filters {
  background: #fff;
  border: 1px solid #E4EAF1;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 6px 24px;
  margin-bottom: 26px;
}
.filter-row {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 4px 6px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line);
}
.filter-row:last-child { border-bottom: none; }
.filter-row .fl {
  flex: none;
  width: 92px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-900);
  line-height: 32px;
}
.fbtn {
  border: 1px solid transparent;
  background: none;
  padding: 4px 13px;
  border-radius: 999px;
  font-size: 13.5px;
  color: #52606F;
  color: var(--ink-500);
  cursor: pointer;
  line-height: 1.65;
  font-family: inherit;
  transition: all .15s;
}
.fbtn i { font-style: normal; opacity: .55; font-size: 12px; }
.fbtn:hover { color: var(--blue-600); background: var(--blue-100); }
.fbtn.active { background: #16538F; background: var(--blue-700); color: #fff; }
.fbtn.active i { opacity: .75; }

@media (max-width: 640px) {
  .filters { padding: 4px 16px; }
  .filter-row .fl { width: 100%; line-height: 1.6; }
}

.pc-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  font-size: 14px;
  color: var(--ink-500);
}
.pc-bar b { color: var(--orange-500); font-variant-numeric: tabular-nums; }

/* 产品网格 */
.progrid { display: flex; flex-wrap: wrap; margin: -10px; }
.progrid > * { width: calc(25% - 20px); margin: 10px; }
@media (max-width: 1100px) { .progrid > * { width: calc(33.333% - 20px); } }
@media (max-width: 860px) { .progrid { margin: -8px; }
  .progrid > * { width: calc(50% - 16px); margin: 8px; } }
@media (max-width: 560px) { .progrid > * { width: calc(100% - 16px); } }

.procard {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .22s;
  display: flex;
  flex-direction: column;
}
.procard:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: #CFE0EF;
}
.procard .ph {
  position: relative;
  height: 0;
  padding-top: 75%;
  overflow: hidden;
  background: #EAF1F8;
}
.procard .ph img {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.procard:hover .ph img { transform: scale(1.06); }
.procard .bd { padding: 18px 20px 22px; flex: 1; display: flex; flex-direction: column; }
.procard h3 { font-size: 18px; color: var(--ink-900); font-weight: 700; line-height: 1.5; }
.procard .sm {
  margin-top: 8px;
  font-size: 13.5px;
  color: var(--ink-500);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.procard .bt {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}
.procard .tags-mini { display: flex; gap: 6px; flex-wrap: wrap; }
.procard .tags-mini span {
  font-size: 11.5px; color: var(--blue-600); background: var(--blue-100);
  border-radius: 4px; padding: 2px 8px;
}
.procard .ask { font-size: 12.5px; color: var(--orange-500); font-weight: 600; white-space: nowrap; }
.procard .ask:hover { color: var(--orange-600); }

/* ---------- 产品详情页 ---------- */
.pd-hero {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #EAF1F8;
  margin-bottom: 20px;
}
.pd-hero .ph { text-align: center; padding: 26px 20px; }
.pd-hero .ph img { max-width: 100%; max-height: 500px; width: auto; height: auto; border-radius: 0; margin: 0; }
@media (max-width: 560px) { .pd-hero .ph { padding: 16px 10px; } }

.pd-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 6px; }
.pd-tags span {
  font-size: 12px; color: var(--blue-600); background: var(--blue-100);
  border-radius: 4px; padding: 4px 12px;
}

.pd-meta { list-style: none; margin: 0; padding: 0; }
.pd-meta li {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 9px 0; border-bottom: 1px dashed var(--line); font-size: 13.5px;
}
.pd-meta li:last-child { border-bottom: 0; }
.pd-meta li b { color: var(--ink-300); font-weight: 400; flex: none; margin-right: 12px; }
.pd-meta li span { color: var(--ink-900); font-weight: 600; text-align: right; }

.pd-rel { list-style: none; margin: 0; padding: 0; }
.pd-rel li { padding: 8px 0; border-bottom: 1px dashed var(--line); font-size: 13.5px; }
.pd-rel li:last-child { border-bottom: 0; }
.pd-rel a { color: var(--ink-700); display: block; line-height: 1.6; }
.pd-rel a:hover { color: var(--blue-600); }
.pd-rel a::before { content: "·"; color: var(--orange-500); font-weight: 800; margin-right: 8px; }

.pd-cta {
  margin-top: 34px;
  padding: 22px 26px;
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, #0A1E36, #16538F);
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
}
.pd-cta .t { color: #fff; font-size: 17px; font-weight: 700; }
.pd-cta .s { color: #9FB4C9; font-size: 13px; margin-top: 5px; }

/* ---------- Header 窄窗适配（防止导航溢出） ---------- */
@media (max-width: 1280px) {
  .logo img { height: 38px; }
  .nav > a { padding: 10px 10px; }
}
@media (max-width: 1160px) {
  .nav > a { padding: 9px 7px; font-size: 13.5px; }
  .header .btn { padding: 0 13px; margin-left: 8px; }
}

/* 正文表格包裹（窄屏横向滚动，防止列挤压） */
.tb-wrap { overflow-x: auto; margin: 18px 0; -webkit-overflow-scrolling: touch; }
.tb-wrap table { margin: 0; min-width: 100%; }
.tb-wrap + .tb-wrap { margin-top: 12px; }

/* 证书照片墙（荣誉资质） */
.cert-gallery { display: flex; flex-wrap: wrap; margin: -8px; }
.cg-item {
  width: calc(33.333% - 16px); margin: 8px; height: 250px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 10px; display: flex; align-items: center; justify-content: center;
}
.cg-item img { max-width: 100%; max-height: 100%; width: auto; height: auto; }
@media (max-width: 860px) { .cg-item { width: calc(50% - 16px); height: 210px; } }
@media (max-width: 560px) { .cg-item { width: calc(100% - 16px); } }