/* ==========================================================================
   TROVA 特珞维科技 — 官网样式
   设计基调：企业级安全科技风 / 深蓝主色 + 青绿点缀 / 大留白 / 卡片化信息
   ========================================================================== */

:root {
  --brand:        #2f7cff;
  --brand-dark:   #1a5fd0;
  --brand-deep:   #0a1c3d;
  --brand-ink:    #061024;
  --accent:       #00c2a8;
  --accent-warm:  #ff8a3d;

  --text:         #131a2b;
  --text-soft:    #5a6478;
  --text-mute:    #8b93a6;
  --line:         #e6eaf2;
  --line-soft:    #f0f3f8;
  --bg:           #ffffff;
  --bg-soft:      #f7f9fc;
  --bg-deep:      var(--brand-deep);

  --radius:       14px;
  --radius-lg:    20px;
  --shadow-sm:    0 2px 10px rgba(19, 26, 43, .06);
  --shadow:       0 8px 30px rgba(19, 26, 43, .09);
  --shadow-lg:    0 20px 60px rgba(19, 26, 43, .14);

  --container:    1200px;
  --ease:         cubic-bezier(.22, .68, .32, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
               -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ------------------------------------------------------------ 顶部条 */
.topbar {
  background: var(--brand-ink);
  color: rgba(255, 255, 255, .72);
  font-size: 12.5px;
  height: 38px;
}
.topbar-inner {
  height: 38px; display: flex; align-items: center; justify-content: space-between;
}
.topbar-right { display: flex; gap: 26px; }
.topbar a { transition: color .2s; }
.topbar a:hover { color: #fff; }

/* ------------------------------------------------------------ 头部导航 */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line-soft);
  transition: box-shadow .3s;
}
.header.is-stuck { box-shadow: var(--shadow-sm); }
.header-inner {
  height: 76px; display: flex; align-items: center; gap: 32px;
}
.logo { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.logo-mark { width: 38px; height: 38px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-text strong { font-size: 20px; letter-spacing: 2.5px; color: var(--brand-deep); }
.logo-text em {
  font-style: normal; font-size: 11px; letter-spacing: 1.4px;
  color: var(--text-mute); margin-top: 2px;
}

.nav { display: flex; gap: 4px; margin-left: auto; }
.nav a {
  position: relative; padding: 0 17px; height: 76px;
  display: flex; align-items: center;
  font-size: 14.5px; color: var(--text-soft);
  transition: color .22s;
}
.nav a::after {
  content: ""; position: absolute; left: 50%; bottom: 0;
  width: 0; height: 2.5px; border-radius: 2px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  transform: translateX(-50%);
  transition: width .28s var(--ease);
}
.nav a:hover { color: var(--text); }
.nav a:hover::after, .nav a.is-active::after { width: 26px; }
.nav a.is-active { color: var(--brand); font-weight: 600; }

.header-actions { display: flex; align-items: center; gap: 12px; }
.menu-toggle { display: none; width: 40px; height: 40px; flex-direction: column;
  justify-content: center; align-items: center; gap: 5px; }
.menu-toggle span {
  display: block; width: 20px; height: 2px; border-radius: 2px;
  background: var(--text); transition: .3s;
}

/* ------------------------------------------------------------ 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 28px; border-radius: 8px;
  font-size: 14.5px; font-weight: 600; letter-spacing: .4px;
  transition: transform .22s var(--ease), box-shadow .22s, background .22s, color .22s;
  white-space: nowrap;
}
.btn-sm { height: 38px; padding: 0 20px; font-size: 13.5px; border-radius: 7px; }
.btn-primary {
  background: linear-gradient(120deg, var(--brand) 0%, #1d6ae8 100%);
  color: #fff; box-shadow: 0 6px 18px rgba(47, 124, 255, .28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(47, 124, 255, .38); }
.btn-ghost {
  border: 1.5px solid var(--line); color: var(--text); background: #fff;
}
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); transform: translateY(-2px); }
.btn-light {
  background: rgba(255, 255, 255, .12); color: #fff;
  border: 1px solid rgba(255, 255, 255, .28);
  backdrop-filter: blur(6px);
}
.btn-light:hover { background: rgba(255, 255, 255, .22); transform: translateY(-2px); }

/* ------------------------------------------------------------ 区块标题 */
.section { padding: 92px 0; }
.section-sm { padding: 68px 0; }
.section-soft { background: var(--bg-soft); }
.section-deep { background: var(--bg-deep); color: #fff; }

.sec-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.sec-head.left { text-align: left; margin-left: 0; }
.sec-tag {
  display: inline-block; font-size: 12.5px; font-weight: 600; letter-spacing: 2.2px;
  color: var(--brand); background: rgba(47, 124, 255, .09);
  padding: 5px 14px; border-radius: 20px; margin-bottom: 16px;
}
.sec-title {
  font-size: 34px; line-height: 1.35; font-weight: 700; letter-spacing: -.4px;
}
.sec-desc { margin-top: 16px; color: var(--text-soft); font-size: 15.5px; }
.section-deep .sec-desc { color: rgba(255, 255, 255, .68); }

/* ------------------------------------------------------------ HERO */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #061024 0%, #0d2a5c 55%, #10407f 100%);
  color: #fff;
  padding: 104px 0 96px;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 18% 22%, rgba(0, 196, 168, .20), transparent 42%),
    radial-gradient(circle at 84% 14%, rgba(47, 124, 255, .32), transparent 46%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; opacity: .3;
  background-image:
    linear-gradient(rgba(255, 255, 255, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .055) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(ellipse 82% 68% at 50% 42%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 82% 68% at 50% 42%, #000 40%, transparent 100%);
}
.hero-inner { position: relative; z-index: 2; display: grid;
  grid-template-columns: 1.08fr .92fr; gap: 60px; align-items: center; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 13px; letter-spacing: 1.6px; color: #9fe8dd;
  border: 1px solid rgba(159, 232, 221, .32);
  background: rgba(0, 196, 168, .10);
  padding: 7px 16px; border-radius: 30px; margin-bottom: 26px;
}
.hero-eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%; background: #00d4c7;
  box-shadow: 0 0 0 4px rgba(0, 212, 199, .2);
}
.hero-title {
  font-size: 47px; line-height: 1.24; font-weight: 700; letter-spacing: -1px;
}
.hero-title .hl {
  background: linear-gradient(100deg, #5fe3d4 0%, #6aa8ff 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub {
  margin-top: 24px; font-size: 16.5px; line-height: 1.85;
  color: rgba(255, 255, 255, .74); max-width: 560px;
}
.hero-actions { margin-top: 38px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-points {
  margin-top: 46px; display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px; max-width: 560px;
}
.hp-item { padding-left: 14px; border-left: 2px solid rgba(0, 212, 199, .45); }
.hp-item b { display: block; font-size: 20px; letter-spacing: -.3px; }
.hp-item span { font-size: 12.5px; color: rgba(255, 255, 255, .55); }

/* HERO 右侧可视化 */
.hero-visual { position: relative; }
.hero-visual .glow {
  position: absolute; inset: 8% 4% 12% 10%;
  background: radial-gradient(circle, rgba(47, 124, 255, .38), transparent 66%);
  filter: blur(48px);
}
.shield-card {
  position: relative; z-index: 2;
  background: rgba(255, 255, 255, .055);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 22px; padding: 30px;
  backdrop-filter: blur(16px);
  box-shadow: 0 26px 70px rgba(0, 0, 0, .34);
}
.sc-head { display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 18px; border-bottom: 1px solid rgba(255, 255, 255, .12); }
.sc-title { font-size: 14px; letter-spacing: .6px; color: rgba(255, 255, 255, .82); }
.sc-live { display: flex; align-items: center; gap: 7px; font-size: 11.5px; color: #7ee8d8; }
.sc-live i { width: 7px; height: 7px; border-radius: 50%; background: #00d4c7;
  animation: pulse 1.9s infinite; }
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 212, 199, .55); }
  60%      { box-shadow: 0 0 0 8px rgba(0, 212, 199, 0); }
}
.sc-shield { display: flex; justify-content: center; padding: 26px 0 20px; }
.sc-shield svg { width: 132px; height: 132px; }
.sc-ring { fill: none; stroke-linecap: round; transform-origin: 50% 50%; }
.sc-ring-bg { stroke: rgba(255, 255, 255, .10); stroke-width: 5; }
.sc-ring-fg { stroke: url(#lg2); stroke-width: 5; stroke-dasharray: 314; stroke-dashoffset: 62; }
.sc-shield-path {
  fill: rgba(47, 124, 255, .16); stroke: url(#lg2); stroke-width: 2.2; stroke-linejoin: round;
}
.sc-shield-check { fill: none; stroke: #5fe3d4; stroke-width: 3.4; stroke-linecap: round; stroke-linejoin: round; }
.sc-center { text-align: center; margin-top: -78px; margin-bottom: 26px; }
.sc-center b { display: block; font-size: 30px; letter-spacing: -1px; }
.sc-center span { font-size: 11.5px; color: rgba(255, 255, 255, .55); }
.sc-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.sc-metric {
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 11px; padding: 13px 10px; text-align: center;
}
.sc-metric b { display: block; font-size: 17px; color: #7ee8d8; }
.sc-metric span { font-size: 11px; color: rgba(255, 255, 255, .5); }
.sc-layers { margin-top: 16px; display: flex; flex-direction: column; gap: 7px; }
.sc-layer {
  display: flex; align-items: center; gap: 11px;
  font-size: 12.5px; color: rgba(255, 255, 255, .72);
  padding: 9px 13px; border-radius: 9px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .07);
}
.sc-layer i {
  width: 20px; height: 20px; border-radius: 6px; flex-shrink: 0;
  background: rgba(0, 212, 199, .16); color: #5fe3d4;
  display: flex; align-items: center; justify-content: center; font-size: 11px; font-style: normal;
}

/* ------------------------------------------------------------ 数据条 */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden;
}
.stat { background: #fff; padding: 34px 26px; text-align: center; transition: background .25s; }
.stat:hover { background: var(--bg-soft); }
.stat-num {
  font-size: 38px; font-weight: 700; letter-spacing: -1.5px; line-height: 1.1;
  background: linear-gradient(120deg, var(--brand), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat-num span { font-size: 16px; margin-left: 2px; }
.stat-label { font-size: 15px; font-weight: 600; margin-top: 6px; }
.stat-text { font-size: 12.5px; color: var(--text-mute); margin-top: 5px; }

/* ------------------------------------------------------------ 产品卡片 */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.prod-card {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 32px 28px 28px;
  transition: transform .3s var(--ease), box-shadow .3s, border-color .3s;
  overflow: hidden;
}
.prod-card::after {
  content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--brand));
  transition: width .38s var(--ease);
}
.prod-card:hover { transform: translateY(-7px); box-shadow: var(--shadow-lg); border-color: transparent; }
.prod-card:hover::after { width: 100%; }
.pc-icon {
  width: 56px; height: 56px; border-radius: 15px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.pc-icon svg { width: 27px; height: 27px; }
.pc-tag {
  position: absolute; top: 24px; right: 24px; font-size: 11px; font-weight: 600;
  padding: 3px 10px; border-radius: 20px; letter-spacing: .5px;
}
.pc-title { font-size: 18px; font-weight: 700; line-height: 1.45; }
.pc-en { font-size: 11.5px; color: var(--text-mute); letter-spacing: .4px; margin-top: 5px; }
.pc-desc {
  font-size: 13.5px; color: var(--text-soft); margin-top: 14px; line-height: 1.8;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.pc-more {
  margin-top: 18px; display: inline-flex; align-items: center; gap: 6px;
  font-size: 13.5px; font-weight: 600; color: var(--brand);
}
.pc-more svg { width: 15px; height: 15px; transition: transform .25s; }
.prod-card:hover .pc-more svg { transform: translateX(4px); }

/* ------------------------------------------------------------ 解决方案 */
.sol-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.sol-card {
  position: relative; border-radius: var(--radius-lg); padding: 34px 32px;
  background: #fff; border: 1px solid var(--line);
  transition: transform .3s var(--ease), box-shadow .3s;
}
.sol-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.sol-head { display: flex; align-items: center; gap: 15px; margin-bottom: 16px; }
.sol-icon {
  width: 48px; height: 48px; border-radius: 13px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(47, 124, 255, .12), rgba(0, 194, 168, .12));
  color: var(--brand);
}
.sol-icon svg { width: 24px; height: 24px; }
.sol-title { font-size: 19px; font-weight: 700; }
.sol-summary { font-size: 13.5px; color: var(--brand); margin-top: 2px; }
.sol-points { margin-top: 18px; display: flex; flex-direction: column; gap: 11px; }
.sol-points li {
  position: relative; padding-left: 24px; font-size: 13.5px; color: var(--text-soft);
}
.sol-points li::before {
  content: ""; position: absolute; left: 4px; top: 9px;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 3px rgba(0, 194, 168, .14);
}
.sol-value {
  margin-top: 20px; padding-top: 16px; border-top: 1px dashed var(--line);
  font-size: 12.5px; color: var(--text-mute); display: flex; gap: 8px; align-items: flex-start;
}
.sol-value b { color: var(--accent); flex-shrink: 0; }

/* ------------------------------------------------------------ 流程 */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; position: relative; }
.flow::before {
  content: ""; position: absolute; left: 12%; right: 12%; top: 26px; height: 2px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  opacity: .28;
}
.flow-item { position: relative; text-align: center; }
.flow-num {
  width: 54px; height: 54px; margin: 0 auto 20px; border-radius: 50%;
  background: #fff; border: 2px solid var(--brand); color: var(--brand);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700; position: relative; z-index: 2;
  box-shadow: 0 0 0 6px var(--bg-soft);
}
.flow-item:nth-child(3) .flow-num, .flow-item:nth-child(4) .flow-num {
  border-color: var(--accent); color: var(--brand-dark);
}
.flow-title { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.flow-text { font-size: 13px; color: var(--text-soft); padding: 0 10px; }

/* ------------------------------------------------------------ 案例 */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; transition: transform .3s var(--ease), box-shadow .3s;
  display: flex; flex-direction: column;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.case-top {
  padding: 30px 26px 22px;
  background: linear-gradient(135deg, #f4f8ff, #eef7f6);
  position: relative;
}
.case-top::after {
  content: ""; position: absolute; right: -22px; bottom: -22px;
  width: 92px; height: 92px; border-radius: 50%;
  background: rgba(47, 124, 255, .07);
}
.case-type {
  display: inline-block; font-size: 11.5px; font-weight: 600; letter-spacing: 1px;
  color: var(--brand); background: rgba(255, 255, 255, .8);
  padding: 3px 11px; border-radius: 20px; margin-bottom: 13px;
}
.case-name { font-size: 19px; font-weight: 700; position: relative; z-index: 2; }
.case-body { padding: 22px 26px 26px; flex: 1; display: flex; flex-direction: column; }
.case-summary { font-size: 13.5px; color: var(--text-soft); line-height: 1.85; }
.case-results { margin-top: 18px; display: flex; flex-direction: column; gap: 9px; }
.case-results li {
  font-size: 12.5px; color: var(--text-soft); display: flex; gap: 9px; align-items: center;
}
.case-results li::before {
  content: "✓"; color: var(--accent); font-weight: 700; font-size: 13px;
}
.case-link {
  margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line-soft);
  font-size: 13px; font-weight: 600; color: var(--brand);
  display: inline-flex; align-items: center; gap: 6px;
}

/* ------------------------------------------------------------ 新闻 */
.news-list { display: flex; flex-direction: column; gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.news-row {
  background: #fff; padding: 24px 28px; display: grid;
  grid-template-columns: 108px 1fr auto; gap: 26px; align-items: center;
  transition: background .25s;
}
.news-row:hover { background: var(--bg-soft); }
.news-date { font-size: 13px; color: var(--text-mute); font-variant-numeric: tabular-nums; }
.news-cat {
  display: inline-block; font-size: 11.5px; color: var(--brand);
  background: rgba(47, 124, 255, .09); padding: 2px 10px; border-radius: 20px; margin-right: 10px;
}
.news-title { font-size: 16.5px; font-weight: 600; }
.news-sum { font-size: 13px; color: var(--text-soft); margin-top: 5px; }
.news-arrow { color: var(--text-mute); transition: transform .25s, color .25s; }
.news-row:hover .news-arrow { transform: translateX(4px); color: var(--brand); }

/* ------------------------------------------------------------ 合作伙伴 */
.partner-band {
  background: var(--bg-soft); border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft); padding: 44px 0;
}
.partner-inner { display: flex; align-items: center; gap: 40px; flex-wrap: wrap; }
.partner-label { font-size: 13px; color: var(--text-mute); letter-spacing: 1px; flex-shrink: 0; }
.partner-list { display: flex; gap: 14px; flex-wrap: wrap; flex: 1; }
.partner-item {
  padding: 11px 26px; border: 1px solid var(--line); border-radius: 10px;
  background: #fff; font-size: 15px; font-weight: 600; color: var(--text-soft);
  letter-spacing: 1px; transition: .25s;
}
.partner-item:hover { border-color: var(--brand); color: var(--brand); transform: translateY(-2px); }

/* ------------------------------------------------------------ 关于我们 */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.about-visual { position: relative; }
.about-visual .card {
  background: linear-gradient(140deg, var(--brand-deep), #123a72);
  border-radius: 22px; padding: 40px; color: #fff;
  box-shadow: var(--shadow-lg); position: relative; overflow: hidden;
}
.about-visual .card::before {
  content: ""; position: absolute; width: 260px; height: 260px; right: -70px; top: -80px;
  border-radius: 50%; background: radial-gradient(circle, rgba(0, 212, 199, .28), transparent 68%);
}
.about-visual .card h3 { font-size: 26px; margin-bottom: 14px; position: relative; }
.about-visual .card p { font-size: 14px; color: rgba(255, 255, 255, .72); position: relative; }
.about-facts { margin-top: 24px; display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 14px; position: relative; }
.about-fact { background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 12px; padding: 14px 16px; }
.about-fact b { display: block; font-size: 18px; }
.about-fact span { font-size: 12px; color: rgba(255, 255, 255, .55); }
.about-text h2 { font-size: 32px; font-weight: 700; margin-bottom: 20px; letter-spacing: -.4px; }
.about-text p { color: var(--text-soft); margin-bottom: 16px; }
.about-list { margin-top: 24px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.about-li {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 15px 17px; border: 1px solid var(--line); border-radius: 11px;
  background: #fff; transition: .25s;
}
.about-li:hover { border-color: var(--brand); box-shadow: var(--shadow-sm); }
.about-li i {
  width: 24px; height: 24px; border-radius: 7px; flex-shrink: 0; font-style: normal;
  background: rgba(47, 124, 255, .1); color: var(--brand);
  display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700;
}
.about-li div b { display: block; font-size: 14.5px; margin-bottom: 3px; }
.about-li div span { font-size: 12.5px; color: var(--text-mute); }

/* ------------------------------------------------------------ 详情页 */
.page-head {
  background: linear-gradient(135deg, #061024, #10346b);
  color: #fff; padding: 72px 0 76px; position: relative; overflow: hidden;
}
.page-head::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 76% 22%, rgba(47, 124, 255, .3), transparent 48%);
}
.page-head-inner { position: relative; z-index: 2; }
.crumb { font-size: 13px; color: rgba(255, 255, 255, .55); margin-bottom: 14px; }
.crumb a:hover { color: #fff; }
.crumb span { margin: 0 7px; }
.page-head h1 { font-size: 36px; font-weight: 700; letter-spacing: -.6px; }
.page-head .ph-sub { margin-top: 14px; font-size: 15px; color: rgba(255, 255, 255, .68); max-width: 760px; }

.prod-detail { display: grid; grid-template-columns: 1fr 320px; gap: 48px; align-items: start; }
.pd-main h2 { font-size: 25px; font-weight: 700; margin: 34px 0 16px; }
.pd-main h2:first-child { margin-top: 0; }
.pd-main p { color: var(--text-soft); font-size: 15px; line-height: 1.95; }
.pd-features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 18px; }
.pd-feature {
  padding: 20px 22px; border: 1px solid var(--line); border-radius: 13px;
  background: var(--bg-soft); transition: .25s;
}
.pd-feature:hover { border-color: var(--brand); background: #fff; box-shadow: var(--shadow-sm); }
.pd-feature b { display: flex; align-items: center; gap: 9px; font-size: 15px; margin-bottom: 7px; }
.pd-feature b i {
  width: 22px; height: 22px; border-radius: 6px; background: var(--brand); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 11px; font-style: normal;
}
.pd-feature span { font-size: 13px; color: var(--text-soft); line-height: 1.75; }
.pd-side { position: sticky; top: 100px; }
.pd-side-card {
  border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden;
  background: #fff;
}
.pd-side-head {
  padding: 18px 22px; background: var(--brand-deep); color: #fff; font-size: 15px; font-weight: 600;
}
.pd-side-item {
  padding: 14px 22px; border-bottom: 1px solid var(--line-soft); font-size: 13.5px;
  display: flex; align-items: center; gap: 9px; transition: .2s;
}
.pd-side-item:hover { color: var(--brand); padding-left: 26px; }
.pd-side-item::before {
  content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); flex-shrink: 0;
}
.pd-cta {
  margin-top: 20px; padding: 26px; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--brand-deep), #123a72); color: #fff; text-align: center;
}
.pd-cta h4 { font-size: 17px; margin-bottom: 8px; }
.pd-cta p { font-size: 13px; color: rgba(255, 255, 255, .68); margin-bottom: 18px; }
.pd-cta .btn { width: 100%; }

/* ------------------------------------------------------------ 新闻详情 */
.article { max-width: 860px; margin: 0 auto; }
.article-meta {
  display: flex; gap: 16px; align-items: center; font-size: 13px;
  color: var(--text-mute); padding-bottom: 20px; border-bottom: 1px solid var(--line);
  margin-bottom: 30px;
}
.article-body h3 { font-size: 21px; margin: 30px 0 12px; }
.article-body p { color: var(--text-soft); font-size: 15.5px; line-height: 2; margin-bottom: 18px; }
.article-nav {
  margin-top: 44px; padding-top: 26px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.article-nav a { font-size: 14px; color: var(--brand); display: flex; align-items: center; gap: 8px; }

/* ------------------------------------------------------------ 联系页 */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 16px; }
.ci-card {
  display: flex; gap: 16px; padding: 24px 26px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  transition: .25s;
}
.ci-card:hover { border-color: var(--brand); box-shadow: var(--shadow-sm); transform: translateX(4px); }
.ci-icon {
  width: 46px; height: 46px; border-radius: 12px; flex-shrink: 0;
  background: linear-gradient(135deg, rgba(47, 124, 255, .12), rgba(0, 194, 168, .12));
  color: var(--brand); display: flex; align-items: center; justify-content: center;
}
.ci-icon svg { width: 22px; height: 22px; }
.ci-card h4 { font-size: 15.5px; margin-bottom: 6px; }
.ci-card p { font-size: 13.5px; color: var(--text-soft); }
.ci-card a:hover { color: var(--brand); }

.form-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 34px; box-shadow: var(--shadow-sm);
}
.form-card h3 { font-size: 20px; margin-bottom: 6px; }
.form-card > p { font-size: 13.5px; color: var(--text-soft); margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 7px; }
.form-group label i { color: #e5484d; font-style: normal; margin-left: 3px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; height: 44px; padding: 0 14px; font-size: 14px; font-family: inherit;
  border: 1px solid var(--line); border-radius: 9px; background: var(--bg-soft);
  transition: .2s; color: var(--text);
}
.form-group textarea { height: 118px; padding: 12px 14px; resize: vertical; line-height: 1.7; }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--brand); background: #fff;
  box-shadow: 0 0 0 3px rgba(47, 124, 255, .1);
}
.form-submit { width: 100%; height: 48px; margin-top: 6px; }
.form-tip { font-size: 12.5px; color: var(--text-mute); margin-top: 14px; text-align: center; }

/* 提交成功 / 失败提示 */
.form-success { text-align: center; padding: 26px 0 10px; }
.form-success .fs-icon {
  width: 62px; height: 62px; margin: 0 auto 20px; border-radius: 50%;
  background: rgba(0, 194, 168, .12); color: var(--accent);
  display: flex; align-items: center; justify-content: center; font-size: 30px;
}
.form-success h3 { font-size: 21px; margin-bottom: 10px; }
.form-success p { font-size: 14px; color: var(--text-soft); margin-bottom: 22px; line-height: 1.85; }
.form-error {
  background: rgba(229, 72, 77, .08); border: 1px solid rgba(229, 72, 77, .22);
  color: #c33a3f; font-size: 13.5px; padding: 11px 15px; border-radius: 9px;
  margin-bottom: 18px;
}

.map-embed {
  margin-top: 26px; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--line); background: var(--bg-soft);
  height: 300px; display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 12px; color: var(--text-soft);
}
.map-embed svg { width: 46px; height: 46px; color: var(--brand); opacity: .5; }

/* ------------------------------------------------------------ CTA 区 */
.cta-band {
  background: linear-gradient(120deg, var(--brand-deep) 0%, #12427f 100%);
  color: #fff; padding: 66px 0; position: relative; overflow: hidden;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 84% 26%, rgba(0, 212, 199, .26), transparent 44%);
}
.cta-inner {
  position: relative; z-index: 2; display: flex; align-items: center;
  justify-content: space-between; gap: 36px; flex-wrap: wrap;
}
.cta-inner h2 { font-size: 29px; font-weight: 700; }
.cta-inner p { margin-top: 10px; color: rgba(255, 255, 255, .68); font-size: 15px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ------------------------------------------------------------ 页脚 */
.footer { background: var(--brand-ink); color: rgba(255, 255, 255, .6); padding: 66px 0 0; }
.footer-top {
  display: grid; grid-template-columns: 1.7fr 1fr 1fr 1.2fr; gap: 40px;
  padding-bottom: 44px; border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.logo-light .logo-text strong { color: #fff; }
.footer-desc { font-size: 13px; line-height: 1.9; margin-top: 18px; max-width: 330px; }
.footer-cert { margin-top: 20px; display: flex; gap: 9px; flex-wrap: wrap; }
.cert-badge {
  font-size: 11.5px; padding: 4px 11px; border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, .16); color: rgba(255, 255, 255, .72);
}
.footer-col h4 { font-size: 15px; color: #fff; margin-bottom: 18px; font-weight: 600; }
.footer-col ul { display: flex; flex-direction: column; gap: 11px; }
.footer-col li { font-size: 13px; }
.footer-col a { transition: color .2s; }
.footer-col a:hover { color: #5fe3d4; }
.footer-contact li { display: flex; gap: 10px; line-height: 1.7; }
.footer-contact li span { color: rgba(255, 255, 255, .4); flex-shrink: 0; }
.footer-partners {
  display: flex; align-items: center; gap: 30px; padding: 26px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .1); flex-wrap: wrap;
}
.fp-label { font-size: 12.5px; color: rgba(255, 255, 255, .38); flex-shrink: 0; }
.fp-list { display: flex; gap: 12px; flex-wrap: wrap; }
.fp-list span {
  font-size: 12.5px; padding: 5px 15px; border-radius: 7px;
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .08);
}
.footer-bottom {
  padding: 22px 0; display: flex; justify-content: space-between;
  align-items: center; gap: 18px; flex-wrap: wrap; font-size: 12.5px;
  color: rgba(255, 255, 255, .42);
}
.footer-links { display: flex; gap: 20px; }
.footer-links a:hover { color: #5fe3d4; }
/* 备案号链接：与工信部/公安备案查询系统对应 */
.beian-link { transition: color .2s; }
.beian-link:hover { color: #5fe3d4; text-decoration: underline; }

.back-top {
  position: fixed; right: 26px; bottom: 30px; width: 44px; height: 44px;
  border-radius: 50%; background: var(--brand); color: #fff; font-size: 19px;
  box-shadow: 0 8px 24px rgba(47, 124, 255, .38);
  opacity: 0; visibility: hidden; transform: translateY(14px);
  transition: .3s var(--ease); z-index: 90;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--brand-dark); }

/* ------------------------------------------------------------ 错误页 */
.error-page {
  min-height: 74vh; display: flex; flex-direction: column;
  align-items: center; justify-content: center; text-align: center; padding: 60px 24px;
}
.error-code {
  font-size: 108px; font-weight: 800; line-height: 1; letter-spacing: -5px;
  background: linear-gradient(120deg, var(--brand), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.error-page h1 { font-size: 26px; margin: 18px 0 10px; }
.error-page p { color: var(--text-soft); margin-bottom: 28px; }
.error-actions { display: flex; gap: 14px; }

/* ------------------------------------------------------------ 动效 */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: .08s; }
.reveal-d2 { transition-delay: .16s; }
.reveal-d3 { transition-delay: .24s; }
.reveal-d4 { transition-delay: .32s; }
.reveal-d5 { transition-delay: .4s; }

/* ------------------------------------------------------------ 响应式 */
@media (max-width: 1080px) {
  .hero-inner { grid-template-columns: 1fr; gap: 52px; }
  .hero-visual { max-width: 520px; }
  .prod-grid, .case-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .prod-detail { grid-template-columns: 1fr; }
  .pd-side { position: static; }
}

@media (max-width: 860px) {
  .nav {
    position: fixed; top: 0; right: -280px; width: 280px; height: 100vh;
    background: #fff; flex-direction: column; gap: 0; padding: 90px 0 30px;
    box-shadow: -12px 0 40px rgba(0, 0, 0, .14); transition: right .32s var(--ease);
    margin-left: 0; z-index: 99;
  }
  .nav.open { right: 0; }
  .nav a { height: 52px; padding: 0 28px; font-size: 15px; }
  .nav a::after { display: none; }
  .menu-toggle { display: flex; }
  .header-actions .btn { display: none; }
  .section { padding: 66px 0; }
  .sec-title { font-size: 27px; }
  .hero { padding: 66px 0 60px; }
  .hero-title { font-size: 32px; }
  .hero-points { grid-template-columns: 1fr; gap: 14px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .prod-grid, .sol-grid, .case-grid { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .flow::before { display: none; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 38px; }
  .pd-features { grid-template-columns: 1fr; }
  .news-row { grid-template-columns: 1fr; gap: 8px; }
  .news-arrow { display: none; }
  .about-list { grid-template-columns: 1fr; }
  .topbar-inner > span { display: none; }
  .topbar-inner { justify-content: flex-end; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px) {
  .container { padding: 0 18px; }
  .hero-title { font-size: 27px; }
  .stats { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .sc-metrics { grid-template-columns: 1fr; }
  .back-top { right: 16px; bottom: 18px; }
}