@charset "UTF-8";
/* ==========================================================================
   苏州优云网络 · 门户网站样式表
   设计基调：科技白蓝（#0a5cff）+ 大量留白 + 橘色（#ff6a00）点缀
   ========================================================================== */

:root {
  /* 主色：科技蓝（用于结构、标题、图标、深色区块） */
  --c-primary: #0a5cff;
  --c-primary-d: #0040c8;
  --c-primary-l: #3d8bff;
  /* 点缀色：橘色（用于按钮、数据、强调） */
  --c-accent: #ff6a00;
  --c-accent-d: #e05500;
  --c-accent-l: #ff9440;
  --c-gold: #ff9a3d;
  /* 辅助亮色：青蓝（渐变与光晕） */
  --c-cyan: #00b8ff;
  --c-violet: #7c4dff;
  --c-teal: #00c9a7;
  --c-magenta: #ff4d94;
  /* 必填星号 / 校验提示的橘红色 */
  --c-required: #f04e23;
  --c-ink: #0b1220;
  --c-text: #47536b;
  --c-muted: #7b8798;
  --c-line: #e6ebf3;
  --c-bg: #ffffff;
  --c-bg-soft: #f6f9ff;
  --c-bg-dark: #08152e;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-s: 0 2px 10px rgba(10, 92, 255, .08);
  --shadow-m: 0 12px 32px rgba(10, 92, 255, .14);
  --shadow-l: 0 24px 60px rgba(4, 18, 43, .2);
  --wrap: 1240px;
  --header-h: 68px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}

/* 兜底：所有内联 SVG 图标默认 18px、描边取当前文字色、不填充。
   否则未设尺寸的 SVG 会撑满容器并被默认黑色填充（表现为"巨大黑色图标/乱码"）。 */
svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; flex: none; vertical-align: -2px; }
.btn svg { width: 16px; height: 16px; }
.svc-more svg { width: 16px; height: 16px; }
.insight-more svg { width: 16px; height: 16px; }

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
ul, ol { padding-left: 1.25em; }
h1, h2, h3, h4 { color: var(--c-ink); line-height: 1.35; margin: 0 0 .6em; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: clamp(28px, 4vw, 46px); }
h2 { font-size: clamp(24px, 3vw, 36px); }
h3 { font-size: clamp(19px, 2vw, 24px); }
p { margin: 0 0 1em; }
button { font-family: inherit; cursor: pointer; }

.wrap { width: min(100% - 40px, var(--wrap)); margin-inline: auto; }
.section { padding: clamp(38px, 4.6vw, 62px) 0; }
.section--soft { background: var(--c-bg-soft); }
.section--dark { background: linear-gradient(160deg, #08152e 0%, #0a2f6b 60%, #0040c8 100%); color: #cbd8ef; }
.section--dark h2, .section--dark h3 { color: #fff; }

/* ---------- 通用小组件 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: .12em;
  color: var(--c-primary-l); text-transform: uppercase;
  background: rgba(61, 139, 255, .1); padding: 6px 14px; border-radius: 999px;
}
.section--dark .eyebrow { color: #8fc0ff; background: rgba(143, 192, 255, .12); }

.sec-head { max-width: 760px; margin: 0 auto clamp(32px, 4vw, 56px); text-align: center; }
.sec-head p { color: var(--c-muted); margin: 0; font-size: clamp(15px, 1.4vw, 17px); }
.section--dark .sec-head p { color: #a9bcd9; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px; border-radius: 999px; font-weight: 600; font-size: 15px;
  border: 1px solid transparent; transition: all .3s var(--ease); white-space: nowrap;
}
.btn--primary { background: linear-gradient(120deg, #0a5cff 0%, #00b8ff 100%); color: #fff; box-shadow: 0 8px 22px rgba(61, 139, 255, .32); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(61, 139, 255, .42); }
.btn--accent { background: linear-gradient(120deg, #ff8533 0%, #e05500 100%); color: #fff; box-shadow: 0 8px 22px rgba(255, 106, 0, .3); }
.btn--accent:hover { transform: translateY(-2px); }
.btn--ghost { border-color: rgba(255, 255, 255, .55); color: #fff; }
.btn--ghost:hover { background: rgba(255, 255, 255, .14); }
.btn--line { border-color: var(--c-line); color: var(--c-primary); background: #fff; }
.btn--line:hover { border-color: var(--c-primary-l); color: var(--c-primary-l); }

.tag { display: inline-block; font-size: 12px; padding: 3px 10px; border-radius: 6px; background: rgba(61, 139, 255, .1); color: var(--c-primary-l); margin: 0 6px 6px 0; }

.grid { display: grid; gap: 24px; }
.g-2 { grid-template-columns: repeat(2, 1fr); }
.g-3 { grid-template-columns: repeat(3, 1fr); }
.g-4 { grid-template-columns: repeat(4, 1fr); }

/* ==========================================================================
   顶部 / 导航
   ========================================================================== */
.topbar { background: var(--c-bg-dark); color: #9fb3d1; font-size: 13px; }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; height: 38px; gap: 16px; }
.topbar a { color: #9fb3d1; }
.topbar a:hover { color: #fff; }
.topbar .tb-right { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.topbar .tb-phone { color: var(--c-gold); font-weight: 700; letter-spacing: .02em; }

.header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow .3s var(--ease);
}
.header.is-stuck { box-shadow: var(--shadow-m); }
.header .wrap { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 20px; }

.logo { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.logo-img { height: 42px; width: auto; max-width: 180px; object-fit: contain; flex: 0 0 auto; }
.logo-mark {
  width: 42px; height: 42px; border-radius: 11px; flex: 0 0 auto;
  background: linear-gradient(135deg, var(--c-primary-l), var(--c-primary-d));
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 19px;
  box-shadow: 0 6px 16px rgba(11, 60, 140, .3);
}
.logo-txt b { display: block; color: var(--c-ink); font-size: 18px; letter-spacing: .01em; line-height: 1.2; }
.logo-txt span { display: block; font-size: 11px; color: var(--c-muted); letter-spacing: .16em; text-transform: uppercase; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav > a {
  position: relative; padding: 10px 14px; font-size: 15px; font-weight: 500; color: var(--c-ink); border-radius: 8px;
}
.nav > a:hover { color: var(--c-primary-l); background: var(--c-bg-soft); }
.nav > a.is-active { color: var(--c-primary-l); }
.nav > a.is-active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 2px;
  background: var(--c-primary-l); border-radius: 2px;
}
.nav-city { position: relative; }
.nav-city > button {
  display: flex; align-items: center; gap: 6px; background: var(--c-bg-soft);
  border: 1px solid var(--c-line); border-radius: 8px; padding: 9px 14px; font-size: 14px; color: var(--c-ink);
}
.nav-city-panel {
  position: absolute; top: 100%; right: 0; width: 420px; padding: 18px;
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  box-shadow: var(--shadow-l); display: none; z-index: 70;
}
/* 菜单与触发器之间补一段透明桥接区，鼠标可顺畅移入二级菜单（不会再"点不到"） */
.nav-city, .nav-drop { padding-bottom: 14px; margin-bottom: -14px; }
.nav-city-panel::before { content: ""; position: absolute; left: 0; right: 0; top: -14px; height: 14px; }
.nav-city:hover .nav-city-panel, .nav-city.is-open .nav-city-panel { display: block; }
.nav-city-panel h4 { font-size: 13px; color: var(--c-muted); margin: 0 0 12px; letter-spacing: .06em; }
.city-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.city-chips a { font-size: 13px; padding: 6px 12px; border-radius: 8px; background: var(--c-bg-soft); color: var(--c-text); }
.city-chips a:hover { background: var(--c-primary); color: #fff; }
.city-chips a.is-hot { background: rgba(255, 106, 0, .1); color: var(--c-accent-d); font-weight: 600; }

/* 产品服务下拉：卡片网格 */
.nav-svc-panel { width: 660px; padding: 18px; border-radius: 16px; left: 50%; right: auto; transform: translateX(-50%); }
.nav-svc-panel::after { content: ""; position: absolute; top: -7px; left: 50%; width: 12px; height: 12px; background: #fff; border-left: 1px solid var(--c-line); border-top: 1px solid var(--c-line); transform: translateX(-50%) rotate(45deg); border-radius: 2px 0 0 0; }
.nsp-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 12px; padding: 0 4px; }
.nsp-head b { font-size: 14px; color: var(--c-ink); }
.nsp-head span { font-size: 12px; color: var(--c-muted); }
.nsp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.nsp-item {
  display: flex; align-items: flex-start; gap: 10px; padding: 12px; border-radius: 11px; min-height: 78px;
  border: 1px solid transparent; transition: background .2s, border-color .2s, transform .2s;
}
.nsp-item:hover { background: var(--c-bg-soft); border-color: rgba(10, 92, 255, .2); transform: translateY(-1px); }
.nsp-ico {
  width: 34px; height: 34px; border-radius: 10px; flex: none; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(10, 92, 255, .13), rgba(0, 184, 255, .08));
  transition: background .2s;
}
.nsp-ico svg { width: 18px; height: 18px; stroke: var(--c-primary); fill: none; stroke-width: 1.9; }
.nsp-item:hover .nsp-ico { background: var(--c-primary); }
.nsp-item:hover .nsp-ico svg { stroke: #fff; }
.nsp-body { min-width: 0; }
.nsp-body b { display: block; font-size: 13.5px; color: var(--c-ink); line-height: 1.3; }
.nsp-body i { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; font-style: normal; font-size: 12px; line-height: 1.55; color: var(--c-muted); margin-top: 4px; overflow: hidden; min-height: 3.1em; }
.nsp-price { margin-left: auto; flex: none; align-self: flex-start; font-size: 12px; font-weight: 800; color: var(--c-accent-d); white-space: nowrap; padding-top: 2px; }
.nsp-foot { display: flex; gap: 8px; margin-top: 14px; padding-top: 13px; border-top: 1px dashed var(--c-line); }
.nsp-foot a { font-size: 12.5px; font-weight: 600; padding: 8px 14px; border-radius: 9px; border: 1px solid transparent; transition: transform .18s, filter .18s, box-shadow .18s; }
.nsp-foot a.is-case { background: rgba(10, 92, 255, .10); color: #0a5cff; border-color: rgba(10, 92, 255, .18); }
.nsp-foot a.is-faq { background: rgba(124, 77, 255, .11); color: #6b3fe0; border-color: rgba(124, 77, 255, .2); }
.nsp-foot a.is-cta { margin-left: auto; background: linear-gradient(135deg, #ff8a3d, #ff6a00); color: #fff; box-shadow: 0 5px 14px rgba(255, 106, 0, .28); }
.nsp-foot a:hover { transform: translateY(-1px); filter: brightness(.97); }

.header-cta { display: flex; align-items: center; gap: 12px; }
.header-phone { font-size: 17px; font-weight: 800; color: var(--c-accent-d); letter-spacing: .01em; white-space: nowrap; display: inline-flex; align-items: baseline; gap: 6px; }
.header-phone i { font-style: normal; font-size: 13px; font-weight: 600; color: var(--c-muted); }
.header-phone b { font-weight: 800; }
.burger { display: none; width: 42px; height: 42px; border: 1px solid var(--c-line); background: #fff; border-radius: 10px; }
.burger i { display: block; width: 18px; height: 2px; background: var(--c-ink); margin: 4px auto; transition: .3s var(--ease); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(145deg, #04122b 0%, #0a3d8f 38%, #0a5cff 72%, #00a2ff 100%);
  color: #fff; padding: clamp(56px, 8vw, 110px) 0 clamp(40px, 6vw, 80px);
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, transparent 1px);
  background-size: 56px 56px; mask-image: radial-gradient(circle at 30% 20%, #000 0%, transparent 72%);
}
.hero::after {
  content: ""; position: absolute; width: 620px; height: 620px; right: -180px; top: -220px; border-radius: 50%;
  background: radial-gradient(circle, rgba(61, 139, 255, .55), transparent 62%);
}
.hero .wrap { position: relative; z-index: 2; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.hero h1 { color: #fff; font-size: clamp(32px, 5vw, 58px); line-height: 1.18; margin-bottom: 20px; }
.hero h1 em { font-style: normal; color: var(--c-gold); }
.hero-lead { font-size: clamp(15px, 1.6vw, 19px); color: #c3d5f2; max-width: 620px; margin-bottom: 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 26px; list-style: none; padding: 0; margin: 0; }
.hero-points li { display: flex; align-items: center; gap: 8px; font-size: 14px; color: #b9cbe8; }
.hero-points li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--c-gold); }

.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 40px; padding-top: 28px; border-top: 1px solid rgba(255, 255, 255, .16); }
.hero-stats b { display: block; font-size: clamp(22px, 2.6vw, 34px); color: #fff; line-height: 1.2; }
.hero-stats span { font-size: 13px; color: #9fb6d8; }

.hero-card {
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--radius-lg); padding: 26px; backdrop-filter: blur(8px); box-shadow: var(--shadow-l);
}
.hero-card h3 { color: #fff; font-size: 20px; margin-bottom: 4px; }
.hero-card .hc-sub { color: #a8bee0; font-size: 13px; margin-bottom: 18px; }
.hero-form .field { margin-bottom: 12px; }
.hero-form input, .hero-form textarea, .hero-form select {
  width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid rgba(255, 255, 255, .2);
  background: rgba(255, 255, 255, .08); color: #fff; font-size: 14px; font-family: inherit;
}
.hero-form input::placeholder, .hero-form textarea::placeholder { color: #8ba3c6; }
.hero-form input:focus, .hero-form textarea:focus, .hero-form select:focus { outline: 2px solid rgba(255, 106, 0, .6); outline-offset: 1px; }
/* 深色表单里的下拉：收起时白字，展开的选项必须白底深字才看得清 */
.hero-form select option, .cta-form select option,
.msg-form select option, .msg-form select { background: #ffffff; color: #0b1220; }
.hero-form button { width: 100%; border: 0; }
.form-note { font-size: 12px; color: #8ba3c6; margin: 10px 0 0; text-align: center; }

/* ==========================================================================
   服务卡片
   ========================================================================== */
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.svc-card {
  position: relative; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 30px 28px; transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
  overflow: hidden;
}
.svc-card::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px;
  background: linear-gradient(90deg, var(--c-primary-l), var(--c-accent)); transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease);
}
.svc-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-l); border-color: transparent; }
.svc-card:hover::after { transform: scaleX(1); }
.svc-ico { width: 56px; height: 56px; border-radius: 15px; display: grid; place-items: center; background: linear-gradient(135deg, rgba(61, 139, 255, .12), rgba(61, 139, 255, .04)); margin-bottom: 18px; }
.svc-ico svg { width: 28px; height: 28px; stroke: var(--c-primary-l); fill: none; stroke-width: 1.8; }
.svc-card h3 { font-size: 20px; margin-bottom: 8px; }
.svc-card h3 a:hover { color: var(--c-primary-l); }
.svc-sub { font-size: 13px; color: var(--c-muted); margin-bottom: 14px; min-height: 40px; }
.svc-desc { font-size: 14.5px; color: var(--c-text); margin-bottom: 16px; }
.svc-price { font-size: 14px; font-weight: 700; color: var(--c-accent-d); margin-bottom: 14px; }
.svc-more { font-size: 14px; font-weight: 600; color: var(--c-primary-l); }
.svc-more:hover { gap: 12px; }

/* ==========================================================================
   数据条 / 优势
   ========================================================================== */
.stats-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stats-band > div { padding: 22px 10px; border-right: 1px solid rgba(255, 255, 255, .12); }
.stats-band > div:last-child { border-right: 0; }
.stats-band b { display: block; font-size: clamp(26px, 3.4vw, 44px); color: var(--c-gold); line-height: 1.1; }
.stats-band span { font-size: 14px; color: #a9bcd9; }

/* 服务保障：等宽等高网格（桌面 5 列一行，卡片尺寸完全一致） */
.adv-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.adv-grid > .adv-item { display: flex; flex-direction: column; }
.adv-item { background: #fff; border-radius: var(--radius-lg); padding: 24px 20px; border: 1px solid var(--c-line); height: 100%; }
.adv-item .adv-n { font-size: 13px; font-weight: 800; color: var(--c-primary-l); letter-spacing: .1em; margin-bottom: 10px; }
.adv-item h3 { font-size: 17px; margin-bottom: 8px; }
.adv-item p { font-size: 13.5px; margin: 0; color: var(--c-muted); line-height: 1.65; }

/* 发展历程：极简横向时间轴 */
.ms-timeline { display: grid; grid-template-columns: repeat(auto-fit, minmax(0, 1fr)); gap: 0; }
.ms-cell { position: relative; padding-right: 22px; }
.ms-year { font-size: 26px; font-weight: 800; color: var(--c-primary); letter-spacing: -.01em; line-height: 1; }
.ms-rail { position: relative; height: 22px; margin-top: 12px; }
.ms-rail::before { content: ""; position: absolute; left: 0; right: 0; top: 9px; height: 1px; background: var(--c-line); }
.ms-cell:last-child .ms-rail::before { right: 50%; }
.ms-rail span { position: absolute; left: 0; top: 5px; width: 9px; height: 9px; border-radius: 50%; background: #fff; border: 2px solid var(--c-primary); }
.ms-cell:hover .ms-rail span { background: var(--c-primary); }
.ms-title { display: block; font-size: 15.5px; color: var(--c-ink); margin-top: 10px; }
.ms-desc { margin: 6px 0 0; font-size: 13.5px; color: var(--c-muted); line-height: 1.65; }

/* ==========================================================================
   流程时间轴
   ========================================================================== */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; position: relative; }
.step { text-align: center; padding: 0 6px; position: relative; }
.step-n {
  width: 46px; height: 46px; margin: 0 auto 14px; border-radius: 50%; display: grid; place-items: center;
  background: #fff; border: 2px solid var(--c-primary-l); color: var(--c-primary-l); font-weight: 800; font-size: 17px; position: relative; z-index: 2;
}
.step:not(:last-child)::after {
  content: ""; position: absolute; top: 23px; left: 50%; width: 100%; height: 2px; background: linear-gradient(90deg, var(--c-primary-l), rgba(61, 139, 255, .25)); z-index: 1;
}
.step h4 { font-size: 16px; margin-bottom: 6px; }
.step p { font-size: 13.5px; color: var(--c-muted); margin: 0; }

/* ==========================================================================
   案例
   ========================================================================== */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); overflow: hidden; transition: transform .35s var(--ease), box-shadow .35s var(--ease); }
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-l); }
.case-thumb { height: 168px; position: relative; background: linear-gradient(135deg, #0040c8, #0a5cff); display: grid; place-items: center; overflow: hidden; }
.case-thumb span { color: rgba(255, 255, 255, .92); font-size: 20px; font-weight: 700; letter-spacing: .04em; padding: 0 20px; text-align: center; }
.case-thumb::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 70% 20%, rgba(255, 255, 255, .22), transparent 60%); }
.case-body { padding: 22px 24px 26px; }
.case-meta { font-size: 12px; color: var(--c-muted); margin-bottom: 8px; }
.case-body h3 { font-size: 18px; margin-bottom: 10px; }
.case-body h3 a:hover { color: var(--c-primary-l); }
.case-sum { font-size: 14px; color: var(--c-muted); }
.case-res { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 16px; padding-top: 16px; border-top: 1px dashed var(--c-line); }
.case-res div { background: var(--c-bg-soft); border-radius: 10px; padding: 10px 12px; }
.case-res b { display: block; color: var(--c-accent-d); font-size: 16px; }
.case-res span { font-size: 12px; color: var(--c-muted); }

/* ==========================================================================
   城市
   ========================================================================== */
.city-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.city-card {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 16px 20px; border-radius: var(--radius); border: 1px solid var(--c-line); background: #fff;
  transition: all .3s var(--ease);
}
.city-card:hover { background: var(--c-primary); border-color: var(--c-primary); color: #fff; transform: translateY(-3px); box-shadow: var(--shadow-m); }
.city-card b { font-size: 17px; }
.city-card small { font-size: 12px; color: var(--c-muted); }
.city-card:hover small { color: rgba(255, 255, 255, .8); }
.city-region { margin-bottom: 14px; font-size: 13px; color: var(--c-muted); font-weight: 700; letter-spacing: .06em; }

/* ==========================================================================
   新闻
   ========================================================================== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 26px; display: flex; flex-direction: column; transition: transform .3s var(--ease), box-shadow .3s var(--ease); }
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-m); }
.news-cat { align-self: flex-start; font-size: 12px; padding: 4px 10px; border-radius: 6px; background: rgba(61, 139, 255, .1); color: var(--c-primary-l); margin-bottom: 12px; }
.news-card h3 { font-size: 18px; margin-bottom: 10px; }
.news-card h3 a:hover { color: var(--c-primary-l); }
.news-sum { font-size: 14px; color: var(--c-muted); flex: 1; }
.news-date { font-size: 12.5px; color: var(--c-muted); margin-top: 14px; }

/* ==========================================================================
   FAQ 手风琴
   ========================================================================== */
.faq-list { max-width: 900px; margin: 0 auto; }
.faq-item { border: 1px solid var(--c-line); border-radius: var(--radius); background: #fff; margin-bottom: 14px; overflow: hidden; }
.faq-q { width: 100%; text-align: left; border: 0; background: none; padding: 18px 56px 18px 22px; font-size: 16px; font-weight: 600; color: var(--c-ink); position: relative; }
.faq-q::after { content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); font-size: 22px; color: var(--c-primary-l); font-weight: 400; transition: transform .3s var(--ease); }
.faq-item.is-open .faq-q::after { content: "−"; }
.faq-a { display: none; padding: 0 22px 20px; font-size: 15px; color: var(--c-text); border-top: 1px solid var(--c-line); padding-top: 16px; }
.faq-item.is-open .faq-a { display: block; }
.faq-a p:last-child { margin-bottom: 0; }

.faq-cats { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 32px; }
.faq-cats button { border: 1px solid var(--c-line); background: #fff; border-radius: 999px; padding: 8px 18px; font-size: 14px; color: var(--c-text); transition: .25s var(--ease); }
.faq-cats button:hover, .faq-cats button.is-on { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }

/* ==========================================================================
   CTA
   ========================================================================== */
.cta-band {
  background: linear-gradient(120deg, var(--c-primary-d), var(--c-primary) 55%, var(--c-primary-l));
  color: #fff; border-radius: var(--radius-lg); padding: clamp(32px, 5vw, 56px);
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center;
}
.cta-band h2 { color: #fff; margin-bottom: 10px; }
.cta-band p { color: rgba(255, 255, 255, .82); margin: 0; }
.cta-form { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.cta-form input, .cta-form select, .cta-form textarea {
  width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid rgba(255, 255, 255, .28);
  background: rgba(255, 255, 255, .12); color: #fff; font-size: 14px; font-family: inherit;
}
.cta-form input::placeholder, .cta-form textarea::placeholder { color: rgba(255, 255, 255, .6); }
.cta-form .full { grid-column: 1 / -1; }
.cta-form button { grid-column: 1 / -1; border: 0; }
.form-tip { font-size: 12.5px; margin-top: 8px; min-height: 18px; }
.form-tip.ok { color: #b9f6ca; }
.form-tip.err { color: #ffc9c9; }

/* ==========================================================================
   面包屑 / 内页头
   ========================================================================== */
.page-head { background: linear-gradient(150deg, #08152e, #0040c8); color: #fff; padding: clamp(38px, 5vw, 64px) 0; }
.page-head h1 { color: #fff; font-size: clamp(26px, 3.4vw, 40px); margin-bottom: 10px; }
.page-head p { color: #b9cbe8; margin: 0; max-width: 720px; }
.crumb { font-size: 13px; color: #96aecd; margin-bottom: 14px; }
.crumb a { color: #c9daf3; }
.crumb a:hover { color: #fff; }
.crumb span { margin: 0 6px; opacity: .6; }

/* 文章正文 */
.article { max-width: 820px; }
.article h2 { margin-top: 1.6em; font-size: clamp(21px, 2.2vw, 27px); padding-left: 14px; border-left: 4px solid var(--c-primary-l); }
.article h3 { margin-top: 1.3em; font-size: 19px; }
.article p, .article li { font-size: 16px; color: var(--c-text); }
.article li { margin-bottom: 8px; }
.article img { border-radius: var(--radius); margin: 20px 0; }
.article-meta { display: flex; flex-wrap: wrap; gap: 18px; font-size: 13px; color: var(--c-muted); padding-bottom: 18px; border-bottom: 1px solid var(--c-line); margin-bottom: 26px; }

.side-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 24px; margin-bottom: 20px; }
.side-card h3 { font-size: 17px; margin-bottom: 14px; padding-bottom: 12px; border-bottom: 1px solid var(--c-line); }
.side-list { list-style: none; padding: 0; margin: 0; }
.side-list li { padding: 10px 0; border-bottom: 1px dashed var(--c-line); font-size: 14.5px; }
.side-list li:last-child { border-bottom: 0; }
.side-list a:hover { color: var(--c-primary-l); }

.layout-2 { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 40px; align-items: start; }

/* 服务详情页 */
.svc-hero { display: grid; grid-template-columns: 1.05fr .95fr; gap: 44px; align-items: center; }
.svc-hero h1 { font-size: clamp(26px, 3.4vw, 42px); }
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feat-item { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 24px; }
.feat-item b { display: block; font-size: 16px; color: var(--c-ink); margin-bottom: 8px; }
.feat-item p { font-size: 14px; color: var(--c-muted); margin: 0; }
.hl-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; text-align: center; }
.hl-grid b { display: block; font-size: clamp(22px, 2.6vw, 32px); color: #fff; }
.hl-grid span { font-size: 13px; color: #a9bcd9; }

/* 分页 */
.pager { display: flex; justify-content: center; gap: 8px; margin-top: 40px; flex-wrap: wrap; }
.pager a, .pager span { padding: 8px 15px; border: 1px solid var(--c-line); border-radius: 8px; font-size: 14px; background: #fff; }
.pager a:hover { border-color: var(--c-primary-l); color: var(--c-primary-l); }
.pager .on { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }

/* ==========================================================================
   底部
   ========================================================================== */
.footer { background: var(--c-bg-dark); color: #9fb3d1; padding-top: clamp(44px, 6vw, 72px); }
.footer h4 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.footer-cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: 40px; padding-bottom: 40px; }
.footer a { color: #9fb3d1; font-size: 14.5px; }
.footer a:hover { color: #fff; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 10px; }
.footer .f-about p { font-size: 14px; line-height: 1.9; }
.footer .f-contact b { display: block; color: var(--c-gold); font-size: 22px; line-height: 1.4; }
.footer .f-contact small { display: block; font-size: 13px; margin-bottom: 12px; }
.f-links { border-top: 1px solid rgba(255, 255, 255, .1); padding: 18px 0; font-size: 13px; }
.f-links .wrap { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.f-links a { font-size: 13px; }
.f-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding: 20px 0 28px; font-size: 13px; }
.f-bottom .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* 移动端悬浮条 */
.mobar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 80; display: none;
  background: #fff; border-top: 1px solid var(--c-line); box-shadow: 0 -6px 20px rgba(7, 22, 53, .1);
}
.mobar .wrap { display: grid; grid-template-columns: repeat(3, 1fr); height: 58px; }
.mobar a { display: grid; place-items: center; font-size: 13px; color: var(--c-ink); gap: 2px; }
.mobar a svg { width: 20px; height: 20px; stroke: var(--c-primary); fill: none; stroke-width: 1.8; }
.mobar a:first-child { background: var(--c-accent); color: #fff; }
.mobar a:first-child svg { stroke: #fff; }

/* 回到顶部 */
.totop {
  position: fixed; right: 18px; bottom: 76px; width: 44px; height: 44px; border-radius: 50%;
  background: #fff; border: 1px solid var(--c-line); box-shadow: var(--shadow-m);
  display: grid; place-items: center; opacity: 0; pointer-events: none; transition: .3s var(--ease); z-index: 70;
}
.totop.is-show { opacity: 1; pointer-events: auto; }
.totop svg { width: 18px; height: 18px; stroke: var(--c-primary); fill: none; stroke-width: 2; }

/* 成功/提示浮层 */
.toast {
  position: fixed; left: 50%; top: 24px; transform: translate(-50%, -20px); z-index: 200;
  background: #0f172a; color: #fff; padding: 12px 22px; border-radius: 999px; font-size: 14px;
  opacity: 0; transition: .3s var(--ease); pointer-events: none;
}
.toast.is-show { opacity: 1; transform: translate(-50%, 0); }

/* ==========================================================================
   导航下拉（产品服务）
   ========================================================================== */
.nav { gap: 2px; }
.nav > a { padding: 10px 11px; font-size: 14.5px; }
.nav-drop { position: relative; }
.nav-drop-link {
  display: inline-block; padding: 10px 11px; font-size: 14.5px; font-weight: 500;
  color: var(--c-ink); border-radius: 8px; transition: background .25s var(--ease), color .25s var(--ease);
}
.nav-drop:hover .nav-drop-link, .nav-drop-link.is-active { color: var(--c-primary-l); background: var(--c-bg-soft); }
.nav-drop:hover .nav-city-panel { display: block; }

/* ==========================================================================
   板块层次：让不同区块一眼能区分开
   ========================================================================== */
.section { position: relative; padding: clamp(38px, 4.6vw, 62px) 0; }
.section--soft {
  background: linear-gradient(180deg, #f6f9ff 0%, #eff5ff 100%);
  box-shadow: inset 0 1px 0 rgba(10, 92, 255, .07), inset 0 -1px 0 rgba(10, 92, 255, .05);
}
.section--soft::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(10, 92, 255, .3), transparent);
}
.section--glow::after {
  content: ""; position: absolute; left: 50%; top: -80px; transform: translateX(-50%);
  width: min(1000px, 92%); height: 340px; pointer-events: none; z-index: 0;
  background: radial-gradient(ellipse at center, rgba(10, 92, 255, .12), transparent 70%);
}
.section--glow > .wrap { position: relative; z-index: 1; }
.section--dark { box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06); }

/* 模块标题下方一道橘色短线，让标题更"立"起来 */
.sec-head { position: relative; }
.sec-head::after {
  content: ""; display: block; width: 72px; height: 3px; border-radius: 2px; margin: 18px auto 0;
  background: linear-gradient(90deg, var(--c-accent), rgba(255, 106, 0, .22));
}
.sec-head p { margin-top: 14px; }

/* 卡片阴影统一加强，层次更分明 */
/* 页脚按钮：覆盖 .footer a 的灰色链接色，保证白字清晰可读 */
.footer .btn, .footer .btn:hover { color: #fff; font-weight: 700; }
.footer .btn--accent { background: #fff; color: #e05500; }
.footer .btn--accent:hover { background: #ff6a00; color: #fff; }

/* 深色卡片内的表单（如案例页"获取同类方案"）：占位文字与输入文字高对比 */
.side-card form input, .side-card form textarea { color: #fff; }
.side-card form input::placeholder, .side-card form textarea::placeholder { color: rgba(255, 255, 255, .92); font-weight: 500; }
.side-card form .form-tip { color: #ffd9c2; }

.svc-card, .case-card, .news-card, .adv-item, .feat-item, .xcard, .contact-card {
  box-shadow: 0 1px 2px rgba(11, 18, 32, .04), 0 8px 24px rgba(11, 18, 32, .05);
}
.svc-card { border-top: 3px solid transparent; }
.svc-card:hover { border-top-color: var(--c-accent); }

/* ==========================================================================
   首页 · 行业观察与方法论
   ========================================================================== */
.insight-wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: 26px; align-items: stretch; }
/* 右侧列表自适应填满左卡高度，消除首个新闻下方的空白 */
.insight-list { display: flex; flex-direction: column; gap: 14px; height: 100%; }
/* 列表项均分高度，彻底消除首个新闻下方的空白 */
.insight-item { flex: 1 1 0; min-height: 92px; }
.insight-item .im-thumb {
  flex: none; width: 108px; height: 78px; border-radius: 10px;
  background-size: cover; background-position: center; background-color: var(--c-bg-dark);
}
.insight-feature {
  display: flex; flex-direction: column; height: 100%; background: #fff;
  border: 1px solid var(--c-line); border-radius: 20px; overflow: hidden;
  box-shadow: 0 10px 30px rgba(11, 18, 32, .07);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.insight-feature:hover { transform: translateY(-6px); box-shadow: var(--shadow-l); }
.insight-feature .if-body { flex: 1 1 auto; display: flex; flex-direction: column; justify-content: center; }
.insight-feature {
  display: block; background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius-lg); overflow: hidden; transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.insight-feature:hover { transform: translateY(-6px); box-shadow: var(--shadow-l); }
.insight-cover {
  position: relative; min-height: 252px; padding: 26px; color: #fff; overflow: hidden;
  display: flex; flex-direction: column; justify-content: flex-end;
  background: linear-gradient(145deg, #06152e 0%, #0a3266 45%, #0a5cff 100%);
}
.insight-cover::after {
  content: ""; position: absolute; width: 420px; height: 420px; right: -140px; top: -180px; border-radius: 50%;
  background: radial-gradient(circle, rgba(61, 139, 255, .55), transparent 62%);
}
.insight-cover > * { position: relative; z-index: 2; }
.insight-cat {
  align-self: flex-start; font-size: 12px; padding: 4px 12px; border-radius: 999px;
  background: rgba(245, 166, 35, .18); color: var(--c-gold); font-weight: 600; margin-bottom: auto;
}
.insight-date { display: flex; align-items: baseline; gap: 8px; margin: 18px 0 10px; }
.insight-date b { font-size: 36px; color: var(--c-gold); line-height: 1; }
.insight-date i { font-style: normal; font-size: 13px; color: #a9bcd9; }
.insight-cover h3 { color: #fff; font-size: clamp(20px, 2.1vw, 27px); margin: 0; }
.insight-body { padding: 22px 26px 26px; }
.insight-body p { color: var(--c-muted); font-size: 14.5px; margin: 0 0 14px; }
.insight-more { color: var(--c-primary-l); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }
.insight-more svg { width: 16px; height: 16px; }

.insight-list { display: flex; flex-direction: column; gap: 14px; }
.insight-item {
  display: flex; gap: 16px; align-items: center; padding: 16px 18px; background: #fff;
  border: 1px solid var(--c-line); border-left: 3px solid transparent; border-radius: 14px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.insight-item:hover { transform: translateX(4px); border-color: transparent; border-left-color: var(--c-accent); box-shadow: var(--shadow-m); }
.insight-thumb {
  flex: 0 0 62px; height: 62px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(10, 92, 255, .2), rgba(0, 184, 255, .1));
  transition: background .3s var(--ease);
}
.insight-item:hover .insight-thumb { background: linear-gradient(135deg, rgba(255, 106, 0, .2), rgba(255, 106, 0, .05)); }
.insight-item:hover .insight-thumb svg { stroke: var(--c-accent); }
.insight-thumb svg { width: 26px; height: 26px; stroke: var(--c-primary-l); fill: none; stroke-width: 1.6; }
.insight-txt { min-width: 0; display: flex; flex-direction: column; justify-content: center; }
.insight-title {
  font-size: 15.5px; font-weight: 700; color: var(--c-ink); line-height: 1.5; margin: 2px 0 6px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.insight-item:hover .insight-title { color: var(--c-primary); }
.insight-txt h4 { margin: 0 0 4px; font-size: 16px; }
.insight-txt p {
  margin: 0 0 6px; font-size: 13.5px; color: var(--c-muted);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.insight-meta { font-size: 12px; color: var(--c-muted); }

.insight-strip {
  margin-top: 26px; padding: 24px; border-radius: var(--radius-lg);
  background: linear-gradient(140deg, #08152e, #0040c8 70%, #0a5cff);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
}
.insight-strip-item { padding-left: 16px; border-left: 2px solid rgba(245, 166, 35, .5); }
.insight-strip-item b { display: block; color: #fff; font-size: 15px; margin-bottom: 4px; }
.insight-strip-item span { font-size: 13px; color: #a9bcd9; }

/* ==========================================================================
   联系我们
   ========================================================================== */
.contact-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.contact-card {
  text-align: center; padding: 28px 20px; background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius-lg); transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.contact-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-m); border-color: transparent; }
.cc-ico {
  width: 54px; height: 54px; margin: 0 auto 14px; border-radius: 15px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(10, 92, 255, .2), rgba(0, 184, 255, .1));
}
.cc-ico svg { width: 26px; height: 26px; stroke: var(--c-primary-l); fill: none; stroke-width: 1.8; }
.contact-card b { display: block; font-size: 14px; color: var(--c-muted); font-weight: 500; }
.contact-card em { display: block; font-style: normal; font-size: 19px; font-weight: 800; color: var(--c-ink); margin: 4px 0 6px; }
.contact-card small { font-size: 12.5px; color: var(--c-muted); }
.contact-info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 24px; }

.msg-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 32px; align-items: start; }
.msg-form-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 32px; }
.msg-form { display: grid; gap: 16px; }
.mf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.msg-form label { display: block; font-size: 14px; font-weight: 600; color: var(--c-ink); }
.msg-form label i { color: var(--c-accent); font-style: normal; margin-left: 2px; }
.msg-form input, .msg-form select, .msg-form textarea {
  width: 100%; margin-top: 8px; padding: 12px 14px; border: 1px solid var(--c-line); border-radius: 10px;
  background: var(--c-bg-soft); font-size: 14.5px; font-family: inherit; color: var(--c-ink);
}
.msg-form input:focus, .msg-form select:focus, .msg-form textarea:focus { outline: 2px solid rgba(61, 139, 255, .35); background: #fff; }
.mf-full { grid-column: 1 / -1; }

/* ==========================================================================
   产品服务（图文交替）
   ========================================================================== */
/* ==========================================================================
   产品服务列表页 · 动态 Hero
   ========================================================================== */
.svc-hero-band {
  position: relative; overflow: hidden;
  padding: clamp(38px, 5vw, 64px) 0 clamp(78px, 9vw, 110px);
  background: radial-gradient(120% 85% at 12% 0%, #0a3d8f 0%, #06152f 52%, #050d1f 100%);
  color: #fff;
}
.svc-hero-band .crumb { color: #8fa8c9; position: relative; z-index: 3; }
.svc-hero-band .crumb a { color: #c9daf3; }
.svc-hero-band .crumb a:hover { color: #fff; }
/* 浮动光斑 */
.shb-glow { position: absolute; border-radius: 50%; filter: blur(64px); pointer-events: none; will-change: transform; }
.shb-glow--1 { width: 540px; height: 540px; left: -140px; top: -180px; background: radial-gradient(circle, rgba(10, 92, 255, .8), transparent 66%); animation: shbDrift1 17s ease-in-out infinite; }
.shb-glow--2 { width: 480px; height: 480px; right: -120px; top: -80px; background: radial-gradient(circle, rgba(0, 184, 255, .55), transparent 66%); animation: shbDrift2 21s ease-in-out infinite; }
.shb-glow--3 { width: 400px; height: 400px; left: 36%; bottom: -220px; background: radial-gradient(circle, rgba(255, 106, 0, .3), transparent 66%); animation: shbDrift3 19s ease-in-out infinite; }
@keyframes shbDrift1 { 0%, 100% { transform: translate(0, 0) scale(1); } 50% { transform: translate(46px, 34px) scale(1.12); } }
@keyframes shbDrift2 { 0%, 100% { transform: translate(0, 0) scale(1.05); } 50% { transform: translate(-38px, 42px) scale(.95); } }
@keyframes shbDrift3 { 0%, 100% { transform: translate(0, 0) scale(1); } 50% { transform: translate(60px, -30px) scale(1.15); } }
/* 网格纹理缓慢流动 */
.shb-mesh {
  position: absolute; inset: 0; pointer-events: none;
  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;
  -webkit-mask-image: radial-gradient(95% 85% at 50% 0%, #000 15%, transparent 78%);
  mask-image: radial-gradient(95% 85% at 50% 0%, #000 15%, transparent 78%);
  animation: shbMeshMove 26s linear infinite;
}
@keyframes shbMeshMove { to { background-position: 56px 56px, 56px 56px; } }

.shb-inner { position: relative; z-index: 3; max-width: min(800px, 100%); margin-top: 16px; }
.shb-inner .eyebrow { background: rgba(255, 255, 255, .1); color: #dbe9ff; }
.shb-inner h1 { font-size: clamp(30px, 4.3vw, 50px); color: #fff; line-height: 1.18; margin: 16px 0 18px; letter-spacing: -.01em; }
.shb-inner h1 em { display: block; font-style: normal; font-size: .46em; font-weight: 600; color: #9fc0f5; margin-top: 12px; letter-spacing: .01em; }
.shb-inner p { color: #c3d5f0; font-size: 15.5px; max-width: min(680px, 100%); margin: 0; word-break: break-word; }
.shb-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.shb-actions .btn--ghost { background: rgba(255, 255, 255, .08); border-color: rgba(255, 255, 255, .3); color: #fff; }
.shb-actions .btn--ghost:hover { background: rgba(255, 255, 255, .16); border-color: #fff; color: #fff; }

.shb-stats {
  position: relative; z-index: 3; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  margin-top: 44px; padding-top: 26px; border-top: 1px solid rgba(255, 255, 255, .14); max-width: 720px;
}
.shb-stats b { font-size: clamp(24px, 2.9vw, 34px); color: #fff; line-height: 1.15; font-weight: 800; }
.shb-stats .unit { color: #f5a623; font-style: normal; font-weight: 700; margin-left: 2px; }
.shb-stats span { display: block; font-size: 12.5px; color: #93a9c9; margin-top: 3px; }
/* 进入动画 */
.shb-inner { animation: shbUp .85s cubic-bezier(.16, .84, .44, 1) both; }
.shb-stats { animation: shbUp .85s .18s cubic-bezier(.16, .84, .44, 1) both; }
@keyframes shbUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }

/* 快捷导航：上浮白卡 */
.svc-quicknav { position: relative; z-index: 4; margin-top: -50px; padding-bottom: 8px; }

.svc-summary {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 12px; padding: 16px;
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-m);
}
.svc-summary-item { text-align: center; padding: 14px 8px; border-radius: 12px; transition: .3s var(--ease); }
.svc-summary-item:hover { background: var(--c-primary); }
.svc-summary-item:hover b, .svc-summary-item:hover .ss-n, .svc-summary-item:hover i { color: #fff; }
.ss-n { display: block; font-size: 12px; font-weight: 800; color: var(--c-primary-l); letter-spacing: .1em; }
.svc-summary-item b { display: block; font-size: 15px; color: var(--c-ink); margin: 4px 0 2px; }
.svc-summary-item i { font-style: normal; font-size: 12px; color: var(--c-muted); }

.svc-row {
  position: relative;
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
  padding: 38px 0; border-bottom: 1px solid var(--c-line);
}
.svc-row:last-child { border-bottom: 0; }
.svc-row.is-reverse .svc-visual { order: 2; }

/* 板块之间用同一条分隔线串起来，只用一小段主题色做记号：既有区分，又不会把页面切成一块块 */
.svc-row { --row-c: #0a5cff; --row-soft: rgba(10, 92, 255, .10); --row-line: rgba(10, 92, 255, .3); padding: 44px 0; border-bottom: 0; border-top: 1px solid var(--c-line); }
.svc-row:nth-child(2) { --row-c: #ff6a00; --row-soft: rgba(255, 106, 0, .10); --row-line: rgba(255, 106, 0, .3); }
.svc-row:nth-child(3) { --row-c: #7c4dff; --row-soft: rgba(124, 77, 255, .10); --row-line: rgba(124, 77, 255, .3); }
.svc-row:nth-child(4) { --row-c: #0093c4; --row-soft: rgba(0, 147, 196, .10); --row-line: rgba(0, 147, 196, .3); }
.svc-row:nth-child(5) { --row-c: #e0347f; --row-soft: rgba(224, 52, 127, .10); --row-line: rgba(224, 52, 127, .3); }
.svc-row:nth-child(6) { --row-c: #2b4ecf; --row-soft: rgba(43, 78, 207, .10); --row-line: rgba(43, 78, 207, .3); }
.svc-row:nth-child(7) { --row-c: #d98200; --row-soft: rgba(217, 130, 0, .10); --row-line: rgba(217, 130, 0, .3); }
/* 分隔线上的彩色记号（56px），起点与正文左边界对齐 */
.svc-row::before {
  content: ""; position: absolute; top: -1px; left: 0; width: 72px; height: 3px; border-radius: 2px;
  background: var(--row-c); opacity: .85; z-index: 2;
}
/* 悬停时整行极淡地铺一层该板块色，作为交互反馈（不常驻，避免割裂） */
.svc-row::after {
  content: ""; position: absolute; inset: 0; border-radius: 18px; pointer-events: none;
  background: linear-gradient(90deg, var(--row-soft) 0%, rgba(255, 255, 255, 0) 58%);
  opacity: 0; transition: opacity .35s var(--ease); z-index: 0;
}
.svc-row:hover::after { opacity: 1; }
.svc-row > * { position: relative; z-index: 1; }
.svc-row > * { position: relative; z-index: 1; }
.svc-row .eyebrow { background: var(--row-soft); color: var(--row-c); }
.svc-row .sd-price { color: var(--c-accent-d); }
.svc-visual {
  position: relative; overflow: hidden; min-height: 380px; padding: 34px; color: #fff;
  border-radius: var(--radius-lg); box-shadow: var(--shadow-m);
  background: linear-gradient(145deg, #04122b 0%, #0a3d8f 45%, #0a5cff 78%, #00b8ff 100%);
  background-size: cover; background-position: center;
  display: flex; flex-direction: column; justify-content: space-between;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.svc-visual:hover { transform: translateY(-4px); box-shadow: var(--shadow-l, 0 20px 48px rgba(4, 18, 43, .18)); }
.svc-visual::after {
  content: ""; position: absolute; width: 460px; height: 460px; right: -180px; bottom: -220px; border-radius: 50%;
  background: radial-gradient(circle, rgba(61, 139, 255, .5), transparent 62%);
}
/* 有封面上传图时：图片铺满 + 三层遮罩保证任意底色（含纯白图）下的文字可读性 */
.svc-visual.has-cover::after { display: none; }
.svc-visual > *:not(.svc-visual-img) { position: relative; z-index: 2; }
.svc-visual-img { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; object-fit: cover; transform: scale(1); transition: transform .8s cubic-bezier(.2, .7, .3, 1); filter: saturate(1.04); }
.svc-visual:hover .svc-visual-img { transform: scale(1.07); }
.svc-visual > .svc-visual-veil {
  position: absolute; inset: 0; z-index: 1; opacity: 0; pointer-events: none;
  /* 图片已统一调亮，遮罩只需在文字区做轻度压暗：左侧文字区、底部数据区稍深，右侧基本不加遮罩 */
  background:
    linear-gradient(90deg, rgba(4, 18, 43, .58) 0%, rgba(4, 18, 43, .34) 34%, rgba(4, 18, 43, .14) 62%, rgba(4, 18, 43, .05) 100%),
    linear-gradient(180deg, rgba(4, 18, 43, .22) 0%, rgba(4, 18, 43, .06) 34%, rgba(4, 18, 43, .32) 64%, rgba(4, 18, 43, .74) 100%);
}
.svc-visual.has-cover .svc-visual-veil { opacity: 1; }
/* 文字描边光，白底图也能清晰读出 */
.svc-visual.has-cover .svc-visual-inner h3,
.svc-visual.has-cover .svc-visual-inner p,
.svc-visual.has-cover .svc-visual-stats b,
.svc-visual.has-cover .svc-visual-stats span { text-shadow: 0 1px 3px rgba(4, 18, 43, .8), 0 2px 10px rgba(4, 18, 43, .65), 0 0 22px rgba(4, 18, 43, .45); }
.sv-ico { width: 56px; height: 56px; border-radius: 16px; background: rgba(255, 255, 255, .14); display: grid; place-items: center; margin-bottom: 18px; }
.sv-ico svg { width: 28px; height: 28px; stroke: #fff; fill: none; stroke-width: 1.8; }
.sv-index { position: absolute; right: 22px; top: 12px; font-size: 68px; font-weight: 800; color: rgba(255, 255, 255, .1); line-height: 1; }
.svc-visual-inner h3 { color: #fff; font-size: 22px; margin: 0 0 6px; }
.svc-visual-inner p { color: #b9cbe8; font-size: 13.5px; margin: 0; }
.svc-visual-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 24px; padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, .18); }
.svc-visual-stats b { display: block; font-size: 22px; color: var(--c-gold); line-height: 1.2; }
.svc-visual-stats span { font-size: 12.5px; color: #a9bcd9; }

.svc-detail h2 { font-size: clamp(22px, 2.6vw, 30px); margin: 12px 0 12px; }
.sd-sum { color: var(--c-muted); font-size: 15px; }
.sd-feats { list-style: none; padding: 0; margin: 0 0 24px; display: grid; gap: 12px; }
.sd-feats li { display: grid; grid-template-columns: auto 1fr; gap: 4px 10px; font-size: 14px; padding: 6px 10px; margin-left: -10px; border-radius: 8px; transition: background .25s, transform .25s, box-shadow .25s; }
.sd-feats li:hover { background: rgba(10, 92, 255, .05); transform: translateX(3px); }
.sd-feats li:hover > span { color: var(--c-primary); }
.sd-feats li > span { grid-row: span 2; display: flex; padding-top: 2px; color: var(--c-primary-l); }
.sd-feats li > span svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 2; }
.sd-feats li b { color: var(--c-ink); font-weight: 600; }
.sd-feats li i { font-style: normal; color: var(--c-muted); font-size: 13.5px; }
.sd-foot { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.sd-price { font-size: 20px; font-weight: 800; color: var(--c-accent-d); }

/* 服务详情页 Hero：有封面图时叠加背景 + 信任标签 + 数据面板 */
.svc-pagehead.has-cover { background-size: cover; background-position: center; }
.svc-hero-trust { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 18px; }
.svc-hero-trust span { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: #c3d5f0; }
.svc-hero-trust svg { width: 16px; height: 16px; stroke: #7fb2ff; fill: none; stroke-width: 2; flex: none; }
.hl-grid--panel {
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .15);
  border-radius: 16px; padding: 24px 16px; backdrop-filter: blur(6px);
}
/* 特性卡片序号 */
.feat-item--num { position: relative; }
.fi-n {
  display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 10px;
  transition: transform .3s var(--ease), background .3s, color .3s, box-shadow .3s;
  background: linear-gradient(135deg, rgba(10, 92, 255, .14), rgba(0, 184, 255, .08));
  color: var(--c-primary); font-size: 13px; font-weight: 800; margin-bottom: 12px; letter-spacing: .02em;
}
.feat-item:hover .fi-n { background: linear-gradient(135deg, var(--c-primary), #00b8ff); color: #fff; transform: translateY(-2px) scale(1.06); box-shadow: 0 8px 18px rgba(10, 92, 255, .3); }

/* 关于我们 · 能力卡图标 */
.adv-ico { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; background: linear-gradient(135deg, rgba(10, 92, 255, .2), rgba(0, 184, 255, .1)); margin-bottom: 14px; }
.adv-ico svg { width: 24px; height: 24px; stroke: var(--c-primary-l); fill: none; stroke-width: 1.8; }

/* ==========================================================================
   右侧悬浮咨询栏
   ========================================================================== */
.sider { position: fixed; right: 12px; top: 50%; transform: translateY(-50%); z-index: 75; display: flex; flex-direction: column; gap: 8px; }
.sider-btn {
  width: 50px; height: 50px; border-radius: 13px; background: #fff; border: 1px solid var(--c-line);
  box-shadow: var(--shadow-m); display: grid; place-items: center; align-content: center; gap: 2px;
  color: var(--c-text); transition: .3s var(--ease);
}
.sider-btn:hover { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }
.sider-btn svg { width: 22px; height: 22px; stroke: var(--c-primary); fill: none; stroke-width: 1.8; transition: .3s var(--ease); }
.sider-btn:hover svg { stroke: #fff; }
.sider-txt { font-size: 11px; line-height: 1; }
.sider-item { position: relative; }
.sider-pop {
  position: absolute; right: calc(100% + 12px); top: 50%; width: 196px; padding: 18px;
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); box-shadow: var(--shadow-l);
  text-align: center; opacity: 0; pointer-events: none;
  transform: translateY(-50%) scale(.96); transition: .25s var(--ease);
}
.sider-wechat:hover .sider-pop, .sider-item.is-open .sider-pop { opacity: 1; pointer-events: auto; transform: translateY(-50%) scale(1); }
.sider-pop b { display: block; font-size: 14px; margin-bottom: 12px; }
.sider-pop img { margin: 0 auto; border-radius: 10px; border: 1px solid var(--c-line); }
.sider-qr-ph {
  height: 140px; border: 1px dashed var(--c-line); border-radius: 10px; background: var(--c-bg-soft);
  display: grid; place-items: center; font-size: 13px; color: var(--c-muted); text-align: center; line-height: 1.6;
}
.sider-wxid { margin: 12px 0 10px; font-size: 13px; }
.sider-copy { width: 100%; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--c-primary-l); background: #fff; color: var(--c-primary-l); font-size: 13px; transition: .25s var(--ease); }
.sider-copy:hover { background: var(--c-primary-l); color: #fff; }
.sider-pop small { display: block; margin-top: 10px; font-size: 11.5px; color: var(--c-muted); }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1100px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .svc-hero { grid-template-columns: 1fr; gap: 28px; }
  .layout-2 { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: 1fr 1fr; gap: 32px; }
  .steps { grid-template-columns: repeat(3, 1fr); gap: 24px 18px; }
  .step:nth-child(3)::after { display: none; }
  /* 五条服务保障：中屏 3 列等宽 */
  .adv-grid { grid-template-columns: repeat(3, 1fr); }
  /* 发展历程：中屏改 2 列；节点为奇数时末项占满整行，避免末行落单、连线悬空 */
  .ms-timeline { grid-template-columns: repeat(2, 1fr); gap: 26px 34px; }
  .ms-rail { display: none; }
  .ms-cell { padding-right: 0; padding-bottom: 18px; border-bottom: 1px solid var(--c-line); }
  .ms-cell:last-child { border-bottom: 0; }
  .ms-cell:last-child:nth-child(odd) { grid-column: span 2; }
  /* 服务快捷导航：7 列降为 4 列 */
  .svc-summary { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 860px) {
  .shb-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .svc-row { grid-template-columns: 1fr; gap: 26px; }
  .svc-row.is-reverse .svc-visual { order: 0; }
  .svc-visual { min-height: 300px; padding: 26px; }
}

@media (max-width: 960px) {
  .nav, .header-phone { display: none; }
  .burger { display: block; }
  .svc-grid, .case-grid, .news-grid, .feat-grid { grid-template-columns: repeat(2, 1fr); }
  /* 服务保障：flex 布局，每项约半行 */
  .adv-grid > .adv-item { flex: 1 1 300px; max-width: calc(50% - 9px); }
  .city-grid { grid-template-columns: repeat(3, 1fr); }
  .stats-band { grid-template-columns: repeat(2, 1fr); }
  .stats-band > div:nth-child(2) { border-right: 0; }
  .hl-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-band { grid-template-columns: 1fr; }
  .topbar .tb-left { display: none; }
}

@media (max-width: 720px) {
  body { font-size: 15.5px; }
  .wrap { width: calc(100% - 28px); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 18px 10px; }
  .svc-grid, .case-grid, .news-grid, .feat-grid, .g-2, .g-3, .g-4 { grid-template-columns: 1fr; }
  /* 服务保障与发展历程：手机单列 */
  .adv-grid { grid-template-columns: 1fr; }
  .ms-timeline { grid-template-columns: 1fr; gap: 0; }
  .ms-cell { padding-right: 0; padding-bottom: 14px; border-bottom: 1px solid var(--c-line); }
  .ms-cell:last-child, .ms-cell:last-child:nth-child(odd) { grid-column: auto; border-bottom: 0; }
  .city-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; gap: 18px; }
  .step::after { display: none; }
  .footer-cols { grid-template-columns: 1fr; }
  .mobar { display: block; }
  body { padding-bottom: 58px; }
  .case-res { grid-template-columns: repeat(2, 1fr); }
  .topbar .wrap { height: 34px; font-size: 12px; }
  .topbar .tb-right { gap: 12px; }
  /* 产品服务：手机快捷导航 2 列，Hero 收紧 */
  .svc-summary { grid-template-columns: repeat(2, 1fr); padding: 12px; gap: 6px; }
  .svc-quicknav { margin-top: -34px; }
  .svc-hero-band { padding-bottom: 62px; }
  .shb-inner h1 { font-size: 26px; }
  .shb-inner h1 em { font-size: 15px; }
  .shb-stats { margin-top: 32px; }
}

/* 移动端抽屉菜单 */
.drawer {
  position: fixed; inset: 0; background: rgba(7, 22, 53, .5); z-index: 90; display: none;
}
.drawer.is-open { display: block; }
.drawer-panel {
  position: absolute; right: 0; top: 0; bottom: 0; width: min(84%, 340px); background: #fff;
  padding: 22px; overflow-y: auto; transform: translateX(100%); transition: transform .32s var(--ease);
}
.drawer.is-open .drawer-panel { transform: translateX(0); }
.drawer-panel h4 { font-size: 13px; color: var(--c-muted); letter-spacing: .08em; margin: 18px 0 10px; }
.drawer-panel > a { display: block; padding: 13px 0; font-size: 16px; font-weight: 500; border-bottom: 1px solid var(--c-line); color: var(--c-ink); }
.drawer-panel > a.is-active { color: var(--c-primary-l); }
.drawer-close { position: absolute; right: 16px; top: 14px; width: 36px; height: 36px; border: 1px solid var(--c-line); background: #fff; border-radius: 50%; font-size: 18px; }
.drawer .city-chips a { font-size: 13px; }

/* 打印/无障碍 */
:focus-visible { outline: 2px solid var(--c-primary-l); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* ==========================================================================
   服务详情扩展区块：表格 / 双栏对比 / 卡片 / 步骤
   ========================================================================== */
.blk { margin-bottom: 46px; }
.blk:last-child { margin-bottom: 0; }
.blk-head { max-width: 780px; margin-bottom: 22px; }
.blk-head h2 { font-size: clamp(21px, 2.4vw, 28px); margin: 0 0 8px; padding-left: 14px; border-left: 4px solid var(--c-accent); }
.blk-head p { margin: 0; color: var(--c-muted); font-size: 15px; }

.tbl-wrap { overflow-x: auto; border: 1px solid var(--c-line); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow-s); }
.tbl { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 680px; }
.tbl th { background: var(--c-bg-soft); color: var(--c-ink); font-weight: 700; text-align: left; padding: 15px 18px; border-bottom: 1px solid var(--c-line); white-space: nowrap; }
.tbl td { padding: 15px 18px; border-bottom: 1px solid var(--c-line); color: var(--c-text); vertical-align: top; }
.tbl tbody tr:last-child td { border-bottom: 0; }
.tbl tbody tr:hover { background: #fafcff; }
.tbl td:first-child { font-weight: 600; color: var(--c-ink); }

.cmp { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.cmp-col { background: #fff; border: 1px solid var(--c-line); border-top: 4px solid var(--c-primary); border-radius: var(--radius-lg); padding: 28px; }
.cmp-col.is-right { border-top-color: var(--c-accent); }
.cmp-tag { display: inline-block; font-size: 12.5px; font-weight: 600; padding: 4px 12px; border-radius: 999px; background: linear-gradient(100deg, rgba(10, 92, 255, .16), rgba(0, 184, 255, .08)); color: var(--c-primary); margin-bottom: 12px; }
.cmp-col.is-right .cmp-tag { background: rgba(255, 106, 0, .12); color: var(--c-accent-d); }
.cmp-col h3 { font-size: 20px; margin: 0 0 16px; }
.cmp-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.cmp-col li { display: flex; gap: 10px; font-size: 14px; align-items: flex-start; }
.cmp-col li::before { content: ""; flex: 0 0 auto; width: 7px; height: 7px; margin-top: 9px; border-radius: 50%; background: var(--c-primary); }
.cmp-col.is-right li::before { background: var(--c-accent); }

.xcards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.xcard { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 22px; transition: .3s var(--ease); }
.xcard:hover { transform: translateY(-4px); box-shadow: var(--shadow-m); border-color: transparent; }
.xcard b { display: block; color: var(--c-ink); font-size: 16px; margin-bottom: 8px; }
.xcard span { font-size: 13.5px; color: var(--c-muted); display: block; }

.steps--wrap { grid-template-columns: repeat(3, 1fr); gap: 26px 18px; }
.steps--wrap .step::after { display: none; }

/* ==========================================================================
   案例：封面图 / 作品配图
   ========================================================================== */
.case-thumb {
  position: relative; height: 176px; background-size: cover; background-position: center;
  background-color: var(--c-bg-dark); display: block; overflow: hidden;
}
/* 只在顶部加浅渐变，保证左上角行业标签可读，标题与指标一律放在图下方，不被遮挡 */
.case-thumb::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(6, 21, 46, .42) 0%, rgba(6, 21, 46, 0) 46%);
}
.case-thumb .ct-tag {
  position: absolute; z-index: 2; left: 14px; top: 14px; font-size: 12px; padding: 4px 10px;
  border-radius: 6px; background: rgba(255, 106, 0, .95); color: #fff; font-weight: 600; line-height: 1.4;
}
.case-thumb .ct-client {
  position: absolute; z-index: 2; left: 14px; right: 14px; bottom: 12px; color: #fff;
  font-size: 12.5px; text-shadow: 0 1px 6px rgba(6, 21, 46, .85);
}
.case-res { grid-template-columns: repeat(3, 1fr); }

.case-hero {
  position: relative; height: 340px; border-radius: var(--radius-lg); overflow: hidden;
  background-size: cover; background-position: center; background-color: var(--c-bg-dark); margin-bottom: 24px;
}
.case-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(6, 21, 46, .15), rgba(6, 21, 46, .82)); }
.case-hero-inner { position: absolute; z-index: 2; left: 0; right: 0; bottom: 0; padding: 32px; color: #fff; }
.case-hero-inner h1 { color: #fff; font-size: clamp(22px, 3vw, 34px); margin: 0 0 8px; }
.case-hero-inner p { color: #c7d7f2; margin: 0; font-size: 15px; }
/* hero 图内面包屑：叠在封面左上角，与底部标题组互不干扰 */
.crumb--hero { position: absolute; top: 20px; left: 32px; z-index: 2; margin: 0; color: rgba(255, 255, 255, .82); text-shadow: 0 1px 8px rgba(6, 21, 46, .7); }
.crumb--hero a { color: #fff; }
.crumb--hero a:hover { color: #cfe0ff; }
/* hero 底部客户信息行 */
.case-hero-client { font-size: 13px; color: #d6e6ff; margin-bottom: 10px; letter-spacing: .02em; }
/* 案例详情：hero 作为首屏，顶部间距比常规 section 收敛 */
.section--case-hero { padding-top: clamp(34px, 4.5vw, 52px); }
/* hero 底部与正文的间距收紧，避免「项目成果指标」上方留白过大 */
.section--case-hero + .section--case-body { padding-top: 12px; }
/* 侧栏「更多案例」缩略图卡片：图文并排，比纯文字列表更突出 */
.case-side { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.case-side a { display: flex; gap: 12px; align-items: center; padding: 8px; border-radius: var(--radius); border: 1px solid transparent; transition: border-color .2s, background .2s; }
.case-side a:hover { border-color: rgba(10, 92, 255, .28); background: var(--c-bg-soft); }
.case-side img { width: 88px; height: 62px; object-fit: cover; border-radius: 8px; flex: none; background: var(--c-bg-soft); }
.case-side .cs-body { min-width: 0; }
.case-side b { display: block; font-size: 14px; font-weight: 600; line-height: 1.45; color: var(--c-ink); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.case-side a:hover b { color: var(--c-primary-d); }
.case-side em { display: block; font-size: 12.5px; font-style: normal; color: var(--c-muted); margin-top: 3px; }

.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; margin: 22px 0 8px; }
.gallery figure { margin: 0; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; }
.gallery img { width: 100%; aspect-ratio: 3 / 2; height: auto; object-fit: cover; background: var(--c-bg-soft); display: block; }
.gallery figcaption { font-size: 13px; color: var(--c-muted); padding: 12px 14px; line-height: 1.6; }

.spec-list { list-style: none; padding: 0; margin: 0 0 22px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.spec-list li { background: var(--c-bg-soft); border-radius: 10px; padding: 12px 16px; font-size: 14px; }
.spec-list b { color: var(--c-ink); }

/* ==========================================================================
   新闻中心
   ========================================================================== */
.news-feature {
  display: grid; grid-template-columns: 1.05fr .95fr; background: #fff;
  border: 1px solid var(--c-line); border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 26px;
  transition: .35s var(--ease);
}
.news-feature:hover { box-shadow: var(--shadow-l); transform: translateY(-4px); }
.nf-cover { min-height: 300px; background-size: cover; background-position: center; background-color: var(--c-bg-dark); position: relative; }
.nf-cover .nf-cat { position: absolute; left: 22px; top: 20px; font-size: 12.5px; padding: 5px 12px; border-radius: 999px; background: rgba(255, 106, 0, .92); color: #fff; font-weight: 600; }
.nf-body { padding: 34px; display: flex; flex-direction: column; justify-content: center; }
.nf-body h2 { font-size: clamp(20px, 2.2vw, 27px); margin: 0 0 12px; }
.nf-body h2 a:hover { color: var(--c-primary); }
.nf-body p { color: var(--c-muted); font-size: 15px; }
.nf-meta { display: flex; flex-wrap: wrap; gap: 16px; font-size: 13px; color: var(--c-muted); margin-bottom: 14px; }

.news-card { padding: 0; overflow: hidden; }
.nc-cover { height: 156px; background-size: cover; background-position: center; background-color: var(--c-bg-dark); }
.nc-body { padding: 22px 24px 24px; }
.news-cat { margin-bottom: 10px; }

/* ==========================================================================
   关于我们：配图与荣誉资质
   ========================================================================== */
.figure { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-m); background: var(--c-bg-soft); }
.figure img { width: 100%; display: block; }
.figure--hero img { height: 320px; object-fit: cover; }
.figure--half img { height: 260px; object-fit: cover; }

.honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.honor-item { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 14px; text-align: center; transition: .3s var(--ease); }
.honor-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-m); border-color: transparent; }
.honor-item img { width: 100%; height: 148px; object-fit: cover; border-radius: 8px; background: var(--c-bg-soft); }
.honor-item b { display: block; font-size: 14px; margin-top: 12px; color: var(--c-ink); }
/* 小标题（副标题）：块级 + 两行封顶省略，悬停 title 显示全文，保证卡片整齐 */
.honor-item small {
  display: -webkit-box; font-size: 12px; color: var(--c-muted); margin-top: 5px; line-height: 1.55;
  -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; word-break: break-all;
}

.value-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.value-list li { display: flex; gap: 12px; font-size: 14.5px; align-items: flex-start; }
.value-list li span { flex: 0 0 auto; color: var(--c-accent); padding-top: 2px; }
.value-list li span svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 2; }

/* ==========================================================================
   联系我们：表单细节修正
   ========================================================================== */
.cc-ico { width: 48px; height: 48px; margin: 0 auto 12px; }
.cc-ico svg { width: 23px; height: 23px; }
.contact-card { padding: 24px 18px; }
.contact-card em { font-size: 18px; }
.msg-form { gap: 18px; }
.mf-row { gap: 18px; }
.msg-form label { margin-bottom: 8px; }
.msg-form input, .msg-form select, .msg-form textarea { margin-top: 0; }
.msg-side .btn { width: auto; }

/* 深色底表单里的下拉框：收起时白字 + 自定义箭头，展开选项白底深字（放文件末尾以覆盖前面的通用规则） */
.hero-form select, .cta-form select {
  color: #fff; background-color: rgba(255, 255, 255, .18); border-color: rgba(255, 255, 255, .45);
  appearance: none; -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, #fff 50%), linear-gradient(135deg, #fff 50%, transparent 50%);
  background-position: calc(100% - 20px) 52%, calc(100% - 14px) 52%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}
.hero-form select option, .cta-form select option { background: #fff; color: #0b1220; }

/* ==========================================================================
   首页 FAQ：左侧说明卡 + 右侧带编号的问答，层次更丰富
   ========================================================================== */
.faq-layout { display: grid; grid-template-columns: 330px minmax(0, 1fr); gap: 44px; align-items: start; }
.faq-side {
  background: linear-gradient(150deg, #08152e 0%, #0040c8 100%); color: #fff;
  border-radius: var(--radius-lg); padding: 30px; box-shadow: var(--shadow-l); position: relative; overflow: hidden;
}
.faq-side::after {
  content: ""; position: absolute; width: 300px; height: 300px; right: -120px; top: -140px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 106, 0, .35), transparent 62%);
}
.faq-side > * { position: relative; z-index: 2; }
.faq-side h2 { color: #fff; font-size: clamp(22px, 2.4vw, 29px); margin: 14px 0 12px; }
.faq-side p { color: #c7d7f2; font-size: 14.5px; margin: 0; }
.faq-side-list { list-style: none; padding: 0; margin: 20px 0 24px; display: grid; gap: 12px; }
.faq-side-list li { display: flex; gap: 10px; font-size: 14px; color: #dce8fb; align-items: flex-start; }
.faq-side-list li svg { width: 18px; height: 18px; stroke: var(--c-accent-l); flex: none; margin-top: 3px; }

.faq-item {
  border: 1px solid var(--c-line); border-left: 3px solid transparent; border-radius: var(--radius);
  background: #fff; margin-bottom: 12px; overflow: hidden; transition: .3s var(--ease);
}
.faq-item:hover { border-left-color: var(--c-primary-l); }
.faq-item.is-open { border-left-color: var(--c-accent); box-shadow: var(--shadow-m); }
.faq-q {
  display: flex; align-items: center; gap: 12px; width: 100%; text-align: left; border: 0; background: none;
  padding: 16px 52px 16px 18px; font-size: 16px; font-weight: 600; color: var(--c-ink); position: relative;
}
.faq-num {
  flex: none; width: 26px; height: 26px; border-radius: 8px; background: linear-gradient(100deg, rgba(10, 92, 255, .16), rgba(0, 184, 255, .08));
  color: var(--c-primary); display: grid; place-items: center; font-size: 13px; font-weight: 800;
}
.faq-item.is-open .faq-num { background: var(--c-accent); color: #fff; }
.faq-a { padding: 0 20px 18px 56px; font-size: 15px; color: var(--c-text); border-top: 1px solid var(--c-line); padding-top: 14px; }

/* ==========================================================================
   表单：必填星号橘红、提示加重、标签更突出
   ========================================================================== */
.hero-form label, .cta-form label, .msg-form label { font-size: 15px; font-weight: 700; color: var(--c-ink); }
.hero-form label { color: #fff; }
.msg-form label i, .req { color: var(--c-required); font-style: normal; font-weight: 800; margin-left: 3px; font-size: 1.2em; }
/* 提高占位文字对比度，避免"看不清" */
.hero-form input::placeholder, .hero-form textarea::placeholder { color: #c2d3ec; }
.cta-form input::placeholder, .cta-form textarea::placeholder { color: rgba(255, 255, 255, .82); }
.msg-form input::placeholder, .msg-form textarea::placeholder { color: #6f7d90; }
.form-tip { font-weight: 700; font-size: 13.5px; }
.msg-form .form-tip.err, .form-tip.err { color: #c0340f; }
.hero-form .form-tip.err, .cta-form .form-tip.err { color: #ffd7c9; }
.form-hint-line {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13.5px; font-weight: 700; color: #ff8b6b;
  background: transparent; padding: 0 0 0 10px; border-left: 3px solid var(--c-required);
  margin: 0 0 14px; line-height: 1.6;
}
.form-hint-line--light { color: #ffb59a; background: transparent; border-left-color: #ff8b6b; }
.form-hint-line .req { color: var(--c-required); }
.form-tip { font-weight: 600; }
.msg-form .form-tip.err, .form-tip.err { color: var(--c-required); }
.msg-form .form-tip.ok { color: #0f9d58; }
.hero-form .form-tip.err, .cta-form .form-tip.err { color: #ffc7bb; }
.hero-form .form-tip.ok, .cta-form .form-tip.ok { color: #a8f0c6; }
.msg-title { font-size: clamp(22px, 2.6vw, 30px); margin: 0 0 10px; }

/* ==========================================================================
   右侧悬浮栏：咨询按钮统一蓝色实底，hover 统一橘色；回顶部为白底
   ========================================================================== */
.sider-btn {
  background: linear-gradient(140deg, #0a5cff 0%, #0040c8 100%); border-color: transparent; color: #fff;
  box-shadow: 0 8px 20px rgba(10, 92, 255, .28);
}
.sider-btn svg { stroke: #fff; }
.sider-btn:hover { background: linear-gradient(140deg, #ff8533 0%, #e05500 100%); box-shadow: 0 8px 20px rgba(255, 106, 0, .34); }
.sider-btn:hover svg { stroke: #fff; }
.sider-btn.sider-top { background: #fff; border-color: var(--c-line); color: var(--c-text); box-shadow: var(--shadow-m); }
.sider-btn.sider-top svg { stroke: var(--c-primary); }
.sider-btn.sider-top:hover { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }
.sider-btn.sider-top:hover svg { stroke: #fff; }

/* ==========================================================================
   页脚备案信息：ICP 与公安备案同行展示，带备案图标
   ========================================================================== */
.f-icp { display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap; font-size: 13px; }
.f-icp img { width: 17px; height: 21px; display: inline-block; vertical-align: -5px; }
.f-icp a:hover { color: #fff; text-decoration: underline; }
.f-sep { opacity: .32; }

/* ==========================================================================
   视觉强化：波浪分割、渐变标题、更立体的按钮与卡片
   ========================================================================== */
.section--wave { padding-bottom: clamp(84px, 11vw, 140px); }
.section--wave > .wave {
  position: absolute; left: 0; right: 0; bottom: -1px; height: 56px; line-height: 0; pointer-events: none; z-index: 2;
}
.section--wave > .wave svg { width: 100%; height: 56px; display: block; }

/* 渐变标题（用于重点模块主标题） */
.grad-text {
  background: linear-gradient(100deg, #0b1220 0%, #0a5cff 55%, #ff6a00 130%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section--dark .grad-text { background: linear-gradient(100deg, #ffffff 0%, #cfe0ff 60%, #ffb59a 130%); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* 按钮更立体 */
.btn--primary { box-shadow: 0 10px 26px rgba(10, 92, 255, .35); }
.btn--primary:hover { box-shadow: 0 16px 34px rgba(10, 92, 255, .45); }
.btn--accent { box-shadow: 0 10px 26px rgba(255, 106, 0, .32); }
.btn--accent:hover { box-shadow: 0 16px 34px rgba(255, 106, 0, .42); }

/* 模块标题数字/关键词强调 */
.eyebrow--accent { background: linear-gradient(100deg, rgba(255, 106, 0, .16), rgba(255, 106, 0, .04)); color: var(--c-accent-d); }

/* 首页产品服务：hover 更突出 */
.svc-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 24px 50px rgba(11, 18, 32, .14), 0 0 0 1px rgba(10, 92, 255, .12);
}
.svc-card:hover .svc-ico { background: linear-gradient(135deg, #ff8533, #e05500); }
.svc-card:hover .svc-ico svg { stroke: #fff; }
.svc-card:hover h3 a { color: var(--c-primary); }
.svc-card:hover .svc-more { color: var(--c-accent-d); }

/* ==========================================================================
   首页新闻区（重新设计）：头条横卡 + 4 张缩略图小卡
   ========================================================================== */
.insight-feature-row {
  display: grid; grid-template-columns: .92fr 1.08fr; background: #fff; border: 1px solid var(--c-line);
  border-radius: 20px; overflow: hidden; box-shadow: 0 10px 30px rgba(11, 18, 32, .06);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.insight-feature-row:hover { transform: translateY(-6px); box-shadow: var(--shadow-l); }
.if-cover { position: relative; min-height: 250px; background-size: cover; background-position: center; background-color: var(--c-bg-dark); }
.if-cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(6, 21, 46, .1), rgba(6, 21, 46, .55)); }
.if-cat {
  position: absolute; z-index: 2; left: 18px; top: 16px; font-size: 12.5px; font-weight: 600; padding: 5px 12px;
  border-radius: 999px; background: rgba(255, 106, 0, .95); color: #fff;
}
.if-date { position: absolute; z-index: 2; left: 18px; bottom: 16px; display: flex; align-items: baseline; gap: 8px; }
.if-date b { font-size: 34px; color: var(--c-gold); line-height: 1; text-shadow: 0 2px 10px rgba(6, 21, 46, .6); }
.if-date i { font-style: normal; font-size: 13px; color: #dbe7fb; }
.if-body { padding: 30px 32px; display: flex; flex-direction: column; justify-content: center; }
.if-body h3 { font-size: clamp(19px, 2vw, 25px); margin: 0 0 12px; }
.if-body h3 a:hover { color: var(--c-primary); }
.if-body p {
  color: var(--c-muted); font-size: 14.5px; margin: 0 0 16px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

.insight-minis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 20px; }
.insight-mini {
  background: #fff; border: 1px solid var(--c-line); border-radius: 14px; overflow: hidden;
  box-shadow: 0 6px 18px rgba(11, 18, 32, .05);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.insight-mini:hover { transform: translateY(-6px); border-color: transparent; box-shadow: var(--shadow-m); }
.im-cover { height: 104px; background-size: cover; background-position: center; background-color: var(--c-bg-dark); }
.im-body { padding: 14px 16px 16px; }
.im-cat { display: inline-block; font-size: 11.5px; padding: 2px 8px; border-radius: 5px; background: linear-gradient(100deg, rgba(10, 92, 255, .16), rgba(0, 184, 255, .08)); color: var(--c-primary); margin-bottom: 8px; }
.insight-mini h4 {
  font-size: 14.5px; line-height: 1.55; margin: 0 0 8px; height: 2.95em;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.insight-mini:hover h4 { color: var(--c-primary); }
.im-meta { font-size: 12px; color: var(--c-muted); }

/* ==========================================================================
   右侧悬浮栏：白底蓝边蓝图标，hover 蓝 → 橙
   ========================================================================== */
.sider-btn {
  width: 46px; height: 46px; border-radius: 12px; background: rgba(255, 255, 255, .88);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  border: 1.5px solid rgba(10, 92, 255, .55);
  color: var(--c-primary); box-shadow: 0 4px 14px rgba(10, 92, 255, .14);
}
.sider-btn svg { stroke: var(--c-primary); }
.sider-btn:hover { background: #fff7f2; border-color: var(--c-accent); color: var(--c-accent-d); box-shadow: 0 8px 20px rgba(255, 106, 0, .24); }
.sider-btn:hover svg { stroke: var(--c-accent); }
.sider-btn.sider-top { border-color: var(--c-line); color: var(--c-text); box-shadow: var(--shadow-m); background: rgba(255, 255, 255, .88); backdrop-filter: blur(8px); }
.sider-btn.sider-top svg { stroke: var(--c-primary); }
.sider-btn.sider-top:hover { background: var(--c-primary); border-color: var(--c-primary); color: #fff; box-shadow: 0 8px 20px rgba(10, 92, 255, .3); }
.sider-btn.sider-top:hover svg { stroke: #fff; }

/* ==========================================================================
   绚丽化：多色图标、光晕球、彩色标题线、按钮 hover 转橘
   ========================================================================== */

/* 六个服务卡片各用一种品牌色做图标底，页面色彩更丰富 */
.svc-grid .svc-card:nth-child(1) .svc-ico { background: linear-gradient(135deg, #0a5cff, #00b8ff); }
.svc-grid .svc-card:nth-child(2) .svc-ico { background: linear-gradient(135deg, #7c4dff, #00b8ff); }
.svc-grid .svc-card:nth-child(3) .svc-ico { background: linear-gradient(135deg, #ff6a00, #ffb020); }
.svc-grid .svc-card:nth-child(4) .svc-ico { background: linear-gradient(135deg, #0a5cff, #7c4dff); }
.svc-grid .svc-card:nth-child(5) .svc-ico { background: linear-gradient(135deg, #ff4d94, #7c4dff); }
.svc-grid .svc-card:nth-child(6) .svc-ico { background: linear-gradient(135deg, #0a5cff, #7c4dff); }
.svc-grid .svc-card:nth-child(n) .svc-ico svg { stroke: #fff; }

/* Hero 光晕球（配合 .orb 元素使用） */
.orb { position: absolute; border-radius: 50%; filter: blur(2px); pointer-events: none; z-index: 1; }
.orb-1 { width: 320px; height: 320px; right: -60px; top: -80px; background: radial-gradient(circle, rgba(0, 184, 255, .5), transparent 66%); }
.orb-2 { width: 260px; height: 260px; left: -80px; bottom: -90px; background: radial-gradient(circle, rgba(124, 77, 255, .45), transparent 66%); }
.orb-3 { width: 200px; height: 200px; right: 22%; bottom: -60px; background: radial-gradient(circle, rgba(255, 106, 0, .38), transparent 66%); }

/* 模块标题装饰线改彩色渐变 */
.sec-head::after { background: linear-gradient(90deg, #0a5cff, #00b8ff 45%, #ff6a00); width: 64px; height: 4px; }

/* 数据数字渐变着色 */
.hero-stats b, .stats-band b, .hl-grid b, .svc-visual-stats b {
  background: linear-gradient(100deg, #ff9a3d, #ff6a00);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* 卡片顶部彩条（hover 显现） */
.case-card, .news-card, .adv-item, .xcard { border-top: 3px solid transparent; }
.case-card:hover { border-top-color: #0a5cff; }
.news-card:hover { border-top-color: #00b8ff; }
.adv-item:hover { border-top-color: #7c4dff; }
.xcard:hover { border-top-color: #ff6a00; }

/* 按钮：hover 统一转橘色（引导类按钮更醒目） */
.btn--primary:hover { background: linear-gradient(120deg, #ff8533, #e05500); box-shadow: 0 16px 34px rgba(255, 106, 0, .42); }
.btn--line:hover { background: var(--c-accent); border-color: var(--c-accent); color: #fff; box-shadow: 0 10px 24px rgba(255, 106, 0, .26); }
.btn--ghost:hover { background: rgba(255, 106, 0, .9); border-color: transparent; }
.btn--accent:hover { background: linear-gradient(120deg, #ffb020, #ff6a00); }
.svc-more:hover { color: var(--c-accent-d); }
.insight-more:hover { color: var(--c-accent-d); }

/* 新闻小卡：标签固定短尺寸 + 缩略图 4:3 */
.im-cat {
  display: inline-block; align-self: flex-start; width: auto; max-width: 100%; min-width: 0;
  white-space: nowrap; font-size: 11.5px; padding: 3px 9px; border-radius: 5px; line-height: 1.5;
  background: linear-gradient(100deg, rgba(10, 92, 255, .16), rgba(0, 184, 255, .1)); color: var(--c-primary);
}
.insight-item .im-thumb { width: 112px; height: 84px; }

/* 彩色分区：相邻板块使用不同色调，拼接更绚丽有节奏 */
.section--cyan {
  background: linear-gradient(180deg, #f0fbff 0%, #e4f8ff 100%);
  box-shadow: inset 0 1px 0 rgba(0, 184, 255, .14), inset 0 -1px 0 rgba(0, 184, 255, .08);
}
.section--violet {
  background: linear-gradient(180deg, #f8f6ff 0%, #f1ecff 100%);
  box-shadow: inset 0 1px 0 rgba(124, 77, 255, .14), inset 0 -1px 0 rgba(124, 77, 255, .08);
}
.section--cyan::before { background: linear-gradient(90deg, transparent, rgba(0, 184, 255, .55), transparent); }
.section--violet::before { background: linear-gradient(90deg, transparent, rgba(124, 77, 255, .55), transparent); }
.section--cyan .eyebrow { background: rgba(0, 184, 255, .14); color: #0079a8; }
.section--violet .eyebrow { background: rgba(124, 77, 255, .14); color: #6a34e0; }

/* 板块之间的彩色连接条 */
.band { height: 6px; background: linear-gradient(90deg, #0a5cff 0%, #00b8ff 26%, #7c4dff 50%, #ff6a00 76%, #0a5cff 100%); }

/* 白色区块的多色柔光：铺满整屏宽度，避免"到不了两边"
   注意：半径改用百分比，避免窄屏下固定 460px 高度撑成整块色斑 */
.section--glow::after {
  content: ""; position: absolute; left: 0; top: -8%; width: 100%; height: 42%;
  pointer-events: none; z-index: 0;
  background: radial-gradient(ellipse 42% 60% at 50% 40%, rgba(10, 92, 255, .14), transparent 70%),
              radial-gradient(ellipse 26% 50% at 16% 58%, rgba(124, 77, 255, .1), transparent 64%),
              radial-gradient(ellipse 26% 50% at 84% 52%, rgba(0, 184, 255, .12), transparent 66%);
}
.section--glow { overflow: hidden; }
/* 标题区背后再压一层浅色通栏底色，视觉上贯到两边（由 .section--glow 的 overflow 裁掉溢出） */
/* 标题通栏：作为 section 的直接子元素，背景天然贯到两侧边缘 */
.head-band {
  position: relative; margin: -8px 0 42px; padding: 40px 0 26px;
  /* 底部不再渐隐到接近白色，保证整条色带上下都清晰可见、一眼看出贯穿全屏 */
  background: linear-gradient(180deg, #cfe1ff 0%, #dbe9ff 55%, #e6f0ff 100%);
  border-bottom: 1px solid rgba(10, 92, 255, .22);
  overflow: hidden;
}
/* 顶部彩色渐变分隔线：蓝→青→紫→橘 */
.head-band::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px; z-index: 2;
  background: linear-gradient(90deg, #0a5cff, #00b8ff 30%, #7c4dff 60%, #ff6a00);
}
/* 科技网格纹理：从上往下渐隐 */
.head-band .band-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(10, 92, 255, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 92, 255, .07) 1px, transparent 1px);
  background-size: 30px 30px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 82%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 82%);
}
/* 左右两侧彩色光斑：强调色带贯穿全屏
   半径用百分比（不用固定 px），否则窄屏下会撑成一大块色斑 */
.head-band .band-glow {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 30% 85% at 4% 108%, rgba(10, 92, 255, .16), transparent 72%),
    radial-gradient(ellipse 30% 85% at 96% 108%, rgba(124, 77, 255, .14), transparent 72%);
}
.head-band > .wrap { position: relative; z-index: 1; }
.head-band .sec-head::after { margin-top: 14px; }

/* 城市分站头部：彩色信息条 */
.city-hero {
  display: flex; justify-content: space-between; gap: 26px; align-items: center; flex-wrap: wrap;
  padding: 26px 28px; border-radius: 18px; color: #fff;
  background: linear-gradient(120deg, #0a5cff 0%, #00b8ff 55%, #7c4dff 100%);
  box-shadow: 0 18px 40px rgba(10, 92, 255, .26);
}
.city-badge { display: inline-block; font-size: 12.5px; font-weight: 600; padding: 5px 12px; border-radius: 999px; background: rgba(255, 255, 255, .24); }
.city-hero h2 { color: #fff; margin: 12px 0 8px; font-size: clamp(20px, 2.4vw, 28px); }
.city-hero p { color: #e4f3ff; margin: 0; font-size: 14.5px; }
.ch-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.ch-stats div { background: rgba(255, 255, 255, .18); border-radius: 12px; padding: 12px 14px; text-align: center; }
.ch-stats b { display: block; color: #fff; font-size: 17px; }
.ch-stats span { font-size: 12px; color: #dbeeff; }

/* 整卡可点击进入详情（配合 main.js 的整卡点击） */
.svc-card, .case-card, .news-card, .insight-mini, .insight-item, .insight-feature, .xcard { cursor: pointer; }

/* 内页大标题下的小标题 */
.page-sub {
  color: #d6e6ff; font-size: clamp(14px, 1.5vw, 17px); margin: 0; letter-spacing: .02em;
}
.page-sub .ps-dot { opacity: .5; margin: 0 8px; }
.page-desc { color: #b9cbe8; font-size: 15px; max-width: 780px; margin: 12px 0 0; line-height: 1.7; }
.case-hero-inner .page-sub { color: #d6e6ff; font-size: 14.5px; }

/* 数据：单位缩小并排到数字右下角 */
.stats-band > div, .hero-stats > div { display: flex; align-items: baseline; justify-content: center; gap: 2px; flex-wrap: wrap; }
.stats-band b, .hero-stats b { display: inline-block; }
.unit {
  font-style: normal; font-size: .8em; font-weight: 700; line-height: 1;
  align-self: flex-end; margin-bottom: .12em; opacity: .95; color: inherit;
}
.stats-band > div > span, .hero-stats > div > span { flex: 0 0 100%; }

/* 服务页 / 服务列表的数字同样使用"数字 + 右下角小单位" */
.hl-grid > div, .svc-visual-stats > div, .case-res > div {
  display: flex; align-items: baseline; justify-content: center; gap: 2px; flex-wrap: wrap;
}
.hl-grid > div > b, .svc-visual-stats > div > b, .case-res > div > b { display: inline-block; }
.hl-grid > div > span, .svc-visual-stats > div > span, .case-res > div > span { flex: 0 0 100%; text-align: center; }

/* 五步流程的编号：彩色渐变圆章 + 光环 */
.step-n {
  width: 52px; height: 52px; margin: 0 auto 14px; border-radius: 50%; border: 0;
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 19px;
  background: linear-gradient(135deg, #0a5cff, #00b8ff);
  box-shadow: 0 10px 22px rgba(10, 92, 255, .28), 0 0 0 6px rgba(10, 92, 255, .09);
  position: relative; z-index: 2; transition: transform .3s var(--ease);
}
.step:hover .step-n { transform: translateY(-4px) scale(1.06); }
.step:nth-child(1) .step-n { background: linear-gradient(135deg, #0a5cff, #00b8ff); box-shadow: 0 10px 22px rgba(10, 92, 255, .28), 0 0 0 6px rgba(10, 92, 255, .09); }
.step:nth-child(2) .step-n { background: linear-gradient(135deg, #0a5cff, #7c4dff); box-shadow: 0 10px 22px rgba(124, 77, 255, .26), 0 0 0 6px rgba(124, 77, 255, .09); }
.step:nth-child(3) .step-n { background: linear-gradient(135deg, #7c4dff, #00b8ff); box-shadow: 0 10px 22px rgba(0, 184, 255, .26), 0 0 0 6px rgba(0, 184, 255, .09); }
.step:nth-child(4) .step-n { background: linear-gradient(135deg, #0a5cff, #ff8533); box-shadow: 0 10px 22px rgba(0, 201, 167, .26), 0 0 0 6px rgba(0, 201, 167, .09); }
.step:nth-child(5) .step-n { background: linear-gradient(135deg, #ff8533, #ff6a00); box-shadow: 0 10px 22px rgba(255, 106, 0, .28), 0 0 0 6px rgba(255, 106, 0, .1); }
.step:not(:last-child)::after {
  content: ""; position: absolute; top: 26px; left: 50%; width: 100%; height: 3px; z-index: 1;
  background: linear-gradient(90deg, rgba(10, 92, 255, .45), rgba(0, 184, 255, .18));
}

/* 四个步骤时铺满一行，避免内容偏左 */
.steps--four { grid-template-columns: repeat(4, 1fr); }

/* 区块小标题 */
.blk-sub { color: var(--c-muted); font-size: 14.5px; margin: 0 0 20px; }

/* 图片点击放大（灯箱） */
.lightbox {
  position: fixed; inset: 0; z-index: 300; display: none; align-items: center; justify-content: center;
  background: rgba(4, 12, 28, .88); padding: 24px; cursor: zoom-out;
}
.lightbox.is-open { display: flex; }
.lightbox img { max-width: 96vw; max-height: 88vh; border-radius: 12px; box-shadow: 0 30px 80px rgba(0, 0, 0, .5); }
.lightbox .lb-cap { position: absolute; left: 0; right: 0; bottom: 24px; text-align: center; color: #cfdcee; font-size: 14px; }
.lightbox .lb-close {
  position: absolute; right: 22px; top: 18px; width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .3); background: rgba(255, 255, 255, .12); color: #fff; font-size: 20px;
}

/* 产品内页：正文层次更强、色彩更大胆 */
.svc-hero { padding: 4px 0 8px; }
.page-head .svc-hero .hl-grid b { font-size: clamp(26px, 3.2vw, 40px); }
.article h2 {
  border-left: 4px solid transparent; padding-left: 14px;
  border-image: linear-gradient(180deg, #0a5cff, #00b8ff 60%, #ff6a00) 1;
}
.article h3 { color: #0a45c9; }
.article ul li::marker { color: var(--c-accent); font-weight: 700; }
.article ol li::marker { color: var(--c-primary); font-weight: 700; }
.article strong { color: #0b1220; }

/* 关键提示框（内容突出用） */
.callout {
  margin: 20px 0; padding: 18px 22px; border-radius: 14px; font-size: 14.5px;
  background: linear-gradient(120deg, rgba(10, 92, 255, .08), rgba(0, 184, 255, .06) 60%, rgba(255, 106, 0, .07));
  border-left: 4px solid var(--c-accent); color: var(--c-text);
}
.callout b { color: #0b1220; }

/* GEO 专区要点列表：hover 有位移、底色、图标放大等动态效果 */
.point-list { list-style: none; padding: 0; margin: 20px 0 26px; display: grid; gap: 8px; }
.point-item {
  display: flex; gap: 12px; align-items: flex-start; padding: 10px 14px; border-radius: 12px;
  border: 1px solid transparent; transition: transform .3s var(--ease), background .3s var(--ease),
          box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.point-item:hover { transform: translateX(6px); background: #fff; border-color: rgba(10, 92, 255, .2); box-shadow: var(--shadow-s); }
.point-item > span:first-child { flex: 0 0 auto; color: var(--c-primary); transition: transform .3s var(--ease), color .3s var(--ease); }
.point-item:hover > span:first-child { color: var(--c-accent); transform: scale(1.18); }
.point-item > span:last-child { transition: color .3s var(--ease); }
.point-item:hover > span:last-child { color: var(--c-primary-d); }

/* FAQ 标题 hover 动态效果 */
.faq-item:hover { border-color: rgba(10, 92, 255, .28); }
.faq-q { transition: color .3s var(--ease), background .3s var(--ease); border-radius: 10px; }
.faq-q:hover { color: var(--c-primary); background: linear-gradient(90deg, rgba(10, 92, 255, .07), rgba(10, 92, 255, 0)); }
.faq-q:hover .faq-num { background: var(--c-accent); color: #fff; transform: scale(1.1); }
.faq-num { transition: transform .3s var(--ease), background .3s var(--ease), color .3s var(--ease); }
.faq-q::after { transition: transform .3s var(--ease), color .3s var(--ease); }
.faq-q:hover::after { color: var(--c-accent); transform: translateY(-50%) scale(1.15); }

/* 产品内页"包含什么"六个方框：更绚丽大气 */
.feat-grid { counter-reset: feat; }
.feat-item {
  position: relative; overflow: hidden; background: #fff; border: 1px solid var(--c-line);
  border-radius: 16px; padding: 26px 24px 24px; border-top: 3px solid #0a5cff;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.feat-item::before {
  counter-increment: feat; content: counter(feat, decimal-leading-zero);
  position: absolute; right: 16px; top: 10px; font-size: 30px; font-weight: 800; line-height: 1;
  color: rgba(10, 92, 255, .13); transition: color .35s var(--ease), transform .35s var(--ease);
}
.feat-item:hover { transform: translateY(-8px); border-color: transparent; box-shadow: 0 22px 46px rgba(11, 18, 32, .14); background: linear-gradient(180deg, rgba(10, 92, 255, .05), #fff 62%); }
.feat-item:hover::before { color: rgba(255, 106, 0, .28); transform: scale(1.08); }
.feat-item b { display: block; font-size: 17px; color: var(--c-ink); margin-bottom: 8px; transition: color .3s var(--ease); }
.feat-item:hover b { color: var(--c-primary); }
.feat-item p { font-size: 14px; color: var(--c-muted); margin: 0; }
.feat-grid .feat-item:nth-child(1) { border-top-color: #0a5cff; }
.feat-grid .feat-item:nth-child(2) { border-top-color: #00b8ff; }
.feat-grid .feat-item:nth-child(3) { border-top-color: #7c4dff; }
.feat-grid .feat-item:nth-child(4) { border-top-color: #ff6a00; }
.feat-grid .feat-item:nth-child(5) { border-top-color: #ff6a00; }
.feat-grid .feat-item:nth-child(6) { border-top-color: #ff4d94; }

/* ---------- 新增组件的响应式适配 ---------- */
@media (max-width: 1180px) {
  .nav > a, .nav-drop-link { padding: 10px 9px; font-size: 14px; }
  .honor-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1100px) {
  .insight-feature-row { grid-template-columns: 1fr; }
  .if-cover { min-height: 190px; }
  .insight-minis { grid-template-columns: repeat(2, 1fr); }
  .faq-layout { grid-template-columns: 1fr; gap: 28px; }
  .cmp { grid-template-columns: 1fr; }
  .xcards { grid-template-columns: repeat(2, 1fr); }
  .steps--wrap { grid-template-columns: repeat(2, 1fr); }
  .news-feature { grid-template-columns: 1fr; }
  .nf-cover { min-height: 200px; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .insight-wrap { grid-template-columns: 1fr; }
  .insight-list { height: auto; }
  .insight-item { flex: 0 0 auto; min-height: 0; align-items: flex-start; }
  .insight-item .im-thumb { margin-top: 2px; }
  .svc-row { grid-template-columns: 1fr; gap: 26px; }
  .svc-row.is-reverse .svc-visual { order: 0; }
  .svc-visual { min-height: 240px; }
  .msg-layout { grid-template-columns: 1fr; }
  .svc-summary { grid-template-columns: repeat(3, 1fr); }
  .contact-cards { grid-template-columns: repeat(2, 1fr); }
  .contact-info-grid { grid-template-columns: 1fr 1fr; }
}

/* ==========================================================================
   移动端专项优化
   ========================================================================== */
@media (max-width: 720px) {
  /* 6. 取消移动端底部悬浮组件 */
  .mobar { display: none !important; }
  body { padding-bottom: 0 !important; }

  /* 窄屏关闭装饰性光晕/网格/光球：固定尺寸的光晕在窄屏会撑成大块色斑 */
  .band-glow, .band-grid { display: none; }
  .section--glow::after { display: none; }
  .orb { display: none; }
  .sider { right: 8px; top: 50%; bottom: auto; transform: translateY(-50%); }
  .sider-btn { width: 44px; height: 44px; border-radius: 12px; }
  .sider-txt { display: none; }
  .sider-pop { right: calc(100% + 10px); top: 50%; bottom: auto; width: 176px; }
  .sider-item.is-open .sider-pop { transform: translateY(-50%) scale(1); }

  /* 8. 流程区移动端改为两列卡片（不再左对齐堆叠） */
  .steps { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .step {
    display: block; text-align: center; padding: 18px 12px; background: #fff;
    border: 1px solid var(--c-line); border-radius: 14px; box-shadow: var(--shadow-s);
  }
  .step::after { display: none; }
  .step-n {
    margin: 0 auto 10px; width: 34px; height: 34px; font-size: 15px; border: 0; color: #fff;
    background: linear-gradient(135deg, #0a5cff, #00b8ff); box-shadow: 0 6px 14px rgba(10, 92, 255, .28);
  }
  .step:last-child:nth-child(odd) { grid-column: 1 / -1; }
  .step h4 { font-size: 14px; margin-bottom: 4px; }
  .step p { font-size: 12.5px; margin: 0; }
  .steps--wrap { grid-template-columns: repeat(2, 1fr); }

  /* 9. 首页案例区移动端只保留前 3 个，内容更清爽 */
  .home-cases .case-card:nth-child(n+4) { display: none; }
  .case-sum { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
  .case-thumb { height: 160px; }

  /* 10. 页脚精简：隐藏城市分站列表、冗长业务段落与导航链接列 */
  .f-links { display: none; }
  .f-biz { display: none; }
  .f-nav { display: none; }
  .footer-cols { gap: 22px; padding-bottom: 22px; }
  .footer .f-about p { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
  .f-bottom { padding: 16px 0 22px; }
  /* 3. 移动端隐藏顶部信息条 */
  .topbar { display: none; }

  /* 6. 移动端备案区：公司名与技术支持仍显示，ICP 与公安备案紧邻 */
  .f-icp { font-size: 12px; gap: 8px; flex-wrap: wrap; justify-content: center; }
  .f-icp .f-extra { display: inline; }
  .f-icp img { width: 15px; height: 19px; }

  .city-hero { padding: 20px; }
  .ch-stats { grid-template-columns: repeat(3, 1fr); width: 100%; gap: 8px; }
  .ch-stats b { font-size: 15px; }
  .ch-stats span { font-size: 11px; }

  .insight-minis { gap: 12px; }
  .im-cover { height: 88px; }
  .if-body { padding: 22px; }
  .insight-strip { grid-template-columns: repeat(2, 1fr); padding: 20px; }
  .honor-grid { grid-template-columns: repeat(2, 1fr); }
  .xcards { grid-template-columns: 1fr; }
  .steps--wrap { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr; }
  .case-res { grid-template-columns: repeat(2, 1fr); }
  .spec-list { grid-template-columns: 1fr; }
  .figure--hero img, .figure--half img { height: 200px; }
  .case-hero { min-height: 260px; height: auto; display: flex; align-items: flex-end; }
  .case-hero-inner { position: static; padding: 20px; }
  .crumb--hero { top: 14px; left: 20px; }
  .case-hero-inner h1 { font-size: 21px; }
  .contact-cards { grid-template-columns: 1fr; }
  .contact-info-grid { grid-template-columns: 1fr; }
  .svc-summary { grid-template-columns: repeat(2, 1fr); }
  .mf-row { grid-template-columns: 1fr; }
  .msg-form-card { padding: 22px; }
}