/* 重庆夔元科技官网 · 墨蓝 × 香槟金 */

:root {
  --brand: #13284A;
  --brand-dark: #0C1B33;
  --brand-soft: #EDEFF3;
  --accent: #C29B5F;
  --accent-dark: #8C6B37;
  --accent-soft: #F4EDE1;
  --ink: #13284A;
  --text: #232A35;
  --muted: #5E6470;
  --faint: #8F939B;
  --line: #E6E1D8;
  --bg: #FFFFFF;
  --bg-alt: #F5F3EE;
  --navy: #13284A;
  --navy-deep: #0B1628;
  --maxw: 1200px;
  --header-h: 72px;
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 64px); }
body { font-family: var(--font); font-size: 16px; line-height: 1.75; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
h1, h2, h3, h4 { color: var(--ink); font-weight: 600; line-height: 1.3; letter-spacing: -0.01em; text-wrap: balance; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }

/* ---------- 图标 ---------- */
.ic {
  width: 52px; height: 52px; flex-shrink: 0; display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand); border-radius: 2px;
}
.ic svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.ic.sm { width: 44px; height: 44px; }
.ic.sm svg { width: 22px; height: 22px; }
.ic.ai { background: var(--accent-soft); color: var(--accent-dark); }

/* ---------- 按钮与链接 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; height: 48px; padding: 0 26px;
  font-size: 15px; font-weight: 500; border: 1px solid transparent; border-radius: 2px;
  transition: background .2s, color .2s, border-color .2s; white-space: nowrap; cursor: pointer; font-family: inherit;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); }
.btn-white { background: #fff; color: var(--brand); }
.btn-white:hover { background: var(--brand-soft); }
.btn-ghost-white { border-color: rgba(255,255,255,.55); color: #fff; }
.btn-ghost-white:hover { background: rgba(255,255,255,.1); border-color: #fff; }
.btn-sm { height: 38px; padding: 0 18px; font-size: 14px; }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn-row { display: flex; align-items: center; gap: 16px 28px; flex-wrap: wrap; }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; color: var(--brand); font-weight: 500; }
.link-arrow::after { content: "→"; transition: transform .2s; }
.link-arrow:hover::after { transform: translateX(4px); }

/* ---------- 页头与下拉菜单 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.97);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; height: var(--header-h); gap: 40px; }
.logo img { height: 40px; width: auto; }
.menu { display: flex; gap: 36px; margin-left: auto; align-items: stretch; }
.menu > a, .menu-parent { display: flex; align-items: center; font-size: 15px; color: var(--muted); height: var(--header-h); transition: color .2s; }
.menu > a:hover, .menu-parent:hover, .menu > a.on, .menu-parent.on { color: var(--ink); }
.menu > a.on, .menu-parent.on { box-shadow: inset 0 -2px 0 var(--brand); }
.menu-group { position: relative; display: flex; }
.menu-parent::after {
  content: ""; width: 6px; height: 6px; margin-left: 8px; margin-top: -3px;
  border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg);
}
.submenu {
  display: none; position: absolute; top: 100%; left: -18px; min-width: 168px; padding: 8px 0;
  background: #fff; border: 1px solid var(--line); box-shadow: 0 14px 34px rgba(10, 26, 51, .1);
}
.menu-group:hover .submenu, .menu-group:focus-within .submenu { display: block; }
.submenu a { display: block; padding: 0 20px; line-height: 42px; font-size: 14px; color: var(--muted); }
.submenu a:hover { background: var(--bg-alt); color: var(--ink); }
.submenu a.on { color: var(--brand); }
.menu-toggle { display: none; margin-left: auto; width: 40px; height: 40px; background: none; border: 0; cursor: pointer; position: relative; }
.menu-toggle span { position: absolute; left: 10px; right: 10px; height: 1.5px; background: var(--ink); }
.menu-toggle span:nth-child(1) { top: 14px; }
.menu-toggle span:nth-child(2) { top: 20px; }
.menu-toggle span:nth-child(3) { top: 26px; }

/* ---------- 通用区块 ---------- */
.section { padding: 112px 0; }
.section.alt { background: var(--bg-alt); }
.section.tight { padding: 72px 0; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 600; letter-spacing: .12em; color: var(--brand); margin-bottom: 18px; }
.eyebrow::before { content: ""; width: 24px; height: 2px; background: currentColor; }
.sec-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 48px; margin-bottom: 52px; }
.sec-head > div { max-width: 720px; }
.sec-head h2 { font-size: 36px; }
.sec-head p { color: var(--muted); font-size: 17px; margin-top: 16px; text-wrap: pretty; }
.sec-head > .link-arrow { flex-shrink: 0; white-space: nowrap; padding-bottom: 4px; }
.lead-quote { font-size: 26px; line-height: 1.6; font-weight: 500; color: var(--ink); max-width: 900px; padding-left: 28px; border-left: 3px solid var(--brand); margin-bottom: 64px; text-wrap: balance; }

/* ---------- 首页 Hero ---------- */
.hero { padding: 88px 0 104px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 72px; align-items: center; }
.hero h1 { font-size: 50px; line-height: 1.22; letter-spacing: -.02em; }
.hero h1 em { font-style: normal; color: var(--brand); }
.hero .lead { font-size: 18px; color: var(--muted); max-width: 560px; margin: 26px 0 40px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 28px; margin-top: 44px; padding-top: 26px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.hero-points li { display: flex; align-items: center; gap: 8px; }
.hero-points li::before { content: ""; width: 6px; height: 6px; background: var(--accent); }
.hero-media { position: relative; }
.hero-media img { width: 100%; aspect-ratio: 5 / 4; object-fit: cover; }
.hero-badge {
  position: absolute; left: 24px; bottom: 24px; background: #fff; padding: 18px 22px; white-space: nowrap;
  box-shadow: 0 18px 40px rgba(10, 26, 51, .14); border-left: 3px solid var(--accent);
}
.hero-badge b { display: block; font-size: 15px; color: var(--ink); margin-bottom: 4px; }
.hero-badge span { font-size: 13px; color: var(--muted); }

/* ---------- 数据条（深海蓝） ---------- */
.facts-band { background: var(--navy); color: #fff; }
.facts { display: grid; grid-template-columns: repeat(4, 1fr); }
.fact { padding: 44px 32px; }
.fact:first-child { padding-left: 0; }
.fact + .fact { border-left: 1px solid rgba(255,255,255,.14); }
.fact b { display: block; font-size: 44px; font-weight: 600; line-height: 1.1; margin-bottom: 8px; }
.fact b small { font-size: 18px; font-weight: 500; margin-left: 3px; color: var(--accent); }
.fact span { font-size: 14px; color: rgba(255,255,255,.66); }

/* ---------- 诊断 → 规划 → 落地 流程 ---------- */
.flow-labels { display: grid; grid-template-columns: calc((100% - 112px) * 2 / 3 + 56px) 1fr; gap: 56px; margin-bottom: 18px; }
.flow-labels span { font-size: 13px; font-weight: 600; letter-spacing: .1em; padding-bottom: 10px; border-bottom: 2px solid; }
.flow-labels span:first-child { color: var(--brand); border-color: var(--brand); }
.flow-labels span:last-child { color: var(--ink); border-color: var(--navy); }
.flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 56px; }
.stage { position: relative; background: #fff; border: 1px solid var(--line); padding: 32px 30px 26px; }
.stage + .stage::before {
  content: "→"; position: absolute; left: -42px; top: 50%; transform: translateY(-50%);
  color: var(--brand); font-size: 24px; font-weight: 300;
}
.stage-top { display: flex; justify-content: space-between; align-items: flex-start; }
.stage .no { font-size: 13px; color: var(--faint); letter-spacing: .1em; }
.stage h3 { font-size: 24px; margin: 18px 0 4px; }
.stage .sub { font-size: 14px; color: var(--muted); margin-bottom: 18px; }
.stage li a, .stage li span { display: flex; justify-content: space-between; align-items: center; padding: 11px 0; border-top: 1px solid var(--line); font-size: 15px; color: var(--text); transition: color .2s; }
.stage li a::after { content: "→"; color: var(--brand); opacity: 0; transition: opacity .2s; }
.stage li a:hover { color: var(--brand); }
.stage li a:hover::after { opacity: 1; }
.stage.dark { background: var(--navy); border-color: var(--navy); }
.stage.dark h3 { color: #fff; }
.stage.dark .sub, .stage.dark .no { color: rgba(255,255,255,.6); }
.stage.dark li a { color: rgba(255,255,255,.88); border-top-color: rgba(255,255,255,.14); }
.stage.dark li a:hover { color: #fff; }
.stage.dark li a::after { color: var(--accent); }
.stage.dark .ic { background: rgba(255,255,255,.1); color: var(--accent); }
.stage.dark + .stage::before, .stage + .stage.dark::before { color: var(--brand); }

/* ---------- 深色图片区 ---------- */
.dark-photo { position: relative; color: #fff; background: var(--navy) url(../images/photos/kuimen.jpg) center 45% / cover no-repeat; }
.dark-photo::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11,22,40,.9) 0%, rgba(11,22,40,.7) 40%, rgba(11,22,40,.2) 80%), linear-gradient(0deg, rgba(11,22,40,.78), transparent 60%);  }
.dark-photo .wrap { position: relative; }
.dark-photo .eyebrow { color: var(--accent); }
.quote { font-size: 32px; line-height: 1.5; font-weight: 500; color: #fff; max-width: 900px; text-wrap: balance; }
.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 36px; margin-top: 72px; }
.pillars.three { grid-template-columns: repeat(3, 1fr); }
.pillar { border-top: 1px solid rgba(255,255,255,.28); padding-top: 24px; }
.pillar .no { font-size: 28px; font-weight: 300; color: var(--accent); display: block; margin-bottom: 10px; line-height: 1; }
.pillar h4 { font-size: 18px; margin-bottom: 8px; color: #fff; }
.pillar p { font-size: 14.5px; color: rgba(255,255,255,.7); }
.pillars.light { margin-top: 0; }
.pillars.light .pillar { border-top: 2px solid var(--ink); }
.pillars.light .pillar .no { color: var(--brand); }
.pillars.light .pillar h4 { color: var(--ink); }
.pillars.light .pillar p { color: var(--muted); }

/* ---------- 卡片网格 ---------- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.card { background: #fff; border: 1px solid var(--line); padding: 30px 28px; display: flex; flex-direction: column; }
.card.top { border-top: 3px solid var(--brand); }
.card .ic { margin-bottom: 20px; }
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { font-size: 15px; color: var(--muted); }
.card .std { font-size: 13px; color: var(--brand); margin-bottom: 8px; font-weight: 500; }
.card ul.dots { margin-top: 16px; }
.card .foot { margin-top: auto; padding-top: 20px; }
ul.dots li { position: relative; padding-left: 16px; margin-bottom: 6px; font-size: 14.5px; color: var(--muted); }
ul.dots li::before { content: ""; position: absolute; left: 0; top: 10px; width: 5px; height: 5px; background: var(--brand); }
.tag { align-self: flex-start; display: inline-block; margin-top: 18px; padding: 3px 10px; font-size: 12.5px; color: var(--brand); background: var(--brand-soft); }
.tag.ai { color: var(--accent-dark); background: var(--accent-soft); }

/* 精选案例 */
.case-card .meta { font-size: 13px; color: var(--faint); letter-spacing: .04em; margin-bottom: 10px; }
.case-card h3 { font-size: 20px; }
.case-card p { flex: 1; }

/* ---------- 服务详情块 ---------- */
.svc-block { display: grid; grid-template-columns: 4fr 8fr; gap: 64px; padding: 64px 0; border-top: 1px solid var(--line); }
.svc-block aside .ic { width: 64px; height: 64px; margin-bottom: 22px; }
.svc-block aside .ic svg { width: 30px; height: 30px; }
.svc-block aside .no { display: block; font-size: 13px; color: var(--faint); margin-bottom: 8px; letter-spacing: .1em; }
.svc-block aside h3 { font-size: 26px; }
.svc-block .desc { font-size: 17px; margin-bottom: 26px; }
.svc-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-bottom: 28px; }
.svc-cols h4 { font-size: 14px; color: var(--faint); font-weight: 500; letter-spacing: .06em; margin-bottom: 12px; }
.fde-points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 56px; }
.fde-points > div { background: var(--navy); color: #fff; padding: 28px; }
.fde-points h4 { color: #fff; font-size: 17px; margin: 16px 0 6px; }
.fde-points p { font-size: 14.5px; color: rgba(255,255,255,.7); }
.fde-points .ic { background: rgba(255,255,255,.1); color: var(--accent); }

/* ---------- 客户 logo 墙 & 资质条 ---------- */
.logos { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.logos > div {
  height: 148px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; padding: 24px;
  border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; transition: background .2s;
}
.logos > div:hover { background: var(--bg-alt); }
.logos img { height: 72px; max-width: 160px; object-fit: contain; }
.logos span { font-size: 13px; color: var(--muted); }
.cert-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 32px; }
.cert-strip a { display: flex; align-items: center; gap: 14px; padding: 18px 20px; background: var(--bg-alt); transition: background .2s; }
.cert-strip a:hover { background: var(--brand-soft); }
.cert-strip b { display: block; font-size: 15px; color: var(--ink); line-height: 1.3; }
.cert-strip span { font-size: 12.5px; color: var(--muted); }

/* ---------- 品牌色 CTA ---------- */
.cta-band { background: var(--brand); color: #fff; padding: 96px 0; position: relative; overflow: hidden; }
.cta-band::after {
  content: ""; position: absolute; right: -60px; top: 50%; transform: translateY(-50%); width: 420px; height: 420px;
  background: #fff; opacity: .08;
  -webkit-mask: url(../../favicon.png) center / contain no-repeat; mask: url(../../favicon.png) center / contain no-repeat;
}
.cta-band .wrap { position: relative; z-index: 1; display: grid; grid-template-columns: 7fr 5fr; gap: 64px; align-items: end; }
.cta-band h2 { color: #fff; font-size: 38px; }
.cta-band p { color: rgba(255,255,255,.8); margin-top: 16px; max-width: 520px; }
.contact-lines { display: grid; gap: 18px; }
.contact-lines > div { border-top: 1px solid rgba(255,255,255,.25); padding-top: 14px; }
.contact-lines span { display: block; font-size: 13px; color: rgba(255,255,255,.62); margin-bottom: 4px; }
.contact-lines a { font-size: 18px; font-weight: 500; color: #fff; }
.contact-lines .btn { justify-self: start; margin-top: 8px; }
.contact-lines .btn-white { color: var(--brand); font-size: 15px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--navy); color: rgba(255,255,255,.55); font-size: 14px; padding: 60px 0 36px; }
.foot-top { display: grid; grid-template-columns: 5fr 2fr 2fr 4fr; gap: 40px; padding-bottom: 40px; }
.foot-top img { height: 34px; width: auto; margin-bottom: 18px; }
.foot-top h4 { color: #fff; font-size: 14px; font-weight: 500; margin-bottom: 14px; }
.foot-top li { margin-bottom: 8px; }
.foot-top a:hover { color: #fff; }
.foot-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

/* ---------- 子页 Hero：统一高度 ---------- */
.page-hero { position: relative; overflow: hidden; background: var(--brand); color: #fff; display: flex; align-items: center; height: 380px; }
.page-hero::after {
  content: ""; position: absolute; right: -40px; bottom: -120px; width: 480px; height: 480px; background: #fff; opacity: .08;
  -webkit-mask: url(../../favicon.png) center / contain no-repeat; mask: url(../../favicon.png) center / contain no-repeat;
}
.page-hero .wrap { position: relative; z-index: 1; width: 100%; }
.page-hero .eyebrow { color: rgba(255,255,255,.85); }
.page-hero h1 { font-size: 46px; color: #fff; max-width: 1040px; }
.page-hero .lead { font-size: 18px; color: rgba(255,255,255,.84); max-width: 720px; margin-top: 22px; }
.page-hero .btn-row { margin-top: 28px; }

/* ---------- 图文双栏 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.split h2 { font-size: 34px; margin-bottom: 20px; }
.split p { color: var(--muted); margin-bottom: 16px; }
.split-media { position: relative; }
.split-media::before { content: ""; position: absolute; left: -24px; bottom: -24px; width: 55%; height: 55%; background: var(--brand-soft); }
.split-media img { position: relative; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }

/* ---------- 愿景 · 使命 · 价值观 ---------- */
.vm { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 24px; }
.vm > div { background: var(--navy); color: #fff; padding: 40px; position: relative; overflow: hidden; }
.vm > div::after { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--accent); }
.vm span { display: block; font-size: 13px; letter-spacing: .12em; color: var(--accent); margin-bottom: 14px; font-weight: 600; }
.vm p { font-size: 26px; font-weight: 500; line-height: 1.45; text-wrap: balance; }
.values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.values > div { background: #fff; border: 1px solid var(--line); padding: 30px 28px; }
.values b { display: block; font-size: 28px; color: var(--brand); margin-bottom: 8px; letter-spacing: .06em; }
.values p { font-size: 15px; color: var(--muted); }

/* ---------- 资质证书 ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.cert-card { background: #fff; border: 1px solid var(--line); cursor: pointer; transition: border-color .2s, transform .2s; }
.cert-card:hover { border-color: var(--brand); transform: translateY(-3px); }
.cert-card__thumb { aspect-ratio: 3 / 4; overflow: hidden; background: var(--bg-alt); }
.cert-card__thumb img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.cert-lightbox { position: fixed; inset: 0; z-index: 200; display: none; background: rgba(10,16,30,.82); align-items: center; justify-content: center; padding: 32px; }
.cert-lightbox.open { display: flex; }
.cert-lightbox__panel { position: relative; background: #fff; max-width: 640px; width: 100%; max-height: 90vh; overflow-y: auto; }
.cert-lightbox__close { position: absolute; top: 12px; right: 12px; width: 36px; height: 36px; border: 0; border-radius: 50%; background: rgba(10,16,30,.08); cursor: pointer; font-size: 16px; }
.cert-lightbox__info { padding: 22px 26px 26px; }
.cert-lightbox__info h3 { font-size: 19px; margin-bottom: 12px; }
.cert-lightbox__info dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; font-size: 14px; }
.cert-lightbox__info dt { color: var(--muted); }

/* ---------- 步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; position: relative; }
.steps::before { content: ""; position: absolute; left: 24px; right: 24px; top: 24px; height: 1px; background: var(--line); }
.step { position: relative; }
.step .n { width: 48px; height: 48px; display: grid; place-items: center; background: var(--brand); color: #fff; font-weight: 600; font-size: 16px; margin-bottom: 22px; position: relative; }
.step h3 { font-size: 17px; margin-bottom: 6px; }
.step p { font-size: 14.5px; color: var(--muted); }
.steps.vertical { grid-template-columns: 1fr; gap: 20px; margin-top: 32px; }
.steps.vertical::before { display: none; }
.steps.vertical .step { display: flex; gap: 18px; align-items: flex-start; }
.steps.vertical .n { margin: 0; flex-shrink: 0; }

/* ---------- 表单 ---------- */
.form-panel { background: #fff; border-top: 3px solid var(--brand); padding: 44px; box-shadow: 0 18px 50px rgba(10,26,51,.06); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 14px; font-weight: 500; color: var(--ink); }
.field label .opt { font-weight: 400; color: var(--faint); }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; font: inherit; font-size: 15px; color: var(--text);
  border: 1px solid var(--line); border-radius: 2px; background: #fff; transition: border-color .2s;
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--brand); }
.field .err { display: none; font-size: 12.5px; color: #C0364A; }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: #C0364A; }
.field.invalid .err { display: block; }
.form-foot { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; margin-top: 28px; }
.form-note { font-size: 13px; color: var(--faint); }
.form-msg { display: none; margin-top: 20px; padding: 14px 18px; font-size: 15px; }
.form-msg.show { display: block; }
.form-msg.ok { background: var(--brand-soft); color: var(--brand-dark); }
.form-msg.bad { background: #FBECEE; color: #A62B3D; }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 64px; align-items: start; }
.info-list li { display: flex; gap: 18px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.info-list li:first-child { border-top: 1px solid var(--ink); }
.info-list span { display: block; font-size: 13px; color: var(--faint); margin-bottom: 2px; }
.info-list b, .info-list a { font-size: 17px; font-weight: 500; color: var(--ink); }
.qr { display: flex; gap: 20px; align-items: center; margin-top: 32px; padding: 20px; background: var(--bg-alt); }
.qr img { width: 112px; height: 112px; background: #fff; padding: 6px; }
.qr b { display: block; font-size: 15px; color: var(--ink); margin-bottom: 4px; }
.qr span { font-size: 13px; color: var(--muted); }

/* ---------- 团队 ---------- */
.people { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.person { display: grid; grid-template-columns: 52px 1fr; gap: 22px; background: #fff; padding: 32px; border-top: 3px solid var(--brand); }
.person-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; margin-bottom: 8px; }
.person h3 { font-size: 20px; }
.person .years { flex-shrink: 0; font-size: 14px; color: var(--brand); font-weight: 600; }
.person .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.person .tags span { font-size: 12.5px; color: var(--brand); background: var(--brand-soft); padding: 2px 8px; }
.person p { font-size: 14.5px; color: var(--muted); }
.join-strip { display: flex; justify-content: space-between; align-items: center; gap: 32px; background: var(--navy); color: #fff; padding: 40px 44px; border-left: 4px solid var(--accent); }
.join-strip h3 { color: #fff; font-size: 24px; margin-bottom: 6px; }
.join-strip p { color: rgba(255,255,255,.7); }

/* ---------- 案例 ---------- */
.case-index { position: sticky; top: var(--header-h); z-index: 20; background: #fff; border-bottom: 1px solid var(--line); }
.case-index .wrap { display: flex; gap: 40px; overflow-x: auto; }
.case-index a { flex-shrink: 0; line-height: 60px; font-size: 15px; color: var(--muted); }
.case-index a b { font-weight: 500; color: var(--brand); margin-right: 8px; font-size: 13px; }
.case-index a:hover { color: var(--ink); }
.case-group { display: grid; grid-template-columns: 4fr 8fr; gap: 64px; padding: 80px 0; border-bottom: 1px solid var(--line); }
.case-group aside { position: sticky; top: calc(var(--header-h) + 100px); align-self: start; }
.case-group aside .ic { margin-bottom: 20px; }
.case-group aside .no { font-size: 13px; color: var(--faint); display: block; margin-bottom: 8px; letter-spacing: .1em; }
.case-group aside h2 { font-size: 26px; margin-bottom: 12px; }
.case-group aside p { font-size: 15px; color: var(--muted); }
.case-rows { display: grid; gap: 16px; }
.case-row { background: var(--bg-alt); padding: 26px 30px; border-left: 3px solid var(--brand); }
.case-row .meta { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; color: var(--faint); letter-spacing: .04em; margin-bottom: 8px; }
.case-row .meta em { font-style: normal; color: var(--brand); }
.case-row h3 { font-size: 19px; margin-bottom: 6px; }
.case-row p { color: var(--muted); font-size: 15px; }
.note { font-size: 13px; color: var(--faint); padding: 40px 0 0; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero-grid, .split, .contact-grid { grid-template-columns: 1fr; gap: 56px; }
  .hero-media { max-width: none; }
  .hero-media img { aspect-ratio: 16 / 9; }
  .sec-head, .case-group, .svc-block, .cta-band .wrap { grid-template-columns: 1fr; gap: 24px; }
  .case-group aside { position: static; }
  .flow-labels { display: none; }
  .flow { grid-template-columns: 1fr; gap: 48px; }
  .stage + .stage::before { left: 50%; top: -38px; transform: translateX(-50%) rotate(90deg); }
  .pillars, .grid-4, .values { grid-template-columns: 1fr 1fr; }
  .grid-3, .fde-points { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
  .steps::before { display: none; }
  .people, .vm { grid-template-columns: 1fr; }
  .cert-grid, .cert-strip { grid-template-columns: repeat(2, 1fr); }
  .foot-top { grid-template-columns: 1fr 1fr; }
  .join-strip { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 720px) {
  :root { --header-h: 60px; }
  .wrap { padding: 0 20px; }
  .section { padding: 72px 0; }
  .menu {
    display: none; position: absolute; top: var(--header-h); left: 0; right: 0; flex-direction: column; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line); padding: 8px 20px 16px;
  }
  .menu.open { display: flex; }
  .menu > a, .menu-parent { height: auto; line-height: 48px; border-bottom: 1px solid var(--line); box-shadow: none !important; }
  .menu-group { flex-direction: column; }
  .menu-parent::after { display: none; }
  .submenu { display: block; position: static; border: 0; box-shadow: none; padding: 0 0 0 16px; min-width: 0; }
  .submenu a { padding: 0; border-bottom: 1px solid var(--line); }
  .menu-toggle { display: block; }
  .site-header .btn { display: none; }
  .logo img { height: 34px; }
  .hero { padding: 56px 0 72px; }
  .hero h1 { font-size: 32px; }
  .hero .lead { font-size: 16px; }
  .hero-media img { aspect-ratio: 4 / 3; }
  .hero-badge { left: 12px; right: 12px; bottom: 12px; padding: 14px 16px; white-space: normal; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 16px; margin-bottom: 36px; }
  .card { padding: 24px 22px; }
  .card .ic { margin-bottom: 14px; }
  .stage { padding: 26px 22px 18px; }
  .facts { grid-template-columns: 1fr 1fr; }
  .fact, .fact:first-child { padding: 28px 16px; }
  .fact + .fact { border-left: 0; }
  .fact:nth-child(even) { border-left: 1px solid rgba(255,255,255,.14); }
  .fact:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,.14); }
  .fact b { font-size: 34px; }
  .page-hero { height: 340px; }
  .page-hero h1 { font-size: 30px; }
  .page-hero .lead { font-size: 16px; }
  .page-hero .btn-row { margin-top: 18px; gap: 10px; }
  .page-hero .btn { height: 40px; padding: 0 16px; font-size: 14px; }
  .page-hero .lead { margin-top: 14px; }
  .sec-head h2, .cta-band h2, .split h2 { font-size: 28px; }
  .quote { font-size: 22px; }
  .lead-quote { font-size: 20px; padding-left: 18px; }
  .vm p { font-size: 21px; }
  .vm > div { padding: 30px 26px; }
  .pillars, .grid-2, .grid-3, .grid-4, .values, .fde-points, .form-grid, .svc-cols { grid-template-columns: 1fr; }
  .pillars { gap: 28px; margin-top: 48px; }
  .pillars.light { margin-top: 0; }
  .steps { grid-template-columns: 1fr; }
  .logos { grid-template-columns: 1fr 1fr; }
  .logos > div { height: 124px; gap: 10px; padding: 16px; }
  .logos img { height: 52px; max-width: 120px; }
  .logos span { font-size: 12px; text-align: center; }
  .cert-strip { grid-template-columns: 1fr; }
  .cta-band { padding: 72px 0; }
  .form-panel { padding: 28px 22px; }
  .person { grid-template-columns: 1fr; padding: 26px 22px; }
  .case-group { padding: 56px 0; }
  .case-row { padding: 22px 20px; }
  .cert-grid { gap: 14px; }
  .cert-lightbox { padding: 16px; }
  .join-strip { padding: 30px 24px; }
  .foot-top { grid-template-columns: 1fr; gap: 28px; }
}

/* 服务块内的小卡片：更紧凑 */
.svc-block .card { padding: 24px 22px; }
.svc-block .card h3 { font-size: 17px; }
.svc-block .card .ic { width: 44px; height: 44px; margin-bottom: 16px; }
.svc-block .card .ic svg { width: 22px; height: 22px; }
.svc-block .card p { font-size: 14px; }
@media (max-width: 1024px) { .svc-block .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 720px) { .svc-block .grid-3 { grid-template-columns: 1fr; } }

/* 案例页：两大类标题与分类导航标签 */
.case-cat { padding: 88px 0 8px; border-bottom: 2px solid var(--ink); }
.case-cat h2 { font-size: 34px; margin-bottom: 8px; }
.case-cat p { color: var(--muted); padding-bottom: 20px; }
.case-index .ci-label { flex-shrink: 0; line-height: 60px; font-size: 12.5px; font-weight: 600; letter-spacing: .08em; color: var(--ink); padding-left: 16px; border-left: 2px solid var(--brand); margin-right: -16px; }
.case-index .ci-label:first-child { padding-left: 0; border-left: 0; }

/* 加入我们：FDE 释义块 */
.fde-def { background: var(--navy); color: #fff; padding: 48px 44px; border-left: 4px solid var(--accent); }
.fde-def span { display: block; font-size: 64px; font-weight: 700; line-height: 1; letter-spacing: .04em; color: #fff; }
.fde-def b { display: block; font-size: 18px; font-weight: 500; color: var(--accent); margin: 14px 0 18px; }
.fde-def p { color: rgba(255,255,255,.75); }
@media (max-width: 720px) {
  .case-cat { padding-top: 56px; }
  .case-cat h2 { font-size: 26px; }
  .fde-def { padding: 32px 26px; }
  .fde-def span { font-size: 48px; }
}

/* ========== 首页 v5：愿景使命 / 服务方块 / 精选项目 / 客户 logo ========== */
.hero-vm { margin: 34px 0 40px; max-width: 520px; border-top: 1px solid var(--line); }
.hero-vm > div { display: grid; grid-template-columns: 72px 1fr; align-items: center; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.hero-vm dt { font-size: 13px; font-weight: 600; letter-spacing: .12em; color: var(--brand); }
.hero-vm dd { font-size: 18px; color: var(--ink); font-weight: 500; }
.hero-vm .vals { display: flex; flex-wrap: wrap; gap: 8px; }
.hero-vm .vals span { padding: 4px 14px; font-size: 15px; background: var(--brand-soft); color: var(--brand-dark); }

.svc-panels { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; padding: 12px 0; }
.svc-panel {
  position: relative; overflow: hidden; display: flex; flex-direction: column; min-height: 460px; padding: 34px 32px 30px;
  color: #fff; cursor: pointer; outline: none;
  transition: transform .45s cubic-bezier(.2,.8,.2,1), box-shadow .45s, filter .45s;
}



.svc-panel::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(120% 70% at 100% 0%, rgba(255,255,255,.16), transparent 60%);
}
.sp-num { position: absolute; right: -6px; bottom: -34px; font-size: 180px; font-weight: 700; line-height: 1; color: rgba(255,255,255,.08); letter-spacing: -.04em; transition: transform .45s; }
.sp-top { display: flex; justify-content: space-between; align-items: flex-start; }
.sp-tag { font-size: 12.5px; letter-spacing: .12em; color: rgba(255,255,255,.78); }
.svc-panel .ic { background: rgba(255,255,255,.16); color: #fff; }
.svc-panel.p3 .ic { color: var(--accent); }
.svc-panel h3 { font-size: 34px; color: #fff; margin: 28px 0 6px; }
.sp-slogan { font-size: 16px; font-weight: 600; color: #fff; }
.sp-sub { font-size: 14px; color: rgba(255,255,255,.75); margin: 4px 0 22px; }
.svc-panel ul { position: relative; z-index: 1; }
.svc-panel li { padding: 10px 0; border-top: 1px solid rgba(255,255,255,.2); font-size: 15px; color: rgba(255,255,255,.92); }
.sp-more { position: relative; z-index: 1; margin-top: auto; padding-top: 22px; align-self: flex-start; font-size: 14px; font-weight: 600; color: #fff; display: inline-flex; gap: 8px; }
.sp-more::after { content: "→"; transition: transform .25s; }
.sp-more:hover::after { transform: translateX(4px); }
.svc-panels:hover .svc-panel:not(:hover):not(.is-active) { filter: saturate(.8) brightness(.94); }
.svc-panel:hover, .svc-panel:focus-visible, .svc-panel.is-active {
  transform: scale(1.045); z-index: 2; box-shadow: 0 30px 60px rgba(10,26,51,.28);
}
.svc-panel:hover .sp-num, .svc-panel.is-active .sp-num { transform: translateY(-14px); }

a.case-card { color: inherit; transition: border-color .25s, box-shadow .25s, transform .25s; }
a.case-card:hover { border-color: var(--brand); box-shadow: 0 16px 36px rgba(10,26,51,.08); transform: translateY(-3px); }
.cc-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.cc-top .ic { margin-bottom: 0 !important; }
.cc-top .tag { margin-top: 0; font-weight: 500; }
.case-card h3 { font-size: 17px; text-wrap: pretty; }

.logos .lockup { flex-direction: row; gap: 12px; }
.logos .lockup img { height: 56px; }
.logos .lockup span { font-size: 15px; font-weight: 600; line-height: 1.35; color: #3B4656; letter-spacing: .04em; }

.case-group .ai-results { align-self: start; }

@media (max-width: 1024px) {
  .svc-panels { grid-template-columns: 1fr; gap: 16px; }
  .svc-panel { min-height: 0; }
  .svc-panel:hover, .svc-panel:focus-visible, .svc-panel.is-active { transform: scale(1.02); }
  .hero-vm { max-width: none; }
}
@media (max-width: 720px) {
  .svc-panel { padding: 28px 22px 24px; }
  .svc-panel h3 { font-size: 28px; margin-top: 20px; }
  .sp-num { font-size: 130px; }
  .hero-vm dd { font-size: 16px; }
  .hero-vm > div { grid-template-columns: 60px 1fr; }
  .logos .lockup img { height: 40px; }
  .logos .lockup span { font-size: 13px; }
}

/* ================= 配色 A：墨蓝 × 香槟金 ================= */
.eyebrow { color: var(--accent-dark); }
.eyebrow::before { background: var(--accent) !important; }
.page-hero .eyebrow, .dark-photo .eyebrow, .cta-band .eyebrow { color: var(--accent); }
.hero h1 em { color: var(--accent-dark); }
.menu > a.on, .menu-parent.on { box-shadow: inset 0 -2px 0 var(--accent); }
.link-arrow::after { color: var(--accent-dark); }
.card.top, .person, .form-panel { border-top-color: var(--accent); }
.case-row { border-left-color: var(--accent); }
.case-row .meta em, .person .years, .card .std, .case-index a b { color: var(--accent-dark); }
ul.dots li::before { background: var(--accent); }
.fact b small, .pillar .no { color: var(--accent); }
.tag { color: var(--brand); background: var(--brand-soft); }
.tag.ai { color: var(--accent-dark); background: var(--accent-soft); }
.ic.ai { background: var(--accent-soft); color: var(--accent-dark); }
.values b { color: var(--brand); }
.vm > div::after, .fde-def, .join-strip { border-left-color: var(--accent); }
.vm span, .fde-def b { color: var(--accent); }
.hero-vm dt { color: var(--accent-dark); }
.hero-vm .vals span { background: transparent; border: 1px solid var(--line); color: var(--brand); }
.lead-quote { border-left-color: var(--accent); }

/* 首屏插图（替代实景照片） */
.hero-media img { aspect-ratio: 5 / 4; }
.hero-media::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: var(--accent); }

/* 子页横幅 / CTA：墨蓝 + K 字线条 */
.page-hero { background: var(--navy) url(../images/art/k-lines.svg) right max(-60px, calc((100vw - 1200px) / 2 - 140px)) center / auto 92% no-repeat; }
.page-hero::after { display: none; }
.page-hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px); background-size: 48px 48px; }
.page-hero .lead { color: rgba(255,255,255,.78); }
.cta-band { background: var(--navy) url(../images/art/k-lines.svg) right -120px center / auto 96% no-repeat; border-top: 3px solid var(--accent); }
.cta-band::after { display: none; }
.contact-lines .btn-white { color: var(--brand); }
.btn-white:hover { background: var(--accent-soft); }
.site-footer { background: var(--navy-deep); }
.facts-band { background: var(--navy-deep); }

/* 首页服务方块：白 / 白 / 墨蓝，金色顶线 */
.svc-section { background: var(--bg-alt); }
.svc-panel { background: #fff; color: var(--text); border-top: 3px solid var(--accent); box-shadow: 0 1px 0 var(--line); }
.svc-panel::after { display: none; }
.svc-panel .sp-tag { color: var(--accent-dark); }
.svc-panel h3 { color: var(--ink); }
.svc-panel .sp-slogan { color: var(--ink); }
.svc-panel .sp-sub { color: var(--muted); }
.svc-panel li { color: var(--text); border-top-color: var(--line); }
.svc-panel .ic { background: var(--brand-soft); color: var(--brand); }
.svc-panel .sp-more { color: var(--brand); }
.svc-panel .sp-more::after { color: var(--accent-dark); }
.svc-panel .sp-num { color: var(--accent); opacity: .12; }
.svc-panel.p3 { background: var(--navy); color: #fff; }
.svc-panel.p3 h3, .svc-panel.p3 .sp-slogan, .svc-panel.p3 .sp-more { color: #fff; }
.svc-panel.p3 .sp-sub { color: rgba(255,255,255,.7); }
.svc-panel.p3 .sp-tag, .svc-panel.p3 .sp-more::after { color: var(--accent); }
.svc-panel.p3 li { color: rgba(255,255,255,.9); border-top-color: rgba(255,255,255,.14); }
.svc-panel.p3 .ic { background: rgba(255,255,255,.08); color: var(--accent); }
.svc-panel.p3 .sp-num { opacity: .1; }
.svc-panels:hover .svc-panel:not(:hover):not(.is-active) { filter: none; opacity: .82; }
.svc-panel:hover, .svc-panel:focus-visible, .svc-panel.is-active { box-shadow: 0 30px 60px rgba(19,40,74,.18); }

/* 客户 logo：默认灰度，悬停还原 */
.logos img { filter: grayscale(1); opacity: .62; transition: filter .3s, opacity .3s; }
.logos > div:hover img { filter: none; opacity: 1; }
.logos .lockup span { color: var(--muted); transition: color .3s; }
.logos .lockup:hover span { color: var(--ink); }
.logos > div:hover { background: #fff; }

/* 图文双栏：照片双色调，衬底改金 */
.split-media::before { background: var(--accent-soft); }

/* 首页 FDE 板块：彩色重庆实景，左侧压暗保证文字可读 */
.dark-photo { padding: 120px 0; }
.dark-photo .pillar p { color: rgba(255,255,255,.78); }

/* 首页客户 logo：原色、一排 */
.logo-row { display: grid; grid-template-columns: repeat(7, 1fr); align-items: center; gap: 12px; background: #fff; border: 1px solid var(--line); padding: 28px 24px; }
.logo-row > div { display: flex; align-items: center; justify-content: center; gap: 8px; min-height: 64px; }
.logo-row img { height: 58px; width: auto; max-width: 100%; object-fit: contain; }
.logo-row .lockup img { height: 44px; }
.logo-row .lockup span { font-size: 13px; font-weight: 600; line-height: 1.35; color: #3B4656; white-space: nowrap; }
@media (max-width: 1024px) {
  .logo-row { grid-template-columns: repeat(4, 1fr); row-gap: 24px; }
}
@media (max-width: 720px) {
  .logo-row { grid-template-columns: repeat(3, 1fr); padding: 20px 12px; gap: 16px 8px; }
  .logo-row img { height: 44px; }
  .logo-row .lockup { grid-column: span 2; }
  .logo-row .lockup img { height: 34px; }
  .dark-photo { padding: 80px 0; }
}

/* 服务页：去掉卡片内"申请案例演示"后收紧间距 */
.svc-cols { margin-bottom: 0; }
.svc-block { padding: 56px 0; }
.card ul.dots { margin-top: 14px; }
.card ul.dots li { margin-bottom: 2px; }

@media (max-width: 1024px) {
  .page-hero, .cta-band { background-size: auto 70%; background-position: right -80px bottom -20px; }
}

/* 首页落地方块：分组清单 */
.svc-panel li.sp-group { padding: 11px 0; }
.svc-panel li.sp-group b { display: block; font-size: 15px; font-weight: 600; color: #fff; }
.svc-panel li.sp-group span { display: block; font-size: 13px; line-height: 1.6; color: rgba(255,255,255,.66); margin-top: 2px; }

/* ================= 夔元AI智能体工厂（2026-10） ================= */
/* 服务页卡片 / 首页落地方块里的产品入口 */
.prod-link { text-wrap: pretty; display: block; margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); font-size: 13.5px; line-height: 1.6; font-weight: 500; color: var(--brand); }
.card ul.dots + .prod-link { margin-top: 18px; }
.prod-link::after, .sp-prod::after { content: " →"; color: var(--accent-dark); }
.prod-link:hover { color: var(--accent-dark); }
.sp-prod { display: inline-block; margin-top: 4px; font-size: 12.5px; font-weight: 500; color: var(--accent); }
.sp-prod:hover { color: #fff; }
.svc-panel.p3 .sp-prod::after { color: var(--accent); }

/* 首页产品区块 */
.hp-grid { display: grid; grid-template-columns: 4fr 6fr; gap: 56px; align-items: center; }
.home-product h2 { font-size: 36px; }
.hp-sub { font-size: 19px; font-weight: 500; color: var(--ink); margin-top: 14px; }
.hp-body { color: var(--muted); margin-top: 12px; }
.hp-points { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 24px; margin: 28px 0 32px; }
.hp-points li { display: flex; gap: 12px; align-items: flex-start; }
.hp-points b { display: block; font-size: 15px; color: var(--ink); }
.hp-points div span { display: block; font-size: 13.5px; line-height: 1.6; color: var(--muted); }
.hp-points .ic { width: 40px; height: 40px; }
.hp-points .ic svg { width: 20px; height: 20px; }

/* 架构图 */
.arch { display: grid; grid-template-columns: 132px 1fr 132px; gap: 12px; margin: 0; }
.arch-side { background: var(--bg-alt); border: 1px solid var(--line); padding: 18px 12px; text-align: center; }
.section.alt .arch-side { background: #fff; }
.arch-side h5 { font-size: 15px; color: var(--ink); margin-bottom: 12px; }
.arch-side li { font-size: 13px; color: var(--muted); padding: 7px 0; }
.arch-core { display: grid; gap: 10px; }
.arch-layer { background: #fff; border: 1px solid var(--line); padding: 14px 18px; }
.arch-layer b { display: block; font-size: 15.5px; color: var(--ink); }
.arch-layer span { display: block; font-size: 13px; color: var(--muted); margin-top: 2px; }
.arch-layer.hl { border: 2px solid var(--accent); background: var(--accent-soft); }
.arch-base { grid-column: 1 / -1; border: 1px dashed var(--accent); padding: 12px; text-align: center; font-size: 14px; color: var(--ink); background: #fff; }
.arch.compact { grid-template-columns: 104px 1fr 104px; gap: 10px; }
.arch.compact .arch-side { padding: 14px 8px; }
.arch.compact .arch-side li { font-size: 12.5px; padding: 5px 0; }
.arch.compact .arch-layer { padding: 11px 14px; }
.arch.compact .arch-layer b { font-size: 14.5px; }
.arch.compact .arch-layer span { font-size: 12.5px; }
.arch.compact .arch-base { font-size: 13px; }

/* 产品页主视觉 */
.page-hero.product-hero { height: auto; padding: 88px 0 80px; background-image: none; }
.ph-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }
.product-hero h1 { font-size: 48px; }
.ph-sub { font-size: 20px; line-height: 1.6; color: #fff; font-weight: 500; margin-top: 18px; max-width: 600px; }
.product-hero .lead { font-size: 16px; margin-top: 14px; max-width: 600px; }
.product-hero .btn-row { margin-top: 30px; }
.ph-art img { width: 100%; }

/* 解决什么问题 */
.problems { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.problem { border: 1px solid var(--line); background: #fff; }
.problem .q { padding: 18px 24px; font-size: 15px; color: var(--muted); background: var(--bg-alt); }
.problem .q::before { content: "难题"; display: inline-block; margin-right: 10px; font-size: 12px; letter-spacing: .1em; color: var(--faint); }
.problem .a { padding: 18px 24px 22px; border-top: 2px solid var(--accent); }
.problem .a b { display: block; font-size: 18px; color: var(--ink); margin-bottom: 4px; }
.problem .a span { font-size: 15px; color: var(--muted); }

/* 核心能力 */
.cap { border: 1px solid var(--line); border-top: 3px solid var(--accent); padding: 30px 32px; background: #fff; }
.cap-head { display: flex; gap: 16px; align-items: center; margin-bottom: 14px; }
.cap-head h3 { font-size: 21px; }
.cap-head span { font-size: 13.5px; color: var(--accent-dark); }
.cap li { display: grid; grid-template-columns: 112px 1fr; gap: 12px; padding: 12px 0; border-top: 1px solid var(--line); }
.cap li b { font-size: 15px; color: var(--ink); }
.cap li span { font-size: 14.5px; color: var(--muted); }

/* 实测成果 */
.results { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.result { margin: 0; background: #fff; border: 1px solid var(--line); padding: 28px; display: flex; flex-direction: column; }
.r-head { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; }
.r-head h3 { font-size: 18px; }
.r-label { display: block; font-size: 12px; letter-spacing: .1em; color: var(--faint); margin-bottom: 4px; }
.r-time { text-align: right; flex-shrink: 0; }
.r-time b { display: block; font-size: 30px; line-height: 1.1; color: var(--accent-dark); white-space: nowrap; }
.r-time span { font-size: 12px; color: var(--faint); }
.r-out { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); font-size: 15px; color: var(--text); }
.result img { margin-top: 18px; width: 100%; height: 240px; object-fit: contain; background: var(--bg-alt); border: 1px solid var(--line); }
.result figcaption { align-self: flex-start; margin-top: 10px; padding: 2px 10px; font-size: 12.5px; color: var(--accent-dark); background: var(--accent-soft); }

/* 部署与交付 */
.deploy-steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; list-style: none; }
.deploy-steps li { position: relative; background: var(--navy); color: #fff; font-size: 15px; font-weight: 500; padding: 18px 14px 18px 28px; line-height: 1.4;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 50%, calc(100% - 14px) 100%, 0 100%, 14px 50%); }
.deploy-steps li:first-child { clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 50%, calc(100% - 14px) 100%, 0 100%); padding-left: 18px; }
.deploy-steps li:last-child { background: var(--navy-deep); }
.deploy-steps li span { display: block; font-size: 12px; color: var(--accent); letter-spacing: .1em; }
.deploy-nums { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 32px; }
.deploy-nums > div { background: var(--bg-alt); padding: 26px 28px; border-top: 3px solid var(--accent); }
.deploy-nums b { font-size: 40px; font-weight: 600; line-height: 1.1; color: var(--ink); }
.deploy-nums small { font-size: 17px; font-weight: 500; margin-left: 4px; color: var(--accent-dark); }
.deploy-nums p { font-size: 14.5px; color: var(--muted); margin-top: 8px; }
.deploy-more { display: grid; grid-template-columns: 1.3fr 1fr; gap: 24px; margin-top: 24px; }
.deploy-more h3 { font-size: 18px; margin-bottom: 12px; }
.spec table { width: 100%; border-collapse: collapse; font-size: 15px; }
.spec th { text-align: left; font-size: 13px; font-weight: 500; color: var(--faint); padding: 10px 0; border-bottom: 1px solid var(--line); }
.spec td { padding: 13px 0; border-bottom: 1px solid var(--line); color: var(--text); }
.spec td:last-child { color: var(--ink); font-weight: 500; }
.xc { background: var(--navy); color: rgba(255,255,255,.8); padding: 26px 28px; }
.xc h3 { color: #fff; }
.xc p { font-size: 15px; margin-bottom: 8px; }
.xc b { color: var(--accent); font-weight: 500; }

/* 产品 + 服务：四步 */
.steps.four { grid-template-columns: repeat(4, 1fr); }

/* 常见问题 */
.faq { display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; }
.faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 16px; font-size: 17px; font-weight: 600; color: var(--ink); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-weight: 400; font-size: 22px; line-height: 1; color: var(--accent-dark); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin-top: 10px; font-size: 15px; color: var(--muted); }

@media (max-width: 1024px) {
  .hp-grid, .ph-grid { grid-template-columns: 1fr; gap: 40px; }
  .ph-art { max-width: 520px; }
  .deploy-steps { grid-template-columns: repeat(3, 1fr); }
  .deploy-steps li, .deploy-steps li:first-child { clip-path: none; padding: 14px 16px; }
  .deploy-more, .results, .problems, .faq { grid-template-columns: 1fr; }
  .steps.four { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .page-hero.product-hero { height: auto; padding: 56px 0 56px; }
  .product-hero h1 { font-size: 32px; }
  .ph-sub { font-size: 17px; }
  .ph-art { display: none; }
  .home-product h2 { font-size: 28px; }
  .hp-sub { font-size: 16.5px; }
  .hp-points { grid-template-columns: 1fr; }
  .arch, .arch.compact { grid-template-columns: 1fr; }
  .arch-core { order: -1; }
  .arch-side { text-align: left; padding: 12px 14px; }
  .arch-side h5 { margin-bottom: 8px; }
  .arch-side ul { display: flex; flex-wrap: wrap; gap: 6px; }
  .arch-side li, .arch.compact .arch-side li { padding: 2px 8px; font-size: 12.5px; background: var(--bg-alt); }
  .section.alt .arch-side li { background: var(--bg-alt); }
  .deploy-steps { grid-template-columns: 1fr 1fr; }
  .deploy-nums { grid-template-columns: 1fr; }
  .cap { padding: 24px 20px; }
  .cap li { grid-template-columns: 1fr; gap: 2px; }
  .result { padding: 20px; }
  .result img { height: 180px; }
  .steps.four { grid-template-columns: 1fr; }
}
@media (max-width: 1024px) {
  .sec-head { flex-direction: column; align-items: flex-start; gap: 16px; }
}