/* =========================================================
   心米科技官网 · 2026 改版
   设计语言：深墨 + 深青 + 信号薄荷；细线、留白、真实产品界面
   ========================================================= */
:root {
  --ink: #0c181d;
  --ink-2: #142329;
  --text: #22343b;
  --text-2: #3d525a;
  --muted: #5c7078;
  --muted-2: #8b9ca2;
  --line: #e4e9e7;
  --line-strong: #d3dcd9;
  --bg: #ffffff;
  --bg-subtle: #f5f7f6;
  --bg-tint: #edf3f2;
  --brand: #0e5a6b;
  --brand-dark: #0a4653;
  --brand-mid: #16717f;
  --signal: #2fb8a8;
  --signal-2: #45c8b8;
  --copper: #b9855c;
  --on-dark: #f2f5f4;
  --on-dark-2: #c3cfd1;
  --on-dark-3: #8fa3a7;
  --danger: #a33a32;
  --warning: #a86a1f;
  --success: #1f7a4d;

  --r-xs: 2px;
  --r-sm: 4px;
  --r-md: 6px;
  --r-lg: 10px;

  --shadow-1: 0 1px 2px rgba(8, 16, 20, 0.04);
  --shadow-2: 0 8px 24px -12px rgba(8, 16, 20, 0.16);
  --shadow-3: 0 32px 64px -32px rgba(8, 16, 20, 0.24);

  --container: 1240px;
  --font: "Inter", "Noto Sans SC Variable", "PingFang SC", "HarmonyOS Sans SC",
    "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  --font-cn: "Noto Sans SC Variable", "PingFang SC", "HarmonyOS Sans SC",
    "Source Han Sans SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; transition: color 0.18s ease; }
a:hover { color: var(--brand-dark); }
button { font-family: inherit; }
h1, h2, h3, h4, h5 {
  margin: 0 0 0.5em;
  font-family: var(--font-cn);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-wrap: balance;
}
h1 { font-size: 44px; line-height: 1.15; }
h2 { font-size: 40px; line-height: 1.2; }
h3 { font-size: 24px; }
h4 { font-size: 19px; }
p { margin: 0 0 1em; }
ul, ol { padding-left: 1.2em; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }
::selection { background: var(--brand); color: #fff; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }
.container--narrow { max-width: 960px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--brand); color: #fff; padding: 10px 16px; border-radius: 0 0 4px 0;
}
.skip-link:focus { left: 0; }

/* ---------- 通用文字 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; font-weight: 600; letter-spacing: 0.14em;
  color: var(--brand); margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 20px; height: 1px; background: currentColor; display: inline-block; }
.eyebrow--light { color: var(--signal-2); }
.eyebrow--light::before { background: var(--signal-2); }
.kicker {
  display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: 0.12em;
  color: var(--brand); margin-bottom: 14px;
}
.lead { font-size: 19px; line-height: 1.7; color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.text-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600; color: var(--brand);
}
.text-link svg { width: 15px; height: 15px; transition: transform 0.18s ease; }
.text-link:hover svg { transform: translateX(3px); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 22px; border-radius: var(--r-sm);
  font-size: 14.5px; font-weight: 600; letter-spacing: 0.01em;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); color: #fff; }
.btn-outline { background: #fff; color: var(--ink); border-color: var(--line-strong); }
.btn-outline:hover { border-color: var(--brand); color: var(--brand); }
.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: var(--bg-tint); color: var(--ink); }
.btn-ghost-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.3); }
.btn-ghost-light:hover { background: rgba(255, 255, 255, 0.08); color: #fff; border-color: rgba(255, 255, 255, 0.55); }
.btn-sm { height: 38px; padding: 0 16px; font-size: 13px; }

/* ---------- 页头 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.18s ease;
}
.site-header.is-scrolled { box-shadow: var(--shadow-1); }
.header-inner { display: flex; align-items: center; gap: 36px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.brand-mark { width: 32px; height: auto; display: block; }
.brand-lock { display: flex; flex-direction: column; line-height: 1; }
.brand-word {
  font-family: var(--font-cn); font-weight: 800; font-size: 23px;
  letter-spacing: -0.02em; color: var(--ink); line-height: 1;
}
.brand-sub {
  font-family: "Inter", sans-serif; font-size: 8.5px; font-weight: 600;
  letter-spacing: 0.18em; color: var(--muted-2); margin-top: 3px;
}
.main-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-item { position: relative; display: flex; align-items: center; }
.nav-link {
  display: block; padding: 20px 13px; color: var(--text); font-size: 14.5px; font-weight: 500;
  border-bottom: 2px solid transparent; white-space: nowrap;
}
.nav-link:hover { color: var(--brand); }
.nav-link.is-active { color: var(--brand); border-bottom-color: var(--brand); }
.nav-caret {
  width: 20px; height: 20px; border: 0; background: transparent; cursor: pointer; position: relative; margin-left: -8px;
}
.nav-caret::before {
  content: ""; position: absolute; inset: 0; margin: auto; width: 6px; height: 6px;
  border-right: 1.5px solid var(--muted-2); border-bottom: 1.5px solid var(--muted-2);
  transform: rotate(45deg) translateY(-2px);
}
.nav-dropdown {
  position: absolute; top: calc(100% + 1px); left: 0;
  min-width: 210px; background: #fff; border: 1px solid var(--line); border-radius: var(--r-sm);
  box-shadow: var(--shadow-2); padding: 8px; opacity: 0; visibility: hidden; transform: translateY(4px);
  transition: opacity 0.16s ease, transform 0.16s ease, visibility 0.16s;
}
.nav-dropdown a { display: block; padding: 9px 12px; border-radius: var(--r-xs); color: var(--text); font-size: 13.5px; }
.nav-dropdown a:hover { background: var(--bg-subtle); color: var(--brand); }
.nav-item:hover .nav-dropdown, .nav-item:focus-within .nav-dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav-item.is-open .nav-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.icon-btn {
  width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%; color: var(--text); background: transparent;
}
.icon-btn:hover { background: var(--bg-subtle); color: var(--brand); }
.header-phone {
  display: inline-flex; align-items: center; gap: 6px; font-size: 13.5px; font-weight: 600; color: var(--text);
}
.header-phone:hover { color: var(--brand); }
.header-cta { height: 38px; padding: 0 16px; font-size: 13px; }
.nav-toggle { display: none; width: 44px; height: 44px; border: 0; background: transparent; color: var(--ink); }
.nav-toggle-close { display: none; }

/* ---------- Hero ---------- */
.hero-dark {
  position: relative; overflow: hidden; background: var(--ink); color: var(--on-dark);
}
.hero-dark::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 80px 80px;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 55%, #000 100%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 55%, #000 100%);
}
.hero-dark::after {
  content: ""; position: absolute; right: -180px; top: -120px; width: 620px; height: 620px;
  background: radial-gradient(circle, rgba(47, 184, 168, 0.12), transparent 62%);
  pointer-events: none;
}
.hero-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 5fr 7fr; gap: 56px; align-items: center;
  padding-top: 104px; padding-bottom: 80px;
}
.hero-copy h1 {
  color: #fff; font-size: clamp(42px, 5vw, 66px); line-height: 1.08;
  letter-spacing: -0.025em; margin-bottom: 24px; max-width: 560px;
}
.hero-copy h1 em { font-style: normal; color: var(--signal-2); }
.hero-lead { font-size: 17.5px; line-height: 1.8; color: rgba(255, 255, 255, 0.7); max-width: 520px; margin-bottom: 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
.hero-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0; font-size: 12px; color: var(--on-dark-3); }
.hero-meta span { padding: 0 14px; }
.hero-meta span:first-child { padding-left: 0; }
.hero-meta i { width: 1px; height: 11px; background: rgba(255, 255, 255, 0.18); display: inline-block; }
.hero-media { position: relative; }
.hero-window {
  border: 1px solid rgba(255, 255, 255, 0.14); border-radius: var(--r-md);
  overflow: hidden; box-shadow: var(--shadow-3); background: #fff;
}
.hero-window img { width: 100%; display: block; }
.hero-chip {
  position: absolute; background: #fff; color: var(--ink); border-radius: var(--r-sm);
  padding: 10px 14px; box-shadow: var(--shadow-2); display: flex; flex-direction: column; line-height: 1.15;
  border: 1px solid var(--line);
}
.hero-chip span { font-size: 10px; color: var(--muted); letter-spacing: 0.04em; }
.hero-chip strong { font-family: "Inter", sans-serif; font-size: 20px; font-weight: 600; color: var(--brand); margin-top: 2px; }
.hero-chip--a { left: -22px; bottom: 42px; }
.hero-chip--b { right: 26px; top: -18px; }
.hero-stats {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.12); padding: 26px 0 30px;
}
.hero-stat { padding: 0 32px; border-left: 1px solid rgba(255, 255, 255, 0.1); }
.hero-stat:first-child { padding-left: 0; border-left: 0; }
.hero-stat strong {
  display: block; font-family: "Inter", sans-serif; font-size: 38px; font-weight: 600;
  line-height: 1; letter-spacing: -0.01em; color: #fff; font-variant-numeric: tabular-nums;
}
.hero-stat span { display: block; margin-top: 7px; font-size: 12px; color: var(--on-dark-3); }

/* ---------- 服务对象条 ---------- */
.audience-bar { background: #fff; border-bottom: 1px solid var(--line); }
.audience-inner {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0;
  padding-top: 18px; padding-bottom: 18px; font-size: 13.5px; color: var(--text-2);
}
.audience-label { font-size: 11.5px; font-weight: 600; letter-spacing: 0.12em; color: var(--muted-2); margin-right: 28px; }
.audience-inner > span:not(.audience-label):not(.audience-since) { padding: 0 18px; border-left: 1px solid var(--line); }
.audience-since { margin-left: auto; font-size: 12px; color: var(--muted-2); }

/* ---------- 区块 ---------- */
.section { padding: 112px 0; }
.section--muted { background: var(--bg-subtle); }
.section--tight { padding: 80px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 48px; }
.section-head h2 { font-size: clamp(30px, 3.4vw, 42px); margin-bottom: 10px; }
.section-head p { color: var(--muted); font-size: 16.5px; margin: 0; max-width: 620px; }
.section-head--small { margin-bottom: 24px; }
.section-head--small h2 { font-size: 28px; }
.section-head--center { display: block; text-align: center; max-width: 760px; margin-left: auto; margin-right: auto; margin-bottom: 48px; }
.section-head--center p { margin-left: auto; margin-right: auto; }
.section-head--light h2 { color: #fff; }
.section-head--light p { color: var(--on-dark-2); }

/* ---------- 平台能力 ---------- */
.platform-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 72px; align-items: start; }
.platform-copy h2 { font-size: clamp(30px, 3.2vw, 40px); max-width: 460px; text-wrap: wrap; }
.platform-copy p { color: var(--muted); font-size: 16.5px; max-width: 420px; margin-bottom: 24px; }
.platform-rows { border-top: 1px solid var(--line); }
.platform-row {
  display: grid; grid-template-columns: 48px 1fr 24px; gap: 20px; align-items: start;
  padding: 26px 8px; border-bottom: 1px solid var(--line); color: var(--ink);
  transition: background 0.18s ease, padding 0.18s ease;
}
.platform-row:hover { background: var(--bg-subtle); padding-left: 16px; color: var(--ink); }
.platform-row .row-num { font-family: "Inter", sans-serif; font-size: 12px; color: var(--muted-2); padding-top: 4px; }
.platform-row h3 { font-size: 21px; margin-bottom: 5px; }
.platform-row p { font-size: 14px; color: var(--muted); margin: 0; line-height: 1.7; }
.platform-row .row-arrow { color: var(--muted-2); padding-top: 4px; transition: transform 0.18s ease; }
.platform-row:hover .row-arrow { transform: translateX(3px); color: var(--brand); }

/* ---------- UI 展示 ---------- */
.ui-showcase { margin: 0; border: 1px solid var(--line-strong); border-radius: var(--r-md); overflow: hidden; background: #fff; box-shadow: var(--shadow-2); }
.ui-showcase img { width: 100%; display: block; }
.ui-showcase figcaption { font-size: 12px; color: var(--muted-2); padding: 11px 16px; border-top: 1px solid var(--line); background: #fff; }
.ui-notes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 36px; }
.ui-note { border-top: 1px solid var(--line-strong); padding-top: 18px; }
.ui-note span { font-family: "Inter", sans-serif; font-size: 12px; color: var(--brand); font-weight: 600; }
.ui-note h3 { font-size: 18px; margin: 8px 0 6px; }
.ui-note p { font-size: 14px; color: var(--muted); margin: 0; line-height: 1.7; }

/* ---------- 深色数据段 ---------- */
.stat-band { background: var(--ink); color: var(--on-dark); padding: 96px 0; }
.stat-band .eyebrow { color: var(--signal-2); }
.stat-band h2 { color: #fff; font-size: clamp(30px, 3.4vw, 42px); max-width: 720px; }
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 48px; border-top: 1px solid rgba(255, 255, 255, 0.12); }
.stat-item { padding: 32px 32px 0; border-left: 1px solid rgba(255, 255, 255, 0.1); }
.stat-item:first-child { padding-left: 0; border-left: 0; }
.stat-item::before { content: ""; display: block; width: 48px; height: 2px; background: var(--signal-2); margin-bottom: 22px; }
.stat-item strong { display: block; font-family: "Inter", sans-serif; font-size: clamp(40px, 4vw, 56px); font-weight: 600; line-height: 1; color: #fff; font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.stat-item span { display: block; margin-top: 10px; font-size: 13px; color: var(--on-dark-3); }
.stat-note { margin: 40px 0 0; font-size: 13px; color: var(--on-dark-3); max-width: 720px; }

/* ---------- 软件系统 ---------- */
.software-feature { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: center; border-top: 1px solid var(--line); padding-top: 40px; }
.software-feature h3 { font-size: 32px; margin: 6px 0 12px; }
.software-feature p { color: var(--muted); font-size: 16px; max-width: 440px; }
.software-feature-media { border: 1px solid var(--line-strong); border-radius: var(--r-md); overflow: hidden; box-shadow: var(--shadow-2); background: #fff; }
.software-feature-media img { width: 100%; display: block; }
.check-list { list-style: none; padding: 0; margin: 18px 0 24px; display: grid; gap: 10px; }
.check-list li { position: relative; padding-left: 22px; font-size: 14.5px; color: var(--text-2); }
.check-list li::before { content: ""; position: absolute; left: 0; top: 9px; width: 10px; height: 6px; border-left: 1.5px solid var(--brand); border-bottom: 1.5px solid var(--brand); transform: rotate(-45deg); }
.index-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 56px; margin-top: 48px; }
.index-group-label { font-size: 11px; font-weight: 600; letter-spacing: 0.14em; color: var(--muted-2); padding-bottom: 12px; border-bottom: 1px solid var(--line-strong); }
.index-group .index-row:first-of-type { border-top: 0; }
.hardware-group { margin-top: 40px; }
.hardware-group .index-group-label { margin-bottom: 24px; }
.hardware-group .card-grid { padding-top: 0; }
.index-row {
  display: grid; grid-template-columns: 34px 1fr 20px; gap: 16px; align-items: start;
  padding: 22px 4px; border-top: 1px solid var(--line); color: var(--ink);
  transition: background 0.18s ease;
}
.index-row:hover { background: var(--bg-subtle); color: var(--ink); }
.index-row .index-num { font-family: "Inter", sans-serif; font-size: 11px; color: var(--muted-2); padding-top: 5px; }
.index-row h3 { font-size: 18px; margin-bottom: 3px; }
.index-row p { font-size: 13px; color: var(--muted); margin: 0; line-height: 1.6; }
.index-row .index-arrow { color: var(--muted-2); transition: transform 0.18s ease; }
.index-row:hover .index-arrow { transform: translateX(3px); color: var(--brand); }

/* ---------- 场景 ---------- */
.scene-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 64px; align-items: start; }
.scene-copy h2 { font-size: clamp(30px, 3.4vw, 42px); max-width: 380px; }
.scene-copy p { color: var(--muted); font-size: 16.5px; max-width: 400px; margin-bottom: 24px; }
.scene-panel { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 32px; align-items: stretch; }
.scene-images { position: relative; min-height: 420px; border-radius: var(--r-md); overflow: hidden; background: var(--bg-tint); }
.scene-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 0.4s ease; }
.scene-img.is-active { opacity: 1; }
.scene-note { position: absolute; right: 10px; bottom: 10px; z-index: 2; font-size: 10px; color: rgba(255, 255, 255, 0.82); background: rgba(8, 16, 20, 0.38); padding: 2px 7px; border-radius: 2px; }
.band-note { position: absolute; right: 24px; bottom: 20px; z-index: 2; font-size: 10px; color: rgba(255, 255, 255, 0.8); background: rgba(8, 16, 20, 0.38); padding: 2px 7px; border-radius: 2px; }
.scene-rows { border-top: 1px solid var(--line); }
.scene-row {
  display: grid; grid-template-columns: 32px 1fr 20px; gap: 14px; align-items: start;
  padding: 20px 6px; border-bottom: 1px solid var(--line); color: var(--ink); transition: background 0.18s ease;
}
.scene-row:hover, .scene-row.is-active { background: var(--bg-subtle); color: var(--ink); }
.scene-num { font-family: "Inter", sans-serif; font-size: 11px; color: var(--muted-2); padding-top: 5px; }
.scene-row h3 { font-size: 19px; margin-bottom: 3px; }
.scene-row p { font-size: 13px; color: var(--muted); margin: 0; line-height: 1.6; }
.scene-row .scene-arrow { color: var(--muted-2); }
.scene-row.is-active .scene-arrow { color: var(--brand); }

/* ---------- 硬件场景带 ---------- */
.hardware-band { position: relative; height: 480px; overflow: hidden; background: var(--ink); }
.hardware-band > img { width: 100%; height: 100%; object-fit: cover; }
.hardware-band::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(8, 16, 20, 0.05) 0%, rgba(8, 16, 20, 0.62) 100%);
}
.hardware-band-copy { position: absolute; left: 0; right: 0; bottom: 64px; z-index: 1; color: #fff; }
.hardware-band-copy h2 { color: #fff; font-size: clamp(30px, 3.4vw, 42px); margin-bottom: 10px; }
.hardware-band-copy p { color: rgba(255, 255, 255, 0.78); font-size: 16px; max-width: 560px; margin-bottom: 24px; }
.hardware-strip { display: flex; flex-wrap: wrap; align-items: center; gap: 0; padding-top: 20px; padding-bottom: 20px; background: #fff; border-bottom: 1px solid var(--line); }
.hardware-strip span { font-size: 13.5px; color: var(--text-2); padding: 0 22px; border-left: 1px solid var(--line); white-space: nowrap; }
.hardware-strip span:first-child { padding-left: 0; border-left: 0; }

/* ---------- 双栏列表 ---------- */
.dual-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.dual-col .section-head { margin-bottom: 8px; }
.text-list { border-top: 1px solid var(--line); }
.text-row {
  display: grid; grid-template-columns: 82px 1fr 20px; gap: 16px; align-items: start;
  padding: 22px 4px; border-bottom: 1px solid var(--line); color: var(--ink);
  transition: background 0.18s ease;
}
.text-row:hover { background: var(--bg-subtle); color: var(--ink); }
.text-row-tag { font-size: 11px; font-weight: 600; letter-spacing: 0.06em; color: var(--brand); padding-top: 4px; }
.text-row h3 { font-size: 18px; line-height: 1.5; margin-bottom: 4px; }
.text-row p { font-size: 13px; color: var(--muted); margin: 0; line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.text-row .text-arrow { color: var(--muted-2); padding-top: 3px; transition: transform 0.18s ease; }
.text-row:hover .text-arrow { transform: translateX(3px); color: var(--brand); }

/* ---------- CTA ---------- */
.cta-band { background: var(--brand); color: #fff; padding: 80px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-inner h2 { color: #fff; font-size: clamp(28px, 3vw, 36px); max-width: 640px; margin-bottom: 8px; }
.cta-inner p { color: rgba(255, 255, 255, 0.78); margin: 0; font-size: 15.5px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
.site-footer { background: #081014; color: var(--on-dark-3); }
.footer-grid {
  display: grid; grid-template-columns: 1.7fr repeat(4, 1fr) auto; gap: 32px;
  padding-top: 72px; padding-bottom: 48px;
}
.footer-brand .brand-word { color: #fff; }
.footer-brand .brand-sub { color: rgba(255, 255, 255, 0.42); }
.footer-brand p { font-size: 13px; line-height: 1.8; color: var(--on-dark-3); max-width: 320px; margin: 18px 0 0; }
.footer-contact { list-style: none; padding: 0; margin: 18px 0 0; display: flex; flex-direction: column; gap: 8px; font-size: 12.5px; }
.footer-contact li { display: flex; gap: 8px; align-items: flex-start; }
.footer-contact svg { flex: 0 0 auto; margin-top: 4px; color: var(--signal); width: 15px; height: 15px; }
.footer-contact a { color: var(--on-dark-2); }
.footer-contact a:hover { color: #fff; }
.footer-col h4 { color: #fff; font-size: 12.5px; font-weight: 600; letter-spacing: 0.06em; margin-bottom: 14px; }
.footer-col a { display: block; font-size: 13px; color: var(--on-dark-3); padding: 4px 0; }
.footer-col a:hover { color: #fff; }
.footer-qr { text-align: center; font-size: 11px; color: var(--on-dark-3); }
.footer-qr img { width: 84px; height: 84px; border-radius: 4px; background: #fff; padding: 5px; margin-bottom: 8px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 16px 0; font-size: 12px; color: #6f8388; }
.footer-bottom-inner { display: flex; flex-wrap: wrap; gap: 8px 22px; align-items: center; justify-content: center; }
.footer-bottom a { color: #8fa3a7; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 内页页头 ---------- */
.page-hero { background: var(--bg-subtle); border-bottom: 1px solid var(--line); }
.page-hero--compact { padding: 52px 0 44px; }
.page-hero--article, .page-hero--product { padding: 44px 0 40px; }
.page-hero h1 { font-size: clamp(30px, 3.6vw, 46px); margin: 10px 0 12px; }
.page-hero p { color: var(--muted); max-width: 720px; margin: 0; font-size: 16.5px; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 7px; font-size: 12px; color: var(--muted-2); align-items: center; }
.breadcrumbs a { color: var(--muted); }
.breadcrumbs a:hover { color: var(--brand); }

/* ---------- 列表页 ---------- */
.listing-hero { background: var(--bg-subtle); border-bottom: 1px solid var(--line); padding: 52px 0 40px; }
.listing-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; }
.listing-head h1 { font-size: clamp(32px, 3.8vw, 46px); margin: 8px 0 10px; }
.listing-head p { color: var(--muted); font-size: 16.5px; margin: 0; max-width: 680px; }
.listing-count { font-size: 12px; color: var(--muted-2); white-space: nowrap; }
.listing-body { padding: 44px 0 88px; }
.listing-intro { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: 28px 32px; margin-bottom: 32px; }
.filter-row { display: flex; flex-wrap: wrap; gap: 28px; border-bottom: 1px solid var(--line); margin-bottom: 8px; }
.filter-link { font-size: 14px; font-weight: 600; color: var(--muted); padding: 13px 0; border-bottom: 2px solid transparent; }
.listing-note { font-size: 12px; color: var(--muted-2); margin: 10px 0 0; }
.filter-link:hover, .filter-link.is-active { color: var(--brand); border-bottom-color: var(--brand); }

.featured-article { display: grid; grid-template-columns: 7fr 5fr; gap: 40px; align-items: center; padding: 32px 0 48px; border-bottom: 1px solid var(--line); color: var(--ink); }
.featured-article:hover { color: var(--ink); }
.featured-article-media { position: relative; border-radius: var(--r-xs); overflow: hidden; background: var(--bg-tint); aspect-ratio: 16 / 10; }
.featured-article-media img { width: 100%; height: 100%; object-fit: cover; }
.featured-article-body .kicker { margin-bottom: 10px; }
.featured-article-body h2 { font-size: 32px; line-height: 1.3; margin-bottom: 12px; }
.featured-article-body p { font-size: 15.5px; color: var(--muted); margin-bottom: 14px; }
.featured-article-meta { font-size: 12px; color: var(--muted-2); display: flex; gap: 14px; }

.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px 32px; padding-top: 40px; }
.post-card { display: flex; flex-direction: column; color: var(--ink); }
.post-card:hover { color: var(--ink); }
.post-card-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; border-radius: var(--r-xs); background: var(--bg-tint); margin-bottom: 16px; }
.cover-note { position: absolute; right: 10px; bottom: 10px; z-index: 2; font-size: 10px; color: rgba(255, 255, 255, 0.84); background: rgba(8, 16, 20, 0.4); padding: 2px 7px; border-radius: 2px; }
.post-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.post-card:hover .post-card-media img { transform: scale(1.03); }
.post-card .kicker { font-size: 11px; margin-bottom: 8px; }
.post-card h3 { font-size: 20px; line-height: 1.45; margin-bottom: 8px; }
.post-card:hover h3 { color: var(--brand); }
.post-card p { font-size: 14px; color: var(--muted); margin: 0 0 12px; line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-card time { font-size: 12px; color: var(--muted-2); margin-top: auto; }

.pagination { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; justify-content: center; margin-top: 56px; font-size: 14px; font-weight: 600; }
.pagination a { color: var(--muted); }
.pagination a:hover, .pagination .is-current { color: var(--brand); border-bottom: 2px solid var(--brand); }
.pagination-info { text-align: center; color: var(--muted-2); font-size: 12px; margin-top: 14px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 28px; }
.chip { padding: 0; border: 0; background: transparent; color: var(--muted); font-size: 14px; font-weight: 600; border-bottom: 2px solid transparent; padding-bottom: 6px; }
.chip:hover { color: var(--brand); border-bottom-color: var(--brand); }

/* ---------- 文章页 ---------- */
.article-hero { background: var(--bg-subtle); border-bottom: 1px solid var(--line); padding: 48px 0 44px; }
.article-head h1 { font-size: clamp(32px, 4vw, 48px); line-height: 1.25; max-width: 900px; margin: 8px 0 16px; }
.article-dek { font-size: 19px; line-height: 1.7; color: var(--muted); max-width: 760px; margin-bottom: 18px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; font-size: 12.5px; color: var(--muted-2); }
.article-meta a { color: var(--muted); }
.article-meta .meta-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--line-strong); }
.copy-link { border: 0; background: transparent; color: var(--muted); font-size: 12.5px; padding: 0; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.copy-link:hover { color: var(--brand); }

.article-layout {
  display: grid; grid-template-columns: 200px minmax(0, 720px); gap: 48px;
  justify-content: center; padding: 56px 0 88px;
}
.article-toc { position: sticky; top: 96px; align-self: start; }
.article-toc h3 { font-size: 11px; font-weight: 600; letter-spacing: 0.14em; color: var(--muted-2); margin-bottom: 14px; }
.article-toc ol { list-style: none; padding: 0; margin: 0; }
.article-toc li { margin: 0; }
.article-toc a { display: block; font-size: 12.5px; line-height: 1.5; color: var(--muted); padding: 6px 0; border-left: 1px solid var(--line); padding-left: 12px; }
.article-toc a:hover { color: var(--brand); border-left-color: var(--brand); }
.article-toc .toc-level-3 { padding-left: 24px; }
.article-main { min-width: 0; }
.article-body.prose { max-width: 720px; }

.key-points { background: var(--bg-subtle); border-top: 2px solid var(--brand); padding: 24px 28px; margin-bottom: 44px; }
.key-points > span { display: block; font-size: 11px; font-weight: 600; letter-spacing: 0.14em; color: var(--brand); margin-bottom: 10px; }
.key-points ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.key-points li { position: relative; padding-left: 18px; font-size: 14.5px; line-height: 1.65; color: var(--text-2); }
.key-points li::before { content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 6px; border-radius: 50%; background: var(--signal); }

.prose { font-size: 17px; line-height: 1.9; color: var(--text); overflow-wrap: break-word; }
.prose h2 { font-size: 28px; line-height: 1.4; margin: 64px 0 16px; scroll-margin-top: 96px; }
.prose h2::before { content: ""; display: block; width: 40px; height: 2px; background: var(--brand); margin-bottom: 16px; }
.prose h3 { font-size: 21px; line-height: 1.5; margin: 40px 0 12px; scroll-margin-top: 96px; }
.prose h4 { font-size: 18px; margin: 28px 0 8px; }
.prose p, .prose div { margin: 0 0 1.5em; }
.prose img { border-radius: var(--r-xs); margin: 40px auto; }
.prose a { color: var(--brand); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.prose a:hover { color: var(--brand-dark); }
.prose ul, .prose ol { margin: 0 0 1.5em 1.2em; }
.prose li { margin-bottom: 10px; }
.prose blockquote { margin: 40px 0; padding: 0 0 0 24px; border-left: 2px solid var(--brand); color: var(--text-2); font-size: 21px; line-height: 1.7; }
.prose blockquote p:last-child { margin-bottom: 0; }
.prose table { width: 100%; border-collapse: collapse; margin: 0; font-size: 14.5px; }
.prose th, .prose td { border: 0; border-bottom: 1px solid var(--line); padding: 12px 14px; text-align: left; }
.prose th { background: var(--bg-subtle); font-weight: 600; color: var(--ink); border-bottom: 1px solid var(--line-strong); }
.prose tr:last-child td { border-bottom: 0; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 48px 0; }
.prose .advice { background: var(--bg-subtle); border: 1px solid var(--line); border-top: 2px solid var(--brand); padding: 24px 28px; margin: 40px 0; }
.prose .advice h3 { margin: 0 0 12px; font-size: 18px; }
.prose .advice ul { margin: 0 0 0 1.1em; }
.prose .advice li { margin-bottom: 8px; font-size: 15px; color: var(--text-2); }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 1.2em 0; }
.table-hint { display: none; font-size: 12px; color: var(--muted-2); margin: 0 0 8px; }

.article-cta { background: var(--ink); color: #fff; border-radius: var(--r-md); padding: 32px; margin: 48px 0; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.article-cta h3 { color: #fff; font-size: 22px; margin-bottom: 6px; }
.article-cta p { color: var(--on-dark-2); font-size: 14px; margin: 0; }
.author-box { display: flex; gap: 16px; align-items: flex-start; border-top: 1px solid var(--line); margin-top: 40px; padding-top: 24px; }
.author-avatar { width: 48px; height: 48px; border-radius: 50%; background: var(--bg-tint); color: var(--brand); display: flex; align-items: center; justify-content: center; font-family: var(--font-cn); font-weight: 700; font-size: 18px; flex: 0 0 auto; }
.author-box h4 { margin: 0 0 3px; font-size: 16px; }
.author-box .author-title { font-size: 12.5px; color: var(--muted-2); margin-bottom: 6px; }
.author-box p { font-size: 13.5px; color: var(--muted); margin: 0; line-height: 1.7; }
.article-disclaimer { font-size: 13px; color: var(--muted); border-left: 1px solid var(--line-strong); padding-left: 16px; margin-top: 28px; line-height: 1.8; }
.article-disclaimer strong { color: var(--text-2); }
.article-sources { margin: 32px 0; padding: 18px 20px; background: var(--bg-subtle); border-radius: var(--r-xs); }
.article-sources h2 { font-size: 18px; margin: 0 0 8px; padding: 0; border: 0; }
.article-sources h2::before { display: none; }
.article-sources-body { white-space: pre-line; font-size: 13.5px; color: var(--muted); line-height: 1.8; }
.related { margin-top: 56px; }
.related-products { margin-top: 8px; }
.related .text-row { grid-template-columns: 1fr 20px; }
.related .text-row h3 { font-size: 18px; }
.related .text-row p { display: none; }
.toc-inline { display: none; background: var(--bg-subtle); border: 1px solid var(--line); border-radius: var(--r-xs); padding: 14px 18px; margin-bottom: 28px; }
.toc-inline summary { cursor: pointer; font-weight: 600; color: var(--brand); font-size: 14px; }
.toc-inline ol { margin: 12px 0 0; padding-left: 0; list-style: none; }
.toc-inline a { display: block; font-size: 13.5px; color: var(--muted); padding: 5px 0; }

/* ---------- 产品详情 ---------- */
.product-hero { background: var(--bg-subtle); border-bottom: 1px solid var(--line); padding: 44px 0 56px; }
.product-hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.product-copy h1 { font-size: clamp(32px, 3.8vw, 46px); margin: 10px 0 14px; }
.product-summary { font-size: 17.5px; line-height: 1.8; color: var(--muted); max-width: 520px; margin-bottom: 18px; }
.product-meta { display: flex; flex-wrap: wrap; gap: 8px 0; font-size: 13px; color: var(--muted); margin-bottom: 26px; }
.product-meta span { padding: 0 14px; border-left: 1px solid var(--line-strong); }
.product-meta span:first-child { padding-left: 0; border-left: 0; }
.product-note { font-size: 12px; color: var(--muted-2); margin: 14px 0 0; }
.product-media { border: 1px solid var(--line-strong); border-radius: var(--r-md); overflow: hidden; background: #fff; box-shadow: var(--shadow-2); }
.product-media img { width: 100%; display: block; }
.media-note { display: block; font-size: 11px; color: var(--muted-2); padding: 10px 14px; border-top: 1px solid var(--line); }
.product-nav { position: sticky; top: 64px; z-index: 40; background: rgba(255, 255, 255, 0.96); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.product-nav-inner { display: flex; gap: 32px; }
.product-nav a { font-size: 14px; font-weight: 500; color: var(--muted); padding: 15px 0; border-bottom: 2px solid transparent; }
.product-nav a:hover, .product-nav a.is-active { color: var(--brand); border-bottom-color: var(--brand); }
.product-body { max-width: 800px; margin: 0 auto; padding: 56px 0 88px; }
.product-main .prose { max-width: 800px; }
.product-section { margin-bottom: 56px; }
.product-section h2 { font-size: 28px; margin-bottom: 12px; }
.product-cta { background: var(--ink); color: #fff; border-radius: var(--r-md); padding: 32px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; margin: 48px 0; }
.product-cta h3 { color: #fff; font-size: 22px; margin-bottom: 6px; }
.product-cta p { color: var(--on-dark-2); font-size: 14px; margin: 0; }
.aside-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: 22px; }
.aside-card h3 { font-size: 17px; margin-bottom: 8px; }
.aside-card p { font-size: 13px; color: var(--muted); }
.aside-card .btn { width: 100%; margin: 10px 0; }
.aside-phone { display: inline-flex; align-items: center; gap: 7px; font-weight: 600; color: var(--brand); font-size: 14px; }
.aside-card--soft { background: var(--bg-subtle); }
.aside-card--soft > a { display: block; padding: 7px 0; font-size: 14px; border-bottom: 1px solid var(--line); }
.aside-card--soft > a:last-child { border-bottom: 0; }
.aside-hours { font-size: 12px; color: var(--muted-2); margin: 8px 0 0; }
.scenario-tags { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 22px; }
.scenario-tag { background: #fff; border: 1px solid var(--line); border-radius: var(--r-xs); padding: 9px 14px; font-size: 13.5px; font-weight: 500; color: var(--text); }
.scenario-tag:hover { border-color: var(--brand); color: var(--brand); }

/* ---------- 联系 / 关于 / 组织架构 ---------- */
.page-body { padding: 44px 0 88px; }
.page-body > .prose { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: 36px; max-width: 900px; margin-left: auto; margin-right: auto; }
.contact-main { display: flex; align-items: flex-start; justify-content: space-between; gap: 40px; flex-wrap: wrap; background: var(--ink); color: #fff; border-radius: var(--r-md); padding: 40px; }
.contact-main-copy h2 { color: #fff; font-size: 32px; margin: 8px 0 10px; }
.contact-main-lead { color: rgba(255, 255, 255, 0.78); max-width: 620px; font-size: 15px; }
.contact-main .eyebrow { color: var(--signal-2); }
.contact-facts { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 9px; font-size: 14px; color: var(--on-dark-2); }
.contact-facts li { display: flex; gap: 9px; align-items: flex-start; }
.contact-facts svg { flex: 0 0 auto; margin-top: 4px; color: var(--signal); }
.contact-facts a { color: #fff; text-decoration: underline; }
.contact-main-actions { display: flex; flex-direction: column; gap: 10px; min-width: 170px; }
.contact-main-actions .btn-primary { background: #fff; color: var(--ink); }
.contact-main-actions .btn-outline { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.4); }
.department-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 24px; }
.department-card { display: flex; align-items: center; gap: 12px; background: #fff; border: 1px solid var(--line); border-radius: var(--r-sm); padding: 16px 18px; color: var(--ink); }
.department-card:hover { border-color: var(--brand); color: var(--ink); }
.department-icon { width: 38px; height: 38px; border-radius: var(--r-xs); background: var(--bg-subtle); color: var(--brand); display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.department-card h3 { font-size: 15px; margin: 0 0 2px; }
.department-card span:not(.department-icon) { font-size: 12px; color: var(--muted-2); }
.contact-note { margin-top: 24px; padding: 16px 18px; background: var(--bg-subtle); border-left: 2px solid var(--brand); font-size: 13px; color: var(--text-2); }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 32px; }
.stat-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-sm); padding: 20px; }
.stat-card strong { display: block; font-family: "Inter", sans-serif; font-size: 32px; font-weight: 600; color: var(--brand); line-height: 1.1; }
.stat-card span { font-size: 12px; color: var(--muted-2); }
.about-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 32px; align-items: start; }
.about-prose { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: 32px; }
.about-aside { display: flex; flex-direction: column; gap: 16px; }
.about-aside .aside-card > a { display: block; padding: 7px 0; font-size: 14px; border-bottom: 1px solid var(--line); }
.about-aside .aside-card > a:last-child { border-bottom: 0; }
.about-scenarios { margin-top: 44px; }
.about-cta { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; background: var(--ink); color: #fff; border-radius: var(--r-md); padding: 34px; margin-top: 44px; }
.about-cta h2 { color: #fff; font-size: 26px; margin-bottom: 4px; }
.about-cta p { color: var(--on-dark-2); margin: 0; }
.about-cta .btn-primary { background: #fff; color: var(--ink); }
.about-cta .btn-outline { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.4); }
.framework-figure { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: 20px; text-align: center; }
.framework-hint { display: none; font-size: 12px; color: var(--muted-2); text-align: center; margin: 0 0 10px; }
.framework-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.framework-scroll img { min-width: 900px; max-width: none; }
.org-chart { display: flex; flex-direction: column; align-items: center; padding: 28px 0 8px; }
.org-top { background: var(--ink); color: #fff; padding: 14px 30px; border-radius: var(--r-sm); font-weight: 600; font-size: 18px; }
.org-advisor { margin-top: 14px; border: 1px solid var(--line-strong); color: var(--brand); padding: 8px 16px; border-radius: var(--r-xs); font-size: 13.5px; }
.org-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-top: 36px; position: relative; width: 100%; max-width: 900px; }
.org-row::before { content: ""; position: absolute; top: -18px; left: 8%; right: 8%; height: 1px; background: var(--line-strong); }
.org-node { background: #fff; border: 1px solid var(--line); padding: 14px 22px; border-radius: var(--r-xs); font-size: 15px; font-weight: 500; color: var(--text); }
.org-note { text-align: center; font-size: 13px; color: var(--muted-2); margin-top: 28px; }

/* ---------- 搜索 / 留言 ---------- */
.search-form { display: flex; gap: 10px; max-width: 680px; margin-top: 18px; }
.search-form input { flex: 1; min-width: 0; padding: 13px 16px; border: 1px solid var(--line-strong); border-radius: var(--r-sm); font-size: 15px; background: #fff; color: var(--ink); }
.search-form input:focus { border-color: var(--brand); outline: none; box-shadow: 0 0 0 3px rgba(14, 90, 107, 0.12); }
.search-status { color: var(--muted); font-size: 14px; }
.search-results { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--line); }
.search-result { border-bottom: 1px solid var(--line); padding: 20px 0; }
.search-result h3 { font-size: 18px; margin-bottom: 4px; }
.search-result p { font-size: 13px; color: var(--muted); margin: 0 0 4px; }
.search-result .search-meta { font-size: 12px; color: var(--muted-2); }
.message-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 32px; align-items: start; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: 32px; }
.form-row { margin-bottom: 18px; }
.form-row label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 7px; }
.form-row label span { color: var(--danger); }
.form-row input, .form-row textarea { width: 100%; padding: 12px 14px; border: 1px solid var(--line-strong); border-radius: var(--r-sm); font-size: 15px; font-family: inherit; background: #fff; color: var(--ink); }
.form-row input:focus, .form-row textarea:focus { border-color: var(--brand); outline: none; box-shadow: 0 0 0 3px rgba(14, 90, 107, 0.1); }
.form-row--2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 6px; }
.form-note { font-size: 12px; color: var(--muted); max-width: 420px; }
.form-status { margin-top: 14px; font-size: 14px; }
.form-status.is-error { color: var(--danger); }
.form-status.is-ok { color: var(--success); }
.form-consent { margin: 14px 0 18px; font-size: 13px; color: var(--muted); line-height: 1.7; }
.form-consent label { display: flex; gap: 8px; align-items: flex-start; }
.form-consent input { margin-top: 4px; flex: 0 0 auto; }
.message-aside { display: flex; flex-direction: column; gap: 16px; }

/* ---------- 404 / 站点地图 ---------- */
.notfound { text-align: center; padding: 40px 0 60px; }
.notfound-code { font-family: "Inter", sans-serif; font-size: 96px; font-weight: 600; color: var(--line-strong); line-height: 1; display: block; }
.notfound h1 { margin-top: -8px; }
.notfound .search-form { margin: 20px auto; }
.notfound-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 20px; margin-top: 20px; font-weight: 600; }
.sitemap-section { margin-bottom: 40px; }
.sitemap-section h2 { font-size: 22px; margin-bottom: 6px; }
.sitemap-count { color: var(--muted); font-size: 13px; margin: 0 0 10px; }
.sitemap-section ul { margin: 0; padding-left: 20px; columns: 2; column-gap: 36px; }
.sitemap-section li { break-inside: avoid; margin: 6px 0; font-size: 14px; }
.sitemap-section a { color: var(--text); }
.sitemap-section a:hover { color: var(--brand); }

/* ---------- 旧卡片兼容 ---------- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 40px 32px; }
.card-grid--3 { grid-template-columns: repeat(3, 1fr); }
.card-grid--4 { grid-template-columns: repeat(4, 1fr); }
.card { display: flex; flex-direction: column; background: transparent; border: 0; border-radius: 0; overflow: visible; box-shadow: none; color: var(--ink); }
.card:hover { color: var(--ink); }
.card-media { aspect-ratio: 4 / 3; background: var(--bg-subtle); overflow: hidden; border-radius: var(--r-xs); }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.card--product .card-media { aspect-ratio: 4 / 3; background: #f1f3f2; }
.card--product .card-media img { object-fit: contain; padding: 6%; }
.card:hover .card-media img { transform: scale(1.02); }
.card-media--composite { position: relative; background: var(--bg-subtle); }
.card-media--composite .card-scene { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.card-media--composite::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8, 16, 20, 0) 30%, rgba(8, 16, 20, 0.3) 100%); }
.card-media--composite .card-ui {
  position: absolute; left: 13%; right: 13%; bottom: 8%; z-index: 1;
  border: 1px solid rgba(255, 255, 255, 0.55); border-radius: 3px; overflow: hidden;
  box-shadow: 0 14px 30px -14px rgba(8, 16, 20, 0.55); background: #fff;
}
.card-scene-label {
  position: absolute; left: 10px; top: 10px; z-index: 2;
  font-size: 10px; font-weight: 600; letter-spacing: 0.04em;
  color: #fff; background: rgba(8, 16, 20, 0.48); padding: 3px 8px; border-radius: 2px;
}
.card-media--composite .card-ui img { width: 100%; height: auto; display: block; object-fit: cover; padding: 0; transform: none; }
.card--product .card-media.card-media--composite { background: var(--bg-subtle); }
.card:hover .card-media--composite .card-scene { transform: scale(1.03); }
.card:hover .card-media--composite .card-ui img { transform: none; }
.card-body { padding: 14px 0 0; display: flex; flex-direction: column; flex: 1; }
.card-kicker { font-size: 10.5px; font-weight: 600; letter-spacing: 0.1em; color: var(--muted-2); margin-bottom: 6px; }
.card-body h3 { font-size: 17px; line-height: 1.45; margin-bottom: 6px; }
.card-body p { font-size: 13px; color: var(--muted); margin-bottom: 10px; flex: 1; line-height: 1.65; }
.card-body time { font-size: 11.5px; color: var(--muted-2); }
.card--text { border: 0; }
.article-list { border-top: 1px solid var(--line); }
.article-row { display: grid; grid-template-columns: 132px 1fr 24px; gap: 20px; align-items: center; padding: 20px 0; border-bottom: 1px solid var(--line); color: var(--ink); }
.article-row--text { grid-template-columns: 1fr 24px; }
.article-row:hover { color: var(--ink); }
.article-row-media { aspect-ratio: 4 / 3; border-radius: var(--r-xs); overflow: hidden; background: var(--bg-subtle); }
.article-row-media img { width: 100%; height: 100%; object-fit: cover; }
.article-row-meta { display: flex; flex-wrap: wrap; gap: 10px; font-size: 11.5px; color: var(--muted-2); margin-bottom: 5px; }
.article-row-body h3 { font-size: 18px; margin: 0 0 5px; }
.article-row-body p { font-size: 13.5px; color: var(--muted); margin: 0; line-height: 1.7; max-width: 720px; }
.article-row-arrow { color: var(--muted-2); }
.direction-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.direction-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-sm); padding: 22px; display: flex; flex-direction: column; gap: 6px; }
.direction-card:hover { border-color: var(--brand); }
.direction-icon { width: 38px; height: 38px; border-radius: var(--r-xs); background: var(--bg-subtle); color: var(--brand); display: inline-flex; align-items: center; justify-content: center; margin-bottom: 4px; }
.direction-card h3 { font-size: 17px; margin: 0; }
.direction-more { font-size: 12.5px; font-weight: 600; color: var(--brand); display: inline-flex; align-items: center; gap: 5px; margin-top: 4px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.feature { border-top: 1px solid var(--line); padding-top: 20px; }
.feature-icon { color: var(--brand); display: inline-flex; margin-bottom: 10px; }
.feature h3 { font-size: 18px; }
.feature p { color: var(--muted); font-size: 14px; margin: 0; }
.news-list { border-top: 1px solid var(--line); }
.news-row { display: grid; grid-template-columns: 110px 1fr 24px; gap: 20px; align-items: center; padding: 20px 0; border-bottom: 1px solid var(--line); color: var(--ink); }
.news-row:hover { color: var(--ink); }
.news-row time { font-size: 12px; color: var(--muted-2); }
.news-row h3 { font-size: 17px; margin: 0 0 4px; }
.news-row p { font-size: 13px; color: var(--muted); margin: 0; max-width: 720px; }
.news-row-arrow { color: var(--muted-2); }
.scenario-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.scenario-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-sm); padding: 22px; display: flex; flex-direction: column; gap: 6px; }
.scenario-card:hover { border-color: var(--brand); }
.scenario-icon { width: 38px; height: 38px; border-radius: var(--r-xs); background: var(--bg-subtle); color: var(--brand); display: inline-flex; align-items: center; justify-content: center; margin-bottom: 4px; }
.scenario-card h3 { font-size: 17px; margin: 0; }
.scenario-card p { font-size: 13px; color: var(--muted); margin: 0; flex: 1; }
.scenario-more { font-size: 12.5px; font-weight: 600; color: var(--brand); display: inline-flex; align-items: center; gap: 5px; margin-top: 4px; }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.process-step { border-top: 1px solid var(--line); padding-top: 20px; }
.process-num { display: inline-block; font-family: "Inter", sans-serif; font-size: 12px; font-weight: 600; color: var(--brand); letter-spacing: 0.08em; margin-bottom: 10px; }
.process-step h3 { font-size: 18px; margin-bottom: 6px; }
.process-step p { font-size: 13px; color: var(--muted); margin: 0; }
.empty-state { text-align: center; padding: 72px 20px; background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); }
.product-spec-chips { list-style: none; padding: 0; margin: 0 0 18px; display: flex; flex-wrap: wrap; gap: 10px; }
.product-spec-chips li { background: transparent; border: 0; border-left: 1px solid var(--line-strong); padding: 0 12px; font-size: 13px; color: var(--text); }
.product-spec-chips li:first-child { padding-left: 0; border-left: 0; }
.product-spec-chips li span { color: var(--muted-2); font-size: 11px; margin-right: 5px; }
.product-section-head { margin-bottom: 18px; }
.product-section-head h2 { font-size: 26px; margin: 0; }
.product-certs { margin: 32px 0; padding: 20px 24px; background: var(--bg-subtle); border-left: 2px solid var(--brand); }
.product-certs h2 { font-size: 18px; margin: 0 0 10px; }
.cert-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.cert-badges span { background: #fff; border: 1px solid var(--line); border-radius: var(--r-xs); padding: 5px 10px; font-size: 12.5px; color: var(--brand); }
.product-certs-note { font-size: 12px; color: var(--muted-2); margin: 10px 0 0; }
.product-scenarios { margin: 36px 0; }
.product-cta-panel { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; background: var(--ink); color: #fff; border-radius: var(--r-md); padding: 26px 28px; }
.product-cta-panel strong { font-size: 18px; }
.product-cta-panel p { margin: 4px 0 0; color: var(--on-dark-2); font-size: 13px; }
.product-cta-panel .btn-primary { background: #fff; color: var(--ink); }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 28px; }
.contact-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-sm); overflow: hidden; }
.contact-card-head { display: flex; align-items: center; gap: 12px; padding: 20px; background: var(--bg-subtle); color: var(--ink); }
.contact-card-head h3 { color: var(--ink); font-size: 17px; margin: 0; }
.contact-card-icon { width: 40px; height: 40px; border-radius: var(--r-xs); background: #fff; color: var(--brand); display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.contact-card-body { padding: 18px 20px 20px; }
.contact-card-body p { display: flex; gap: 8px; align-items: flex-start; font-size: 13px; color: var(--muted); margin-bottom: 7px; }
.contact-card-body p svg { flex: 0 0 auto; margin-top: 3px; color: var(--brand); }
.contact-map-card { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; background: var(--ink); color: #fff; border-radius: var(--r-md); padding: 28px 32px; }
.contact-map-card h2 { color: #fff; font-size: 22px; margin-bottom: 6px; }
.contact-map-card p { margin: 0 0 4px; color: var(--on-dark-2); }
.contact-map-card a { color: #fff; text-decoration: underline; }
.contact-map-card .btn-primary { background: #fff; color: var(--ink); }
.cloud-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 20px; margin-bottom: 30px; }
.cloud-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-sm); padding: 24px; display: flex; flex-direction: column; gap: 8px; }
.cloud-icon { width: 40px; height: 40px; border-radius: var(--r-xs); background: var(--bg-subtle); color: var(--brand); display: inline-flex; align-items: center; justify-content: center; }
.cloud-card h3 { font-size: 17px; margin: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-points { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 14px 22px; }
.hero-points li { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; color: var(--muted); }
.hero-points svg { color: var(--brand); }

/* ---------- 移动端底栏 ---------- */
.mobile-cta { display: none; }
.message-page .mobile-cta, .notfound-page .mobile-cta { display: none !important; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1180px) {
  .header-phone { display: none; }
  .hero-grid { gap: 36px; }
  .hero-chip--a { left: -8px; }
  .platform-grid, .scene-grid { gap: 44px; }
}
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; padding-top: 72px; padding-bottom: 64px; }
  .hero-media { max-width: 820px; }
  .hero-chip--b { right: 12px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 24px 0; }
  .hero-stat:nth-child(3) { padding-left: 0; border-left: 0; }
  .platform-grid, .software-feature, .scene-grid, .dual-grid { grid-template-columns: 1fr; gap: 36px; }
  .platform-copy h2, .platform-copy p, .scene-copy h2, .scene-copy p { max-width: 720px; }
  .scene-panel { grid-template-columns: 0.8fr 1.2fr; }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-qr { display: none; }
  .article-layout { grid-template-columns: 1fr; gap: 0; padding-top: 40px; }
  .article-toc { display: none; }
  .toc-inline { display: block; }
  .product-hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .product-media { max-width: 720px; }
  .about-layout { grid-template-columns: 1fr; }
  .about-aside { display: grid; grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .site-header { backdrop-filter: none; -webkit-backdrop-filter: none; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; margin-left: auto; }
  .main-nav {
    position: fixed; inset: 64px 0 0; background: #fff; display: none; flex-direction: column;
    align-items: stretch; padding: 16px 24px 40px; overflow-y: auto; margin: 0; gap: 0;
  }
  .main-nav.is-open { display: flex; }
  .nav-item { flex-direction: column; align-items: stretch; border-bottom: 1px solid var(--line); }
  .nav-link { padding: 16px 4px; font-size: 17px; border-bottom: 0; }
  .nav-caret { position: absolute; right: 0; top: 8px; width: 44px; height: 44px; }
  .nav-dropdown { position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none; border: 0; padding: 0 0 12px 14px; display: none; min-width: 0; }
  .nav-item.is-open .nav-dropdown { display: block; }
  .header-actions { margin-left: 0; }
  .header-cta { display: none; }
  .post-grid { grid-template-columns: repeat(2, 1fr); gap: 36px 24px; }
  .featured-article { grid-template-columns: 1fr; gap: 20px; }
  .featured-article-body h2 { font-size: 26px; }
  .department-grid, .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .about-aside { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .card-grid--4, .direction-grid, .feature-grid, .scenario-grid, .process-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .page-hero--compact, .listing-hero { padding: 40px 0 34px; }
  .product-nav { top: 64px; overflow-x: auto; }
  .product-nav-inner { gap: 24px; white-space: nowrap; }
  .cta-band { padding: 56px 0; }
  .mobile-cta {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 120;
    background: #fff; border-top: 1px solid var(--line); padding: 8px 12px calc(8px + env(safe-area-inset-bottom)); gap: 10px;
  }
  body { padding-bottom: 64px; }
  .message-page, .notfound-page { padding-bottom: 0 !important; }
  .message-page .mobile-cta, .notfound-page .mobile-cta { display: none !important; }
  .mobile-cta-btn { flex: 1; display: flex; align-items: center; justify-content: center; gap: 7px; min-height: 44px; border-radius: var(--r-sm); font-weight: 600; font-size: 14px; }
  .mobile-cta-call { background: var(--bg-subtle); color: var(--brand); }
  .mobile-cta-message { background: var(--brand); color: #fff; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .breadcrumbs > span[aria-hidden="true"] { display: none; }
  .breadcrumbs > span:last-child:not([aria-hidden="true"]) { display: none; }
  .breadcrumbs { gap: 4px 10px; }
  .nowrap-mobile { white-space: nowrap; font-size: 26px !important; }
  .container { padding: 0 20px; }
  h1 { font-size: 34px; }
  h2 { font-size: 28px; }
  .section { padding: 64px 0; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 10px; margin-bottom: 32px; }
  .hero-grid { padding-top: 56px; padding-bottom: 48px; }
  .hero-copy h1 { font-size: 38px; }
  .hero-lead { font-size: 16px; }
  .hero-media { display: none; }
  .hero-stats { padding-top: 20px; padding-bottom: 24px; }
  .hero-stat { padding: 0 18px; }
  .hero-stat strong { font-size: 30px; }
  .audience-label { margin-right: 14px; }
  .audience-inner > span:not(.audience-label):not(.audience-since) { padding: 0 10px; }
  .audience-since { display: none; }
  .post-grid { grid-template-columns: 1fr; gap: 32px; }
  .index-grid { grid-template-columns: 1fr; }
  .ui-notes { grid-template-columns: 1fr; gap: 20px; }
  .stat-row { grid-template-columns: repeat(2, 1fr); gap: 0; }
  .stat-item { padding: 24px 18px 0; }
  .stat-item:nth-child(3) { padding-left: 0; border-left: 0; }
  .scene-panel { grid-template-columns: 1fr; }
  .scene-images { min-height: 280px; }
  .hardware-band { height: 380px; }
  .hardware-band-copy { bottom: 40px; }
  .hardware-strip { padding-top: 16px; padding-bottom: 16px; }
  .hardware-strip span { padding: 0 12px; font-size: 12.5px; }
  .dual-grid { gap: 48px; }
  .text-row { grid-template-columns: 1fr 20px; }
  .text-row-tag { grid-column: 1 / -1; padding-top: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
  .footer-brand { grid-column: 1 / -1; }
  .card-grid--4, .direction-grid, .feature-grid, .scenario-grid, .process-grid, .card-grid--3, .contact-grid { grid-template-columns: 1fr; }
  .article-hero { padding: 34px 0 30px; }
  .article-head h1 { font-size: 30px; }
  .article-dek { font-size: 16.5px; }
  .article-layout { padding: 32px 0 64px; }
  .article-body.prose { font-size: 16.5px; line-height: 1.85; }
  .prose h2 { font-size: 23px; margin-top: 44px; }
  .prose h3 { font-size: 19px; }
  .prose blockquote { font-size: 18px; }
  .key-points { padding: 20px 20px; margin-bottom: 32px; }
  .article-cta, .product-cta { padding: 24px; }
  .author-box { flex-direction: column; }
  .product-hero { padding: 32px 0 40px; }
  .product-copy h1 { font-size: 30px; }
  .product-summary { font-size: 16px; }
  .product-meta span { padding: 0 10px; }
  .product-body { padding: 40px 0 64px; }
  .product-section h2 { font-size: 23px; }
  .product-nav-inner { gap: 20px; }
  .contact-main { padding: 26px; }
  .contact-main-copy h2 { font-size: 24px; }
  .contact-main-actions { flex-direction: row; width: 100%; }
  .contact-main-actions .btn { flex: 1; }
  .department-grid { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .about-prose { padding: 24px 20px; }
  .about-cta { padding: 24px; }
  .page-body > .prose { padding: 24px 20px; }
  .form-row--2 { grid-template-columns: 1fr; }
  .message-layout { grid-template-columns: 1fr; }
  .framework-hint { display: block; }
  .table-hint { display: block; }
  .pagination a { min-width: 44px; height: 44px; display: inline-flex; align-items: center; justify-content: center; }
  .copy-link { min-height: 44px; }
  .filter-link { min-height: 44px; display: inline-flex; align-items: center; }
  .banner { min-height: 320px; }
}
@media (max-width: 380px) {
  .container { padding: 0 16px; }
  .hero-copy h1 { font-size: 33px; }
  .brand-word { font-size: 21px; }
  .brand-mark { width: 29px; }
}

@media print {
  .site-header, .site-footer, .article-aside, .article-toc, .related, .cta-band, .mobile-cta { display: none !important; }
  .article-main { padding: 0; }
}