@charset "UTF-8";
/* ==========================================================================
   翌日云教育科技 · 官网样式表
   设计语言：克制工程风（Linear / Vercel / Arc）
   —— 大留白、细分割线、灰阶为主、单一品牌色点缀
   零外部依赖，无 CDN、无框架。
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计令牌
   -------------------------------------------------------------------------- */
:root {
  /* 中性色阶（注入冷青色调，避免死灰） */
  --bg: #ffffff;
  --bg-subtle: #f5f9fa;
  --bg-muted: #edf4f6;
  --bg-inset: #f2f7f9;

  --border: #e2ecef;
  --border-soft: #ecf2f4;
  --border-strong: #cddde3;

  --text: #0b0f14;
  --text-2: #525a66;
  --text-3: #868e9a;
  --text-4: #a8afb8;

  /* 品牌色（取自 logo 青蓝） */
  --brand: #0e8aa8;
  --brand-strong: #0a7288;
  --brand-ink: #075c6e;
  --brand-soft: #edf7fa;
  --brand-soft-2: #dceff5;

  /* 点缀色（取自 logo 太阳暖橙），克制使用 */
  --accent: #cf9316;
  --accent-soft: #fdf6e6;

  /* 深色区 */
  --dark: #0b0f14;
  --dark-2: #12181f;
  --dark-border: rgba(255, 255, 255, 0.1);
  --dark-text: #edeff2;
  --dark-text-2: #98a2ae;

  /* 圆角 */
  --r-xs: 4px;
  --r-s: 6px;
  --r-m: 10px;
  --r-l: 14px;
  --r-xl: 20px;

  /* 阴影（克制，靠边框而非阴影分层） */
  --sh-xs: 0 1px 2px rgba(11, 15, 20, 0.04);
  --sh-s: 0 1px 3px rgba(11, 15, 20, 0.05), 0 1px 2px rgba(11, 15, 20, 0.03);
  --sh-m: 0 6px 20px -6px rgba(11, 15, 20, 0.1);
  --sh-l: 0 28px 60px -24px rgba(11, 15, 20, 0.2);
  --sh-xl: 0 40px 90px -30px rgba(11, 15, 20, 0.26);

  /* 布局 */
  --container: 1160px;
  --container-narrow: 820px;
  --header-h: 64px;

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
    "Noto Sans CJK SC", "WenQuanYi Micro Hei", Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;

  /* 动效 */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* --------------------------------------------------------------------------
   2. 基础重置
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 24px);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "kern" 1;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text);
}

p {
  margin: 0;
}

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

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

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

table {
  border-collapse: collapse;
  width: 100%;
}

::selection {
  background: var(--brand-soft-2);
  color: var(--brand-ink);
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: var(--r-xs);
}

/* --------------------------------------------------------------------------
   3. 布局工具
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section {
  padding: 104px 0;
}

.section-sm {
  padding: 72px 0;
}

.section-lg {
  padding: 128px 0;
}

.bg-subtle {
  background: var(--bg-subtle);
}

.bg-muted {
  background: var(--bg-muted);
}

.hairline-top {
  border-top: 1px solid var(--border);
}

.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;
}

/* --------------------------------------------------------------------------
   4. 排版
   -------------------------------------------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 18px;
}

.eyebrow::before {
  content: "";
  width: 16px;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
}

.h1 {
  font-size: clamp(36px, 5.2vw, 60px);
  font-weight: 660;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.h2 {
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 640;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.h3 {
  font-size: 20px;
  font-weight: 620;
  letter-spacing: -0.015em;
}

.h4 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.lead {
  font-size: 17.5px;
  line-height: 1.75;
  color: var(--text-2);
}

.muted {
  color: var(--text-3);
}

.text-brand {
  color: var(--brand);
}

.section-head {
  max-width: 680px;
  margin-bottom: 56px;
}

/* 长标题（>15 字）：放宽文本栏，避免在 42px 字号下被挤成「尾行 1 字」的孤行 */
.section-head.head-wide {
  max-width: 760px;
}

.section-head.head-wide .lead {
  max-width: 680px;
}

/* 响应式断行：只在窄屏生效的 <br>（宽屏单行时 display:none 即取消这次换行）
   阈值由「标题单行所需像素宽度 ÷ 容器可用宽度」实测得出（1440 无头实测），改文案需重测 */
.br-sm {
  display: none;
}

.br-xs {
  display: none;
}

@media (max-width: 504px) {
  .br-sm {
    display: inline;
  }
}

@media (max-width: 400px) {
  .br-xs {
    display: inline;
  }
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head .lead {
  margin-top: 18px;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

/* --------------------------------------------------------------------------
   5. 按钮
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  font-size: 15px;
  font-weight: 550;
  letter-spacing: -0.01em;
  border-radius: var(--r-s);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease),
    color 0.18s var(--ease), transform 0.18s var(--ease),
    box-shadow 0.18s var(--ease);
}

.btn svg {
  flex-shrink: 0;
}

.btn-primary {
  background: linear-gradient(135deg, #109ab9 0%, var(--brand-strong) 100%);
  color: #fff;
  box-shadow: 0 6px 18px -6px rgba(14, 138, 168, 0.5);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #16a6c6 0%, #0a7d94 100%);
  transform: translateY(-1px);
  box-shadow: 0 10px 24px -8px rgba(14, 138, 168, 0.55);
}

.btn-brand {
  background: var(--brand);
  color: #fff;
  box-shadow: var(--sh-xs);
}

.btn-brand:hover {
  background: var(--brand-strong);
  transform: translateY(-1px);
  box-shadow: var(--sh-m);
}

.btn-ghost {
  background: #fff;
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-ghost:hover {
  border-color: var(--text-3);
  background: var(--bg-subtle);
}

.btn-quiet {
  background: transparent;
  color: var(--text-2);
}

.btn-quiet:hover {
  color: var(--text);
  background: var(--bg-muted);
}

.btn-sm {
  height: 34px;
  padding: 0 14px;
  font-size: 13.5px;
}

.btn-lg {
  height: 50px;
  padding: 0 26px;
  font-size: 16px;
}

.btn-block {
  width: 100%;
}

.btn-on-dark {
  background: #fff;
  color: var(--dark);
}

.btn-on-dark:hover {
  background: #e9edf1;
  transform: translateY(-1px);
}

.btn-outline-dark {
  background: transparent;
  color: var(--dark-text);
  border-color: rgba(255, 255, 255, 0.22);
}

.btn-outline-dark:hover {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.06);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 文字箭头链接 */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14.5px;
  font-weight: 550;
  color: var(--brand);
  transition: gap 0.2s var(--ease), color 0.2s var(--ease);
}

.link-arrow:hover {
  gap: 10px;
  color: var(--brand-strong);
}

/* --------------------------------------------------------------------------
   6. 头部导航
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: var(--header-h);
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-mark {
  width: 38px;
  height: 38px;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  font-size: 17px;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--text);
}

.brand-sub {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--text-3);
  text-transform: uppercase;
}

/* 主导航 */
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav a {
  position: relative;
  padding: 8px 12px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--r-s);
  transition: color 0.16s var(--ease), background-color 0.16s var(--ease);
}

.nav a:hover {
  color: var(--text);
  background: var(--bg-muted);
}

.nav a.is-active {
  color: var(--text);
  font-weight: 600;
}

.nav a.is-active::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -1px;
  height: 2px;
  border-radius: 1px;
  background: var(--brand);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  padding-left: 20px;
  margin-left: 8px;
  border-left: 1px solid var(--border);
}

/* 移动端菜单按钮 */
.nav-toggle {
  display: none;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-s);
  color: var(--text-2);
  margin-left: auto;
}

.nav-toggle:hover {
  background: var(--bg-muted);
  color: var(--text);
}

.nav-toggle .icon-close {
  display: none;
}

.nav-toggle[aria-expanded="true"] .icon-menu {
  display: none;
}

.nav-toggle[aria-expanded="true"] .icon-close {
  display: block;
}

/* 移动端抽屉 */
.mobile-nav {
  display: none;
  position: fixed;
  inset: var(--header-h) 0 auto 0;
  z-index: 99;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--sh-m);
  padding: 12px 24px 24px;
  max-height: calc(100vh - var(--header-h));
  overflow-y: auto;
}

.mobile-nav.is-open {
  display: block;
}

.mobile-nav a {
  display: block;
  padding: 14px 4px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-2);
  border-bottom: 1px solid var(--border-soft);
}

.mobile-nav a.is-active {
  color: var(--brand);
  font-weight: 600;
}

.mobile-nav .btn {
  margin-top: 20px;
}

/* --------------------------------------------------------------------------
   7. 首页 Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding: 104px 0 0;
  overflow: hidden;
  background: var(--bg);
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

/* 细网格 */
.hero-bg::before {
  content: "";
  position: absolute;
  inset: -1px;
  background-image: linear-gradient(to right, rgba(11, 15, 20, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(11, 15, 20, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 0%, transparent 78%);
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 0%, transparent 78%);
}

/* 品牌色光晕（双光：青蓝主光 + 暖橙点缀光） */
.hero-bg::after {
  content: "";
  position: absolute;
  top: -280px;
  left: 50%;
  transform: translateX(-50%);
  width: 1100px;
  height: 620px;
  background: radial-gradient(
    ellipse at center,
    rgba(14, 138, 168, 0.2) 0%,
    rgba(14, 138, 168, 0.07) 42%,
    transparent 70%
  );
}

.hero-bg .glow-amber {
  position: absolute;
  top: -180px;
  right: -160px;
  width: 560px;
  height: 420px;
  background: radial-gradient(
    ellipse at center,
    rgba(216, 168, 36, 0.14) 0%,
    transparent 68%
  );
}

.hero-bg .glow-teal-2 {
  position: absolute;
  bottom: -260px;
  left: -200px;
  width: 640px;
  height: 480px;
  background: radial-gradient(
    ellipse at center,
    rgba(27, 166, 196, 0.12) 0%,
    transparent 70%
  );
}

.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 880px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: 32px;
  padding: 0 14px 0 11px;
  margin-bottom: 28px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: var(--sh-xs);
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-soft);
}

.hero h1 {
  margin-bottom: 24px;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, #0f96b4 10%, var(--brand-strong) 55%, #075c6e 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero .lead {
  max-width: 730px;
  margin: 0 auto;
  font-size: 17.5px;
  line-height: 1.78;
}

.hero-cta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.hero-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-3);
}

/* 能力条 */
.hero-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 72px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-m);
  overflow: hidden;
}

.hero-stats li {
  background: #fff;
  padding: 24px 20px;
  text-align: center;
}

.hero-stats .stat-value {
  font-size: 26px;
  font-weight: 650;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1.1;
}

.hero-stats .stat-value span {
  font-size: 15px;
  font-weight: 550;
  color: var(--text-3);
  margin-left: 2px;
  letter-spacing: 0;
}

.hero-stats .stat-label {
  margin-top: 7px;
  font-size: 13.5px;
  color: var(--text-3);
}

/* 产品预览图（纯 CSS 构建的界面模型） */
.hero-preview {
  position: relative;
  z-index: 1;
  margin-top: 64px;
  padding-bottom: 0;
}

.preview-frame {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--border);
  border-bottom: 0;
  border-radius: var(--r-l) var(--r-l) 0 0;
  box-shadow: var(--sh-xl);
  overflow: hidden;
}

.preview-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 42px;
  padding: 0 16px;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border);
}

.preview-dots {
  display: flex;
  gap: 6px;
}

.preview-dots i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #e2e5e9;
}

.preview-url {
  flex: 1;
  max-width: 320px;
  margin: 0 auto;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 11.5px;
  color: var(--text-3);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
}

.preview-body {
  display: grid;
  grid-template-columns: 196px 1fr;
  min-height: 380px;
  text-align: left;
}

/* 侧栏 */
.pv-side {
  border-right: 1px solid var(--border-soft);
  background: var(--bg-subtle);
  padding: 18px 12px;
}

.pv-side-title {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-4);
  padding: 0 8px 10px;
}

.pv-nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 9px;
  border-radius: var(--r-xs);
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 2px;
}

.pv-nav-item svg {
  width: 15px;
  height: 15px;
  opacity: 0.65;
  flex-shrink: 0;
}

.pv-nav-item.is-on {
  background: #fff;
  color: var(--brand-ink);
  font-weight: 600;
  box-shadow: var(--sh-xs);
}

.pv-nav-item.is-on svg {
  opacity: 1;
  color: var(--brand);
}

/* 主区 */
.pv-main {
  padding: 22px 24px;
}

.pv-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.pv-title {
  font-size: 16px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.pv-sub {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 3px;
}

.pv-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 24px;
  padding: 0 9px;
  font-size: 11.5px;
  font-weight: 550;
  color: var(--brand-ink);
  background: var(--brand-soft);
  border-radius: 999px;
}

.pv-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 14px;
}

.pv-card {
  padding: 13px 14px;
  border: 1px solid var(--border);
  border-radius: var(--r-s);
  background: #fff;
}

.pv-card .k {
  font-size: 11.5px;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 5px;
}

.pv-card .v {
  font-size: 21px;
  font-weight: 650;
  letter-spacing: -0.03em;
  margin-top: 6px;
  line-height: 1.1;
}

.pv-card .v small {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-4);
  margin-left: 3px;
  letter-spacing: 0;
}

.pv-card .trend {
  margin-top: 7px;
  font-size: 11px;
  color: var(--brand);
  font-weight: 550;
}

/* 柱状图 */
.pv-panel {
  border: 1px solid var(--border);
  border-radius: var(--r-s);
  padding: 15px 16px 14px;
  background: #fff;
}

.pv-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.pv-panel-head .t {
  font-size: 12.5px;
  font-weight: 600;
}

.pv-legend {
  display: flex;
  gap: 12px;
  font-size: 11px;
  color: var(--text-3);
}

.pv-legend i {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  margin-right: 5px;
}

.pv-bars {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  height: 112px;
  padding: 0 4px;
}

.pv-bars > div {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 3px;
  height: 100%;
}

.pv-bars b {
  display: block;
  border-radius: 3px 3px 1px 1px;
  background: var(--brand);
  opacity: 0.9;
}

.pv-bars s {
  display: block;
  border-radius: 0 0 1px 1px;
  background: var(--brand-soft-2);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   8. 卡片与网格
   -------------------------------------------------------------------------- */
.grid {
  display: grid;
  gap: 20px;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* 通用卡片 */
.card {
  display: flex;
  flex-direction: column;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease),
    transform 0.22s var(--ease);
}

.card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--sh-m);
  transform: translateY(-2px);
}

.card-flat:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--border-strong);
}

/* 图标 */
.icon-tile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--r-m);
  background: var(--brand-soft);
  color: var(--brand-strong);
  margin-bottom: 18px;
  flex-shrink: 0;
}

.icon-tile svg {
  width: 21px;
  height: 21px;
}

.icon-tile.tile-muted {
  background: var(--bg-muted);
  color: var(--text-2);
}

.icon-tile.tile-soft {
  background: var(--accent-soft);
  color: var(--accent);
}

/* 产品卡片（首页） */
.product-card {
  position: relative;
  padding: 30px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  display: flex;
  flex-direction: column;
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease),
    transform 0.22s var(--ease);
}

.product-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--sh-m);
  transform: translateY(-2px);
}

.product-card .p-index {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-4);
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

.product-card h3 {
  font-size: 21px;
  font-weight: 640;
  letter-spacing: -0.025em;
  margin-bottom: 6px;
}

.product-card .p-tag {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 550;
  color: var(--brand);
  margin-bottom: 14px;
}

.product-card p {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text-2);
}

.feature-list {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--border-soft);
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 11px 0;
  font-size: 14px;
  color: var(--text-2);
  border-bottom: 1px solid var(--border-soft);
}

.feature-list li svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  margin-top: 4px;
  color: var(--brand);
}

.product-card .p-foot {
  margin-top: 22px;
  padding-top: 0;
}

.product-card .feature-list + .p-foot {
  margin-top: auto;
}

/* 能力网格（轻卡片，与场景卡同语言） */
.cap-item {
  padding: 26px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-l);
}

.cap-item .c-ico {
  color: var(--brand);
  margin-bottom: 14px;
}

.cap-item .c-ico svg {
  width: 22px;
  height: 22px;
}

.cap-item h4 {
  font-size: 16px;
  margin-bottom: 8px;
}

.cap-item p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
}

/* 场景卡 */
.scene-card {
  padding: 26px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-l);
}

.scene-card .s-top {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.scene-card h4 {
  font-size: 17px;
}

.scene-card p {
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-2);
}

.scene-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 18px;
}

.tag {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 9px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-2);
  background: var(--bg-muted);
  border-radius: var(--r-xs);
}

.tag-brand {
  color: var(--brand-ink);
  background: var(--brand-soft);
}

/* --------------------------------------------------------------------------
   9. 深色 CTA 与页脚
   -------------------------------------------------------------------------- */
.cta-band {
  position: relative;
  background: linear-gradient(150deg, #05242e 0%, #0a3542 55%, #0d4a5a 100%);
  color: var(--dark-text);
  padding: 88px 0;
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  top: -160px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 420px;
  background: radial-gradient(
    ellipse at center,
    rgba(14, 138, 168, 0.32) 0%,
    transparent 68%
  );
}

.cta-band .container {
  position: relative;
  z-index: 1;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta-band h2 {
  color: #fff;
  font-size: clamp(26px, 3.2vw, 36px);
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.cta-band p {
  color: var(--dark-text-2);
  font-size: 15.5px;
  max-width: 520px;
}

.cta-band .btn-group {
  flex-shrink: 0;
}

/* 页脚 */
.site-footer {
  background: linear-gradient(180deg, #0a1a20 0%, #0b0f14 46%);
  color: var(--dark-text-2);
  border-top: 1px solid rgba(27, 166, 196, 0.18);
  padding: 64px 0 0;
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 48px;
  padding-bottom: 52px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 16px;
}

.footer-brand .logo-tile {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: #fff;
  border-radius: var(--r-s);
  flex-shrink: 0;
}

.footer-brand .logo-tile img {
  width: 25px;
  height: 25px;
  object-fit: contain;
}

.footer-brand .b-name {
  font-size: 15px;
  font-weight: 650;
  color: #fff;
  letter-spacing: -0.015em;
}

.footer-brand .b-sub {
  font-size: 11.5px;
  color: var(--dark-text-2);
  margin-top: 2px;
}

.footer-desc {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--dark-text-2);
  max-width: 300px;
}

.footer-col h3 {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 18px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.footer-col a {
  font-size: 13.5px;
  color: var(--dark-text-2);
  transition: color 0.16s var(--ease);
}

.footer-col a:hover {
  color: #fff;
}

.footer-contact li {
  display: flex;
  gap: 10px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--dark-text-2);
}

.footer-contact svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  margin-top: 3px;
  opacity: 0.6;
}

.footer-contact a:hover {
  color: #fff;
}

.footer-qr {
  margin-top: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-qr img {
  width: 76px;
  height: 76px;
  border-radius: var(--r-s);
  background: #fff;
  padding: 4px;
  object-fit: contain;
}

.footer-qr .q-t {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--dark-text-2);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: 20px 0 26px;
  border-top: 1px solid var(--dark-border);
  font-size: 12.5px;
  color: #6f7885;
}

.footer-bottom a {
  color: #6f7885;
}

.footer-bottom a:hover {
  color: var(--dark-text);
}

.footer-legal {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   10. 页面头（内页）
   -------------------------------------------------------------------------- */
.page-hero {
  position: relative;
  padding: 72px 0 64px;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: -1px;
  background-image: linear-gradient(to right, rgba(11, 15, 20, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(11, 15, 20, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 70% 100% at 12% 0%, #000, transparent 72%);
  mask-image: radial-gradient(ellipse 70% 100% at 12% 0%, #000, transparent 72%);
  pointer-events: none;
}

/* 方案 B：网格纸 + 双色光晕（左青右暖橙，呼应首页 hero） */
.page-hero::after {
  content: "";
  position: absolute;
  inset: -1px;
  background:
    radial-gradient(520px 300px at 10% 0%, rgba(14, 138, 168, 0.13), transparent 70%),
    radial-gradient(420px 240px at 92% 0%, rgba(207, 147, 22, 0.09), transparent 70%);
  pointer-events: none;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  font-size: clamp(32px, 4.2vw, 46px);
  font-weight: 650;
  letter-spacing: -0.032em;
  margin-bottom: 18px;
  max-width: 760px;
}

.page-hero .lead {
  max-width: 640px;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 26px;
}

.breadcrumb a:hover {
  color: var(--brand);
}

.breadcrumb svg {
  width: 13px;
  height: 13px;
  opacity: 0.5;
}

.breadcrumb .sep {
  color: var(--text-4);
}

/* --------------------------------------------------------------------------
   11. 产品中心页
   -------------------------------------------------------------------------- */
.product-block {
  padding: 80px 0;
  border-bottom: 1px solid var(--border);
}

.product-block:last-of-type {
  border-bottom: 0;
}

/* 产品大块白 / 浅青交替（中间块上淡青底，全宽色带） */
.product-block.pb-alt {
  background: var(--brand-soft);
}

.pb-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: stretch;
}

.pb-grid.reverse .pb-media {
  order: -1;
}

.pb-index {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-4);
  margin-bottom: 16px;
}

.pb-index::after {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--border-strong);
}

.product-block h2 {
  font-size: clamp(26px, 3.2vw, 34px);
  letter-spacing: -0.028em;
  margin-bottom: 14px;
}

/* 标题下细渐变分隔线（青蓝 → 暖橙点缀 → 透明） */
.product-block h2::after {
  content: "";
  display: block;
  width: 76px;
  height: 2px;
  margin-top: 14px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--brand) 0%, #1ba6c4 45%, var(--accent) 100%);
}

.pb-tagline {
  font-size: 15px;
  font-weight: 550;
  color: var(--brand);
  margin-bottom: 18px;
}

.product-block .pb-desc {
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--text-2);
  margin-bottom: 26px;
}

.pb-caps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 26px;
}

.pb-caps li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 13px 0;
  font-size: 14px;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text-2);
}

.pb-caps li svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  margin-top: 4px;
  color: var(--brand);
}

.pb-caps li b {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 3px;
}

.pb-caps li span {
  font-size: 13.5px;
  line-height: 1.6;
}

/* 产品页视觉块 */
.pb-media {
  position: sticky;
  top: calc(var(--header-h) + 32px);
}

.media-panel {
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  background: var(--bg-subtle);
  padding: 26px;
  box-shadow: var(--sh-s);
}

.media-panel .mp-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.media-panel .mp-title {
  font-size: 13.5px;
  font-weight: 600;
}

.media-panel .mp-sub {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 2px;
}

.mp-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mp-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 15px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-s);
}

.mp-row .r-ico {
  width: 32px;
  height: 32px;
  border-radius: var(--r-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--brand-soft);
  color: var(--brand-strong);
  flex-shrink: 0;
}

.mp-row .r-ico svg {
  width: 16px;
  height: 16px;
}

.mp-row .r-t {
  font-size: 13.5px;
  font-weight: 550;
}

.mp-row .r-d {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 1px;
}

.mp-row .r-v {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-4);
  flex-shrink: 0;
}

/* 对话气泡（AI 导师） */
.chat-mock {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  box-shadow: var(--sh-xs);
}

.chat-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.chat-row.right {
  flex-direction: row-reverse;
}

.chat-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
}

.chat-avatar.ai {
  background: var(--brand-soft);
  color: var(--brand-strong);
}

.chat-avatar.me {
  background: var(--bg-muted);
  color: var(--text-3);
}

.chat-bubble {
  max-width: 82%;
  padding: 11px 14px;
  font-size: 13.5px;
  line-height: 1.65;
  border-radius: var(--r-m);
}

.chat-bubble.ai {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  color: var(--text-2);
}

.chat-bubble.me {
  background: var(--brand);
  color: #fff;
}

.chat-bubble strong {
  color: var(--text);
  font-weight: 600;
}

.chat-bubble.me strong {
  color: #fff;
}

.chat-steps {
  margin-top: 9px;
  padding-top: 9px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.chat-steps span {
  font-size: 12.5px;
  color: var(--text-3);
  display: flex;
  gap: 7px;
}

.chat-steps span b {
  color: var(--brand);
  font-family: var(--font-mono);
  font-weight: 600;
}

/* 数字人卡片 */
.avatar-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.avatar-card {
  padding: 18px 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-m);
  text-align: center;
}

.avatar-face {
  width: 54px;
  height: 54px;
  margin: 0 auto 12px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(150deg, var(--brand-soft-2), var(--brand-soft));
  border: 1px solid var(--border);
  color: var(--brand-strong);
}

.avatar-face svg {
  width: 24px;
  height: 24px;
}

.avatar-card .a-role {
  font-size: 13.5px;
  font-weight: 600;
  margin-bottom: 4px;
}

.avatar-card .a-desc {
  font-size: 11.5px;
  line-height: 1.55;
  color: var(--text-3);
}

/* 对比表 */
.table-wrap {
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  overflow: hidden;
  background: #fff;
}

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table.compare {
  min-width: 720px;
  font-size: 14px;
}

table.compare th,
table.compare td {
  padding: 15px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border-soft);
  vertical-align: top;
}

table.compare thead th {
  background: #e6f2f5;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #14586c;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

table.compare tbody tr:last-child td {
  border-bottom: 0;
}

table.compare td:first-child {
  font-weight: 550;
  color: var(--text);
  white-space: nowrap;
}

table.compare td {
  color: var(--text-2);
}

table.compare .yes {
  color: var(--brand);
  font-weight: 600;
}

table.compare .no {
  color: var(--text-4);
}

/* --------------------------------------------------------------------------
   12. 公司动态页
   -------------------------------------------------------------------------- */
.news-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 56px;
  align-items: start;
}

.news-feature {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  overflow: hidden;
  background: #fff;
  margin-bottom: 44px;
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.news-feature:hover {
  border-color: var(--border-strong);
  box-shadow: var(--sh-m);
}

.news-feature .nf-media {
  position: relative;
  min-height: 280px;
  background: linear-gradient(145deg, var(--brand-ink), var(--brand) 55%, #1ba6c4);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.news-feature .nf-media::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.09) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, #000, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, #000, transparent 75%);
}

.news-feature .nf-media svg {
  position: absolute;
  top: 16px;
  right: 18px;
  width: 30px;
  height: 30px;
  color: rgba(255, 255, 255, 0.38);
  stroke-width: 1.1;
}

/* 封面内的迷你产品界面小样（纯 CSS，无图片资产） */
.nf-app {
  position: relative;
  width: min(76%, 380px);
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 22px 44px -20px rgba(4, 42, 52, 0.5);
}

.nf-app-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: #f4f6f7;
  border-bottom: 1px solid var(--border);
}

.nf-dots {
  display: inline-flex;
  gap: 5px;
}

.nf-dots i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-strong);
}

.nf-app-title {
  font-size: 11.5px;
  font-weight: 500;
  color: var(--text-2);
}

.nf-ver {
  margin-left: auto;
  font-size: 10.5px;
  font-weight: 500;
  color: var(--brand-ink);
  background: var(--brand-soft-2);
  padding: 2px 8px;
  border-radius: 999px;
}

.nf-app-body {
  display: flex;
}

.nf-side {
  width: 86px;
  flex-shrink: 0;
  border-right: 1px solid var(--border-soft);
  padding: 10px 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nf-side span {
  font-size: 10.5px;
  color: var(--text-3);
  padding: 5px 9px;
  border-radius: 6px;
}

.nf-side span.on {
  background: var(--brand-soft);
  color: var(--brand-ink);
  font-weight: 500;
}

.nf-main {
  flex: 1;
  padding: 12px 14px 14px;
  min-width: 0;
}

.nf-line {
  height: 7px;
  border-radius: 4px;
  background: var(--border);
  margin-bottom: 8px;
}

.nf-line.nf-t {
  width: 52%;
  background: var(--brand-soft-2);
}

.nf-line.w70 { width: 70%; }
.nf-line.w60 { width: 60%; }

.nf-chips {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 2px 0 10px;
}

.nf-chips i {
  font-style: normal;
  font-size: 10.5px;
  color: var(--brand-ink);
  background: var(--brand-soft);
  border: 1px solid var(--brand-soft-2);
  padding: 2px 9px;
  border-radius: 999px;
}

.nf-chips i.x {
  background: none;
  border: 0;
  color: var(--text-4);
  padding: 0;
}

.nf-match {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nf-match > span {
  font-size: 10.5px;
  color: var(--text-3);
}

.nf-bar {
  flex: 1;
  height: 6px;
  background: var(--border-soft);
  border-radius: 4px;
  overflow: hidden;
}

.nf-bar b {
  display: block;
  height: 100%;
  width: 92%;
  background: linear-gradient(90deg, var(--brand), #1ba6c4);
  border-radius: 4px;
}

.nf-pct {
  font-weight: 550;
  color: var(--text);
}

.news-feature .nf-body {
  padding: 34px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-feature h2 {
  font-size: 24px;
  letter-spacing: -0.025em;
  line-height: 1.35;
  margin: 14px 0 12px;
}

.news-feature p {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-2);
  margin-bottom: 20px;
}

.news-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
}

.news-item {
  display: grid;
  grid-template-columns: 92px 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 26px 4px;
  border-bottom: 1px solid var(--border);
  transition: background-color 0.18s var(--ease);
}

.news-item:hover {
  background: var(--bg-subtle);
}

.news-date {
  text-align: center;
  border-right: 1px solid var(--border);
  padding-right: 20px;
}

.news-date .d-day {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1;
}

.news-date .d-ym {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-3);
  margin-top: 6px;
  letter-spacing: 0.02em;
}

.news-item h3 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.45;
  margin: 8px 0 7px;
  transition: color 0.18s var(--ease);
}

.news-item:hover h3 {
  color: var(--brand);
}

.news-item p {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-item .n-arrow {
  color: var(--text-4);
  transition: transform 0.2s var(--ease), color 0.2s var(--ease);
}

.news-item:hover .n-arrow {
  color: var(--brand);
  transform: translateX(3px);
}

/* 整卡可点：标题链接的伪元素铺满卡片（stretched-link 模式，纯 CSS 无 JS） */
.news-item,
.news-feature {
  position: relative;
}

.stretched-link::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
}

/* 卡片内其余链接浮在拉伸层之上，保持各自可点 */
.nf-foot a,
.side-links a {
  position: relative;
  z-index: 2;
}

.news-item .n-arrow svg {
  width: 18px;
  height: 18px;
}

/* 标签 */
.chip {
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 8px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--brand-ink);
  background: var(--brand-soft);
  border-radius: var(--r-xs);
}

.chip-gray {
  color: var(--text-2);
  background: var(--bg-muted);
}

/* 置顶徽章：暖橙金（logo 太阳点缀色） */
.chip-gold {
  color: #8a5f0b;
  background: var(--accent-soft);
  border: 1px solid #f0dcae;
}

/* 侧栏 */
.side-block {
  padding: 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  margin-bottom: 20px;
}

.side-block h3 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 16px;
}

.side-links li {
  border-bottom: 1px solid var(--border-soft);
}

.side-links li:last-child {
  border-bottom: 0;
}

.side-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 0;
  font-size: 14px;
  color: var(--text-2);
  transition: color 0.16s var(--ease);
}

.side-links a:hover,
.side-links a.is-active {
  color: var(--brand);
}

.side-links .count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-4);
}

.side-cta {
  padding: 26px 24px;
  background: var(--dark);
  border-radius: var(--r-l);
  color: #fff;
}

.side-cta h3 {
  color: #fff;
  font-size: 17px;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
  text-transform: none;
}

.side-cta p {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--dark-text-2);
  margin-bottom: 20px;
}

/* 文章正文 */
.article {
  max-width: 720px;
}

.article-head {
  padding-bottom: 30px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--border);
}

.article-head h1 {
  font-size: clamp(28px, 3.4vw, 38px);
  letter-spacing: -0.03em;
  line-height: 1.3;
  margin: 16px 0 20px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 13.5px;
  color: var(--text-3);
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.article-meta svg {
  width: 14px;
  height: 14px;
  opacity: 0.7;
}

.article-body {
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-2);
}

.article-body > * + * {
  margin-top: 22px;
}

.article-body h2 {
  font-size: 21px;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-top: 44px;
  padding-left: 14px;
  border-left: 3px solid var(--brand);
  line-height: 1.4;
}

.article-body h3 {
  font-size: 17px;
  color: var(--text);
  margin-top: 32px;
}

.article-body strong {
  color: var(--text);
  font-weight: 600;
}

.article-body ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.article-body ul li {
  position: relative;
  padding-left: 20px;
}

.article-body ul li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 11px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--brand);
  opacity: 0.6;
}

.article-body blockquote {
  margin: 28px 0;
  padding: 20px 24px;
  background: var(--brand-soft);
  border-radius: var(--r-m);
  border-left: 3px solid var(--brand);
  font-size: 15px;
  line-height: 1.8;
  color: var(--brand-ink);
}

.article-foot {
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.article-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   13. 关于我们
   -------------------------------------------------------------------------- */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

/* 公司简介配图 */
.about-photo {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--sh-m);
}

.about-photo img {
  display: block;
  width: 100%;
  height: auto;
}

.about-photo figcaption {
  padding: 12px 18px;
  font-size: 12.5px;
  color: var(--text-3);
  border-top: 1px solid var(--border-soft);
  background: var(--bg-subtle);
  text-align: center;
  letter-spacing: 0.04em;
}

.about-intro .ai-text p {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-2);
}

.about-intro .ai-text p + p {
  margin-top: 18px;
}

.about-intro .ai-text strong {
  color: var(--text);
  font-weight: 600;
}

.mvv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  overflow: hidden;
}

.mvv {
  background: #fff;
  padding: 32px 28px;
}

.mvv .m-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--brand);
  margin-bottom: 14px;
}

.mvv h3 {
  font-size: 19px;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.mvv p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-2);
}

/* 时间轴 */
.timeline {
  position: relative;
  padding-left: 0;
}

.tl-item {
  position: relative;
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 32px;
  padding-bottom: 38px;
}

.tl-item::before {
  content: "";
  position: absolute;
  left: 128px;
  top: 8px;
  bottom: -6px;
  width: 1px;
  background: var(--border);
}

.tl-item:last-child::before {
  display: none;
}

.tl-item::after {
  content: "";
  position: absolute;
  left: 124px;
  top: 5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--border-strong);
}

.tl-item.is-now::after {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px var(--brand-soft);
}

.tl-year {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
  padding-top: 1px;
}

.tl-body h4 {
  font-size: 16.5px;
  margin-bottom: 7px;
}

.tl-body p {
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-2);
}

.tl-body .tl-tags {
  display: flex;
  gap: 6px;
  margin-top: 12px;
  flex-wrap: wrap;
}

/* 数据块 */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.metric {
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  background: #fff;
}

.metric .m-val {
  font-size: 32px;
  font-weight: 650;
  letter-spacing: -0.035em;
  color: var(--text);
  line-height: 1.1;
}

.metric .m-val small {
  font-size: 16px;
  font-weight: 550;
  color: var(--text-3);
  margin-left: 3px;
}

.metric .m-lbl {
  margin-top: 9px;
  font-size: 14px;
  color: var(--text-3);
}

/* 价值观 */
.value-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 44px;
}

.value-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
}

.value-item h4 {
  font-size: 16px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.value-item h4 .v-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--brand);
  font-weight: 600;
}

.value-item p {
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-2);
}

/* --------------------------------------------------------------------------
   14. 联系我们
   -------------------------------------------------------------------------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 56px;
  align-items: stretch;
}

/* 右栏表单下移，使「预约演示 / 咨询」卡顶边与左栏联系信息卡顶边对齐
   （108px = 左栏 eyebrow + 「联系方式」标题块高度，实测） */
.contact-form-col {
  margin-top: 108px;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  overflow: hidden;
}

.contact-row {
  display: flex;
  gap: 16px;
  padding: 22px 24px;
  background: #fff;
}

.contact-row .cr-ico {
  width: 38px;
  height: 38px;
  border-radius: var(--r-s);
  background: var(--bg-muted);
  color: var(--text-2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-row .cr-ico svg {
  width: 18px;
  height: 18px;
}

.contact-row .cr-label {
  font-size: 12.5px;
  color: var(--text-3);
  margin-bottom: 4px;
}

.contact-row .cr-value {
  font-size: 15px;
  font-weight: 550;
  color: var(--text);
  line-height: 1.55;
  word-break: break-all;
}

.contact-row .cr-value a:hover {
  color: var(--brand);
}

/* 表单 */
.form-card {
  padding: 34px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  box-shadow: var(--sh-s);
  height: 100%;
}

.form-card h3 {
  font-size: 20px;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.form-card > p {
  font-size: 14px;
  color: var(--text-3);
  margin-bottom: 26px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 13.5px;
  font-weight: 550;
  color: var(--text);
}

.field label .req {
  color: #c0392b;
  margin-left: 3px;
}

.field input,
.field select,
.field textarea {
  font: inherit;
  font-size: 14.5px;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-s);
  padding: 11px 13px;
  width: 100%;
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.field textarea {
  resize: vertical;
  min-height: 118px;
  line-height: 1.65;
}

.field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23868e9a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 38px;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-soft);
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--text-4);
}

.form-foot {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.form-note {
  font-size: 12.5px;
  color: var(--text-3);
  flex: 1;
  min-width: 200px;
}

.form-status {
  grid-column: 1 / -1;
  display: none;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  border-radius: var(--r-s);
  font-size: 14px;
  line-height: 1.6;
}

.form-status.is-show {
  display: flex;
}

.form-status.ok {
  background: var(--brand-soft);
  color: var(--brand-ink);
}

.form-status.err {
  background: #fdf0ee;
  color: #a33325;
}

.form-status svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
  margin-top: 2px;
}

/* 真实地图（高德 iframe）+ 左栏弹性对齐 */
.contact-aside {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.contact-aside .contact-list {
  width: 100%;
}

.map-card {
  margin-top: 24px;
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  overflow: hidden;
  background: var(--bg-subtle);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 280px;
  width: 100%;
}

.map-frame {
  position: relative;
  flex: 1;
  display: block;
  width: 100%;
  min-height: 240px;
  background: var(--bg-inset);
  border: 0;
}

.map-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.map-open {
  position: absolute;
  right: 12px;
  bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  box-shadow: var(--sh-s);
  transition: border-color 0.15s ease, color 0.15s ease;
}

.map-frame:hover .map-open,
.map-frame:focus-visible .map-open {
  border-color: var(--brand);
  color: var(--brand);
}

/* 联系方式卡片组 */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.channel-card {
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  background: #fff;
  text-align: center;
}

.channel-card .ch-ico {
  width: 44px;
  height: 44px;
  margin: 0 auto 16px;
  border-radius: var(--r-m);
  background: var(--brand-soft);
  color: var(--brand-strong);
  display: flex;
  align-items: center;
  justify-content: center;
}

.channel-card .ch-ico svg {
  width: 21px;
  height: 21px;
}

.channel-card h4 {
  font-size: 16px;
  margin-bottom: 7px;
}

.channel-card p {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text-3);
  margin-bottom: 14px;
}

.channel-card img {
  width: 116px;
  height: 116px;
  margin: 0 auto;
  border: 1px solid var(--border);
  border-radius: var(--r-s);
  padding: 5px;
  background: #fff;
  object-fit: contain;
}

/* --------------------------------------------------------------------------
   15. 正文页（隐私 / 条款）
   -------------------------------------------------------------------------- */
.legal-body {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-2);
}

.legal-body h2 {
  font-size: 19px;
  color: var(--text);
  margin: 40px 0 14px;
  letter-spacing: -0.02em;
}

.legal-body h2:first-child {
  margin-top: 0;
}

.legal-body p + p {
  margin-top: 14px;
}

.legal-body ul {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.legal-body ul li {
  position: relative;
  padding-left: 19px;
}

.legal-body ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 11px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-4);
}

.legal-updated {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-3);
  padding: 8px 14px;
  background: var(--bg-muted);
  border-radius: var(--r-s);
  margin-bottom: 32px;
}

/* --------------------------------------------------------------------------
   16. 分页
   -------------------------------------------------------------------------- */
.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 44px;
}

.pager a,
.pager span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 11px;
  font-size: 14px;
  color: var(--text-2);
  border: 1px solid var(--border);
  border-radius: var(--r-s);
  background: #fff;
  transition: all 0.16s var(--ease);
}

.pager a:hover {
  border-color: var(--text-3);
  color: var(--text);
}

.pager .is-current {
  background: var(--text);
  border-color: var(--text);
  color: #fff;
  font-weight: 600;
}

.pager .is-disabled {
  color: var(--text-4);
  background: var(--bg-subtle);
}

.pager svg {
  width: 15px;
  height: 15px;
}

/* --------------------------------------------------------------------------
   17. 入场动效（渐进增强：无 JS 时元素默认完全可见）
   -------------------------------------------------------------------------- */
/* 渐进增强：纯 CSS 滚动驱动动画（不依赖 JavaScript）
   安全设计：动画只在浏览器支持 animation-timeline: view() 时才生效；
   不支持的浏览器（含各类受限预览面板）不会应用任何隐藏样式，内容始终可见。
   因此本效果不会造成"内容被卡在隐藏态"。 */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .fade-up {
      animation: fade-up linear both;
      animation-timeline: view();
      animation-range: entry 0% cover 26%;
    }
  }
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .fade-up {
    opacity: 1;
    transform: none;
    animation: none;
  }

  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* --------------------------------------------------------------------------
   17.5 页面级组件补充
   -------------------------------------------------------------------------- */

/* 通用：缩小底部留白（用于承接下一段深色区块） */
.section-tight-bottom {
  padding-bottom: 72px;
}

/* 首页：能力网格（去竖线，用横向细线分隔） */
.caps-grid {
  gap: 20px;
}

/* 首页 / 场景卡：内联图标砖 */
.icon-tile-inline {
  margin: 0;
  width: 36px;
  height: 36px;
}

.icon-tile-inline svg {
  width: 18px;
  height: 18px;
}

/* 下载中心页 */
.dl-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 32px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-l);
}

.dl-card .dl-id {
  display: flex;
  align-items: center;
  gap: 16px;
}

.dl-card .icon-tile {
  margin-bottom: 0;
  width: 52px;
  height: 52px;
  border-radius: var(--r-l);
}

.dl-meta {
  font-size: 13px;
  color: var(--text-3);
  margin-top: 6px;
}

.dl-note {
  font-size: 13px;
  color: var(--text-3);
  margin-top: 16px;
}

.dl-note a {
  color: var(--text-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.dl-help {
  font-size: 14px;
  color: var(--text-2);
  margin-top: 24px;
}

@media (max-width: 700px) {
  .dl-card {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* 首页：部署方式卡 */
.deploy-desc {
  margin-top: 12px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-2);
}

.deploy-tags {
  margin-top: auto;
  padding-top: 20px;
}

/* 产品中心 */
.pb-actions {
  margin-top: auto;
  padding-top: 30px;
}

.compare-note {
  margin-top: 18px;
  font-size: 13.5px;
}

/* 公司动态 */
.nf-foot {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.nf-date {
  font-size: 13px;
  display: inline-flex;
  gap: 6px;
  align-items: center;
}

.nf-body h2 a:hover {
  color: var(--brand);
}

/* 动态详情 */
.article-actions {
  display: flex;
  gap: 10px;
}

.article-body a,
.legal-body a {
  color: var(--brand);
}

.article-body a:hover,
.legal-body a:hover {
  text-decoration: underline;
}

/* 关于我们 */
.about-h2 {
  margin-bottom: 22px;
}

.about-two-col {
  gap: 56px;
  align-items: start;
}

.metric-grid-2 {
  grid-template-columns: 1fr 1fr;
}

.value-list-1col {
  grid-template-columns: 1fr;
}

.value-item-last {
  border-bottom: 0;
}

.about-tags {
  margin-top: 22px;
}

/* 联系信息卡内文本变体 */
.cr-note {
  font-weight: 400;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-2);
}

.cr-strong {
  font-weight: 500;
}

.map-note {
  margin-top: 12px;
  font-size: 13px;
}

/* 表单说明文字中的链接 */
.form-note a {
  color: var(--brand);
}

.form-note a:hover {
  text-decoration: underline;
}

/* 新闻侧栏标签组 */
.side-block .scene-tags {
  margin-top: 0;
}

/* --------------------------------------------------------------------------
   18. 响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 40px;
  }

  .footer-brand-col {
    grid-column: 1 / -1;
  }
}

@media (max-width: 980px) {
  .nav,
  .nav-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .section {
    padding: 80px 0;
  }

  .section-lg {
    padding: 96px 0;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .pb-grid,
  .about-intro,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-form-col {
    margin-top: 0;
  }

  .pb-grid.reverse .pb-media {
    order: 0;
  }

  .pb-media {
    position: static;
  }

  .news-layout {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 28px;
  }

  .hero {
    padding-top: 72px;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .preview-body {
    grid-template-columns: 1fr;
  }

  .pv-side {
    display: none;
  }

  .mvv-grid {
    grid-template-columns: 1fr;
  }

  .metric-grid,
  .channel-grid {
    grid-template-columns: 1fr;
  }

  .about-two-col {
    grid-template-columns: 1fr;
    gap: 44px;
  }
}

@media (max-width: 720px) {
  .container {
    padding: 0 20px;
  }

  .section {
    padding: 64px 0;
  }

  .section-lg {
    padding: 72px 0;
  }

  .section-head {
    margin-bottom: 40px;
  }

  .grid-2,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .pb-caps,
  .form-grid,
  .value-list {
    grid-template-columns: 1fr;
  }

  .hero-stats li {
    padding: 18px 12px;
  }

  .hero-stats .stat-value {
    font-size: 22px;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-cta .btn {
    width: 100%;
  }

  .news-feature {
    grid-template-columns: 1fr;
  }

  .news-feature .nf-media {
    min-height: 170px;
  }

  .news-feature .nf-body {
    padding: 26px 22px;
  }

  .news-item {
    grid-template-columns: 1fr auto;
    gap: 16px;
  }

  .news-date {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 34px;
    padding-bottom: 38px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .cta-band {
    padding: 64px 0;
  }

  .cta-band .btn-group {
    width: 100%;
  }

  .cta-band .btn-group .btn {
    flex: 1;
  }

  .form-card {
    padding: 26px 22px;
  }

  .card,
  .product-card {
    padding: 24px 22px;
  }

  .avatar-strip {
    grid-template-columns: 1fr;
  }

  .pv-cards {
    grid-template-columns: 1fr;
  }

  .tl-item {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .tl-item::before,
  .tl-item::after {
    display: none;
  }

  .page-hero {
    padding: 52px 0 44px;
  }
}

/* --------------------------------------------------------------------------
   19. 打印
   -------------------------------------------------------------------------- */
@media print {
  .site-header,
  .mobile-nav,
  .cta-band,
  .nav-toggle {
    display: none !important;
  }

  body {
    color: #000;
  }

  .section,
  .section-lg {
    padding: 24px 0;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 11px;
    color: #666;
  }
}

/* --------------------------------------------------------------------------
   20. 全页滚动吸附（鼠标滚轮翻页）
   纯 CSS scroll-snap，无 JS 依赖；仅桌面（>980px）启用。
   公司动态页 <html class="nosnap"> 不参与（保持连续长滚动）。
   -------------------------------------------------------------------------- */
@media (min-width: 981px) {
  html.snap {
    scroll-snap-type: y mandatory;
  }

  html.snap main > section,
  html.snap .cta-band {
    scroll-snap-align: start;
  }

  html.snap .site-footer {
    scroll-snap-align: end;
  }
}

@media (min-width: 981px) and (prefers-reduced-motion: reduce) {
  html.snap {
    scroll-snap-type: none;
  }
}

/* -------------------------------------------------------------------------- */

/* -------------------------------------------------------------------------- */
/* 21. 产品块图片面板（翌小知）                                                 */
/* -------------------------------------------------------------------------- */
.pb-photo {
  margin: 0;
  width: fit-content;
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  overflow: hidden;
  background: #fff;
  box-shadow: var(--sh-m);
}

/* 图片面板贴栏底：与左栏按钮底边对齐；水平居中 */
.pb-media {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
}

.pb-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

/* 图片限高：避免 3:4 竖图把行撑得远高于文字栏，留白过大 */
.pb-photo img {
  display: block;
  width: auto;
  max-width: 100%;
  max-height: 560px;
  height: auto;
}