/* ----------------------------------------------------------------
   pages.css — page-specific tiny adjustments
   ---------------------------------------------------------------- */

/* Hide hover-only decorative line under footer headings on tiny viewports */
@media (max-width: 720px) {
  .footer-col h4 { margin-bottom: 12px; }
}

/* Process step horizontal layout specific tweak */
.solutions-process .process-flow { margin-top: var(--space-6); }

/* AI grid 3-column breakdown */
.ai-services-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.ai-services-list li {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px dashed var(--color-border);
  align-items: flex-start;
}
.ai-services-list li:last-child { border-bottom: none; }
.ai-services-list .ic {
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  margin-top: 2px;
}
.ai-services-list strong { display: block; color: var(--color-text-1); font-size: 15px; margin-bottom: 4px; }
.ai-services-list span { color: var(--color-text-2); font-size: 13px; }

/* Cooperation process (cases page) */
.coop-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.coop-step {
  text-align: center;
  padding: var(--space-5) var(--space-3);
  border-radius: var(--radius-md);
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  position: relative;
}
.coop-step:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-primary);
  font-size: 18px;
  z-index: 1;
}
.coop-step .no {
  font-family: var(--font-en);
  font-size: 12px;
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 2px;
  display: block;
  margin-bottom: 6px;
}
.coop-step h4 { font-size: 16px; color: var(--color-primary-deep); }
.coop-step p  { font-size: 12px; color: var(--color-text-2); margin-top: 4px; }

@media (max-width: 720px) {
  .coop-flow { grid-template-columns: 1fr 1fr; }
  .coop-flow .coop-step:nth-child(2)::after,
  .coop-flow .coop-step:nth-child(4)::after { display: none; }
  .coop-flow .coop-step:nth-child(odd)::after { content: "→"; }
}

@media (max-width: 480px) {
  .coop-flow { grid-template-columns: 1fr; }
  .coop-flow .coop-step::after { content: "↓"; right: 50%; top: auto; bottom: -16px; transform: translateX(50%); }
}

/* Solutions page highlight row (banner + service row) */
.solutions-banner-stack { margin-bottom: var(--space-8); }

/* small spacing */
@media (min-width: 721px) {
  .spacer-lg { padding-top: var(--space-8); }
}

/* ===============================================================
   Homepage — 视觉层次 / 栅格 / 大卡片实景背景
   说明：本段只作用于首页（.hero / #about-preview / #industry-preview
        / #news / .section--cta），不改动其他页面的既有结构。
   =============================================================== */

/* ---------- 1. 区块节奏：统一留白 ---------- */
.section { padding: clamp(56px, 7.5vw, 104px) 0; }
.section--cta { padding: clamp(32px, 4vw, 64px) 0 clamp(56px, 7.5vw, 104px); }

/* ---------- 2. 标题 / 正文对比强化 ---------- */
.section-head { max-width: 760px; margin: 0 auto clamp(36px, 4vw, 56px); }
.section-eyebrow { font-size: 12px; letter-spacing: 3px; }
.section-title {
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.4px;
  margin: var(--space-4) 0;
}
.section-desc {
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.85;
  max-width: 640px;
  margin: 0 auto;
}
/* 解决方案「智慧 + 行业」描述：加宽容器，避免末尾单字孤行 */
.section-desc--wide {
  max-width: 760px;
}
@media (max-width: 720px) {
  .section-desc--wide {
    max-width: 100%;
    font-size: clamp(14px, 3.8vw, 15px);
  }
}
/* 左对齐标题组（内页使用）保持左对齐，不居中 */
.section-head--left .section-desc { margin-left: 0; }

/* ---------- 3. HERO：实景城市背景 ---------- */
.hero--photo {
  min-height: var(--hero-min-h);
  padding: clamp(72px, 9vw, 120px) 0 clamp(56px, 7vw, 96px);
  background-color: var(--color-bg-dark);
  background-image: url("../img/photos/hero-city.jpg");
  background-size: cover;
  background-position: center;
}
/* 左侧文字区最暗，右侧留景，兼顾对比度与画面感 */
.hero--photo::before {
  background:
    linear-gradient(90deg, rgba(6,20,46,0.94) 0%, rgba(6,20,46,0.74) 48%, rgba(6,20,46,0.34) 100%),
    linear-gradient(180deg, rgba(6,20,46,0.55) 0%, rgba(6,20,46,0.22) 42%, rgba(6,20,46,0.72) 100%);
}
.hero--photo::after { opacity: 0.45; }

.hero .hero-grid {
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(32px, 5vw, 72px);
}
.hero h1 { font-weight: 800; letter-spacing: -0.8px; }
.hero p.lead {
  color: rgba(255,255,255,0.80);
  max-width: 560px;
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 1.85;
}
.hero .btn .btn-icon { width: 18px; height: 18px; }

/* Hero 底部数据条（替换原内联样式，统一基线对齐） */
.hero-stats {
  list-style: none;
  margin: var(--space-7) 0 0;
  padding: var(--space-5) 0 0;
  border-top: 1px solid rgba(255,255,255,0.16);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
}
.hero-stats li { display: flex; flex-direction: column; gap: 2px; }
.hero-stats strong {
  font-family: var(--font-en);
  font-size: 26px;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.1;
}
.hero-stats span { font-size: 12px; letter-spacing: 1px; color: rgba(255,255,255,0.64); }

/* Hero 右侧能力矩阵卡片 */
.hero-side {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  padding: var(--space-6);
  backdrop-filter: blur(14px) saturate(1.2);
}
.hero-side h3 {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 1px;
  color: rgba(255,255,255,0.92);
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-5);
  border-bottom: 1px solid rgba(255,255,255,0.16);
}
.hero-side ul { gap: var(--space-5); }
.hero-side li { gap: var(--space-4); align-items: flex-start; }
.hero-side li img {
  width: 26px; height: 26px;
  flex-shrink: 0;
  margin-top: 2px;
  filter: brightness(0) invert(1);
  opacity: 0.95;
}
.hero-side li strong { display: block; color: #FFFFFF; font-size: 15px; margin-bottom: 2px; }
.hero-side li span { font-size: 13px; color: rgba(255,255,255,0.68); line-height: 1.65; }

/* ---------- 4. 关于我们预览：栅格与地图图注 ---------- */
/* 白 → 浅灰渐变，让该区块与上下形成层次过渡 */
#about-preview { background: linear-gradient(180deg, #FFFFFF 0%, var(--color-bg-soft) 100%); }
#about-preview img { background: #FFFFFF; }
.about-grid { gap: clamp(32px, 5vw, 72px); align-items: center; }
.lead-copy {
  text-align: justify;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--color-text-2);
}
.about-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #FFFFFF;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(14,42,92,0.06);
}
.about-figure img { display: block; width: 100%; height: auto; }
.about-figure figcaption {
  padding: var(--space-4) var(--space-5);
  font-size: 13px;
  letter-spacing: 0.5px;
  color: var(--color-text-2);
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-border);
}
.about-grid .big-stat { margin-top: var(--space-7); }

/* ---------- 5. 智慧+行业：大卡片实景背景 ---------- */
.ind-grid { gap: var(--space-5); }

.ind-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 300px;
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  overflow: hidden;
  color: #FFFFFF;
  background-color: var(--color-primary-deep);
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow-card);
  transition: transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}
/* 深色半透明遮罩：上浅下深，保证标题与正文对比度 */
.ind-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(
    180deg,
    rgba(6,20,46,0.52) 0%,
    rgba(6,20,46,0.78) 55%,
    rgba(6,20,46,0.94) 100%
  );
}
/* 品牌蓝调叠加，让四张不同来源的实拍图色调统一 */
.ind-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(135deg, rgba(30,98,217,0.40) 0%, rgba(60,196,245,0.10) 100%);
}
.ind-card > * { position: relative; z-index: 1; }

.ind-card .card-icon {
  background: rgba(255,255,255,0.16);
  border: 1px solid rgba(255,255,255,0.26);
  backdrop-filter: blur(6px);
  margin-bottom: var(--space-4);
}
.ind-card .card-icon img {
  width: 30px; height: 30px;
  filter: brightness(0) invert(1);
}
.ind-card h3 {
  color: #FFFFFF;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.ind-card p { color: rgba(255,255,255,0.82); font-size: 14px; line-height: 1.7; }
.ind-card .card-link { color: var(--color-accent); }
.ind-card .card-link img { filter: brightness(0) invert(1); opacity: 0.9; }
.ind-card:hover { transform: translateY(calc(-1 * var(--lift))); box-shadow: var(--shadow-hover); }

/* 复用项目内已有素材（租赁=财务照 / 物流=港口照），仅新增教育、景区两张 */
.ind-card--leasing   { background-image: url("../img/photos/news-data-asset.jpg"); }
.ind-card--logistics { background-image: url("../img/photos/news-rwa-port.jpg"); }
.ind-card--education { background-image: url("../img/photos/ind-edu.jpg"); }
.ind-card--scenic    { background-image: url("../img/photos/ind-scenic.jpg"); }

/* ---------- 6. 行业洞察：卡片间距与字号层次 ---------- */
.news-grid { gap: var(--space-6); }
.news-card .news-body h4 { font-size: 18px; font-weight: 700; line-height: 1.5; }
.news-card .news-body p  { font-size: 14px; line-height: 1.8; }

/* ---------- 7. CTA：实景会议背景 ---------- */
.cta-band--photo {
  padding: clamp(48px, 6vw, 88px) var(--space-6);
  background-color: var(--color-primary-deep);
  background-image: url("../img/photos/cta-meeting.jpg");
  background-size: cover;
  background-position: center;
}
.cta-band--photo::before {
  background:
    linear-gradient(180deg, rgba(6,20,46,0.82) 0%, rgba(6,20,46,0.68) 50%, rgba(6,20,46,0.90) 100%),
    linear-gradient(90deg, rgba(30,98,217,0.32) 0%, rgba(60,196,245,0.16) 100%);
}
/* 细条纹光感纹理：作为 .cta-band--photo::after 的基础层 */
.cta-band::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: repeating-linear-gradient(45deg, rgba(255,255,255,0.06) 0 2px, transparent 2px 12px);
  pointer-events: none;
}
.cta-band--photo::after { opacity: 0.5; }
.cta-band--photo h2 {
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 800;
  letter-spacing: -0.4px;
}
.cta-band--photo p { color: rgba(255,255,255,0.82); font-size: 16px; }

/* ---------- 8. 页脚小元素 ---------- */
.tag-row { display: flex; gap: 8px; margin-top: 20px; flex-wrap: wrap; }
.footer-contact > img { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; }
.footer-contact .muted { display: block; color: #9AAAC1; font-weight: 400; }
.footer-contact a.muted { color: #9AAAC1; text-decoration: none; transition: color var(--duration-fast) var(--ease-out); }
.footer-contact a.muted:hover { color: var(--color-primary); }

/* ===============================================================
   PART 2 — 内页大卡片 / 大横幅：纯色背景 → 实景背景 + 深色遮罩
   说明：
   1) 全部复用 assets/img/photos/ 中已有素材，未新增任何图片；
   2) 每张图按实测亮度配置遮罩强度（亮图重压、暗图轻压），
      保证白色文字对比度达标；
   3) 只覆盖背景与遮罩，不动任何文字内容与结构。
   图片亮度实测（0-255）：hero-city 66 / news-ai-office 91 /
   ind-scenic 109 / cta-meeting 137 / news-rwa-port 136 /
   ind-edu 133 / news-data-asset 166 / news-wb-office 251
   =============================================================== */

/* ---------- A. 内页顶部大横幅 .page-header ---------- */
.page-header {
  background-color: var(--color-bg-dark);
  background-size: cover;
  background-position: center;
  padding: clamp(88px, 9vw, 136px) 0 clamp(56px, 6vw, 84px);
  /* 与首页首屏共用同一套高度比例（内页按 --pagehead-min-h 等比缩放），
     并用同样的垂直居中方式，保证「区块宽高占比」与首页一致 */
  min-height: var(--pagehead-min-h);
  display: flex;
  align-items: center;
}
.page-header > .container { width: 100%; }
.page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(90deg, rgba(6,20,46,0.86) 0%, rgba(6,20,46,0.62) 55%, rgba(6,20,46,0.40) 100%),
    linear-gradient(180deg, rgba(6,20,46,0.78) 0%, rgba(6,20,46,0.58) 45%, rgba(6,20,46,0.90) 100%);
}
/* 原斜纹装饰在照片上会显脏，降低透明度只留极轻质感 */
.page-header::after { opacity: 0.28; }
.page-header--about   { background-image: url("../img/photos/cta-meeting.jpg"); }
.page-header--cases   { background-image: url("../img/photos/hero-city.jpg"); background-position: center 40%; }
.page-header--contact { background-image: url("../img/photos/news-ai-office.jpg"); }
/* 城市夜景本身较暗，遮罩相应减轻，保留画面层次 */
.page-header--cases::before {
  background:
    linear-gradient(90deg, rgba(6,20,46,0.78) 0%, rgba(6,20,46,0.52) 55%, rgba(6,20,46,0.32) 100%),
    linear-gradient(180deg, rgba(6,20,46,0.68) 0%, rgba(6,20,46,0.48) 45%, rgba(6,20,46,0.84) 100%);
}
/* 页面主标题字号按容器宽度缩放，长标题（如解决方案页 h1）在桌面/平板均保持单行 */
.page-header h1 {
  font-size: clamp(15px, 3.6vw, 46px);
  letter-spacing: -0.6px;
  white-space: nowrap;
}
.page-header p  { color: rgba(255,255,255,0.78); }

/* ---------- B. 解决方案页：三大业务横幅 .solu-banner ---------- */
.solu-banner {
  background-color: var(--color-bg-dark);
  background-size: cover;
  background-position: center;
  padding: clamp(40px, 4.5vw, 64px) clamp(28px, 4vw, 56px);
}
.solu-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(90deg, rgba(6,20,46,0.92) 0%, rgba(6,20,46,0.74) 60%, rgba(6,20,46,0.50) 100%),
    linear-gradient(180deg, rgba(6,20,46,0.42) 0%, rgba(6,20,46,0.82) 100%);
}
.solu-banner::after { opacity: 0.32; }
.solu-banner--data    { background-image: url("../img/photos/news-data-asset.jpg"); }
.solu-banner--ai      { background-image: url("../img/photos/news-ai-office.jpg"); }
.solu-banner--fintech { background-image: url("../img/photos/news-rwa-port.jpg"); }
/* 数据资产配图整体偏亮，额外加压一层 */
.solu-banner--data::before {
  background:
    linear-gradient(90deg, rgba(6,20,46,0.94) 0%, rgba(6,20,46,0.82) 62%, rgba(6,20,46,0.62) 100%),
    linear-gradient(180deg, rgba(6,20,46,0.58) 0%, rgba(6,20,46,0.88) 100%);
}
.solu-banner p { color: rgba(255,255,255,0.78); }

/* ---------- C. 解决方案页：业务封面图 .solu-art ---------- */
.solu-art {
  height: 200px;
  background-color: var(--color-primary-deep);
  background-size: cover;
  background-position: center;
}
/* ::before 已被光斑占用，遮罩走 ::after */
.solu-art::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    180deg,
    rgba(6,20,46,0.34) 0%,
    rgba(6,20,46,0.70) 58%,
    rgba(6,20,46,0.92) 100%
  );
}
.solu-art > * { position: relative; z-index: 2; }
.solu-art > svg {
  width: 64px;
  height: 64px;
  filter: drop-shadow(0 2px 8px rgba(6,20,46,0.45));
}
.solu-art .bg-icon { background: rgba(255,255,255,0.16); backdrop-filter: blur(6px); }
.solu-art--leasing   { background-image: url("../img/photos/news-data-asset.jpg"); }
.solu-art--logistics { background-image: url("../img/photos/news-rwa-port.jpg"); }
.solu-art--education { background-image: url("../img/photos/ind-edu.jpg"); }
.solu-art--scenic    { background-image: url("../img/photos/ind-scenic.jpg"); }
/* 与首页「智慧+行业」四卡保持同一套素材，形成系列感 */
.solu-art--leasing::after {
  background: linear-gradient(
    180deg,
    rgba(6,20,46,0.52) 0%,
    rgba(6,20,46,0.80) 58%,
    rgba(6,20,46,0.95) 100%
  );
}

/* ---------- D. 解决方案页：特色卡封面 .card-cover ---------- */
.card--feature .card-cover {
  height: 176px;
  background-color: var(--color-primary-deep);
  background-size: cover;
  background-position: center;
}
.card--feature .card-cover::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    180deg,
    rgba(6,20,46,0.52) 0%,
    rgba(6,20,46,0.78) 55%,
    rgba(6,20,46,0.94) 100%
  );
}
.card--feature .card-cover > * { position: relative; z-index: 2; }
/* 原青色光斑会压在遮罩之上，减弱后避免局部过亮影响 tag/icon 识别 */
.card--feature .card-cover::after { opacity: 0.32; }
.card-cover--wb    { background-image: url("../img/photos/news-wb-office.jpg"); background-position: center top; }
.card-cover--agent { background-image: url("../img/photos/news-ai-office.jpg"); }
/* WorkBuddy 产品截图为浅色 UI（亮度 251），需最强遮罩 */
.card-cover--wb::before {
  background: linear-gradient(
    180deg,
    rgba(6,20,46,0.72) 0%,
    rgba(6,20,46,0.86) 55%,
    rgba(6,20,46,0.96) 100%
  );
}

/* ---------- E. 客户案例页：案例大卡左栏 .case-art ---------- */
.case-card .case-art {
  background-color: var(--color-primary-deep);
  background-size: cover;
  background-position: center;
  min-height: 300px;
}
.case-card .case-art::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(
    180deg,
    rgba(6,20,46,0.52) 0%,
    rgba(6,20,46,0.78) 50%,
    rgba(6,20,46,0.96) 100%
  );
}
.case-card .case-art > * { position: relative; z-index: 1; }
.case-card .case-art h3 { text-shadow: 0 2px 10px rgba(6,20,46,0.35); }
.case-art--finance       { background-image: url("../img/photos/news-data-asset.jpg"); }
.case-art--manufacturing { background-image: url("../img/photos/news-rwa-port.jpg"); }
.case-art--agriculture   { background-image: url("../img/photos/ind-scenic.jpg"); }
/* 金融案例配图偏亮，加重顶部与底部压暗 */
.case-art--finance::before {
  background: linear-gradient(
    180deg,
    rgba(6,20,46,0.68) 0%,
    rgba(6,20,46,0.84) 50%,
    rgba(6,20,46,0.96) 100%
  );
}

/* ---------- F. 关于我们页：数据条 .big-stat ---------- */
.big-stat--photo {
  background-color: var(--color-bg-dark);
  background-image: url("../img/photos/hero-city.jpg");
  background-size: cover;
  background-position: center;
  padding: clamp(40px, 4.5vw, 64px);
}
.big-stat--photo::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(180deg, rgba(6,20,46,0.78) 0%, rgba(6,20,46,0.90) 100%);
}
.big-stat--photo .item .label { color: rgba(255,255,255,0.72); }

/* ---------- G. 全站 CTA 通栏统一实景背景 ---------- */
.cta-band {
  background-color: var(--color-primary-deep);
  background-image: url("../img/photos/cta-meeting.jpg");
  background-size: cover;
  background-position: center;
  padding: clamp(48px, 6vw, 88px) clamp(28px, 4vw, 56px);
}
.cta-band::before {
  background:
    linear-gradient(180deg, rgba(6,20,46,0.86) 0%, rgba(6,20,46,0.74) 50%, rgba(6,20,46,0.92) 100%),
    linear-gradient(90deg, rgba(30,98,217,0.30) 0%, rgba(60,196,245,0.16) 100%);
}

/* ===============================================================
   PART 3 — 全站排版升级：留白更舒展、层级对比更强
   仅调整间距 / 字号 / 字重 / 圆角，配色与内容结构保持不变
   =============================================================== */

.section { padding: clamp(64px, 8vw, 120px) 0; }

.section-head {
  max-width: 780px;
  margin: 0 auto clamp(40px, 4.5vw, 64px);
}
.section-eyebrow { font-size: 12.5px; letter-spacing: 3px; }
.section-title {
  font-size: clamp(30px, 3.6vw, 46px);
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.22;
  margin: var(--space-4) 0 var(--space-4);
}
/* 标题字号按 max-width 780 收紧，避免尾字孤行；仍用 clamp 保证响应式 */
.section-head .section-title {
  font-size: clamp(18px, 3.2vw, 40px);
  white-space: nowrap;
}
/* 双栏布局中的标题容器较窄，同步缩小并避免折行 */
.about-grid .section-title {
  font-size: clamp(17px, 2.4vw, 30px);
  white-space: nowrap;
}
/* CTA 通栏标题：防止长句在移动端折行 */
.cta-band h2 {
  font-size: clamp(15px, 2.4vw, 34px);
  white-space: nowrap;
}
/* 新闻卡标题：按卡片内容区宽度收紧，保证单行 */
.news-card .news-body h4 {
  font-size: clamp(11px, 0.9vw, 13px);
  white-space: nowrap;
}
.section-desc {
  font-size: clamp(15px, 1.35vw, 17.5px);
  line-height: 1.9;
  max-width: 680px;
}

/* 栅格与卡片：更大的呼吸感 */
.grid { gap: clamp(24px, 2.6vw, 36px); }
.card { padding: clamp(28px, 2.8vw, 40px); }
.card h3 { font-size: 22px; letter-spacing: -0.2px; line-height: 1.35; }
.card p  { line-height: 1.85; }
.card-icon { width: 60px; height: 60px; }

.kpi-row, .adv-grid, .culture-grid, .stat-row, .feature-list { gap: clamp(20px, 2.2vw, 32px); }
.adv-card   { padding: clamp(24px, 2.4vw, 34px); }
.culture-card { padding: clamp(24px, 2.6vw, 36px); }
.honor-card { padding: clamp(24px, 2.4vw, 34px); }
.process-flow { gap: var(--space-4); }
.process-step { padding: var(--space-5) var(--space-4); }
.coop-flow { gap: clamp(16px, 1.8vw, 28px); }

/* 解决方案大卡：加宽留白、强化标题层级 */
.solu-tile {
  padding: clamp(28px, 3vw, 44px);
  gap: clamp(28px, 3.4vw, 48px);
}
.solu-tile + .solu-tile { margin-top: clamp(24px, 2.6vw, 36px); }
.solu-tile h3 { font-size: 26px; letter-spacing: -0.3px; }
.solu-tile .solu-desc { line-height: 1.85; }

/* 案例卡：右栏留白同步放大 */
.case-card .case-body { padding: clamp(28px, 3vw, 44px); gap: var(--space-5); }
.case-card .case-body h4 { font-size: 21px; letter-spacing: -0.2px; }
.case-card .case-body p  { line-height: 1.85; }

/* 按钮：更舒展的点击区 */
.btn { padding: 13px 26px; }
.btn--lg { padding: 16px 34px; font-size: 16.5px; }

/* 导航与页脚留白 */
.nav-bar { height: 84px; } /* 配合放大后的品牌标识（52px + 底衬留白） */
.site-footer { padding: clamp(56px, 6vw, 88px) 0 var(--space-5); }
/* 收紧列间距，让三个链接板块与二维码列靠得更近，整体并排成一行 */
.footer-grid { gap: clamp(24px, 2.8vw, 40px); }

/* ===============================================================
   PART 4 — 首页「联系我们」CTA：换成真实城市夜景摄影
   原会议素材偏「AI 生成 / DeepSeek 风格」，替换为实体照片质感的
   实景图；同步加深遮罩，保证白色标题与按钮文字清晰可读。
   特异性 (0,2,0)，用于覆盖 PART 2 中 .cta-band 的通用背景。
   =============================================================== */
.section--cta .cta-band--photo {
  background-image: url("../img/photos/hero-city.jpg");
  background-position: center 32%;
}
.section--cta .cta-band--photo::before {
  background:
    linear-gradient(180deg, rgba(6,20,46,0.88) 0%, rgba(6,20,46,0.78) 50%, rgba(6,20,46,0.94) 100%),
    linear-gradient(90deg, rgba(30,98,217,0.28) 0%, rgba(60,196,245,0.14) 100%);
}
.section--cta .cta-band--photo::after { opacity: 0.35; }

/* 首屏右侧「三大业务板块」卡片的排版细节 */
.hero-side ul li > div { flex: 1; }
.hero-side li span { display: block; }
/* 桌面端与左侧文案等高，避免首屏右侧出现上下留白 */
@media (min-width: 961px) {
  .hero-side {
    align-self: stretch;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
}

/* ===============================================================
   PART 5 — 首页首屏/第二屏横向铺满 & 联系我们页首屏换图
   1) 仅调整文字块宽度与位置，不增删改任何文案；
   2) 不恢复此前移除的地图/图注，空容器直接隐藏；
   3) 联系我们第一屏由 DeepSeek 截图替换为城市夜景实景。
   =============================================================== */

/* 隐藏首页当前无内容的右侧占位容器 */
.hero .hero-side { display: none; }
#about-preview .about-figure { display: none; }

@media (min-width: 961px) {
  /* 第 1 屏：单列铺满，数据条横向舒展 */
  .hero .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: none; }
  .hero p.lead { max-width: none; }
  .hero-stats {
    justify-content: space-between;
    gap: clamp(24px, 4vw, 64px);
  }
  .hero-stats li { flex: 1 1 0; }

  /* 第 2 屏：左侧文案占满容器，介绍正文单列连续展示 */
  #about-preview .about-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }
  #about-preview .about-grid > .reveal:first-child {
    display: grid;
    grid-template-columns: 1fr;
    column-gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }
  #about-preview .about-grid > .reveal:first-child > .section-eyebrow,
  #about-preview .about-grid > .reveal:first-child > .section-title {
    grid-column: 1 / -1;
  }
  #about-preview .about-grid > .reveal:first-child > .big-stat {
    grid-column: 1 / -1;
  }
}

/* 联系我们页第一屏：替换 DeepSeek 风格截图为城市夜景摄影 */
.page-header--contact {
  background-image: url("../img/photos/hero-city.jpg");
  background-position: center 40%;
}
.page-header--contact::before {
  background:
    linear-gradient(90deg, rgba(6,20,46,0.78) 0%, rgba(6,20,46,0.52) 55%, rgba(6,20,46,0.32) 100%),
    linear-gradient(180deg, rgba(6,20,46,0.68) 0%, rgba(6,20,46,0.48) 45%, rgba(6,20,46,0.84) 100%);
}

/* ============================================================
   PART 6  文字错峰渐显（fx-stagger）—— 全站统一特效
   规则：
   - 初始隐藏由 CSS 首帧生效（html.fx-stagger 由 head 内联脚本添加），
     因此不会出现「先显示后被 JS 藏起来」的闪现；
   - 只动 opacity / transform / filter（合成器属性，不触发重排）；
   - 时长 0.72s，相邻元素延迟 120ms（由 scroll.js 写入 --fx-delay，封顶 720ms）；
   - 播放顺序按文档顺序：眉标 → 标题 → 副标题/正文 → 卡片；
   - section 播放完毕后由 JS 加 .fx-fin 退出隐藏作用域，元素回到原生样式
     （不残留 transform / filter，hover 等交互不受影响）；
   - 不支持 :is() 的旧浏览器整条规则失效 → 内容直接可见（优雅降级）。
   ============================================================ */

/* 位移与模糊强度（变量形式，便于按屏幕尺寸微调）
   动效参数在此处集中定义：CSS 与 scroll.js 都从这几个变量读取，
   保证「时长 / 错峰 / 缓动曲线」全站只有一份真源，不会各板块各写一套。 */
html.fx-stagger {
  --fx-y: 18px;
  --fx-blur: 4px;
  --fx-duration: 720ms;
  --fx-step: 120ms;
  --fx-max-step: 6;   /* 无单位，供 scroll.js 计算延迟封顶 */
  --fx-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}
@media (max-width: 720px) {
  html.fx-stagger { --fx-y: 12px; --fx-blur: 3px; }
}

/* 仅在「用户未要求减少动效」时启用隐藏与动画 */
@media (prefers-reduced-motion: no-preference) {

  /* 1) 初始隐藏状态（首帧即生效）
        :not(.fx-fin) —— 播放完毕后彻底退出；
        :not(.fx-nested) —— 卡片内部的标题/正文随父级一起出现，不重复隐藏 */
  html.fx-stagger section:not(.fx-fin) :is(
    .breadcrumb,
    .section-eyebrow, .eyebrow-chip, .hero-eyebrow,
    h1, h2, h3,
    p, .section-desc, .page-header p, .lead, .lead-copy, .solu-desc,
    .big-stat, .hero-stats, .stat-grid, .stat-row, .kpi-row,
    .culture-card, .honor-card, .adv-card, .solu-tile, .solu-banner,
    .case-card, .contact-card, .branch-item, .branch-list,
    .card, .news-card, .ind-card,
    .process-flow, .coop-flow, .timeline,
    .form-card, .contact-form, .contact-info-list,
    .solu-list, .feature-list, .case-bullets,
    .btn-row, .hero-actions, .cta-band,
    .jump-row, .chip-row, .service-row, .honor-grid,
    .cert-badge-row, .contact-grid, .ai-services-list,
    figure
  ):not(.fx-nested) {
    opacity: 0;
    transform: translate3d(0, var(--fx-y), 0);
    filter: blur(var(--fx-blur));
    will-change: opacity, transform, filter;
  }

  /* 2) 该 section 进入视口后播放（.fx-in 由 scroll.js 添加，每屏一次） */
  html.fx-stagger section.fx-in:not(.fx-fin) :is(
    .breadcrumb,
    .section-eyebrow, .eyebrow-chip, .hero-eyebrow,
    h1, h2, h3,
    p, .section-desc, .page-header p, .lead, .lead-copy, .solu-desc,
    .big-stat, .hero-stats, .stat-grid, .stat-row, .kpi-row,
    .culture-card, .honor-card, .adv-card, .solu-tile, .solu-banner,
    .case-card, .contact-card, .branch-item, .branch-list,
    .card, .news-card, .ind-card,
    .process-flow, .coop-flow, .timeline,
    .form-card, .contact-form, .contact-info-list,
    .solu-list, .feature-list, .case-bullets,
    .btn-row, .hero-actions, .cta-band,
    .jump-row, .chip-row, .service-row, .honor-grid,
    .cert-badge-row, .contact-grid, .ai-services-list,
    figure
  ):not(.fx-nested) {
    animation: fx-rise var(--fx-duration, 720ms) var(--fx-ease, cubic-bezier(0.22, 0.61, 0.36, 1)) both;
    animation-delay: var(--fx-delay, 0ms);
  }

  @keyframes fx-rise {
    from {
      opacity: 0;
      transform: translate3d(0, var(--fx-y, 18px), 0);
      filter: blur(var(--fx-blur, 4px));
    }
    to {
      opacity: 1;
      transform: translate3d(0, 0, 0);
      filter: blur(0);
    }
  }
}

/* ============================================================
   PART 7 — 内页与首页对齐：统一层级、间距工具与交互反馈
   原则：全部复用 variables.css 的 --space-* / --duration-* / --ease-*
        与 components.css 的既有组件，不为单个板块另写一套样式。
   ============================================================ */

/* ---------- 1. 全站间距工具类 ----------
   值全部取自 --space-*，因此会随 responsive.css 中的断点缩放，
   桌面端与移动端表现一致；放在本文件末尾以确保覆盖组件默认 margin。 */
.mt-3 { margin-top: var(--space-3); }   /* 12px */
.mt-4 { margin-top: var(--space-4); }   /* 16px */
.mt-5 { margin-top: var(--space-5); }   /* 24px */
.mt-6 { margin-top: var(--space-6); }   /* 32px */
.mt-7 { margin-top: var(--space-7); }   /* 48px */
.mt-8 { margin-top: var(--space-8); }   /* 64px */
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }

/* ---------- 2. 紧凑型区块（快速跳转条） ---------- */
.section--jump {
  padding: var(--space-5) 0;
  background: var(--color-primary-soft);
}
.jump-row {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
}
.btn--on-soft { border-color: transparent; background: #FFFFFF; }

/* ---------- 3. 标签/胶囊行 ---------- */
.chip-row {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  justify-content: center;
}
.chip-link {
  background: var(--color-primary-soft);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
}
.chip-link img { width: 20px; height: 20px; display: inline; vertical-align: middle; }

/* ---------- 4. 业务横幅：统一标题层级与区块间距 ---------- */
.solu-banner { margin-bottom: var(--space-7); }
/* 字号按容器宽度收紧，保证长标题（如 AI 智能体矩阵）在移动端也能单行完整显示 */
.solu-banner h1 {
  font-size: clamp(20px, 3.2vw, 40px);
  font-weight: 800;
  letter-spacing: -0.4px;
  white-space: nowrap;
}

/* ---------- 5. CTA 通栏：眉标间距统一 ---------- */
.cta-band > .tag { margin-bottom: var(--space-4); }

/* ---------- 6. 案例卡左栏：正文色统一 ---------- */
.case-card .case-art p { color: #C7D6EC; }

/* ---------- 7. 表单：说明文字 / 必填标记 / 通栏按钮 ---------- */
.form-card .form-note {
  font-size: 14px;
  color: var(--color-text-2);
  margin-bottom: var(--space-5);
}
.field .req { color: #DC2626; }
.btn--block { width: 100%; }

/* ---------- 8. 子公司卡：主色变体 ---------- */
.branch-item--primary {
  background: linear-gradient(135deg, var(--color-primary-soft) 0%, #CFF2FF 100%);
  border-color: var(--color-primary);
}

/* ---------- 9. 空图框不占位（首页同款容器已隐藏，内页同步处理） ---------- */
.about-figure:empty { display: none; }

/* ---------- 10. 统一交互反馈：时长 / 缓动 / 位移量与首页一致 ---------- */
.card, .news-card, .ind-card, .culture-card, .honor-card,
.adv-card, .case-card, .branch-item, .feature-item, .contact-card, .solu-tile {
  transition: transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out);
}
.card:hover, .news-card:hover, .ind-card:hover, .culture-card:hover,
.honor-card:hover, .adv-card:hover, .case-card:hover, .branch-item:hover,
.feature-item:hover, .contact-card:hover, .solu-tile:hover {
  transform: translateY(calc(-1 * var(--lift)));
  box-shadow: var(--shadow-hover);
}

/* ---------- 11. 内页与首页的栅格节奏对齐 ---------- */
/* 首页 .about-grid 已定义 gap/对齐，内页复用同一类名即自动一致 */
.page-header .breadcrumb,
.page-header .eyebrow-chip,
.page-header h1,
.page-header p { max-width: var(--container-max); }

@media (max-width: 720px) {
  /* 移动端：内页页头按首页同比例缩小，避免头图过高 */
  .page-header { min-height: auto; }
}

/* ===============================================================
   ARTICLE DETAIL PAGE
   =============================================================== */

.article-detail { padding-top: 84px; /* 避让固定导航 */ }

.article-hero,
.article-hero-cover {
  position: relative;
  min-height: clamp(280px, 38vh, 420px);
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: flex-end;
  color: #FFFFFF;
}

.article-hero-cover .article-hero-scrim {
  position: absolute; inset: 0;
  background: linear-gradient(
    180deg,
    rgba(14, 42, 92, 0.25) 0%,
    rgba(14, 42, 92, 0.72) 100%
  );
}

.article-hero--no-cover {
  background: var(--gradient-hero);
}

.article-hero-inner {
  position: relative;
  z-index: 1;
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

.article-hero-inner .tag {
  margin-bottom: var(--space-3);
  border-color: rgba(255,255,255,0.45);
  color: #FFFFFF;
}

.article-hero-inner h1 {
  font-size: clamp(26px, 3.6vw, 42px);
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.25;
  margin-bottom: var(--space-3);
  max-width: 880px;
}

.article-hero-inner time {
  font-family: var(--font-en);
  font-size: 14px;
  letter-spacing: 1px;
  opacity: 0.85;
}

.article-body {
  padding-top: var(--space-8);
  padding-bottom: var(--space-9);
}

.article-content {
  max-width: 760px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text-1);
}

.article-content p,
.article-content ul,
.article-content ol {
  margin-bottom: var(--space-5);
}

.article-content ul,
.article-content ol {
  padding-left: 1.5em;
}

.article-content li { margin-bottom: var(--space-2); }

.article-content strong { color: var(--color-primary-deep); }

.article-actions {
  max-width: 760px;
  margin: var(--space-8) auto 0;
  padding-top: var(--space-6);
  border-top: 1px solid rgba(14, 42, 92, 0.08);
}

.article-empty {
  text-align: center;
  padding: var(--space-9) 0;
}

.article-empty h2 {
  font-size: 28px;
  margin-bottom: var(--space-3);
}

.article-empty p {
  color: var(--color-text-2);
  margin-bottom: var(--space-5);
}

@media (max-width: 720px) {
  .article-detail { padding-top: 64px; }
  .article-hero,
  .article-hero-cover { min-height: 240px; }
  .article-hero-inner h1 { font-size: 24px; }
  .article-content { font-size: 15px; }
}