/* ==========================================================================
   住宅公园 · 官网样式表
   --------------------------------------------------------------------------
   结构：
     1. 设计令牌 (Design Tokens)
     2. 基础与重置 (Reset & Base)
     3. 通用工具 (Utilities)
     4. 页头 (Header)
     5. 首屏轮播 (Hero)
     6. 公司介绍 (Intro)
     7. 三大业务 (Services)
     8. 创始人 (Founder)
     9. 建造科技 (Technology)
    10. 文章库 (Article Library)
    11. 页脚 (Footer)
    12. 响应式 (Responsive)
    13. 动效与无障碍 (Motion & A11y)
   ========================================================================== */

/* 1. 设计令牌 ============================================================= */
:root {
  /* 品牌色 */
  --ink: #29433e;           /* 深绿主色：暗色区块背景 / 正文文字 / 顶部描边 */
  --paper: #f2efe7;         /* 米白纸张底色 */
  --white: #fbfaf6;         /* 卡片白 */
  --orange: #ee5b36;        /* 品牌橙：强调色 */
  --lime: #badc5a;          /* 荧光绿：暗色区块上的点缀 */
  --muted: #687079;         /* 次级文字 */
  --line: #c9c7c0;          /* 分隔线 */

  /* 暗色区块（深绿主题）派生色 */
  --green-700: #35534d;     /* 卡片底色 */
  --green-hover: #242b31;   /* 卡片 hover（近黑） */
  --divider-dark: #3d444a;  /* 暗区块分隔线 */
  --divider-dark-2: #424a50;
  --text-dim: #aeb3b7;      /* 暗区块次级文字 */
  --text-dim-2: #d5d7d8;
  --text-dim-3: #9fa6ab;

  /* 品牌名文字 */
  --brand-red: #df634f;

  /* 排版 */
  --font-sans: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;

  /* 节奏 */
  --header-h: 76px;
  --pad-x: 7vw;
}

/* 2. 基础与重置 =========================================================== */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  /* 固定页头 + 锚点跳转时，给内容留出呼吸空间，避免标题被遮挡 */
  scroll-padding-top: calc(var(--header-h) + 16px);
  overflow-x: hidden;
  max-width: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
  max-width: 100%;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

h1 {
  font-size: clamp(48px, 6vw, 88px);
  line-height: 1.08;
  margin: 0 0 28px;
  font-weight: 850;
}

h2 {
  font-size: clamp(36px, 4.2vw, 64px);
  line-height: 1.16;
  margin: 18px 0;
}

::selection {
  background: var(--orange);
  color: #fff;
}

/* 3. 通用工具 ============================================================= */
.section-pad {
  padding: 72px var(--pad-x);
}

/* 精细化建筑级双语标牌系统（彻底替代原粗暴机械编号） */
.section-badge-plate {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 13px;
  line-height: 1.2;
  margin-bottom: 14px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  user-select: none;
}

.section-badge-plate:hover {
  transform: translateY(-1px);
}

.section-badge-plate .badge-dot {
  font-size: 11px;
  color: var(--orange);
  line-height: 1;
}

.section-badge-plate .badge-zh {
  font-weight: 850;
  letter-spacing: 0.06em;
}

.section-badge-plate .badge-sep {
  font-size: 11px;
  opacity: 0.35;
  font-weight: 300;
}

.section-badge-plate .badge-en {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* 深色背景下（核心业务等深翠底色） */
.section-badge-plate.dark {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.section-badge-plate.dark .badge-zh {
  color: #fff;
}

.section-badge-plate.dark .badge-sep {
  color: rgba(255, 255, 255, 0.4);
}

.section-badge-plate.dark .badge-en {
  color: var(--lime);
}

/* 浅色背景下（创始人、建造科技、公司介绍等宣纸白/暖灰底色） */
.section-badge-plate.light {
  background: #fff;
  border: 1px solid #ddd7ca;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
}

.section-badge-plate.light .badge-zh {
  color: var(--ink);
}

.section-badge-plate.light .badge-sep {
  color: rgba(41, 67, 62, 0.35);
}

.section-badge-plate.light .badge-en {
  color: #7b8584;
}

.section-label {
  font-size: 13px;
  font-weight: 850;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}

.section-label .label-sub {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: rgba(41, 67, 62, 0.45);
}

.section-label.light .label-sub {
  color: rgba(255, 255, 255, 0.45);
}

.section-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 34px;
  max-width: 880px;
}

.section-head h2 {
  font-size: clamp(28px, 3.2vw, 42px);
  line-height: 1.25;
  color: var(--ink);
  font-weight: 900;
  letter-spacing: -0.01em;
  margin: 0;
}

.section-head > p {
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 780px;
  margin: 0;
  letter-spacing: 0.01em;
}

/* 按钮 */
.button {
  min-height: 54px;
  padding: 0 24px;
  border: 0;
  border-radius: 2px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  font-weight: 800;
  transition: transform 0.2s ease, filter 0.2s ease, box-shadow 0.2s ease;
}

.button.primary {
  background: var(--orange);
  color: #fff;
}

.button.primary:hover {
  filter: brightness(0.96);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(238, 91, 54, 0.28);
}

.button:active {
  transform: translateY(0);
}

.text-link {
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}

/* 滚动进场动画（仅在 JS 可用时启用，见 .js 前缀） */
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.js .reveal.visible {
  opacity: 1;
  transform: none;
}

/* 4. 页头 ================================================================ */
.site-header {
  height: var(--header-h);
  padding: 0 var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(25, 42, 38, 0.76);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  transition: height 0.3s cubic-bezier(0.4, 0, 0.2, 1), background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
  height: 64px;
  background: rgba(20, 36, 32, 0.92);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 800;
  color: inherit;
}

.logo-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  overflow: hidden;
  flex: 0 0 auto;
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  transition: transform 0.25s ease;
}

.brand:hover .logo-mark {
  transform: scale(1.05);
}

.logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.brand-name {
  font-size: 22px;
  font-weight: 900;
  color: #fff;
  line-height: 1.1;
  letter-spacing: 0.04em;
}

.brand-sub {
  font-size: 11px;
  font-weight: 500;
  color: var(--lime);
  letter-spacing: 0.06em;
  line-height: 1.2;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.88);
}

@media (max-width: 1120px) and (min-width: 901px) {
  .desktop-nav {
    gap: 16px;
    font-size: 13px;
  }
}

.desktop-nav a {
  position: relative;
  padding: 6px 0;
  transition: color 0.2s ease;
}

.desktop-nav a:hover,
.desktop-nav a.active {
  color: #fff;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -2px;
  height: 2px;
  background: var(--orange);
  transition: right 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.desktop-nav a:hover::after,
.desktop-nav a.active::after,
.desktop-nav a:focus-visible::after {
  right: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.language-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.04em;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.language-toggle:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.6);
}

.language-option {
  opacity: 0.58;
  transition: opacity 0.2s ease, color 0.2s ease;
}

.language-option.active {
  opacity: 1;
  color: var(--lime);
}

.language-divider {
  opacity: 0.45;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  padding: 0 20px;
  border-radius: 999px;
  background: var(--orange);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.02em;
  transition: transform 0.2s ease, filter 0.2s ease, box-shadow 0.2s ease;
}

.header-cta:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(238, 91, 54, 0.38);
}

.menu-button,
.mobile-menu,
.mobile-menu-backdrop {
  display: none;
}

/* 5. 首屏轮播与建筑方案展厅 ============================================== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  height: 100vh;
  height: 100svh;
  color: #fff;
  overflow: hidden;
  padding-top: var(--header-h);
  display: flex;
  align-items: center;
  background: var(--ink);
}

.hero-slider {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 1.2s cubic-bezier(0.4, 0, 0.2, 1), visibility 1.2s;
  pointer-events: none;
}

.hero-slide.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 38%;
  transform: scale(1.05);
  filter: brightness(0.96) contrast(1.03);
  transition: transform 7s cubic-bezier(0.25, 1, 0.5, 1);
}

.hero-slide.active img {
  transform: scale(1);
}

/* 电影级柔和定向暗角与通透光晕（去除全图黑污，保护真实建筑采光） */
.hero-shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    /* 左侧文字区柔和定向遮罩：保障文字极端清晰可读，同时右侧与中轴建筑 100% 通透自然 */
    linear-gradient(
      90deg,
      rgba(13, 24, 21, 0.88) 0%,
      rgba(13, 24, 21, 0.74) 34%,
      rgba(13, 24, 21, 0.38) 54%,
      rgba(13, 24, 21, 0.08) 72%,
      transparent 100%
    ),
    /* 顶部导航通栏柔和遮阴 */
    linear-gradient(
      180deg,
      rgba(10, 18, 16, 0.6) 0%,
      rgba(10, 18, 16, 0.15) 14%,
      transparent 24%
    ),
    /* 建筑大片暗角氛围 */
    radial-gradient(
      ellipse at 78% 44%,
      transparent 50%,
      rgba(10, 18, 16, 0.32) 100%
    );
}

/* 底部柔和沉浸式渐变（消除突兀接缝切线，自然溶入核心业务墨绿色底布） */
.hero-bottom-fade {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 160px;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(19, 34, 30, 0.28) 35%,
    rgba(19, 34, 30, 0.82) 75%,
    var(--ink) 100%
  );
  pointer-events: none;
  z-index: 2;
}

/* 左侧品牌与核心主张 */
.hero-content {
  position: relative;
  z-index: 3;
  max-width: 680px;
  margin-left: var(--pad-x);
  padding: 28px 0;
}

/* 顶标高定品牌胶囊 */
.hero-brand-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  background: rgba(12, 26, 22, 0.36);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  margin-bottom: 22px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), 0 4px 16px rgba(0, 0, 0, 0.2);
}

.brand-pill-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 10px var(--lime);
  animation: pillPulse 2.4s ease-in-out infinite;
}

@keyframes pillPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(1.35); }
}

.brand-pill-title {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 800;
  font-size: 12.5px;
  color: #fff;
  letter-spacing: 0.06em;
}

.brand-pill-divider {
  color: rgba(255, 255, 255, 0.35);
  font-size: 11px;
}

.brand-pill-sub {
  color: rgba(255, 255, 255, 0.88);
  font-size: 12px;
  letter-spacing: 0.02em;
}

/* 核心主张标题 */
.hero-title {
  font-family: var(--font-title, system-ui);
  font-size: clamp(38px, 4.6vw, 60px);
  font-weight: 850;
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  color: #fff;
}

.hero-title .title-row {
  display: block;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.65), 0 1px 4px rgba(0, 0, 0, 0.9);
}

.hero-copy {
  font-size: clamp(15px, 1.25vw, 17px);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.88);
  max-width: 580px;
  margin: 0 0 32px;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.7);
}

/* 行动按钮群 */
.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 34px;
}

.hero-actions .button {
  min-height: 50px;
  padding: 0 24px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 750;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: transform 0.2s ease, filter 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.hero-btn-primary {
  background: var(--orange);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 6px 20px rgba(238, 91, 54, 0.4);
}

.hero-btn-primary:hover {
  background: #e24e28;
  filter: brightness(1.06);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(238, 91, 54, 0.55);
}

.hero-consult-trigger {
  background: rgba(14, 28, 24, 0.42);
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #fff;
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), 0 4px 16px rgba(0, 0, 0, 0.2);
}

.hero-consult-trigger:hover {
  background: rgba(20, 38, 33, 0.65);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), 0 8px 24px rgba(0, 0, 0, 0.28);
}

.btn-arrow,
.btn-chat {
  width: 15px;
  height: 15px;
  display: inline-block;
  transition: transform 0.2s ease;
}

.hero-actions .button:hover .btn-arrow {
  transform: translateX(3px);
}

/* 官方核心数据背书微标尺 */
.hero-proof-bar {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  padding: 12px 22px;
  background: rgba(12, 26, 22, 0.36);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 12px;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 12px 32px rgba(0, 0, 0, 0.24);
}

.proof-metric-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.metric-val {
  font-family: var(--font-title, system-ui);
  font-size: 20px;
  font-weight: 850;
  color: #fff;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.metric-val .metric-unit {
  color: var(--lime);
  font-size: 14px;
  font-weight: 700;
  margin-left: 2px;
}

.metric-tit {
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.02em;
  font-weight: 500;
}

.proof-bar-divider {
  width: 1px;
  height: 24px;
  background: rgba(255, 255, 255, 0.18);
}

/* 右下角：轻量化高定建筑展廊悬浮控制条（极简通透流线型设计，绝不遮挡主体画面） ===== */
.hero-showcase-dock {
  position: absolute;
  right: var(--pad-x);
  bottom: 34px;
  z-index: 4;
  max-width: calc(100vw - var(--pad-x) * 2);
}

.showcase-dock-plate {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding: 8px 14px 8px 18px;
  background: rgba(12, 26, 22, 0.38);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 12px 32px rgba(0, 0, 0, 0.24);
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.showcase-dock-plate:hover {
  background: rgba(14, 28, 24, 0.52);
  border-color: rgba(206, 210, 108, 0.4);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), 0 16px 36px rgba(0, 0, 0, 0.32);
}

/* 案例流线型元数据 */
.showcase-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.showcase-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  font-weight: 850;
  color: var(--lime);
  background: rgba(206, 210, 108, 0.14);
  border: 1px solid rgba(206, 210, 108, 0.28);
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.showcase-name {
  font-size: 15px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.showcase-divider {
  color: rgba(255, 255, 255, 0.25);
  font-size: 12px;
}

.showcase-tagline {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.72);
  letter-spacing: 0.01em;
  max-width: 250px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 交互控制组 */
.showcase-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 14px;
  border-left: 1px solid rgba(255, 255, 255, 0.15);
}

.showcase-arrow {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 0;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
  flex-shrink: 0;
}

.showcase-arrow:hover {
  background: rgba(255, 255, 255, 0.24);
  border-color: #fff;
  transform: scale(1.08);
}

.showcase-pills {
  display: flex;
  align-items: center;
  gap: 4px;
}

.showcase-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 11.5px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.showcase-pill .pill-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  transition: background 0.2s ease, transform 0.2s ease;
}

.showcase-pill:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}

.showcase-pill.active {
  background: rgba(206, 210, 108, 0.15);
  border-color: var(--lime);
  color: #fff;
}

.showcase-pill.active .pill-dot {
  background: var(--lime);
  box-shadow: 0 0 6px var(--lime);
  transform: scale(1.2);
}

.showcase-counter {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  font-weight: 750;
  color: rgba(255, 255, 255, 0.5);
  margin-left: 4px;
  white-space: nowrap;
}

.showcase-counter strong {
  color: var(--lime);
  font-size: 13.5px;
  font-weight: 850;
}

.showcase-counter i {
  font-style: normal;
  opacity: 0.4;
  margin: 0 2px;
}

@media (max-width: 1024px) {
  .hero {
    height: auto;
    min-height: 720px;
    padding-bottom: 50px;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
  }

  .hero-content {
    margin-left: 0;
    margin-right: 0;
    margin-top: 30px;
    margin-bottom: 16px;
    padding-left: 16px;
    padding-right: 16px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }

  .hero-showcase-dock {
    position: static;
    margin-left: 16px;
    margin-right: 16px;
    width: calc(100% - 32px);
    max-width: calc(100% - 32px);
    box-sizing: border-box;
  }

  .showcase-dock-plate {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
    border-radius: 14px;
    padding: 12px 16px;
    gap: 12px;
  }
}

@media (max-width: 640px) {
  .hero-brand-pill {
    padding: 5px 14px;
    margin-bottom: 16px;
    max-width: 100%;
    white-space: nowrap;
  }

  .hero-brand-pill .brand-pill-divider,
  .hero-brand-pill .brand-pill-sub {
    display: none;
  }

  .hero-title {
    font-size: 32px;
  }

  /* 消除移动端大图横向撑开溢出：采用 4:3 黄金视效比例，彻底解开 min-height 造成的宽度强制膨胀 */
  .build-feature-card,
  .training-feature-card {
    aspect-ratio: 4 / 3;
    min-height: 0;
    width: 100%;
    max-width: 100%;
  }

  .feature-overlay {
    padding: 22px 16px 14px;
    width: 100%;
    box-sizing: border-box;
  }

  .feature-overlay h4 {
    font-size: 16px;
    margin: 0 0 4px;
  }

  .feature-overlay p {
    font-size: 11.5px;
    line-height: 1.45;
    margin: 0 0 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .feature-overlay .case-tags em {
    font-size: 10px;
    padding: 2.5px 7px;
  }

  .founder-portrait-column {
    max-width: 320px;
    width: 100%;
    margin: 0 auto;
  }

  .hero-proof-bar {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 18px;
    width: 100%;
    box-sizing: border-box;
    margin-top: 14px;
    background: rgba(12, 26, 22, 0.38);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.22);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 12px 32px rgba(0, 0, 0, 0.24);
  }

  .proof-bar-divider {
    display: none;
  }

  .showcase-dock-plate {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    border-radius: 14px;
    background: rgba(12, 26, 22, 0.42);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.22);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 12px 32px rgba(0, 0, 0, 0.24);
  }

  .showcase-tagline {
    display: none;
  }

  .showcase-divider {
    display: none;
  }

  .showcase-controls {
    padding-left: 0;
    border-left: 0;
    width: 100%;
    justify-content: space-between;
  }
}

/* 6. 公司介绍 ============================================================ */
/* 6. 公司介绍（框选排版升级：核心定位陈述 + 三大指标框选卡片） ============= */
.intro {
  background: var(--paper);
}

.mobile-break {
  display: none;
}

@media (max-width: 768px) {
  .mobile-break {
    display: block;
  }
}

.intro-head {
  max-width: 1100px;
}

.intro-head h2,
.intro-headline {
  font-size: clamp(24px, 2.3vw, 36px);
  line-height: 1.35;
}

@media (min-width: 960px) {
  body:not(.lang-en) .intro-head h2,
  body:not(.lang-en) .intro-headline {
    white-space: nowrap;
  }
}

@media (max-width: 768px) {
  .intro-head h2,
  .intro-headline {
    font-size: clamp(20px, 5.2vw, 26px);
    line-height: 1.35;
    white-space: normal;
  }
}

.intro-framed-container {
  background: #fff;
  border: 1px solid #d9d4c7;
  border-radius: 12px;
  padding: 38px 36px;
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.04);
  margin-top: 16px;
}

.intro-brand-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-bottom: 20px;
  border-bottom: 1px solid #e7e3d8;
  margin-bottom: 24px;
}

.intro-brand-title {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
}

.intro-brand-name {
  font-size: 24px;
  font-weight: 900;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.intro-brand-en {
  font-size: 13px;
  font-weight: 850;
  color: #8c9394;
  letter-spacing: 0.08em;
}

.intro-brand-affiliation {
  font-size: 12px;
  font-weight: 750;
  color: var(--orange);
  background: rgba(238, 91, 54, 0.08);
  border: 1px solid rgba(238, 91, 54, 0.25);
  padding: 3px 10px;
  border-radius: 999px;
  margin-left: 4px;
}

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

.intro-tags span {
  font-size: 12px;
  font-weight: 700;
  color: var(--ink);
  background: #f3efe6;
  border: 1px solid #ded9cd;
  padding: 5px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

.intro-lead-box {
  background: #fbf9f4;
  border: 1px solid #e5e0d3;
  border-left: 4px solid var(--orange);
  border-radius: 8px;
  padding: 20px 24px;
  margin-bottom: 22px;
}

.intro-lead-box p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
  font-weight: 700;
  margin: 0;
  text-align: justify;
}

.intro-body-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: stretch;
}

.intro-body-col {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.intro-para-card {
  background: #faf8f5;
  border: 1px solid #e5e0d5;
  border-radius: 8px;
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.intro-para-card:hover {
  border-color: rgba(238, 91, 54, 0.4);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.04);
}

.para-card-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-weight: 850;
  color: var(--orange);
  letter-spacing: 0.04em;
}

.kicker-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--orange);
}

.intro-para-card p {
  font-size: 13.5px;
  line-height: 1.75;
  color: #4a5450;
  margin: 0;
  text-align: justify;
}

.framed-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 26px;
}

.intro-stat-grid {
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.framed-stat-card {
  background: #faf9f5;
  border: 1px solid #e0dcd0;
  border-radius: 12px;
  padding: 22px 18px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.framed-stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.08);
  border-color: var(--orange);
}

.stat-num-box {
  display: inline-flex;
  align-items: baseline;
  white-space: nowrap;
  flex-shrink: 0;
}

.stat-num-box strong,
.stat-num-box .stat-num {
  font-family: var(--font-title, system-ui);
  font-size: clamp(28px, 2.3vw, 36px);
  font-weight: 900;
  color: var(--ink);
  line-height: 1;
  white-space: nowrap;
  letter-spacing: -0.02em;
}

.stat-num-box span,
.stat-num-box .stat-unit {
  font-size: 14.5px;
  font-weight: 800;
  color: var(--orange);
  margin-left: 2px;
  white-space: nowrap;
}

.stat-content {
  min-width: 0;
  flex: 1;
}

.stat-content h4 {
  font-size: 15.5px;
  font-weight: 800;
  color: var(--ink);
  margin: 0 0 6px;
  white-space: normal;
  line-height: 1.35;
}

.stat-content p {
  font-size: 12px;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}

@media (max-width: 1240px) {
  .intro-stat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
}

@media (max-width: 640px) {
  .intro-stat-grid {
    grid-template-columns: 1fr;
  }
}

/* 7. 三大业务 ============================================================ */
.services {
  background: 
    /* 核心战略引言聚光灯：左侧大标题背后柔和橙金微光，强化视觉重心 */
    radial-gradient(circle 520px at 16% 220px, rgba(238, 91, 54, 0.07) 0%, transparent 70%),
    /* 右侧业务矩阵技术光晕：右侧导轨背后微弱青柠檬冷光 */
    radial-gradient(circle 480px at 84% 240px, rgba(206, 210, 108, 0.05) 0%, transparent 70%),
    /* 底层沉稳墨绿基底：与 Hero 底部及下方微弧 100% 同源纯净对接，彻底消除局部暗斑 */
    var(--ink);
  color: var(--white);
  position: relative;
  overflow: hidden;
  padding-top: 48px;
}

/* 建筑测绘经纬工程图与立面图纸水印背景容器 */
.services-blueprint-backdrop {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

/* 精密 CAD 测绘经纬微网格（与 Hero 底部 56px 网格 100% 轴网对齐贯通） */
.blueprint-grid-canvas {
  position: absolute;
  inset: 0;
  background-size: 56px 56px;
  background-position: center top;
  background-image: 
    linear-gradient(to right, rgba(206, 210, 108, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(206, 210, 108, 0.045) 1px, transparent 1px);
  mask-image: linear-gradient(180deg, black 0%, black 85%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, black 0%, black 85%, transparent 100%);
}

/* 现代乡村住宅全景建筑剖立面工程矢量线框图水印（居中通栏，静默烘托当代建筑工法） */
.blueprint-villa-svg {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 15px;
  width: min(1200px, 94vw);
  height: auto;
  color: #fff;
  opacity: 0.13;
  filter: drop-shadow(0 2px 10px rgba(0, 0, 0, 0.25));
  pointer-events: none;
  mask-image: radial-gradient(ellipse 90% 85% at 50% 50%, black 50%, rgba(0, 0, 0, 0.3) 80%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 85% at 50% 50%, black 50%, rgba(0, 0, 0, 0.3) 80%, transparent 100%);
}

/* 核心业务：双列战略引言格局 */
.services-lead-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 52px;
  align-items: flex-end;
  margin-bottom: 36px;
  position: relative;
  z-index: 2;
}

/* 左侧：建筑测绘基准标尺线与内容排版 */
.services-lead-left {
  position: relative;
  display: flex;
  gap: 20px;
  align-items: stretch;
}

/* 建筑测绘垂直基准标尺系统（取代普通无趣的边框线） */
.lead-datum-ruler {
  position: relative;
  width: 14px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  user-select: none;
}

.lead-datum-ruler .ruler-node {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 10px rgba(238, 91, 54, 0.8);
}

.lead-datum-ruler .ruler-stem {
  flex: 1;
  width: 2px;
  background: linear-gradient(180deg, var(--orange) 0%, rgba(206, 210, 108, 0.85) 45%, rgba(255, 255, 255, 0.12) 100%);
  margin: 3px 0;
}

.lead-datum-ruler .ruler-tick {
  position: absolute;
  left: 50%;
  width: 8px;
  height: 1px;
  background: rgba(206, 210, 108, 0.6);
  transform: translateX(-50%);
}

.lead-datum-ruler .ruler-tick.t1 { top: 32%; }
.lead-datum-ruler .ruler-tick.t2 { top: 68%; }

.lead-datum-ruler .ruler-node.bottom {
  background: var(--lime);
  box-shadow: 0 0 8px rgba(206, 210, 108, 0.7);
}

.lead-headline-wrap {
  flex: 1;
}

/* 微晶双语标牌补充样式 */
.badge-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 8px var(--lime);
  display: inline-block;
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.8); }
}



.services-headline {
  font-size: clamp(28px, 3.4vw, 44px);
  letter-spacing: -0.01em;
  font-weight: 900;
  color: #fff;
  line-height: 1.25;
  margin: 0;
}

/* 核心精工“3件事”数字高亮徽盘 */
.highlight-num-plate {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  padding: 0 4px;
  position: relative;
  white-space: nowrap;
}

.highlight-num-plate .num {
  font-size: 1.2em;
  font-weight: 950;
  font-family: inherit;
  background: linear-gradient(135deg, #ff8c6b 0%, #ee5b36 50%, #ffd066 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 4px 16px rgba(238, 91, 54, 0.45));
}

.highlight-num-plate .unit {
  font-size: 0.82em;
  font-weight: 850;
  color: #fff;
  letter-spacing: 0.02em;
}

.services-lead-desc {
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(242, 239, 231, 0.86);
  margin: 0 0 20px;
  letter-spacing: 0.01em;
}

/* 精工微晶三大业务联动导轨（结构化、高对比、立体卡片感） */
.services-quick-index {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 10px;
  background: rgba(18, 34, 30, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 14px;
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 12px 32px rgba(0, 0, 0, 0.25);
}

.quick-index-pill {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 6px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  color: #fff;
  text-decoration: none;
  transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.quick-index-pill::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(238, 91, 54, 0.15) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.quick-index-pill .pill-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.quick-index-pill .pill-num {
  font-size: 11px;
  font-weight: 900;
  color: #fff;
  background: var(--orange);
  padding: 2px 7px;
  border-radius: 6px;
  line-height: 1.2;
  box-shadow: 0 2px 6px rgba(238, 91, 54, 0.4);
}

.quick-index-pill .pill-tag {
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--lime);
  font-family: ui-monospace, SFMono-Regular, monospace;
}

.quick-index-pill .pill-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.quick-index-pill .pill-label {
  font-size: 13px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.quick-index-pill .pill-sub {
  font-size: 11px;
  color: rgba(242, 239, 231, 0.65);
  white-space: nowrap;
}

.quick-index-pill .pill-arrow {
  position: absolute;
  right: 10px;
  bottom: 10px;
  color: var(--lime);
  font-size: 13px;
  font-weight: 900;
  transition: transform 0.25s ease, color 0.25s ease;
  opacity: 0.8;
}

.quick-index-pill:hover {
  background: rgba(45, 78, 70, 0.85);
  border-color: rgba(238, 91, 54, 0.7);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.quick-index-pill:hover::before {
  opacity: 1;
}

.quick-index-pill:hover .pill-arrow {
  transform: translate(2px, 2px);
  color: var(--orange);
  opacity: 1;
}



/* 色块微弧自然过渡层系统（优雅自然弧线轮廓，弧内纯净无斑，与上下区块浑然一体） */
.color-transition-divider {
  width: 100%;
  line-height: 0;
  display: block;
  overflow: hidden;
  position: relative;
  z-index: 2;
  margin-top: -1px;
  margin-bottom: -1px;
}

.color-transition-divider.to-paper {
  background: var(--ink);
}

.color-transition-divider.to-ink {
  background: var(--paper);
}

.transition-curve-svg {
  width: 100%;
  height: clamp(36px, 4vw, 56px);
  display: block;
}

.color-transition-divider.to-paper .transition-curve-svg path {
  fill: var(--paper);
}

.color-transition-divider.to-ink .transition-curve-svg path {
  fill: var(--ink);
}

/* 业务战略总览与三大业务细化之间的建筑测绘极简基准过渡线（去文字纯净设计，留白透气） */
.services-chapter-divider {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 28px 0 24px;
  user-select: none;
}

.chapter-datum-line {
  width: 100%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(206, 210, 108, 0.08) 15%,
    rgba(206, 210, 108, 0.28) 50%,
    rgba(206, 210, 108, 0.08) 85%,
    transparent 100%
  );
  position: relative;
}

.chapter-datum-line::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lime);
  opacity: 0.65;
  box-shadow: 0 0 8px rgba(206, 210, 108, 0.7);
}

/* 业务列表主体容器 */
.service-list {
  position: relative;
  z-index: 2;
  border-top: none;
}

.service-block {
  padding: 38px 0 42px;
  border-bottom: 1px solid var(--divider-dark);
}

.service-block:last-child {
  border-bottom: 0;
}

/* 业务头部：序号与标题一体化，彻底消除空栏 */
.service-block-header {
  margin-bottom: 18px;
}

.service-meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.service-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px 5px 6px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.pill-track {
  font-size: 12px;
  font-weight: 850;
  color: #fff;
  background: var(--orange);
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  line-height: 1.2;
}

.pill-dot {
  color: rgba(255, 255, 255, 0.35);
  font-size: 12px;
}

.pill-en {
  font-size: 11.5px;
  font-weight: 800;
  color: var(--lime);
  letter-spacing: 0.08em;
}

.pill-sep {
  color: rgba(255, 255, 255, 0.25);
  font-size: 11px;
}

.pill-zh {
  font-size: 12.5px;
  font-weight: 750;
  color: #fff;
}

.service-title-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 4px;
}

.service-title-row h3 {
  font-size: clamp(24px, 2.3vw, 36px);
  line-height: 1.25;
  margin: 0;
  color: #fff;
  font-weight: 850;
  letter-spacing: -0.01em;
  white-space: normal;
}

.service-title-row p {
  font-size: 15px;
  color: rgba(242, 239, 231, 0.82);
  line-height: 1.75;
  margin: 0;
  max-width: 820px;
  letter-spacing: 0.01em;
}

.service-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.service-highlights span {
  font-size: 12.5px;
  color: rgba(242, 239, 231, 0.9);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 5px 14px;
  border-radius: 999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.build-options-row {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.build-options-row li {
  font-size: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 6px 14px;
  border-radius: 6px;
  display: flex;
  gap: 8px;
  align-items: center;
}

.build-options-row strong {
  color: var(--orange);
  font-size: 11px;
}

.build-options-row span {
  color: var(--text-dim-2);
}

/* 业务 01：三列自建房设计案例展廊（彻底消除单侧断崖与过长脱轨） */
.design-showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.design-card {
  background: var(--green-700);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.design-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
  border-color: rgba(238, 91, 54, 0.35);
}

.design-card-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #1b2724;
}

.design-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.2, 0.9, 0.3, 1);
}

.design-card:hover .design-card-media img {
  transform: scale(1.05);
}

.case-code {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 10px;
  font-weight: 800;
  background: rgba(12, 24, 21, 0.62);
  backdrop-filter: blur(8px) saturate(150%);
  -webkit-backdrop-filter: blur(8px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  color: var(--lime);
  padding: 3px 8px;
  border-radius: 4px;
}

.design-card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.design-card-body h4 {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  margin: 0 0 8px;
}

.design-card-body p {
  font-size: 12.5px;
  color: var(--text-dim);
  line-height: 1.55;
  margin: 0 0 16px;
  flex: 1;
}

.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.case-tags em {
  font-style: normal;
  font-size: 10px;
  color: var(--text-dim-2);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 3px 7px;
  border-radius: 3px;
}

/* 全站大图查看与放大镜交互 */
[data-lightbox] {
  cursor: zoom-in;
}

.zoom-indicator {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 5;
  background: rgba(12, 24, 21, 0.58);
  color: #fff;
  font-size: 11px;
  font-weight: 750;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
  backdrop-filter: blur(10px) saturate(160%);
  -webkit-backdrop-filter: blur(10px) saturate(160%);
}

[data-lightbox]:hover .zoom-indicator {
  opacity: 1;
  transform: translateY(0);
}

/* 业务 02：施工落地展廊比例深度调校（彻底根治截区过大与切顶，支持点击放大） */
.build-showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
  align-items: stretch;
}

.build-feature-card {
  border-radius: 8px;
  overflow: hidden;
  background: var(--green-700);
  border: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  min-height: 0;
  aspect-ratio: 16 / 11;
  display: flex;
}

.build-feature-media {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.build-feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  min-height: 0;
  transition: transform 0.5s ease;
}

.build-feature-card:hover .build-feature-media img {
  transform: scale(1.035);
}

.feature-overlay {
  position: absolute;
  inset: auto 0 0;
  padding: 30px 22px 20px;
  background: linear-gradient(to top, rgba(13, 22, 20, 0.95) 0%, rgba(13, 22, 20, 0.7) 60%, transparent 100%);
  pointer-events: none;
}

.feature-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 800;
  color: var(--lime);
  margin-bottom: 6px;
}

.feature-overlay h4 {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  margin: 0 0 6px;
}

.feature-overlay p {
  font-size: 12px;
  color: var(--text-dim-2);
  margin: 0 0 10px;
  line-height: 1.5;
}

.build-quad-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  height: 100%;
  aspect-ratio: 16 / 11;
}

.build-quad-gallery figure {
  position: relative;
  margin: 0;
  border-radius: 6px;
  overflow: hidden;
  background: #252c32;
  border: 1px solid rgba(255, 255, 255, 0.08);
  min-height: 0;
}

.build-quad-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

/* 针对各实景图精确设置对齐焦点，完整显示坡屋顶、立面与夜景 */
.build-quad-gallery figure:nth-child(1) img {
  object-position: center 18%; /* BUILD 02 坡屋顶与上层立面完整显示 */
}

.build-quad-gallery figure:nth-child(2) img {
  object-position: center 25%; /* BUILD 03 双层住宅夜景完整 */
}

.build-quad-gallery figure:nth-child(3) img {
  object-position: center 40%;
}

.build-quad-gallery figure:nth-child(4) img {
  object-position: center 30%;
}

.build-quad-gallery figure:hover img {
  transform: scale(1.04);
}

.build-quad-gallery figcaption {
  position: absolute;
  inset: auto 0 0;
  padding: 24px 12px 10px;
  background: linear-gradient(transparent, rgba(13, 17, 20, 0.9));
  color: #fff;
  pointer-events: none;
}

.build-quad-gallery figcaption span {
  display: block;
  color: var(--lime);
  font-size: 9px;
  font-weight: 800;
}

.build-quad-gallery figcaption strong {
  display: block;
  font-size: 12px;
  font-weight: 700;
}

/* 业务 03：培训展廊比例深度调校（展示完整参训全景与投影，支持点击放大） */
.training-showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
  align-items: stretch;
}

.training-feature-card {
  border-radius: 8px;
  overflow: hidden;
  background: var(--green-700);
  border: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  min-height: 0;
  aspect-ratio: 16 / 11;
  display: flex;
}

.training-feature-media {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.training-feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 32%;
  min-height: 0;
  transition: transform 0.5s ease;
}

.training-feature-card:hover .training-feature-media img {
  transform: scale(1.035);
}

.training-dual-gallery {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 12px;
  height: 100%;
  aspect-ratio: 16 / 11;
}

.training-dual-gallery figure {
  position: relative;
  margin: 0;
  border-radius: 6px;
  overflow: hidden;
  background: #252c32;
  border: 1px solid rgba(255, 255, 255, 0.08);
  min-height: 0;
}

.training-dual-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

/* 针对培训照片调整焦点：ACADEMY 02 聚焦长桌参训人员而不是地毯与外套 */
.training-dual-gallery figure:nth-child(1) img {
  object-position: center 22%;
}

/* ACADEMY 03 聚焦讲台投影与研讨现场 */
.training-dual-gallery figure:nth-child(2) img {
  object-position: center 32%;
}

.training-dual-gallery figure:hover img {
  transform: scale(1.04);
}

.training-dual-gallery figcaption {
  position: absolute;
  inset: auto 0 0;
  padding: 24px 12px 10px;
  background: linear-gradient(transparent, rgba(13, 17, 20, 0.9));
  color: #fff;
  pointer-events: none;
}

.training-dual-gallery figcaption span {
  display: block;
  color: var(--lime);
  font-size: 9px;
  font-weight: 800;
}

.training-dual-gallery figcaption strong {
  display: block;
  font-size: 12px;
  font-weight: 700;
}

/* 底部专属咨询条 (Action Bar) */
.service-action-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 24px;
  padding: 16px 24px;
  background: var(--green-700);
  border: 1px solid var(--divider-dark-2);
  border-radius: 8px;
}

.action-bar-qr {
  width: 72px;
  height: 72px;
  background: #fff;
  padding: 4px;
  border-radius: 6px;
  flex-shrink: 0;
}

.action-bar-qr img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.action-bar-info {
  flex: 1;
  text-align: left;
}

.action-bar-info strong {
  display: block;
  font-size: 15px;
  color: #fff;
  margin-bottom: 4px;
}

.action-bar-info p {
  font-size: 12.5px;
  color: var(--text-dim-3);
  margin: 0;
  line-height: 1.5;
}

.action-bar-cta {
  flex-shrink: 0;
}

.action-bar-cta .button {
  min-height: 42px;
  padding: 0 20px;
  font-size: 13px;
  font-weight: 750;
}

/* 8. 创始人 ============================================================== */
.team {
  background: var(--paper);
}

.team-head > p {
  color: var(--muted);
}

.founder-master-profile {
  background: #fff;
  border: 1px solid #d9d4c7;
  border-radius: 12px;
  padding: 36px 40px;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.05);
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 40px;
  align-items: flex-start;
}

.founder-portrait-column {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.founder-photo-mat {
  background: #f7f5ef;
  border: 1.5px solid #dfdacd;
  border-radius: 8px;
  padding: 12px;
  position: relative;
  cursor: zoom-in;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.04);
}

.photo-inner-frame {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  aspect-ratio: 4 / 4.5;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: #fff;
}

.photo-inner-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 12%;
  transition: transform 0.5s ease;
}

.founder-photo-mat:hover .photo-inner-frame img {
  transform: scale(1.03);
}

.photo-zoom-tag {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(14, 28, 24, 0.58);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  backdrop-filter: blur(10px) saturate(160%);
  -webkit-backdrop-filter: blur(10px) saturate(160%);
  border: 1px solid rgba(255, 255, 255, 0.25);
  transition: background 0.2s ease;
}

.founder-photo-mat:hover .photo-zoom-tag {
  background: var(--orange);
}

.portrait-caption-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 750;
  color: var(--forest);
  background: rgba(30, 77, 43, 0.08);
  border: 1px solid rgba(30, 77, 43, 0.15);
  border-radius: 6px;
  padding: 8px 12px;
}

.caption-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--forest);
}

.founder-content-column {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.founder-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 2px solid var(--orange);
  padding-bottom: 14px;
}

.founder-identity {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.founder-name-group {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.founder-zh-name {
  font-size: 28px;
  font-weight: 900;
  color: var(--ink);
  line-height: 1.1;
}

.founder-en-name {
  font-size: 11.5px;
  font-weight: 800;
  color: #8e9596;
  letter-spacing: 0.1em;
}

.founder-role-badge {
  font-size: 11px;
  font-weight: 850;
  color: var(--orange);
  background: rgba(238, 91, 54, 0.1);
  border: 1px solid rgba(238, 91, 54, 0.3);
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.06em;
}

.founder-titles {
  font-size: 13.5px;
  font-weight: 750;
  color: var(--ink);
  line-height: 1.5;
  margin: 0;
}

/* 精练创始人寄语标语块 */
.founder-quote-banner {
  background: #0f231e;
  color: #fff;
  border-radius: 8px;
  padding: 16px 20px;
  border-left: 4px solid var(--orange);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.quote-banner-head {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}

.quote-kicker-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 6px var(--orange);
}

.quote-kicker-text {
  font-size: 10.5px;
  font-weight: 850;
  color: var(--lime);
  letter-spacing: 0.1em;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.quote-banner-content {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  font-weight: 700;
  color: #f2efe7;
  font-style: normal;
}

.founder-bio-prose {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 13.5px;
  line-height: 1.8;
  color: #4b5563;
}

.founder-bio-prose p {
  margin: 0;
  text-align: justify;
}

.founder-philosophy-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  border-top: 1px solid #e8e4dc;
  padding-top: 14px;
  margin-top: 2px;
}

.founder-philosophy-pills span {
  font-size: 11.5px;
  font-weight: 750;
  color: var(--forest);
  background: #f0f7f3;
  border: 1px solid #c7e6d4;
  padding: 5px 12px;
  border-radius: 4px;
  white-space: nowrap;
}

.team-trust-bar {
  margin-top: 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 22px;
  background: #faf9f5;
  border: 1px solid #e2ded5;
  border-radius: 8px;
}

.trust-bar-icon {
  font-size: 22px;
  flex-shrink: 0;
}

.trust-bar-text {
  font-size: 13px;
  color: #586161;
  margin: 0;
  line-height: 1.6;
}

/* 9. 建造科技 ============================================================ */
.technology {
  background: #e8e4dc;
}

.technology-head > p {
  color: var(--muted);
}

.technology-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

/* 科技板块 2+1 结构（上层双列等高创意+BIM，下层全宽国家专利荣誉墙） */
.tech-dual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: stretch;
}

.tech-dual-card {
  background: var(--white);
  border: 1px solid #dcd7ca;
  border-top: 3px solid var(--ink);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
}

.tech-dual-card .technology-copy {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 32px;
}

.tech-dual-card .technology-copy > span:not(.technology-read-link) {
  min-height: 48px;
  margin-bottom: 18px;
}

.tech-modules-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 20px;
}

.tech-module-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #f4f2ea;
  border: 1px solid #e2ddd0;
  border-radius: 6px;
  padding: 10px 12px;
}

.tech-module-pill strong {
  font-size: 15px;
  font-weight: 900;
  color: var(--orange);
  line-height: 1;
}

.tech-module-pill b {
  display: block;
  font-size: 11.5px;
  font-weight: 750;
  color: var(--ink);
  line-height: 1.35;
}

.tech-module-pill small {
  display: block;
  font-size: 10px;
  color: var(--muted);
  margin-top: 2px;
  font-family: monospace;
}

.technology-read-btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  box-sizing: border-box;
  padding: 12px 18px;
  font-size: 13px;
  font-weight: 800;
  margin-top: auto;
  border-radius: 4px;
}

/* 下层：全宽横向国家资质与专利著作权荣誉展廊（支持循环滚动与左右拓展） */
.cert-honor-wall {
  margin-top: 22px;
  background: #fff;
  border: 1px solid #dcd7ca;
  border-radius: 12px;
  padding: 28px 24px 20px;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.04);
}

.cert-honor-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  border-bottom: 1px solid #e7e3d8;
  padding-bottom: 16px;
  margin-bottom: 16px;
  gap: 20px;
}

.cert-honor-kicker {
  display: block;
  font-size: 10.5px;
  font-weight: 850;
  color: var(--orange);
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.cert-honor-title-group h3 {
  font-size: 24px;
  font-weight: 850;
  color: var(--ink);
  margin: 0 0 6px;
}

.cert-honor-title-group p {
  font-size: 13.5px;
  color: var(--muted);
  margin: 0;
}

.cert-honor-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.cert-honor-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #f7f5ef;
  border: 1px solid #dfdacd;
  padding: 8px 16px;
  border-radius: 8px;
}

.cert-shield-icon {
  font-size: 22px;
}

.cert-honor-badge strong {
  display: block;
  font-size: 12px;
  font-weight: 800;
  color: var(--ink);
}

.cert-honor-badge small {
  display: block;
  font-size: 10.5px;
  color: #6d7578;
}

/* 证书无限循环展区（左右侧浮动导航控制） */
.cert-marquee-stage {
  position: relative;
  width: 100%;
}

.cert-rail-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 15;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(220, 215, 202, 0.95);
  background: rgba(255, 255, 255, 0.96);
  color: var(--ink);
  font-size: 26px;
  line-height: 1;
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
}

.cert-rail-prev {
  left: 10px;
}

.cert-rail-next {
  right: 10px;
}

.cert-rail-arrow:hover {
  background: var(--orange);
  color: #fff;
  border-color: var(--orange);
  transform: translateY(-50%) scale(1.1);
  box-shadow: 0 8px 24px rgba(238, 91, 54, 0.38);
}

.cert-rail-arrow:active {
  transform: translateY(-50%) scale(0.96);
}

/* 证书无限无缝循环跑马灯容器（带左右渐隐边缘遮罩） */
.cert-marquee-container {
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  position: relative;
  width: 100%;
  padding: 8px 4px 14px;
  cursor: grab;
  mask-image: linear-gradient(90deg, transparent 0%, black 28px, black calc(100% - 28px), transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 28px, black calc(100% - 28px), transparent 100%);
}

.cert-marquee-container::-webkit-scrollbar {
  display: none;
}

.cert-marquee-container:active {
  cursor: grabbing;
}

.cert-marquee-track {
  display: flex;
  gap: 18px;
  width: max-content;
  align-items: stretch;
}

.cert-marquee-track .cert-frame-item {
  flex: 0 0 250px;
  width: 250px;
  background: #faf9f6;
  border: 1px solid #ded9cd;
  border-radius: 8px;
  padding: 9px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
}

.cert-marquee-track .cert-frame-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
  border-color: var(--orange);
}

.cert-thumb-box {
  position: relative;
  aspect-ratio: 3 / 3.8;
  border-radius: 4px;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.cert-thumb-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.4s ease;
}

.cert-frame-item:hover .cert-thumb-box img {
  transform: scale(1.05);
}

.cert-zoom-tag {
  position: absolute;
  top: 6px;
  right: 6px;
  background: rgba(20, 36, 32, 0.82);
  color: #fff;
  font-size: 10px;
  padding: 3px 6px;
  border-radius: 4px;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.cert-frame-item:hover .cert-zoom-tag {
  opacity: 1;
}

.cert-info-box {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
}

.cert-info-box b {
  font-size: 11.5px;
  font-weight: 750;
  color: var(--ink);
  line-height: 1.35;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cert-code {
  display: block;
  font-size: 9.5px;
  color: #8c9396;
  font-family: monospace;
}

.cert-pdf-link {
  font-size: 10.5px;
  color: var(--orange);
  font-weight: 750;
  text-decoration: none;
  align-self: flex-start;
  margin-top: auto;
  padding-top: 4px;
  transition: color 0.2s ease;
}

.cert-pdf-link:hover {
  color: #d1421f;
  text-decoration: underline;
}

/* 荣誉墙底部：状态与说明 */
.cert-honor-footer {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed #e2ddd0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.cert-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  color: #5c6467;
  background: #f4f2ea;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid #e2ddd0;
}

.status-pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulseGreen 2s infinite;
}

@keyframes pulseGreen {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

.cert-note-text {
  font-size: 11.5px;
  color: var(--muted);
  margin: 0;
}

.technology-item {
  background: var(--white);
  border-top: 3px solid var(--ink);
}

.technology-media {
  height: 300px;
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  background: #cfd7d6;
}

.technology-copy {
  padding: 32px;
}

.technology-copy > p {
  font-size: 9px;
  color: var(--orange);
  font-weight: 800;
  margin: 0;
}

.technology-copy h3 {
  font-size: 34px;
  margin: 7px 0;
}

.technology-copy > strong {
  display: block;
  font-size: 17px;
  margin-bottom: 14px;
}

/* 描述文字（排除「阅读链接」这类按钮式 span） */
.technology-copy > span:not(.technology-read-link) {
  display: block;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  min-height: 76px;
}

.technology-copy ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  border-top: 1px solid var(--line);
  margin-top: auto;
  margin-bottom: 0;
  margin-left: 0;
  margin-right: 0;
  padding: 18px 0 0;
}

.technology-copy li {
  font-size: 11px;
  font-weight: 700;
}

.technology-copy li::before {
  content: "+ ";
  color: var(--orange);
}

.media-status {
  position: absolute;
  left: 18px;
  bottom: 16px;
  background: var(--ink);
  color: #fff;
  padding: 6px 10px;
  font-size: 10px;
  font-weight: 700;
}

/* 建筑创意（未来别墅 3D 概念漫游视觉展示） */
.future-media {
  background: #142421;
}

.future-concept-display {
  position: relative;
  overflow: hidden;
  height: 240px;
  background: #142421;
}

.concept-cover-bg {
  position: absolute;
  inset: 0;
}

.concept-cover-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.68) saturate(1.1) contrast(1.08);
  transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1), filter 0.4s ease;
}

.tech-dual-card:hover .concept-cover-bg img {
  transform: scale(1.06);
  filter: brightness(0.78) saturate(1.15) contrast(1.1);
}

.concept-hud-grid {
  position: absolute;
  inset: 0;
  background-size: 28px 28px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  pointer-events: none;
}

.concept-player-badge {
  position: absolute;
  left: 20px;
  bottom: 20px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(18, 32, 28, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  padding: 8px 18px 8px 10px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.tech-dual-card:hover .concept-player-badge {
  background: rgba(22, 40, 35, 0.92);
  border-color: rgba(238, 91, 54, 0.6);
  transform: translateY(-2px);
}

.player-icon-pulse {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--orange);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 14px;
  padding-left: 2px;
  box-shadow: 0 0 18px rgba(238, 91, 54, 0.55);
  transition: transform 0.25s ease;
}

.tech-dual-card:hover .player-icon-pulse {
  transform: scale(1.08);
}

.player-text-group strong {
  display: block;
  font-size: 13.5px;
  font-weight: 800;
  color: #fff;
  line-height: 1.25;
}

.player-text-group small {
  display: block;
  font-size: 11px;
  color: var(--lime);
  margin-top: 2px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.concept-corner-meta {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  display: flex;
  gap: 8px;
}

.hud-pill {
  font-size: 10.5px;
  font-weight: 750;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(15, 28, 25, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  padding: 4px 8px;
  backdrop-filter: blur(8px);
  letter-spacing: 0.02em;
}

/* 专利与著作权 */
.rights-media {
  background: var(--ink);
}

.certificate-stack {
  width: 180px;
  height: 210px;
  position: relative;
}

.certificate-stack i {
  position: absolute;
  inset: 0;
  background: var(--paper);
  border: 8px solid #fff;
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.25);
}

.certificate-stack i:first-child {
  transform: rotate(-8deg) translate(-18px, 7px);
  opacity: 0.55;
}

.certificate-stack i:nth-child(2) {
  transform: rotate(5deg) translate(15px, 3px);
  opacity: 0.75;
}

.certificate-stack strong {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--orange);
  font-size: 56px;
  z-index: 2;
}

.certificate-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}

.cert-frame-item {
  display: flex;
  flex-direction: column;
  background: #faf9f6;
  border: 1px solid #ded9cd;
  border-radius: 8px;
  padding: 8px;
  cursor: zoom-in;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
}

.cert-frame-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
  border-color: var(--orange);
}

.cert-thumb-box {
  position: relative;
  aspect-ratio: 3 / 3.8;
  border-radius: 4px;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.cert-thumb-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.4s ease;
}

.cert-frame-item:hover .cert-thumb-box img {
  transform: scale(1.05);
}

.cert-zoom-tag {
  position: absolute;
  top: 6px;
  right: 6px;
  background: rgba(20, 36, 32, 0.82);
  color: #fff;
  font-size: 10px;
  padding: 3px 6px;
  border-radius: 4px;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.cert-frame-item:hover .cert-zoom-tag {
  opacity: 1;
}

.cert-info-box {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cert-info-box b {
  font-size: 11px;
  font-weight: 750;
  color: var(--ink);
  line-height: 1.35;
}

.cert-pdf-link {
  font-size: 10.5px;
  color: var(--orange);
  font-weight: 750;
  text-decoration: none;
  align-self: flex-start;
  transition: color 0.2s ease;
}

.cert-pdf-link:hover {
  color: #d1421f;
  text-decoration: underline;
}

.certificate-strip {
  display: flex;
  gap: 8px;
  margin-top: 14px;
  overflow: hidden;
}

.certificate-strip figure {
  margin: 0;
  width: calc((100% - 16px) / 3);
  height: 72px;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid #ded9cd;
  background: #faf9f6;
  position: relative;
  cursor: zoom-in;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.certificate-strip figure:hover {
  transform: translateY(-2px);
  border-color: var(--orange);
}

.certificate-strip img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.3s ease;
}

.certificate-strip figure:hover img {
  transform: scale(1.08);
}

.technology-copy .certificate-gallery + .certificate-strip {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

/* 视频链接列表 */
.video-list {
  display: grid;
  gap: 8px;
  margin-top: 20px;
}

.video-link {
  display: grid;
  grid-template-columns: 38px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 13px 14px;
  background: var(--green-700);
  color: #fff;
  border-left: 3px solid var(--orange);
  transition: transform 0.2s ease, background 0.2s ease;
}

.video-link:hover {
  transform: translateY(-2px);
  background: var(--green-hover);
}

.video-link i {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid #60676c;
  border-radius: 50%;
  font-style: normal;
  font-size: 11px;
}

.video-link b {
  font-size: 13px;
}

.video-link small {
  font-size: 10px;
  color: var(--lime);
  white-space: nowrap;
}

/* 文章卡片 */
.technology-article-card {
  min-width: 0;
}

.technology-card-link {
  display: block;
  height: 100%;
  color: inherit;
}

.technology-card-link:hover .article-media {
  background: var(--green-700);
}

.article-media {
  background: var(--ink);
  transition: background 0.25s ease;
}

/* 科技卡片 02：智建通 BIM 全生命周期平台（数字化孪生控制台界面） */
.bim-console-display {
  position: relative;
  overflow: hidden;
  height: 240px;
  background: #0d1816;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px;
  box-sizing: border-box;
}

.bim-cover-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.bim-cover-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 38%;
  filter: grayscale(0.85) contrast(1.4) brightness(0.26) sepia(0.3) hue-rotate(95deg);
  transform: scale(1.04);
  transition: transform 0.6s ease;
}

.tech-dual-card:hover .bim-cover-bg img {
  transform: scale(1.08);
}

.bim-shader-overlay {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 90% 80% at 50% 40%, rgba(20, 42, 36, 0.4) 0%, rgba(13, 24, 22, 0.92) 85%),
    linear-gradient(180deg, rgba(13, 24, 22, 0.25) 0%, rgba(13, 24, 22, 0.88) 100%);
}

.bim-hologram-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  color: var(--lime);
  pointer-events: none;
  filter: drop-shadow(0 0 5px rgba(206, 210, 108, 0.45));
  z-index: 1;
}

.bim-grid-canvas {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.bim-grid-canvas::before {
  content: "";
  position: absolute;
  inset: 0;
  background-size: 32px 32px;
  background-image: 
    linear-gradient(to right, rgba(206, 210, 108, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(206, 210, 108, 0.06) 1px, transparent 1px);
}

.bim-cad-header {
  position: absolute;
  top: 10px;
  left: 14px;
  right: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 2;
  pointer-events: none;
}

.bim-cad-tag {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9.5px;
  font-weight: 800;
  color: var(--lime);
  letter-spacing: 0.08em;
  opacity: 0.85;
  background: rgba(8, 18, 15, 0.65);
  padding: 3px 8px;
  border-radius: 4px;
  backdrop-filter: blur(6px);
  border: 1px solid rgba(206, 210, 108, 0.2);
}

.bim-scan-beam {
  position: absolute;
  left: -20%;
  right: -20%;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--lime), #fff, var(--lime), transparent);
  box-shadow: 0 0 10px var(--lime);
  animation: bimScanPulse 3.5s ease-in-out infinite;
}

@keyframes bimScanPulse {
  0% { top: 0%; opacity: 0; }
  15% { opacity: 1; }
  85% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

.bim-cad-baseline {
  position: absolute;
  bottom: 8px;
  left: 14px;
  right: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9px;
  color: rgba(206, 210, 108, 0.7);
  z-index: 2;
  pointer-events: none;
  border-top: 1px dashed rgba(206, 210, 108, 0.25);
  padding-top: 6px;
}

.cad-datum-chip {
  color: #34d399;
  font-weight: 800;
  letter-spacing: 0.05em;
}

.technology-read-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  color: var(--orange);
  font-size: 12px;
  font-weight: 800;
}

.technology-read-link b {
  font-size: 15px;
}

.technology-note {
  margin-top: 22px;
  border-top: 1px solid var(--line);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
}

.technology-note span {
  font-size: 11px;
  color: var(--orange);
  font-weight: 800;
}

.technology-note p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

/* 10. 建造科技技术白皮书与文章库 ==================================== */
.article-page {
  background: #f7f6f2;
}

.tech-whitepaper-page {
  padding: 124px var(--pad-x, 24px) 80px;
  min-height: 100vh;
}

.tech-whitepaper-container {
  max-width: 1040px;
  margin: 0 auto;
}

/* 顶部紧凑面包屑与身份栏 */
.whitepaper-breadcrumb {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.back-link-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 750;
  color: var(--ink);
  padding: 8px 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: all 0.2s ease;
  text-decoration: none;
}

.back-link-pill:hover {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.whitepaper-doc-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 800;
  color: var(--forest);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.06em;
  padding: 6px 14px;
  background: rgba(30, 77, 43, 0.08);
  border-radius: 999px;
}

/* 白皮书主标题区（居中紧凑级联流，彻底消弭撕扯与空洞） */
.whitepaper-hero-header {
  padding: 36px 0 32px;
  border-bottom: 2px solid var(--ink);
}

.whitepaper-kicker {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 11px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.kicker-tag {
  color: var(--orange);
  font-weight: 800;
}

.kicker-date {
  color: var(--muted);
}

.whitepaper-title {
  font-size: clamp(28px, 3.6vw, 44px);
  font-weight: 850;
  line-height: 1.22;
  color: var(--ink);
  margin: 0 0 10px;
}

.whitepaper-subtitle {
  font-size: 0.65em;
  font-weight: 650;
  color: var(--muted);
  display: block;
  margin-top: 6px;
}

.whitepaper-en-title {
  font-size: 14.5px;
  font-weight: 600;
  color: #55605b;
  font-style: italic;
  margin: 0 0 22px;
  line-height: 1.5;
}

.whitepaper-lead-quote {
  background: #fff;
  border-left: 4px solid var(--forest);
  border-radius: 0 8px 8px 0;
  padding: 18px 24px;
  margin: 0 0 24px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.whitepaper-lead-quote p {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
  margin: 0;
}

/* 权威元数据与原档下载栏 */
.whitepaper-meta-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding: 18px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.meta-specs {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.meta-label {
  font-size: 11px;
  color: var(--muted);
  font-weight: 650;
}

.meta-value {
  font-size: 13px;
  font-weight: 750;
  color: var(--ink);
}

.download-docx-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 750;
  padding: 10px 18px;
  text-decoration: none;
}

/* 白皮书正文容器与章节卡片 */
.whitepaper-article-body {
  padding: 36px 0 0;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.whitepaper-section {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 36px 40px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.02);
}

.section-title-plate {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.chapter-number {
  font-size: 28px;
  font-weight: 900;
  color: var(--forest);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  line-height: 1;
  padding: 6px 12px;
  background: rgba(30, 77, 43, 0.08);
  border-radius: 6px;
}

.section-title-plate h2 {
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
  margin: 0 0 4px;
  line-height: 1.3;
}

.en-sub {
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  font-style: italic;
  margin-left: 6px;
}

.section-tagline {
  font-size: 12.5px;
  color: var(--orange);
  font-weight: 700;
  display: block;
}

.section-prose p {
  font-size: 15px;
  line-height: 1.85;
  color: #374151;
  margin: 0 0 14px;
}

.section-prose p:last-child {
  margin-bottom: 0;
}

.section-lead-text {
  font-size: 15px;
  line-height: 1.8;
  color: #374151;
  margin: 0 0 22px;
}

/* 痛点 vs 解法对比栅格 */
.painpoints-vs-solutions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 22px;
}

.comparison-col {
  padding: 20px 22px;
  border-radius: 8px;
}

.comparison-col.pain {
  background: #fdf5f5;
  border: 1px solid #fed7d7;
}

.comparison-col.solution {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
}

.comparison-col h4 {
  font-size: 14.5px;
  font-weight: 800;
  margin: 0 0 12px;
}

.comparison-col.pain h4 {
  color: #c53030;
}

.comparison-col.solution h4 {
  color: #166534;
}

.comparison-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.comparison-col li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  line-height: 1.6;
  color: #4a5568;
}

.comparison-col.pain li span {
  color: #e53e3e;
  font-weight: 900;
}

.comparison-col.solution li span {
  color: #16a34a;
  font-weight: 900;
}

/* 四大软著卡片网格 */
.copyright-modules-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.cr-card {
  background: #fbfbf9;
  border: 1px solid #e2e4dd;
  border-radius: 8px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.cr-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.05);
  border-color: var(--forest);
}

.cr-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.cr-seq {
  font-size: 11px;
  font-weight: 850;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--forest);
  letter-spacing: 0.05em;
}

.cr-reg {
  font-size: 11px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 750;
  color: var(--orange);
  background: #fff;
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid #fed7aa;
}

.cr-card h3 {
  font-size: 16.5px;
  font-weight: 800;
  color: var(--ink);
  margin: 0 0 4px;
  line-height: 1.4;
}

.cr-en-name {
  font-size: 12px;
  font-style: italic;
  color: var(--muted);
  margin: 0 0 12px;
  line-height: 1.4;
}

.cr-desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: #4a5568;
  margin: 0 0 14px;
  flex-grow: 1;
}

.cr-footer {
  border-top: 1px solid #e5e7eb;
  padding-top: 10px;
}

.cr-status {
  font-size: 11.5px;
  font-weight: 750;
  color: var(--forest);
}

/* 四大阶段技术流程 */
.stage-flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.stage-card {
  background: #fbfbf9;
  border: 1px solid #e2e4dd;
  border-top: 3px solid var(--forest);
  border-radius: 6px;
  padding: 18px 16px;
}

.stage-step-badge {
  font-size: 11px;
  font-weight: 800;
  color: var(--forest);
  margin-bottom: 8px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.stage-card h4 {
  font-size: 15px;
  font-weight: 800;
  color: var(--ink);
  margin: 0 0 8px;
  line-height: 1.35;
}

.stage-card p {
  font-size: 13px;
  line-height: 1.68;
  color: #4a5568;
  margin: 0;
}

/* 六大技术优势网格 */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.adv-card {
  background: #fbfbf9;
  border: 1px solid #e2e4dd;
  border-radius: 8px;
  padding: 20px 18px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.adv-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.04);
  border-color: var(--forest);
}

.adv-num {
  font-size: 22px;
  font-weight: 900;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--forest);
  margin-bottom: 6px;
  line-height: 1;
}

.adv-card h4 {
  font-size: 15.5px;
  font-weight: 800;
  color: var(--ink);
  margin: 0 0 3px;
}

.adv-en {
  font-size: 11.5px;
  font-style: italic;
  color: var(--muted);
  display: block;
  margin-bottom: 10px;
  line-height: 1.3;
}

.adv-card p {
  font-size: 13px;
  line-height: 1.68;
  color: #4a5568;
  margin: 0;
}

/* 市场应用场景与量化看板 */
.application-scenarios-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 26px;
}

.scenario-box {
  background: #fbfbf9;
  border: 1px solid #e2e4dd;
  border-radius: 8px;
  padding: 20px;
}

.scenario-tag {
  font-size: 11px;
  font-weight: 800;
  color: var(--orange);
  margin-bottom: 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.scenario-box h4 {
  font-size: 15.5px;
  font-weight: 800;
  color: var(--ink);
  margin: 0 0 8px;
}

.scenario-box p {
  font-size: 13.5px;
  line-height: 1.72;
  color: #4a5568;
  margin: 0;
}

.scenario-box strong {
  color: var(--forest);
  font-weight: 800;
}

/* 实测指标高光看板 */
.impact-metrics-dashboard {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 22px;
}

.metric-card {
  background: #f8faf8;
  border: 1px solid #d1fae5;
  border-radius: 8px;
  padding: 18px 14px;
  text-align: center;
}

.metric-card.highlight {
  background: #ecfdf5;
  border-color: #10b981;
}

.metric-val {
  display: block;
  font-size: 32px;
  font-weight: 900;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: #047857;
  line-height: 1.1;
  margin-bottom: 4px;
}

.metric-lbl {
  display: block;
  font-size: 12.5px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 6px;
}

.metric-card p {
  font-size: 11px;
  line-height: 1.5;
  color: #6b7280;
  margin: 0;
}

/* 结论陈述框 */
.conclusion-box {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: #f0f7f3;
  border: 1px solid #bbf7d0;
  border-radius: 8px;
  padding: 18px 22px;
}

.conclusion-icon {
  font-size: 18px;
  color: var(--forest);
  line-height: 1.2;
}

.conclusion-text strong {
  display: block;
  font-size: 14.5px;
  font-weight: 800;
  color: var(--forest);
  margin-bottom: 4px;
}

.conclusion-text p {
  font-size: 13.5px;
  line-height: 1.7;
  color: #374151;
  margin: 0;
}

/* 白皮书底部操作面板 */
.whitepaper-doc-footer {
  margin-top: 36px;
}

.footer-action-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 26px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-info strong {
  display: block;
  font-size: 16px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 4px;
}

.footer-info p {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
}

.footer-btns {
  display: flex;
  gap: 12px;
  align-items: center;
}

@media (max-width: 980px) {
  .painpoints-vs-solutions {
    grid-template-columns: 1fr;
  }
  .copyright-modules-grid {
    grid-template-columns: 1fr;
  }
  .stage-flow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .application-scenarios-grid {
    grid-template-columns: 1fr;
  }
  .impact-metrics-dashboard {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .whitepaper-section {
    padding: 24px 20px;
  }
  .stage-flow-grid {
    grid-template-columns: 1fr;
  }
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  .impact-metrics-dashboard {
    grid-template-columns: 1fr;
  }
  .meta-specs {
    flex-direction: column;
    gap: 12px;
  }
  .whitepaper-meta-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .footer-action-panel {
    flex-direction: column;
    align-items: stretch;
  }
  .footer-btns {
    flex-direction: column;
  }
}

/* 11. 高质感企业级综合页脚 =============================================== */
.site-footer {
  background: var(--ink);
  color: #fff;
  padding: 68px var(--pad-x) 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-container {
  max-width: 1360px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-col {
  display: flex;
  flex-direction: column;
}

.footer-brand-col .brand {
  margin-bottom: 16px;
}

.footer-bio {
  font-size: 13.5px;
  color: #9ba3a7;
  line-height: 1.75;
  margin: 0 0 20px;
  max-width: 360px;
}

.footer-social-tags {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.social-tag {
  font-size: 11.5px;
  color: var(--lime);
  font-weight: 700;
}

.footer-col-title {
  font-size: 14px;
  font-weight: 850;
  color: #fff;
  letter-spacing: 0.06em;
  margin: 0 0 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--orange);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links li a,
.footer-links li span {
  font-size: 13px;
  color: #9ba3a7;
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
  display: inline-block;
}

.footer-links li a:hover {
  color: #fff;
  transform: translateX(4px);
}

.footer-qr-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 14px;
}

.footer-qr-img {
  width: 76px;
  height: 76px;
  background: #fff;
  padding: 4px;
  border-radius: 4px;
  flex-shrink: 0;
}

.footer-qr-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.footer-qr-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: left;
}

.footer-qr-info strong {
  font-size: 13px;
  color: #fff;
}

.footer-qr-info small {
  font-size: 11px;
  color: var(--lime);
  font-family: monospace;
}

.footer-copy-btn {
  min-height: 28px;
  padding: 0 12px;
  font-size: 11px;
  border-radius: 3px;
  margin-top: 4px;
  align-self: flex-start;
}

.footer-service-hours {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-service-hours span {
  font-size: 11.5px;
  color: #8c9598;
}

.footer-modal-trigger {
  background: transparent;
  border: 0;
  padding: 0;
  color: var(--orange);
  font-size: 12.5px;
  font-weight: 800;
  cursor: pointer;
  text-align: left;
  transition: color 0.2s ease;
}

.footer-modal-trigger:hover {
  color: #fff;
  text-decoration: underline;
}

/* 页脚底栏 */
.footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: #7d8589;
  gap: 20px;
}

.footer-bottom-left {
  display: flex;
  align-items: center;
}

.footer-bottom-right {
  display: flex;
  align-items: center;
  gap: 18px;
}

.footer-back-top {
  color: var(--orange);
  font-weight: 750;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-back-top:hover {
  color: #fff;
}

/* 12. 响应式 ============================================================= */
@media (max-width: 1100px) {
  .technology-grid {
    grid-template-columns: 1fr 1fr;
  }

  .technology-article-card {
    grid-column: 1 / -1;
  }

  .technology-article-card .technology-copy {
    max-width: 700px;
  }
}

@media (max-width: 900px) {
  .desktop-nav,
  .header-cta {
    display: none;
  }

  .menu-button {
    display: flex;
    width: 44px;
    height: 44px;
    border: 0;
    background: transparent;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    padding: 0;
    z-index: 102;
  }

  .menu-button span {
    width: 22px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease;
  }

  .menu-button[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-button[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-button[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .mobile-menu-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 98;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

  .mobile-menu-backdrop.open {
    opacity: 1;
    pointer-events: auto;
  }

  .mobile-menu {
    display: flex;
    position: fixed;
    left: 0;
    right: 0;
    top: var(--header-h);
    max-height: calc(85vh - var(--header-h));
    overflow-y: auto;
    background: #fbfaf6;
    color: var(--ink);
    padding: 24px 7vw 32px;
    flex-direction: column;
    gap: 20px;
    transform: translateY(-120%);
    transition: transform 0.35s cubic-bezier(0.2, 0.9, 0.3, 1);
    z-index: 99;
    border-bottom: 2px solid var(--orange);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.16);
  }

  .mobile-menu.open {
    transform: translateY(0);
  }

  .mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .mobile-nav-links a {
    font-size: 16px;
    font-weight: 800;
    color: var(--ink);
    padding: 6px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transition: color 0.2s ease;
  }

  .mobile-nav-links a:hover {
    color: var(--orange);
  }

  .mobile-menu-actions {
    margin-top: 8px;
  }

  .mobile-consult-btn {
    width: 100%;
    justify-content: center;
  }

  .hero {
    height: 760px;
    min-height: 0;
  }

  .hero-content {
    left: auto;
    right: auto;
  }

  .hero-proof {
    display: none;
  }

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

  .intro-copy {
    padding-top: 0;
  }

  .intro-framed-container {
    padding: 32px 24px;
    margin-top: 18px;
  }

  .intro-body-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .intro-stat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-top: 24px;
  }

  .section-pad {
    padding: 56px var(--pad-x);
  }

  .section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 28px;
  }

  .service-block {
    padding: 30px 0 34px;
  }

  .service-title-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .design-showcase-grid,
  .build-showcase-grid,
  .training-showcase-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }

  /* 彻底消除 280px 触发的 407px 宽度反向外扩：重置 min-height，让卡片宽度严格锚定屏幕 100% */
  .build-feature-card,
  .training-feature-card {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    min-height: 0;
    aspect-ratio: 16 / 11;
    box-sizing: border-box;
  }

  .build-quad-gallery {
    aspect-ratio: auto;
    height: auto;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .build-quad-gallery figure {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    min-height: 0;
    aspect-ratio: 16 / 11;
    box-sizing: border-box;
  }

  .training-dual-gallery {
    aspect-ratio: auto;
    height: auto;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    gap: 12px;
  }

  .training-dual-gallery figure {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    min-height: 0;
    aspect-ratio: 16 / 9;
    box-sizing: border-box;
  }

  .services-lead-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 24px;
  }

  .services-quick-index {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
  }

  .blueprint-villa-svg {
    opacity: 0.1;
    width: 60vw;
  }

  .service-action-bar {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    gap: 16px;
    padding: 18px 16px;
  }

  .action-bar-info {
    text-align: left;
  }

  .action-bar-cta {
    width: 100%;
  }

  .action-bar-cta .button {
    width: 100%;
    justify-content: center;
  }

  .founder-layout {
    grid-template-columns: 1fr 1fr;
    gap: 22px;
  }

  .founder-master-profile {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 28px 24px;
  }

  .founder-card {
    max-width: none;
  }

  .founder-card .leader-portrait {
    height: 400px;
  }

  .founder-quote {
    padding: 48px 36px;
  }

  .technology-media {
    height: 250px;
  }

  .technology-copy {
    padding: 26px;
  }

  .tech-dual-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .cert-honor-wall {
    padding: 28px 24px 22px;
  }

  .cert-honor-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .cert-honor-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .cert-honor-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .future-house {
    transform: scale(0.82);
  }

  .article-library-head {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .article-library-intro {
    max-width: 600px;
  }

  .article-index {
    grid-template-columns: 100px 55px 1fr;
  }

  .article-heading {
    grid-template-columns: 1fr;
    gap: 12px;
  }

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

  .article-body section:nth-child(odd) {
    padding-right: 0;
    border-right: 0;
  }

  .article-body section:nth-child(even) {
    padding-left: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

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

  .language-toggle {
    margin-left: auto;
    margin-right: 12px;
  }
}

@media (max-width: 560px) {
  :root {
    --header-h: 60px;
  }

  .site-header {
    height: 60px;
    padding: 0 16px;
  }

  .site-header.scrolled {
    height: 54px;
  }

  .brand-name {
    font-size: 18px;
  }

  .brand-sub {
    display: none;
  }

  .logo-mark {
    width: 34px;
    height: 34px;
  }

  .language-toggle {
    margin-right: 6px;
    padding: 5px 9px;
    font-size: 11px;
  }

  /* 彻底修复：手机端首屏 Hero 不再重叠 */
  .hero {
    height: auto;
    min-height: calc(100svh - 60px);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding-top: 60px;
    padding-bottom: 78px; /* 避让底部常驻快捷栏 */
    position: relative;
    overflow: hidden;
  }

  .hero-slide img {
    object-position: center;
  }

  /* 案例标牌置于右上角安全区，消除与下方文字按钮的重叠 */
  .hero-slide figcaption,
  .slide-badge {
    position: absolute;
    top: 74px;
    right: 16px;
    bottom: auto;
    font-size: 11px;
    padding: 5px 12px;
    z-index: 4;
  }

  .hero-content {
    position: relative;
    top: auto;
    bottom: auto;
    left: auto;
    right: auto;
    transform: none;
    margin: 0;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 24px 16px 8px;
    z-index: 2;
  }

  .hero-showcase-dock {
    position: static;
    margin: 10px 16px 0;
    width: calc(100% - 32px);
    max-width: calc(100% - 32px);
    box-sizing: border-box;
  }

  .eyebrow {
    font-size: 12px;
    margin-bottom: 12px;
    gap: 8px;
  }

  .hero-content h1 {
    font-size: clamp(30px, 8.5vw, 38px);
    line-height: 1.15;
    margin-bottom: 12px;
  }

  .hero-copy {
    font-size: 14px;
    line-height: 1.55;
    margin-bottom: 18px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .hero-actions {
    display: flex;
    flex-direction: row;
    gap: 10px;
    width: 100%;
  }

  .hero-actions .button {
    flex: 1;
    min-height: 48px;
    padding: 0 12px;
    font-size: 14px;
    justify-content: center;
    gap: 6px;
  }

  .hero-badges,
  .hero-capabilities,
  .hero-proof {
    display: none;
  }

  /* 手机端轮播指示器居中放置在操作按钮下方 */
  .slider-controls {
    position: relative;
    right: auto;
    bottom: auto;
    margin-top: 14px;
    margin-bottom: 4px;
    padding: 4px 16px;
    background: transparent;
    border: 0;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    justify-content: center;
    z-index: 4;
  }

  .slider-arrow {
    display: none; /* 手机端支持手指滑动手势，隐藏箭头 */
  }

  .slider-dots {
    display: flex;
    gap: 8px;
    align-items: center;
  }

  .slider-dots button {
    width: 22px;
    height: 4px;
    border-radius: 2px;
  }

  .slider-dots button.active {
    width: 32px;
  }

  .section-pad {
    padding: 42px 16px;
  }

  .section-head {
    margin-bottom: 22px;
  }

  .services-chapter-divider {
    margin: 20px 0 16px;
  }

  .service-block {
    padding: 24px 0 28px;
  }

  footer {
    padding: 44px 16px 84px;
  }

  .build-quad-gallery {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .build-quad-gallery figure {
    min-height: 0;
    aspect-ratio: 16 / 9;
    width: 100%;
  }

  .training-dual-gallery figure {
    min-height: 0;
    aspect-ratio: 16 / 9;
    width: 100%;
  }

  .founder-layout {
    grid-template-columns: 1fr;
  }

  .founder-master-profile {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 20px 16px;
  }

  .founder-header-row {
    flex-direction: column;
    gap: 10px;
  }

  .team-trust-bar {
    flex-direction: column;
    align-items: flex-start;
    padding: 14px 16px;
  }

  .intro-framed-container {
    padding: 24px 16px;
  }

  .intro-brand-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .intro-stat-grid {
    grid-template-columns: 1fr;
  }

  .founder-quote {
    padding: 44px 24px;
  }

  .founder-quote > p {
    font-size: 23px;
  }

  .service-case {
    padding: 18px;
  }

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

  .technology-media {
    height: 240px;
  }

  .tech-modules-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .cert-honor-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .cert-honor-wall {
    padding: 22px 16px;
    border-radius: 8px;
  }

  .cert-sub-strip {
    flex-direction: column;
    align-items: flex-start;
  }

  .technology-copy > span:not(.technology-read-link) {
    min-height: 0;
  }

  .technology-note {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .certificate-gallery {
    grid-template-columns: 1fr;
  }

  .certificate-gallery a {
    grid-template-columns: 72px 1fr;
  }

  .certificate-gallery img {
    width: 72px;
    height: 88px;
  }

  .video-link {
    grid-template-columns: 34px 1fr;
  }

  .video-link small {
    grid-column: 2;
    white-space: normal;
  }

  .article-symbol {
    width: 160px;
    height: 140px;
  }

  .brand-name {
    font-size: 24px;
  }

  .logo-mark {
    width: 36px;
    height: 36px;
  }

  .article-library {
    padding-top: 120px;
  }

  .article-library-head {
    padding-bottom: 38px;
  }

  .article-library-head h1 {
    font-size: 52px;
  }

  .article-library-intro {
    font-size: 16px;
  }

  .article-index {
    grid-template-columns: 1fr 46px;
    gap: 8px;
  }

  .article-index p {
    grid-column: 1 / -1;
  }

  .standalone-article {
    margin-top: 34px;
    padding: 26px 20px;
  }

  .article-future-note {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .article-heading {
    padding: 24px 0;
  }

  .article-body section {
    padding: 24px 0;
  }

  .article-modules {
    grid-template-columns: 1fr;
  }

  .article-points li {
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 36px;
  }

  .site-footer {
    padding: 48px 16px 84px;
  }

  .footer-qr-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .footer-bottom-right {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .services {
    padding-top: 40px;
  }

  .services-blueprint-backdrop .blueprint-cad-badge {
    display: none;
  }

  .blueprint-villa-svg {
    display: none;
  }

  .services-lead-left {
    gap: 0;
  }

  .lead-datum-ruler {
    display: none;
  }

  .services-kicker {
    flex-wrap: wrap;
    font-size: 11.5px;
  }

  .services-quick-index {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 8px;
  }

  .quick-index-pill {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
  }

  .quick-index-pill .pill-body {
    flex: 1;
    margin-left: 10px;
  }

  .quick-index-pill .pill-arrow {
    position: static;
  }
}

/* 移动端专属悬浮快捷操作栏 (Bottom Action Bar) ========================== */
.mobile-bottom-bar {
  display: none;
}

@media (max-width: 768px) {
  .mobile-bottom-bar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(56px + env(safe-area-inset-bottom, 0px));
    padding-bottom: env(safe-area-inset-bottom, 0px);
    background: rgba(18, 34, 30, 0.78);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    z-index: 95;
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.3);
  }

  .bottom-bar-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    color: rgba(255, 255, 255, 0.82);
    font-size: 11px;
    font-weight: 700;
    background: transparent;
    border: 0;
    padding: 0;
    transition: color 0.2s ease, background 0.2s ease;
  }

  .bottom-bar-item .bar-icon {
    font-size: 16px;
    line-height: 1;
  }

  .bottom-bar-item.highlight {
    background: var(--orange);
    color: #fff;
    font-weight: 800;
  }

  .bottom-bar-item:active {
    opacity: 0.85;
  }
}

/* 咨询与预约弹窗 (Consult & Booking Modal) ============================== */
.consult-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.consult-modal.open {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(18, 30, 27, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-container {
  position: relative;
  width: 100%;
  max-width: 440px;
  background: #fbfaf6;
  border-radius: 14px;
  padding: 48px 24px 24px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  z-index: 2;
  text-align: center;
  animation: modalPop 0.3s cubic-bezier(0.2, 0.9, 0.3, 1);
  max-height: calc(100vh - 40px);
  overflow-y: auto;
}

@keyframes modalPop {
  from {
    opacity: 0;
    transform: scale(0.92) translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 14px;
  width: 30px;
  height: 30px;
  border: 0;
  border-radius: 50%;
  background: rgba(41, 67, 62, 0.08);
  color: var(--ink);
  font-size: 18px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, transform 0.2s ease, color 0.2s ease;
  z-index: 10;
}

.modal-close:hover {
  background: rgba(238, 91, 54, 0.15);
  color: var(--orange);
  transform: rotate(90deg);
}

/* 弹窗分栏切换 Tabs */
.modal-tabs {
  display: flex;
  gap: 6px;
  background: rgba(41, 67, 62, 0.08);
  padding: 4px;
  border-radius: 9px;
  margin-bottom: 18px;
}

.modal-tab {
  flex: 1;
  border: 0;
  background: transparent;
  padding: 9px 10px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.modal-tab:hover:not(.active) {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.5);
}

.modal-tab.active {
  background: #ffffff;
  color: var(--ink);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  font-weight: 800;
}

.modal-tab-content {
  display: none;
}

.modal-tab-content.active {
  display: block;
  animation: tabFadeIn 0.25s ease;
}

@keyframes tabFadeIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.modal-header .modal-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
}

.modal-badge.design-badge {
  color: #1f5f4b;
  background: rgba(31, 95, 75, 0.12);
  border: 1px solid rgba(31, 95, 75, 0.22);
}

.modal-badge.general-badge {
  color: var(--orange);
  background: rgba(238, 91, 54, 0.1);
  border: 1px solid rgba(238, 91, 54, 0.18);
}

.modal-header h3 {
  margin: 0 0 6px;
  font-size: 20px;
  color: var(--ink);
  font-weight: 850;
}

.modal-header p {
  margin: 0 0 16px;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.45;
}

/* 预约设计指引标签 */
.modal-guide-tips {
  margin-bottom: 14px;
}

.tip-pill {
  background: #eef3f0;
  border: 1px dashed rgba(41, 67, 62, 0.3);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 11.5px;
  text-align: left;
  line-height: 1.5;
  color: var(--ink);
}

.tip-pill strong {
  display: inline-block;
  color: var(--orange);
  margin-right: 6px;
  font-weight: 800;
}

.tip-pill span {
  color: #3b524c;
}

.modal-qr-box {
  width: 172px;
  margin: 0 auto 16px;
  padding: 10px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.05);
}

.modal-qr-box img {
  width: 100%;
  height: auto;
  border-radius: 4px;
}

.qr-tip {
  display: block;
  font-size: 11px;
  color: var(--muted);
  margin-top: 6px;
}

.modal-contact-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: #eef0ec;
  padding: 9px 14px;
  border-radius: 6px;
  margin-bottom: 12px;
}

.contact-wechat-id {
  text-align: left;
}

.wechat-label {
  display: block;
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
}

.wechat-value {
  font-size: 15px;
  color: var(--ink);
  letter-spacing: 0.05em;
}

.copy-btn {
  min-height: 36px;
  padding: 0 16px;
  font-size: 12px;
  border-radius: 4px;
}

/* 预约设计三大约束与承诺 */
.modal-promises {
  display: flex;
  justify-content: space-around;
  gap: 6px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed rgba(41, 67, 62, 0.15);
}

.modal-promises span {
  font-size: 11px;
  color: #305047;
  font-weight: 700;
}

.modal-hint {
  margin: 0;
  font-size: 11px;
  color: var(--muted);
}

/* 全站画廊 Lightbox 模态框 =============================================== */
.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.28s cubic-bezier(0.2, 0.8, 0.2, 1), visibility 0.28s;
}

.lightbox-modal.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(12, 20, 18, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  cursor: zoom-out;
}

.lightbox-container {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  max-width: 1320px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 80px 30px;
  box-sizing: border-box;
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 28px;
  z-index: 10;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 30px;
  line-height: 1;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.lightbox-close:hover {
  background: var(--orange);
  border-color: var(--orange);
  transform: rotate(90deg) scale(1.05);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 32px;
  line-height: 1;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
  user-select: none;
}

.lightbox-nav:hover {
  background: var(--orange);
  border-color: var(--orange);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
  left: 24px;
}

.lightbox-next {
  right: 24px;
}

.lightbox-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  max-height: 100%;
}

.lightbox-media-wrap {
  max-width: 100%;
  max-height: calc(86vh - 70px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.35);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.lightbox-img {
  max-width: 100%;
  max-height: calc(86vh - 70px);
  object-fit: contain;
  display: block;
  user-select: none;
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.lightbox-caption {
  margin-top: 16px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: #fff;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-sizing: border-box;
}

.lightbox-caption-text {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #f7f6f2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lightbox-counter {
  font-size: 12px;
  font-weight: 800;
  color: var(--lime);
  background: rgba(206, 210, 108, 0.15);
  border: 1px solid rgba(206, 210, 108, 0.3);
  padding: 2px 8px;
  border-radius: 4px;
  white-space: nowrap;
  letter-spacing: 0.06em;
}

@media (max-width: 768px) {
  .lightbox-container {
    padding: 60px 14px 20px;
  }

  .lightbox-close {
    top: 14px;
    right: 14px;
    width: 40px;
    height: 40px;
    font-size: 26px;
  }

  .lightbox-nav {
    width: 42px;
    height: 42px;
    font-size: 26px;
    background: rgba(20, 36, 32, 0.75);
  }

  .lightbox-prev {
    left: 8px;
  }

  .lightbox-next {
    right: 8px;
  }

  .lightbox-media-wrap {
    max-height: calc(75vh - 50px);
  }

  .lightbox-img {
    max-height: calc(75vh - 50px);
  }

  .lightbox-caption {
    margin-top: 12px;
    padding: 6px 12px;
  }

  .lightbox-caption-text {
    font-size: 12px;
  }
}

/* 13. 动效与无障碍 ======================================================= */
/* 键盘聚焦可见性 */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* 跳转链接（仅键盘触发时显示） */
.skip-link {
  position: fixed;
  left: 16px;
  top: 16px;
  z-index: 100;
  padding: 12px 18px;
  background: var(--ink);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  transform: translateY(-200%);
  transition: transform 0.2s ease;
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
}

/* 尊重系统「减少动态效果」偏好 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero-slide {
    transition: none;
  }

  .button,
  .design-card-media img,
  .build-feature-media img,
  .build-quad-gallery img,
  .training-feature-media img,
  .training-dual-gallery img,
  .video-link,
  .certificate-gallery a,
  .technology-card-link .article-media {
    transition: none;
  }
}


/* ==========================================================================
   英文模式专属排版与全终端自适应 (body.lang-en)
   针对西文字符串长度、层级密度与换行平衡全面深度调优
   ========================================================================== */

/* 1. 全局西文字体度量与排版对齐（根治英文 justify 产生的尴尬河流空白） */
body.lang-en {
  letter-spacing: 0;
  word-spacing: 0.02em;
}

body.lang-en p,
body.lang-en .intro-lead-box p,
body.lang-en .intro-para-card p,
body.lang-en .founder-bio-prose p,
body.lang-en .whitepaper-lead-quote p,
body.lang-en .section-prose p,
body.lang-en .service-title-row p,
body.lang-en .design-card-body p,
body.lang-en .feature-overlay p,
body.lang-en .trust-bar-text {
  text-align: left;
  hyphens: auto;
}

/* 2. 顶栏导航与头部动作条自适应 */
body.lang-en .brand-sub {
  font-size: 10px;
  letter-spacing: 0.04em;
  font-weight: 600;
}

body.lang-en .desktop-nav {
  gap: 20px;
  font-size: 13.5px;
  font-weight: 600;
}

body.lang-en .header-cta {
  padding: 0 14px;
  font-size: 12.5px;
  letter-spacing: 0.02em;
}

@media (max-width: 1200px) and (min-width: 901px) {
  body.lang-en .desktop-nav {
    gap: 12px;
    font-size: 12px;
  }

  body.lang-en .brand-text {
    max-width: 170px;
  }

  body.lang-en .brand-name {
    font-size: 19px;
  }

  body.lang-en .brand-sub {
    font-size: 9px;
  }

  body.lang-en .header-cta {
    height: 36px;
    padding: 0 10px;
    font-size: 11px;
  }
}

/* 3. Hero 首屏自适应排版优化 */
body.lang-en .hero-brand-pill {
  font-size: 11px;
  line-height: 1.4;
  max-width: 96%;
  white-space: normal;
  padding: 6px 14px;
}

body.lang-en .hero-title {
  font-size: clamp(28px, 3.8vw, 48px);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

body.lang-en .hero-copy {
  font-size: 14.5px;
  line-height: 1.7;
  max-width: 580px;
}

body.lang-en .hero-actions {
  gap: 14px;
}

body.lang-en .hero-proof-bar {
  gap: 16px;
  padding: 10px 18px;
}

body.lang-en .hero-proof-bar .metric-val {
  font-size: 20px;
}

body.lang-en .hero-proof-bar .metric-tit {
  font-size: 11px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

body.lang-en .hero-showcase-dock .showcase-name {
  font-size: 13.5px;
}

body.lang-en .hero-showcase-dock .showcase-tagline {
  max-width: 320px;
  font-size: 11px;
}

body.lang-en .hero-showcase-dock .showcase-pills {
  gap: 6px;
}

body.lang-en .hero-showcase-dock .showcase-pill {
  font-size: 11px;
  padding: 3px 9px;
}

/* 4. 业务总览与快捷导轨卡片自适应 */
body.lang-en .services-headline {
  font-size: clamp(24px, 2.5vw, 36px);
  line-height: 1.25;
}

body.lang-en .quick-index-pill {
  padding: 10px 12px;
}

body.lang-en .quick-index-pill .pill-label {
  white-space: normal;
  line-height: 1.25;
  font-size: 12.5px;
}

body.lang-en .quick-index-pill .pill-sub {
  white-space: normal;
  line-height: 1.3;
  font-size: 10px;
}

/* 5. 核心业务卡片与展签自适应 */
body.lang-en .service-title-row h3 {
  font-size: clamp(22px, 2.2vw, 32px);
  line-height: 1.25;
}

body.lang-en .service-highlights {
  gap: 12px;
  font-size: 12px;
}

body.lang-en .build-options-row li {
  font-size: 11px;
  padding: 5px 10px;
  gap: 6px;
}

body.lang-en .case-tags {
  gap: 5px;
}

body.lang-en .case-tags em {
  font-size: 10px;
  padding: 2px 7px;
}

body.lang-en .action-bar-info strong {
  font-size: 14.5px;
}

body.lang-en .action-bar-info p {
  font-size: 12px;
  line-height: 1.5;
}

body.lang-en .action-bar-cta .button {
  font-size: 13px;
  padding: 0 18px;
}

/* 6. 创始人模块排版自适应 */
body.lang-en .founder-header-row {
  align-items: flex-start;
}

body.lang-en .founder-titles {
  font-size: 12px;
  line-height: 1.5;
}

body.lang-en .quote-banner-content {
  font-size: 13.5px;
  line-height: 1.65;
  font-style: italic;
}

body.lang-en .founder-bio-prose p {
  font-size: 13px;
  line-height: 1.75;
}

body.lang-en .founder-philosophy-pills span {
  font-size: 11px;
  padding: 4px 10px;
}

body.lang-en .trust-bar-text {
  font-size: 12.5px;
  line-height: 1.6;
}

/* 7. 关于我们与数据卡片自适应（彻底根除 nowrap 溢出卡片） */
body.lang-en .intro-head h2 {
  white-space: normal;
  font-size: clamp(22px, 2.2vw, 32px);
  line-height: 1.25;
}
body.lang-en .intro-tags span {
  font-size: 10.5px;
  padding: 3px 8px;
}

body.lang-en .intro-lead-box p {
  font-size: 14px;
  line-height: 1.75;
}

body.lang-en .intro-para-card p {
  font-size: 12.5px;
  line-height: 1.7;
}

body.lang-en .stat-content h4 {
  white-space: normal;
  font-size: 13.5px;
  line-height: 1.35;
  margin-bottom: 4px;
}

body.lang-en .stat-content p {
  font-size: 11.5px;
  line-height: 1.45;
}

/* 8. 建造科技与证书展廊 */
body.lang-en .twin-spec-pill {
  font-size: 10px;
  padding: 2px 7px;
}

body.lang-en .tech-blueprint-header h3 {
  font-size: clamp(19px, 1.9vw, 26px);
}

body.lang-en .cert-marquee-card h4 {
  font-size: 13px;
  line-height: 1.35;
  white-space: normal;
}

body.lang-en .cert-reg-code {
  font-size: 10px;
  letter-spacing: 0.02em;
}

body.lang-en .cert-status-pill {
  font-size: 11px;
}

/* 9. 页脚与弹窗适配 */
body.lang-en .footer-mission {
  font-size: 12px;
  line-height: 1.7;
}

body.lang-en .modal-tagline {
  font-size: 11.5px;
  line-height: 1.5;
}

body.lang-en .consult-tab-btn {
  font-size: 12px;
}