/* ==========================================================================
   钉钉：在线审批-网页填写-流程跟踪-移动同步
   视觉风格：蓝图坐标·留白大字
   骨架：斜向切块 ｜ 首屏主张居中，再信任数字，再四功能横带，再案例回收 ｜ 底部通栏口号，页脚两列
   配色体系：主色栗壳 #6F4E37 ｜ 辅色米白 #F7F1E7 ｜ 点缀海青 #2B7A78
   背景：工程蓝图网格与坐标刻度·留白大字
   字体：文泉驿正黑 + IBM Plex Sans
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&display=swap');

:root {
  --color-primary: #6F4E37;        /* 栗壳主色 */
  --color-primary-dark: #543B2A;   /* 深栗壳 */
  --color-primary-light: #8E684D;  /* 浅栗壳 */
  --color-bg-base: #F7F1E7;        /* 米白底色 */
  --color-bg-pure: #FFFFFF;        /* 纯白 */
  --color-bg-gray: #EFE9E0;        /* 浅灰/蓝图灰底色 */
  --color-bg-contrast: #241E1A;    /* 深墨褐底 */
  --color-accent: #2B7A78;         /* 海青点缀色 */
  --color-accent-light: #3AAFA9;   /* 亮海青 */
  --color-accent-dim: rgba(43, 122, 120, 0.12);
  --color-text-main: #2C221E;      /* 主文本深栗墨 */
  --color-text-muted: #6B5E55;     /* 次级说明文本 */
  --color-text-faint: #9E9187;     /* 低对比度微小文字/标尺 */
  --color-border: #DCD4C8;         /* 工程图纸浅灰线条 */
  --color-border-grid: rgba(111, 78, 55, 0.08); /* 蓝图网格细线 */

  --font-family-base: "IBM Plex Sans", "WenQuanYi Zen Hei", "文泉驿正黑", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --container-narrow: 880px;       /* 核心阅读呼吸窄栏 */
  --container-wide: 1140px;        /* 宽展容器 */
}

/* 基础重置与工程蓝图背景网格 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-base);
  background-color: var(--color-bg-base);
  color: var(--color-text-main);
  line-height: 1.68;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* 工程蓝图网格与坐标刻度·留白大字 背景底纹 */
.blueprint-bg-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--color-border-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border-grid) 1px, transparent 1px),
    linear-gradient(rgba(43, 122, 120, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43, 122, 120, 0.05) 1px, transparent 1px);
  background-size: 24px 24px, 24px 24px, 120px 120px, 120px 120px;
  background-position: center top;
}

/* 留白大字水印背景 (斜向大字) */
.blueprint-watermark-words {
  position: fixed;
  top: 18%;
  left: 50%;
  transform: translate(-50%, 0) rotate(-6deg);
  font-size: clamp(4.5rem, 12vw, 11rem);
  font-weight: 800;
  color: rgba(111, 78, 55, 0.028);
  white-space: nowrap;
  letter-spacing: 0.18em;
  pointer-events: none;
  z-index: 0;
  user-select: none;
  text-transform: uppercase;
}

/* 侧边工程标尺刻度线装饰 */
.blueprint-ruler-track {
  position: fixed;
  right: 18px;
  top: 25%;
  font-family: "IBM Plex Sans", monospace;
  font-size: 11px;
  color: var(--color-text-faint);
  letter-spacing: 2px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  z-index: 2;
  pointer-events: none;
  opacity: 0.7;
}

.blueprint-ruler-track span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.blueprint-ruler-track span::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 1px;
  background-color: var(--color-accent);
}

/* 容器定义 */
.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
  position: relative;
  z-index: 1;
}

.container-wide {
  width: 100%;
  max-width: var(--container-wide);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   控件规范：
   - 按钮白底、1px 浅灰边、4px 圆角、很轻的阴影
   - 页签选中底色用 rgba(142,142,142,.16)，圆角 8px
   - 左右边距手机至少 16px
   ========================================================================== */
.btn-control {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: #FFFFFF;
  border: 1px solid #DCD4C8;
  border-radius: 4px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  padding: 10px 22px;
  font-family: var(--font-family-base);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  vertical-align: middle;
}

.btn-control:hover {
  background-color: #FAF7F2;
  border-color: var(--color-primary);
  box-shadow: 0 3px 8px rgba(111, 78, 55, 0.12);
  transform: translateY(-1px);
}

/* 主按钮点缀 */
.btn-control.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
  box-shadow: 0 2px 6px rgba(111, 78, 55, 0.22);
}

.btn-control.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(111, 78, 55, 0.28);
}

/* 海青强调按钮 */
.btn-control.btn-accent {
  background-color: var(--color-accent);
  color: #FFFFFF;
  border-color: var(--color-accent);
}

.btn-control.btn-accent:hover {
  background-color: #216260;
  border-color: #216260;
  color: #FFFFFF;
}

/* ==========================================================================
   1. 页面最上方只放一张字标图，宽而矮，说明这是什么产品
   ========================================================================== */
.top-wordmark-bar {
  background-color: rgba(247, 241, 231, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 12px 0;
}

.wordmark-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark-branding {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.wordmark-logo {
  height: 28px;
  width: auto;
  max-width: 140px;
  display: block;
  object-fit: contain;
}

.wordmark-desc {
  font-size: 13px;
  color: var(--color-text-muted);
  border-left: 1px solid var(--color-border);
  padding-left: 12px;
  letter-spacing: 0.5px;
  font-weight: 400;
}

.nav-links-inner {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-link-item {
  color: var(--color-text-main);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 4px;
  transition: all 0.15s ease;
}

.nav-link-item:hover,
.nav-link-item.active {
  color: var(--color-accent);
  background-color: rgba(43, 122, 120, 0.08);
}

/* ==========================================================================
   骨架与首屏：首屏主张居中 + 16:9产品画面 + 快捷键拆成独立小方块
   ========================================================================== */
.hero-centered-section {
  padding: 56px 0 40px;
  text-align: center;
  position: relative;
  z-index: 1;
}

/* 蓝图坐标标尺标签 */
.blueprint-coordinate-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "IBM Plex Sans", monospace;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  background-color: var(--color-accent-dim);
  border: 1px solid rgba(43, 122, 120, 0.25);
  border-radius: 3px;
  padding: 4px 12px;
  margin-bottom: 22px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.blueprint-coordinate-tag::before {
  content: "⊕";
  font-size: 14px;
}

/* 首屏主张居中 H1 严格指定标题 */
.hero-claim-h1 {
  font-size: clamp(1.85rem, 4.2vw, 2.85rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

.hero-claim-sub {
  font-size: clamp(1rem, 1.8vw, 1.18rem);
  color: var(--color-text-muted);
  max-width: 720px;
  margin: 0 auto 28px;
  line-height: 1.7;
}

.hero-action-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

/* 字标下方接一块 16:9 的产品画面，优先短视频，无视频用一张完整工作台截图 */
.product-16x9-wrapper {
  margin: 0 auto;
  max-width: 880px;
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 10px;
  box-shadow: 0 12px 32px rgba(111, 78, 55, 0.08);
  position: relative;
}

.product-16x9-aspect {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 6px;
  background-color: #1A1715;
}

.product-16x9-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 画面上叠一行操作提示，把快捷键拆成独立小方块，例如 Ctrl Shift 1 */
.workspace-shortcut-overlay {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(36, 30, 26, 0.92);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #FFFFFF;
  padding: 9px 20px;
  border-radius: 6px;
  font-size: 13.5px;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  white-space: nowrap;
  max-width: calc(100% - 32px);
  overflow-x: auto;
}

.kbd-cap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  height: 24px;
  padding: 0 7px;
  font-family: "IBM Plex Sans", monospace;
  font-size: 12px;
  font-weight: 600;
  color: #241E1A;
  background: linear-gradient(180deg, #FFFFFF 0%, #E8E2D8 100%);
  border: 1px solid #B0A79B;
  border-radius: 3px;
  box-shadow: 0 2px 0 #948B7F;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   骨架流向：再信任数字 (Trust Numbers)
   ========================================================================== */
.trust-numbers-strip {
  padding: 48px 0;
  position: relative;
  z-index: 1;
}

.trust-numbers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.trust-number-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 24px 16px;
  box-shadow: 0 2px 8px rgba(111, 78, 55, 0.04);
  position: relative;
  transition: transform 0.2s ease;
}

.trust-number-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
}

.trust-stat-val {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.1;
  margin-bottom: 6px;
}

.trust-stat-val span {
  font-size: 1rem;
  color: var(--color-accent);
  margin-left: 2px;
}

.trust-stat-label {
  font-size: 13.5px;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ==========================================================================
   骨架流向：再四功能横带 (Four Horizontal Feature Bands - 斜向切块骨架)
   ========================================================================== */
.four-bands-section {
  padding: 56px 0;
  position: relative;
  z-index: 1;
}

.section-head-blueprint {
  text-align: center;
  margin-bottom: 40px;
}

.section-tag-mark {
  font-family: "IBM Plex Sans", monospace;
  font-size: 12px;
  color: var(--color-accent);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}

.section-head-title {
  font-size: clamp(1.5rem, 2.8vw, 2.1rem);
  font-weight: 700;
  color: var(--color-primary);
}

.four-bands-container {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* 斜向切块视觉：带坐标刻度与微切角 */
.blueprint-band-row {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: 6px;
  padding: 24px 28px;
  display: grid;
  grid-template-columns: 80px 180px 1fr 140px;
  align-items: center;
  gap: 24px;
  box-shadow: 0 2px 8px rgba(111, 78, 55, 0.04);
  position: relative;
  transition: all 0.2s ease;
}

.blueprint-band-row:hover {
  border-left-color: var(--color-primary);
  box-shadow: 0 6px 18px rgba(111, 78, 55, 0.08);
}

.band-index-tag {
  font-family: "IBM Plex Sans", monospace;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.band-index-tag::before {
  content: "#";
  color: var(--color-accent);
  font-size: 14px;
}

.band-feature-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text-main);
}

.band-feature-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.band-status-badge {
  text-align: right;
  font-family: "IBM Plex Sans", monospace;
  font-size: 12px;
  color: var(--color-accent);
  font-weight: 500;
  background: var(--color-accent-dim);
  padding: 5px 12px;
  border-radius: 4px;
  justify-self: end;
}

/* ==========================================================================
   2. 场景切换规范
   浅灰底。上面是图片标题，下面三个页签横排居中：场景 A、场景 B、场景 C。
   每项只有一个名称和一句说明。
   桌面端约每 3 秒自动切换，当前项用浅灰圆角底。配图宽 800px、圆角 8px。
   手机改成横向滑动，底部放小圆点。
   控件：页签选中底色用 rgba(142,142,142,.16)，圆角 8px。
   ========================================================================== */
.scene-switch-section {
  background-color: var(--color-bg-gray);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 64px 0;
  position: relative;
  z-index: 1;
}

/* 上面是图片标题 */
.scene-title-wrapper {
  text-align: center;
  margin-bottom: 30px;
}

.scene-title-img-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 36px;
  margin-bottom: 10px;
}

.scene-title-svg {
  height: 36px;
  width: auto;
}

.scene-title-sub {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* 下面三个页签横排居中：场景 A、场景 B、场景 C。每项只有一个名称和一句说明 */
.scene-tabs-row {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 16px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.scene-tab-item {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 14px 20px;
  cursor: pointer;
  text-align: left;
  max-width: 260px;
  transition: all 0.25s ease;
  font-family: var(--font-family-base);
}

.scene-tab-item:hover {
  background-color: rgba(142, 142, 142, 0.08);
}

/* 规范要求：当前项用浅灰圆角底 rgba(142,142,142,.16)，圆角 8px */
.scene-tab-item.active {
  background-color: rgba(142, 142, 142, 0.16);
  border-radius: 8px;
  border-color: rgba(111, 78, 55, 0.15);
}

.scene-tab-name {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.scene-tab-desc {
  display: block;
  font-size: 12.5px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* 配图宽 800px、圆角 8px */
.scene-img-holder-wrap {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  background-color: #FFFFFF;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 24px rgba(111, 78, 55, 0.08);
  overflow: hidden;
}

.scene-frame {
  width: 100%;
  aspect-ratio: 16 / 9;
  position: relative;
  overflow: hidden;
}

.scene-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 800px;
  max-width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.scene-img.active {
  opacity: 1;
  visibility: visible;
}

/* 手机滑动圆点 */
.scene-dots-track {
  display: none;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
}

.scene-dot-btn {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: rgba(111, 78, 55, 0.25);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.scene-dot-btn.active {
  background-color: var(--color-primary);
  width: 22px;
  border-radius: 4px;
}

/* ==========================================================================
   3. 能力段，重复三次
   三块结构相同，竖向居中，块与块之间留白约 72px，手机收成约 40px。
   - 图片标题，高度约 36px
   - 一行说明，桌面 20px 横排，手机改为左对齐竖排
   - 一张 800px 宽、圆角 8px 的界面图
   三块底色按白、浅灰、白交替。
   第一块讲存储或资料，第二块讲助手或自动化，第三块讲会议或跨端办公。
   ========================================================================== */
.capability-section-series {
  padding: 40px 0;
  position: relative;
  z-index: 1;
}

.cap-block {
  padding: 64px 0;
  text-align: center;
  position: relative;
}

/* 块与块之间留白约 72px */
.cap-block + .cap-block {
  margin-top: 72px;
}

/* 底色白、浅灰、白严格交替 */
.cap-bg-white {
  background-color: #FFFFFF;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.cap-bg-lightgray {
  background-color: var(--color-bg-gray);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.cap-inner-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* 图片标题，高度约 36px */
.cap-title-figure {
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.cap-title-svg {
  height: 36px;
  width: auto;
  max-width: 100%;
}

/* 一行说明，桌面 20px 横排，手机改为左对齐竖排 */
.cap-instruction-row {
  font-size: 20px;
  color: var(--color-text-main);
  line-height: 1.6;
  text-align: center;
  margin-bottom: 30px;
  max-width: 780px;
}

/* 一张 800px 宽、圆角 8px 的界面图 */
.cap-image-wrap-800 {
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  box-shadow: 0 6px 20px rgba(111, 78, 55, 0.06);
  overflow: hidden;
}

.cap-img-800 {
  width: 800px;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 8px;
  display: block;
}

/* ==========================================================================
   骨架流向：再案例回收 (Case Studies / Success Records)
   ========================================================================== */
.case-recovery-section {
  padding: 64px 0;
  position: relative;
  z-index: 1;
}

.cases-grid-trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card-item {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 28px 24px;
  box-shadow: 0 2px 10px rgba(111, 78, 55, 0.04);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.2s ease;
}

.case-card-item:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
  box-shadow: 0 8px 20px rgba(111, 78, 55, 0.08);
}

.case-card-meta {
  font-family: "IBM Plex Sans", monospace;
  font-size: 12px;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.case-card-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
  line-height: 1.4;
}

.case-card-quote {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 18px;
}

.case-card-author {
  border-top: 1px solid var(--color-border);
  padding-top: 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-main);
}

.case-card-role {
  color: var(--color-text-faint);
  font-size: 12px;
}

/* ==========================================================================
   4. 收尾行动规范
   一张短句图片，例如「还在等什么」。下面一个向下的小箭头，
   再放两个按钮：主按钮「立即体验」，次按钮「注册后体验」。
   邀请码、协议确认放在弹层里，不占主滚动流。
   ========================================================================== */
.closing-action-section {
  padding: 64px 0 56px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.closing-action-card {
  max-width: 680px;
  margin: 0 auto;
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 44px 32px;
  box-shadow: 0 8px 28px rgba(111, 78, 55, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* 一张短句图片，例如「还在等什么」 */
.catchphrase-figure {
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.catchphrase-svg {
  height: 48px;
  width: auto;
  max-width: 100%;
}

.closing-slogan-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-main);
  margin-bottom: 16px;
}

/* 下面一个向下的小箭头 */
.down-arrow-indicator {
  margin-bottom: 24px;
  color: var(--color-accent);
  animation: floatArrow 1.8s infinite ease-in-out;
}

@keyframes floatArrow {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* 再放两个按钮：主按钮「立即体验」，次按钮「注册后体验」 */
.action-buttons-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.btn-main-action {
  min-width: 140px;
}

.btn-sub-action {
  min-width: 140px;
}

.closing-modal-hint {
  font-size: 13px;
  color: var(--color-text-muted);
}

.modal-trigger-btn {
  background: none;
  border: none;
  color: var(--color-accent);
  text-decoration: underline;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  font-weight: 500;
  padding: 0 4px;
}

.modal-trigger-btn:hover {
  color: var(--color-primary);
}

/* ==========================================================================
   骨架流向：底部通栏口号 (Bottom Full-Width Slogan)
   ========================================================================== */
.bottom-banner-slogan {
  background-color: var(--color-bg-contrast);
  color: #FFFFFF;
  padding: 48px 0;
  text-align: center;
  position: relative;
  z-index: 1;
}

.banner-slogan-h2 {
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  font-weight: 700;
  color: var(--color-bg-base);
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.banner-slogan-desc {
  font-size: 14px;
  color: #B5A89E;
  max-width: 640px;
  margin: 0 auto;
}

/* ==========================================================================
   5. 极简页脚规范与骨架融合 (骨架：页脚两列 ｜ 一行低对比度信息，1px竖线分隔)
   一行低对比度信息。桌面横排，中间用 1px 竖线隔开：运营者、隐私政策、权限说明。手机改成竖排。
   ========================================================================== */
.footer-two-col-bar {
  background-color: #1A1513;
  color: #8C7E75;
  border-top: 1px solid #2B231F;
  padding: 24px 0;
  font-size: 13px;
  position: relative;
  z-index: 1;
}

.footer-two-col-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

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

.footer-col-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-divider-pipe {
  display: inline-block;
  width: 1px;
  height: 12px;
  background-color: #3D332D;
}

.footer-anchor {
  color: #8C7E75;
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-anchor:hover {
  color: var(--color-bg-base);
}

/* ==========================================================================
   邀请码、协议确认弹层 (不占主滚动流)
   ========================================================================== */
.modal-layer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(26, 21, 19, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-layer-backdrop.show {
  display: flex;
}

.modal-window-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  max-width: 480px;
  width: 100%;
  padding: 32px 28px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
  position: relative;
  animation: modalEnter 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalEnter {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close-icon {
  position: absolute;
  top: 18px;
  right: 18px;
  background: none;
  border: none;
  font-size: 24px;
  line-height: 1;
  color: var(--color-text-faint);
  cursor: pointer;
  padding: 4px;
}

.modal-close-icon:hover {
  color: var(--color-text-main);
}

.modal-headline {
  font-size: 19px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.modal-explain-p {
  font-size: 13.5px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 22px;
}

.modal-field-block {
  margin-bottom: 18px;
}

.modal-label-text {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-main);
  margin-bottom: 6px;
}

.modal-text-input {
  width: 100%;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0 12px;
  font-family: inherit;
  font-size: 14px;
  background-color: #FAF7F2;
  color: var(--color-text-main);
  outline: none;
  transition: border-color 0.2s ease;
}

.modal-text-input:focus {
  border-color: var(--color-primary);
  background-color: #FFFFFF;
}

.modal-check-agreement {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 12.5px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.modal-check-agreement input {
  margin-top: 3px;
  accent-color: var(--color-primary);
}

/* ==========================================================================
   移动端与响应式适配 (左右边距手机至少 16px)
   ========================================================================== */
@media (max-width: 900px) {
  .blueprint-band-row {
    grid-template-columns: 60px 1fr;
    gap: 14px;
  }
  .band-feature-desc {
    grid-column: 1 / -1;
  }
  .band-status-badge {
    grid-column: 1 / -1;
    justify-self: start;
  }
  .trust-numbers-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cases-grid-trio {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  /* 手机端左右边距至少 16px */
  .container-narrow,
  .container-wide {
    padding-left: 18px;
    padding-right: 18px;
  }

  .wordmark-desc {
    display: none;
  }

  .blueprint-ruler-track {
    display: none;
  }

  /* 场景切换：手机改成横向滑动，底部放小圆点 */
  .scene-tabs-row {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
    gap: 12px;
  }

  .scene-tab-item {
    flex: 0 0 240px;
    max-width: 240px;
  }

  .scene-dots-track {
    display: flex;
  }

  /* 能力段说明：手机改为左对齐竖排，块间距留白约 40px */
  .cap-block {
    padding: 44px 0;
  }

  .cap-block + .cap-block {
    margin-top: 40px;
  }

  .cap-instruction-row {
    font-size: 16px;
    text-align: left;
    margin-bottom: 22px;
    width: 100%;
  }

  /* 页脚规范：手机改成竖排 */
  .footer-two-col-layout {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

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

  .footer-divider-pipe {
    display: none;
  }

  .workspace-shortcut-overlay {
    font-size: 11.5px;
    padding: 6px 12px;
  }
}