/* Hallmark · v2.0.0 · theme: custom · idea: "Clean White-Hat Security Research Lab showcase and square researcher directory for Yidun Security Laboratory" · vibe: "white-hat clinical-precision architectural-grid" · paper: light · display: grotesk-heavy · accent: cool · posture: light/grotesk-heavy/cool · hero: Stage — clean white-hat topological canvas with single-line balanced headline and four-cell telemetry strip · nav: sticky three-column true-centered header with sliding active indicator · footer: clean three-column lab register with external company link · job: inspect research domains and apply to join via YPass SSO */
/* Hallmark · pre-emit critique: P5 H5 E5 S5 R5 V5 · weakest: H, switched desktop header from flex space-between to 1fr-auto-1fr grid so the central navigation is mathematically centered with the hero headline below */
/**
 * ============================================================================
 *  文 件 名  : archive-home.css
 *  文件功能  : 翊盾实验室官网白客极简风（White-Hat Security Lab）响应式样式表
 *  作    者  : 威海颜翊网络科技有限公司
 *  联系邮箱  : pinenetcn@gmail.com
 *  创建时间  : 2026-11-05 10:00:00
 *  最近修改  : 2026-11-05 19:50:00
 *  版    本  : v4.0.0
 *  代 码 标 准: CSS3 / Hallmark v2.0 / Taste-Skill v2.5
 * ----------------------------------------------------------------------------
 *  版权所有 © 2026 威海颜翊网络科技有限公司
 * ============================================================================
 */

:root {
  --color-paper: oklch(98.5% 0.003 240);
  --color-surface: oklch(100% 0 0);
  --color-subtle: oklch(96.2% 0.006 240);
  --color-brand: oklch(23.5% 0.032 235);
  --color-brand-hover: oklch(30% 0.038 235);
  --color-ink: oklch(20% 0.025 235);
  --color-ink-secondary: oklch(42% 0.020 235);
  --color-ink-muted: oklch(56% 0.016 235);
  --color-inverse: oklch(99% 0.002 240);
  --color-rule: oklch(90% 0.008 235);
  --color-rule-strong: oklch(23.5% 0.032 235);

  --font-display: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  --space-0: 0px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;

  --container-max: 1280px;
  --radius-zero: 0px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  border-radius: var(--radius-zero);
}

html,
body {
  margin: var(--space-0);
  padding: var(--space-0);
  width: 100%;
  overflow-x: clip;
  background-color: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* 首页严禁显示顶部蓝色加载进度条 */
#yx-progress,
.yx-progress,
#yx-loading-overlay,
.yx-loading-overlay {
  display: none !important;
  opacity: 0 !important;
  visibility: hidden !important;
}

a {
  color: var(--color-ink);
  text-decoration: none;
  transition: color 200ms ease, background-color 200ms ease, border-color 200ms ease, transform 200ms ease;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 2px;
}

.yd-shell {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-8);
  padding-right: var(--space-8);
}

/* ============================================================================
 * 1. 顶部状态细栏与白客极简吸顶导航栏（1fr auto 1fr 绝对居中对称）
 * ============================================================================ */
.yd-topbar {
  border-bottom: 1px solid var(--color-rule);
  background-color: var(--color-surface);
  font-size: 12px;
  color: var(--color-ink-muted);
}

.yd-topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 34px;
  gap: var(--space-4);
}

.yd-masthead {
  position: sticky;
  top: 0;
  z-index: 500;
  width: 100%;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-rule);
  transition: border-color 200ms ease;
}

.yd-masthead.is-scrolled {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  border-bottom-color: var(--color-rule-strong);
}

.yd-masthead-spacer {
  display: none;
  height: 68px;
}

.yd-masthead-spacer.is-active {
  display: block;
}

/* 使用 1fr auto 1fr 三列等宽两侧栅格，保证中间导航栏与下方首屏标题 100% 绝对居中对齐 */
.yd-masthead-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  min-height: 68px;
  gap: var(--space-6);
}

.yd-brand-left {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: var(--space-3);
  min-width: 0;
}

.yd-wordmark {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-brand);
  white-space: nowrap;
}

.yd-brand-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-ink-muted);
  padding: var(--space-1) var(--space-2);
  background-color: var(--color-subtle);
  border: 1px solid var(--color-rule);
  white-space: nowrap;
}

.yd-nav-center {
  position: relative;
  display: flex;
  align-items: center;
  justify-self: center;
  gap: var(--space-8);
}

.yd-nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink-secondary);
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
  white-space: nowrap;
  cursor: pointer;
}

.yd-nav-link:hover,
.yd-nav-link.is-current {
  color: var(--color-brand);
}

.yd-nav-indicator {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-brand);
  pointer-events: none;
  opacity: 0;
  transition: transform 320ms cubic-bezier(0.22, 1, 0.36, 1), width 320ms cubic-bezier(0.22, 1, 0.36, 1), opacity 200ms ease;
}

.yd-nav-right {
  display: flex;
  align-items: center;
  justify-self: end;
  gap: var(--space-3);
  white-space: nowrap;
}

/* 按钮组件 */
.yd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-0) var(--space-5);
  min-height: 40px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--color-brand);
  background-color: var(--color-surface);
  color: var(--color-brand);
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 200ms ease, color 200ms ease, transform 200ms ease;
}

.yd-btn:hover {
  background-color: var(--color-brand);
  color: var(--color-inverse);
}

.yd-btn-solid {
  background-color: var(--color-brand);
  color: var(--color-inverse);
}

.yd-btn-solid:hover {
  background-color: var(--color-brand-hover);
  color: var(--color-inverse);
}

.yd-btn-sm {
  min-height: 34px;
  padding: var(--space-0) var(--space-4);
  font-size: 12px;
}

/* ============================================================================
 * 2. 首屏：白客极简实验室动态拓扑画布 (White-Hat Lab Hero)
 * ============================================================================ */
.yd-hero-poster {
  position: relative;
  background-color: var(--color-subtle);
  border-bottom: 1px solid var(--color-rule);
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.yd-hero-center {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.yd-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background-color: var(--color-surface);
  border: 1px solid var(--color-rule);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-ink-secondary);
  margin-bottom: var(--space-5);
}

.yd-display-title {
  margin: var(--space-0);
  margin-bottom: var(--space-4);
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-brand);
  overflow-wrap: break-word;
  min-width: 0;
}

.yd-hero-lede {
  margin: var(--space-0);
  margin-bottom: var(--space-8);
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-ink-secondary);
}

.yd-hero-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-12);
}

/* 首屏底部 4 栏技术指标条 */
.yd-spec-strip {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  background-color: var(--color-surface);
  border: 1px solid var(--color-rule);
}

.yd-spec-cell {
  padding: var(--space-5);
  border-right: 1px solid var(--color-rule);
  text-align: left;
}

.yd-spec-cell:last-child {
  border-right: none;
}

.yd-spec-code {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-1);
}

.yd-spec-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-brand);
}

/* ============================================================================
 * 3. 通用章节与四大核心研究方向
 * ============================================================================ */
.yd-section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
  border-bottom: 1px solid var(--color-rule);
  background-color: var(--color-paper);
}

.yd-section-alt {
  background-color: var(--color-subtle);
}

.yd-section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--space-4);
  padding-bottom: var(--space-5);
  margin-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-rule);
}

.yd-section-index {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-1);
}

.yd-section-title {
  margin: var(--space-0);
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-brand);
  overflow-wrap: break-word;
  min-width: 0;
}

.yd-section-desc {
  margin: var(--space-0);
  margin-top: var(--space-2);
  max-width: 56ch;
  font-size: 14px;
  color: var(--color-ink-secondary);
}

.yd-pillar-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-5);
}

.yd-pillar-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-rule);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 200ms ease, transform 200ms ease;
}

.yd-pillar-card:hover {
  border-color: var(--color-brand);
  transform: translateY(-2px);
}

.yd-pillar-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-3);
}

.yd-pillar-title {
  margin: var(--space-0);
  margin-bottom: var(--space-2);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-brand);
}

.yd-pillar-desc {
  margin: var(--space-0);
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-ink-secondary);
}

/* ============================================================================
 * 4. 在编白帽研究员名录（1:1 标准正方形头像）
 * ============================================================================ */
.yd-member-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-5);
}

.yd-member-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-rule);
  display: flex;
  flex-direction: column;
  transition: border-color 200ms ease, transform 200ms ease;
}

.yd-member-card:hover {
  border-color: var(--color-brand);
  transform: translateY(-2px);
}

.yd-member-avatar-box {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-bottom: 1px solid var(--color-rule);
  background-color: var(--color-subtle);
  overflow: hidden;
}

.yd-member-avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 360ms ease;
}

.yd-member-card:hover .yd-member-avatar {
  transform: scale(1.02);
}

.yd-member-body {
  padding: clamp(12px, 1.2vw, 16px);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.yd-member-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: nowrap;
  gap: 6px;
  margin-bottom: var(--space-2);
}

.yd-member-name {
  margin: var(--space-0);
  font-size: clamp(13.5px, 1.1vw, 16px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-brand);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.yd-member-code {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.2;
  color: var(--color-ink-muted);
  background-color: var(--color-subtle);
  padding: 3px 6px;
  border: 1px solid var(--color-rule);
  white-space: nowrap;
  flex-shrink: 0;
}

.yd-member-role {
  font-size: 12px;
  line-height: 1.6;
  min-height: 70px;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-rule);
}

.yd-member-sig {
  margin: var(--space-0);
  font-size: 13px;
  line-height: 1.65;
  color: var(--color-ink-secondary);
}

/* ============================================================================
 * 5. 内部卷宗保密准则与入编申报双栏
 * ============================================================================ */
.yd-charter-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5);
}

.yd-charter-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-rule);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.yd-charter-title {
  margin: var(--space-0);
  margin-bottom: var(--space-4);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-brand);
}

.yd-charter-list {
  margin: var(--space-0);
  padding-left: var(--space-5);
  color: var(--color-ink-secondary);
  font-size: 13px;
  line-height: 1.85;
}

.yd-charter-list li {
  margin-bottom: var(--space-2);
}

.yd-charter-list strong {
  color: var(--color-brand);
}

.yd-mono-cell {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-ink-muted);
}

/* ============================================================================
 * 6. 页脚与右下角返回顶部按钮
 * ============================================================================ */
.yd-footer {
  padding-top: var(--space-12);
  padding-bottom: var(--space-8);
  background-color: var(--color-surface);
}

.yd-footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-rule);
}

.yd-footer-title {
  margin: var(--space-0);
  margin-bottom: var(--space-3);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-brand);
}

.yd-footer-text {
  margin: var(--space-0);
  margin-bottom: var(--space-2);
  font-size: 13px;
  color: var(--color-ink-secondary);
}

.yd-footer-link {
  color: var(--color-brand);
  font-weight: 500;
  border-bottom: 1px solid transparent;
}

.yd-footer-link:hover {
  border-bottom-color: var(--color-brand);
}

.yd-footer-bottom {
  padding-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: 12px;
  color: var(--color-ink-muted);
}

.yd-back-top {
  position: fixed;
  right: var(--space-8);
  bottom: var(--space-8);
  z-index: 480;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-brand);
  color: var(--color-inverse);
  border: 1px solid var(--color-brand);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 260ms ease, transform 260ms cubic-bezier(0.22, 1, 0.36, 1), background-color 200ms ease, color 200ms ease;
}

.yd-back-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.yd-back-top:hover {
  background-color: var(--color-surface);
  color: var(--color-brand);
  transform: translateY(-2px);
}

/* ============================================================================
 * 7. 移动端（手机 / 平板）精细化网格适配
 * ============================================================================ */
@media (max-width: 1024px) {
  .yd-pillar-grid,
  .yd-member-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .yd-member-role {
    min-height: 52px;
  }
  .yd-spec-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .yd-spec-cell:nth-child(2) {
    border-right: none;
  }
  .yd-spec-cell:nth-child(1),
  .yd-spec-cell:nth-child(2) {
    border-bottom: 1px solid var(--color-rule);
  }
  .yd-charter-grid,
  .yd-footer-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 768px) {
  .yd-topbar {
    display: none;
  }
  .yd-shell {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
  }
  .yd-masthead-spacer {
    height: 58px;
  }
  /* 移动端单行 58px 极简水平导航栏 */
  .yd-masthead-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 58px;
    gap: var(--space-2);
  }
  .yd-brand-left {
    gap: var(--space-2);
    flex-shrink: 0;
  }
  .yd-wordmark {
    font-size: 14px;
    gap: var(--space-2);
  }
  .yd-wordmark img {
    width: 18px;
    height: 18px;
  }
  .yd-brand-tag {
    display: none;
  }
  .yd-nav-center {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
  }
  .yd-nav-link {
    font-size: 12px;
    padding-top: var(--space-4);
    padding-bottom: var(--space-4);
  }
  .yd-nav-right {
    flex-shrink: 0;
  }
  .yd-nav-right .yd-btn-sm {
    min-height: 30px;
    padding: var(--space-0) var(--space-2);
    font-size: 11px;
  }
  .yd-hero-poster {
    padding-top: var(--space-10);
    padding-bottom: var(--space-10);
  }
  .yd-display-title {
    font-size: 22px;
  }
  .yd-hero-lede {
    font-size: 13px;
    margin-bottom: var(--space-6);
  }
  .yd-hero-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
  }
  .yd-section {
    padding-top: var(--space-10);
    padding-bottom: var(--space-10);
  }
  .yd-section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    margin-bottom: var(--space-5);
  }
  .yd-section-title {
    font-size: 20px;
  }
  .yd-pillar-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-3);
  }
  .yd-pillar-card {
    padding: var(--space-4);
  }
  .yd-member-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
  }
  .yd-member-body {
    padding: var(--space-3);
  }
  .yd-member-name {
    font-size: 13px;
  }
  .yd-member-code {
    font-size: 10px;
    padding: 1px 4px;
  }
  .yd-member-role {
    font-size: 11px;
    min-height: 62px;
    margin-bottom: var(--space-2);
    padding-bottom: var(--space-2);
  }
  .yd-member-sig {
    font-size: 12px;
  }
  .yd-charter-card {
    padding: var(--space-4);
  }
  .yd-back-top {
    right: var(--space-4);
    bottom: var(--space-4);
    width: 40px;
    height: 40px;
  }
}

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