/* 
  溯心 (SoulTrace) - 全景门户与量表落地页样式系统 (Portal & Landing CSS)
  极简原生加载 · 零框架运行时依赖 · 现代暗黑毛玻璃美学 (Dark Glassmorphism)
*/

:root {
  --bg-gradient: radial-gradient(circle at 0% 0%, #16172e 0%, #0a0b12 100%);
  --accent-color: #6366f1; /* 经典靛蓝 */
  --accent-glow: rgba(99, 102, 241, 0.4);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --glass-bg: rgba(26, 28, 48, 0.6);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-highlight: rgba(255, 255, 255, 0.16);
  --card-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.45);
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "WenQuanYi Micro Hei", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  
  /* 品牌与维度色板 */
  --color-indigo: #6366f1;
  --color-emerald: #10b981;
  --color-amber: #f59e0b;
  --color-rose: #f43f5e;
  --color-blue: #3b82f6;
  --color-purple: #a855f7;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
}

body {
  font-family: var(--font-family);
  background: var(--bg-gradient);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  overflow-y: scroll;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 30px 16px 60px 16px;
  box-sizing: border-box;
  line-height: 1.6;
}

/* 发光球环境背景动效 */
.bg-glow-orb {
  position: fixed;
  width: 55vw;
  height: 55vw;
  border-radius: 50%;
  filter: blur(140px);
  z-index: -1;
  opacity: 0.35;
  pointer-events: none;
  animation: orbFloat 22s infinite alternate ease-in-out;
}

.orb-1 {
  background: radial-gradient(circle, #4f46e5 0%, transparent 70%);
  top: -15%;
  left: -10%;
}

.orb-2 {
  background: radial-gradient(circle, #7c3aed 0%, transparent 70%);
  bottom: -15%;
  right: -10%;
  animation-delay: -11s;
}

@keyframes orbFloat {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(8%, 8%) scale(1.12); }
}

/* 主容器 */
.app-container {
  width: 1100px;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  z-index: 1;
  box-sizing: border-box;
}

/* 顶部导航 Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  padding: 12px 20px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  backdrop-filter: blur(12px);
}

.brand-link {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.app-title {
  font-size: 1.4rem;
  font-weight: 800;
  background: linear-gradient(135deg, #a5b4fc 0%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.5px;
}

.app-subtitle {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-secondary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-link-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: 7px 16px;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.25s ease;
}

.nav-link-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border-color: var(--glass-highlight);
}

.history-badge {
  background: var(--accent-color);
  color: #fff;
  font-size: 0.72rem;
  padding: 1px 6px;
  border-radius: 10px;
}

/* 1. Hero 看板 */
.hub-hero-section {
  position: relative;
  border-radius: 28px;
  padding: 60px 48px;
  background: linear-gradient(180deg, rgba(30, 32, 58, 0.7) 0%, rgba(18, 19, 36, 0.85) 100%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(20px);
  margin-bottom: 36px;
  overflow: hidden;
}

.hero-badge-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.scale-code-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border-radius: 8px;
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.5px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  cursor: default;
}
.scale-code-badge:hover {
  transform: translateY(-1px);
}

.badge-ipip { background: rgba(59, 130, 246, 0.18); border: 1px solid rgba(59, 130, 246, 0.4); color: #93c5fd; }
.badge-mbti { background: rgba(168, 85, 247, 0.18); border: 1px solid rgba(168, 85, 247, 0.4); color: #d8b4fe; }
.badge-16pf { background: rgba(6, 182, 212, 0.18); border: 1px solid rgba(6, 182, 212, 0.4); color: #67e8f9; }
.badge-holland { background: rgba(245, 158, 11, 0.18); border: 1px solid rgba(245, 158, 11, 0.4); color: #fde047; }
.badge-onet { background: rgba(16, 185, 129, 0.18); border: 1px solid rgba(16, 185, 129, 0.4); color: #6ee7b7; }

.hero-subtag {
  font-size: 0.88rem;
  font-weight: 700;
  color: #a5b4fc;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
  padding: 4px 12px;
  border-radius: 20px;
}

.hero-title {
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 18px;
  letter-spacing: -0.8px;
}

.hero-title-highlight {
  background: linear-gradient(135deg, #ffffff 0%, #a5b4fc 60%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 820px;
  line-height: 1.65;
  margin-bottom: 36px;
}

/* 四大科学基石 */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.pillar-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 20px 18px;
  transition: all 0.3s ease;
}

.pillar-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--glass-highlight);
  transform: translateY(-2px);
}

.pillar-icon {
  font-size: 1.6rem;
  margin-bottom: 10px;
}

.pillar-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.pillar-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.45;
}

/* 2. 吸顶快速导航条 */
.hub-sticky-nav {
  position: sticky;
  top: 16px;
  z-index: 50;
  margin-bottom: 36px;
  background: rgba(18, 20, 36, 0.88);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px);
  border-radius: 16px;
  padding: 8px 12px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

.nav-pills-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav-pills-scroll::-webkit-scrollbar {
  display: none;
}

.nav-pill {
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: 10px;
  white-space: nowrap;
  transition: all 0.25s ease;
}

.nav-pill:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.nav-pill.active {
  color: #fff;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.4) 0%, rgba(168, 85, 247, 0.4) 100%);
  border: 1px solid rgba(99, 102, 241, 0.5);
  box-shadow: 0 0 14px rgba(99, 102, 241, 0.3);
}

/* 断点恢复条 */
.saved-session-banner {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.18) 0%, rgba(168, 85, 247, 0.15) 100%);
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: 18px;
  padding: 18px 24px;
  margin-bottom: 36px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.saved-banner-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.saved-banner-icon {
  font-size: 1.8rem;
}

.saved-banner-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 2px;
}

.saved-banner-sub {
  font-size: 0.85rem;
  color: #c7d2fe;
}

.saved-banner-actions {
  display: flex;
  gap: 10px;
}

.btn-banner-resume {
  background: var(--accent-color);
  color: #fff;
  border: none;
  padding: 9px 20px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  box-shadow: 0 4px 14px var(--accent-glow);
  transition: all 0.25s ease;
}

.btn-banner-resume:hover {
  transform: translateY(-1px);
  filter: brightness(1.1);
}

.btn-banner-discard {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: 9px 16px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
}

/* 通用章节与落地页卡片 */
.hub-section {
  margin-bottom: 48px;
  scroll-margin-top: 80px;
}

.section-header {
  margin-bottom: 24px;
}

.section-tag {
  font-size: 0.8rem;
  font-weight: 800;
  color: #818cf8;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.section-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 选测向导网格 */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.guide-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  padding: 24px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.guide-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--glass-highlight);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
}

.guide-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.guide-icon {
  font-size: 1.8rem;
}

.guide-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.guide-situation {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 16px;
}

.guide-recommend {
  font-size: 0.85rem;
  color: #a5b4fc;
  font-weight: 600;
}

/* 5 大量表项目展示卡片 */
.project-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(16px);
  margin-bottom: 36px;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
  border-color: var(--glass-highlight);
}

.project-cover-banner {
  position: relative;
  height: 260px;
  overflow: hidden;
}

.project-banner-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .project-banner-img {
  transform: scale(1.03);
}

.project-banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 15, 26, 0.2) 0%, rgba(14, 15, 26, 0.95) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px;
}

.project-tag-row {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.project-tag {
  font-size: 0.76rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  backdrop-filter: blur(8px);
}

.project-main-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
}

.project-body {
  padding: 32px;
}

.project-quote {
  font-size: 0.98rem;
  color: #cbd5e1;
  font-style: italic;
  line-height: 1.6;
  margin-bottom: 24px;
  padding-left: 16px;
  border-left: 3px solid var(--accent-color);
}

.project-meta-pills {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.meta-pill {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 12px 14px;
}

.meta-pill-label {
  font-size: 0.76rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 2px;
}

.meta-pill-val {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
}

.project-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 10px;
}

.btn-start-scale {
  background: var(--accent-color);
  color: #fff;
  border: none;
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.96rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 16px var(--accent-glow);
  transition: all 0.25s ease;
  text-decoration: none;
}

.btn-start-scale:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
}

.btn-detail-link {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: 14px 22px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-detail-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border-color: var(--glass-highlight);
}

/* 按钮专属色彩 */
.btn-emerald { background: #10b981; box-shadow: 0 4px 16px rgba(16, 185, 129, 0.4); }
.btn-amber { background: #f59e0b; box-shadow: 0 4px 16px rgba(245, 158, 11, 0.4); }
.btn-rose { background: #f43f5e; box-shadow: 0 4px 16px rgba(244, 63, 94, 0.4); }
.btn-blue { background: #3b82f6; box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4); }

/* FAQ 折叠问答 */
.faq-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 20px 24px;
}

.faq-q {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.faq-a {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 底部 Footer */
.hub-footer {
  margin-top: 40px;
  padding: 30px 20px;
  border-top: 1px solid var(--glass-border);
  text-align: center;
}

.footer-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: 860px;
  margin: 0 auto 16px auto;
  line-height: 1.6;
}

.footer-copy {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* 居中模态弹窗系统 (Fixed Screen Center) */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 6, 12, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.setup-modal-card {
  width: 520px;
  max-width: 95vw;
  background: rgba(20, 22, 38, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 22px;
  padding: 32px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.6);
  transform: scale(0.94);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-backdrop.active .setup-modal-card {
  transform: scale(1);
}

.setup-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.setup-modal-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
}

.setup-scale-badge {
  font-size: 0.78rem;
  font-weight: 700;
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.4);
  padding: 3px 8px;
  border-radius: 6px;
}

.close-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
  border-radius: 8px;
  transition: color 0.2s;
}

.close-btn:hover {
  color: #fff;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  color: #fff;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.95rem;
  outline: none;
  font-family: inherit;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.form-input:focus {
  border-color: var(--accent-color);
  background: rgba(255, 255, 255, 0.08);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.btn-primary {
  background: var(--accent-color);
  color: #fff;
  border: none;
  padding: 12px 24px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  box-shadow: 0 4px 14px var(--accent-glow);
  transition: all 0.25s ease;
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: 12px 20px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

/* ==================== 移动端组件系统 ==================== */

/* 移动端汉堡菜单按钮 (桌面隐藏) */
.mobile-menu-btn {
  display: none;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  width: 38px;
  height: 38px;
  padding: 8px;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  transition: all 0.25s ease;
}

.mobile-menu-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--glass-highlight);
}

.menu-icon-bar {
  display: block;
  width: 18px;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: all 0.25s ease;
}

/* 移动端抽屉导航 (Mobile Drawer) */
.mobile-drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(8, 10, 20, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  justify-content: flex-end;
}

.mobile-drawer-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer-content {
  width: 86vw;
  max-width: 360px;
  height: 100%;
  background: rgba(18, 20, 36, 0.96);
  border-left: 1px solid var(--glass-border);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.65);
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  box-sizing: border-box;
  padding: 22px 18px calc(24px + env(safe-area-inset-bottom));
}

.mobile-drawer-overlay.active .mobile-drawer-content {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--glass-border);
}

.mobile-drawer-brand {
  font-size: 1.15rem;
  font-weight: 800;
  background: linear-gradient(135deg, #a5b4fc 0%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.mobile-drawer-close {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.mobile-drawer-close:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

/* 抽屉用户状态卡片 */
.mobile-user-card {
  margin-bottom: 22px;
}

.mobile-user-profile {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 12px 14px;
}

.mobile-user-avatar {
  font-size: 1.5rem;
  background: rgba(99, 102, 241, 0.2);
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(99, 102, 241, 0.4);
  flex-shrink: 0;
}

.mobile-user-detail {
  overflow: hidden;
}

.mobile-user-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mobile-user-quota {
  font-size: 0.78rem;
  color: #a5b4fc;
}

.mobile-guest-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12) 0%, rgba(168, 85, 247, 0.12) 100%);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 14px;
  padding: 12px 14px;
}

.guest-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.guest-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: #fff;
}

.guest-sub {
  font-size: 0.76rem;
  color: var(--text-secondary);
}

/* 抽屉导航组 */
.mobile-nav-group {
  margin-bottom: 22px;
}

.mobile-nav-group-title {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.mobile-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  margin-bottom: 8px;
  transition: all 0.2s ease;
}

.mobile-nav-item:active {
  background: rgba(255, 255, 255, 0.08);
}

.mobile-nav-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.mobile-nav-text {
  flex: 1;
  overflow: hidden;
}

.mobile-nav-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 2px;
}

.mobile-nav-desc {
  font-size: 0.74rem;
  color: var(--text-secondary);
  line-height: 1.3;
}

.mobile-nav-arrow {
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* 抽屉快捷量表标签 */
.mobile-scale-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.mobile-scale-chip {
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  padding: 6px 11px;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.mobile-scale-chip:active {
  background: rgba(99, 102, 241, 0.2);
  color: #fff;
}

/* 抽屉底部操作区 */
.mobile-actions-stack {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-top: 10px;
}

.mobile-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 600;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.mobile-action-btn:active {
  background: rgba(255, 255, 255, 0.1);
}

.mobile-action-btn.btn-admin {
  background: rgba(245, 158, 11, 0.15);
  border-color: rgba(245, 158, 11, 0.4);
  color: #fbbf24;
}

.mobile-action-btn.btn-logout {
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.2);
}

.mobile-login-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 11px 16px;
  border-radius: 12px;
  font-size: 0.92rem;
  font-weight: 700;
  border: none;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  color: #fff;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
}

/* 移动端智能吸底操作栏 (Sticky Bottom CTA) */
.mobile-bottom-cta {
  display: none;
  position: fixed;
  bottom: calc(14px + env(safe-area-inset-bottom));
  left: 14px;
  right: 14px;
  z-index: 900;
  background: rgba(18, 20, 36, 0.9);
  border: 1px solid rgba(99, 102, 241, 0.38);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 16px;
  padding: 10px 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.55), 0 0 20px rgba(99, 102, 241, 0.22);
  align-items: center;
  justify-content: space-between;
  transform: translateY(120%);
  opacity: 0;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s ease;
}

.mobile-bottom-cta.visible {
  transform: translateY(0);
  opacity: 1;
}

.cta-left-box {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
  flex: 1;
  margin-right: 12px;
}

.cta-scale-icon {
  font-size: 1.45rem;
  flex-shrink: 0;
}

.cta-scale-info {
  overflow: hidden;
}

.cta-scale-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cta-scale-meta {
  font-size: 0.72rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-cta-launch {
  flex-shrink: 0;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  border: none;
  color: #fff;
  padding: 9px 15px;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.45);
  transition: all 0.2s ease;
}

.btn-cta-launch:active {
  transform: scale(0.96);
}

/* ==================== 响应式断点系统 ==================== */

@media (max-width: 900px) {
  .pillars-grid {
    grid-template-columns: 1fr 1fr;
  }
  .guide-grid {
    grid-template-columns: 1fr;
  }
  .project-meta-pills {
    grid-template-columns: 1fr 1fr;
  }
  .hero-title {
    font-size: 1.95rem;
  }
}

@media (max-width: 768px) {
  body {
    padding: 16px 12px calc(86px + env(safe-area-inset-bottom)) 12px;
  }

  .app-header {
    padding: 10px 14px;
    margin-bottom: 20px;
  }

  .app-title {
    font-size: 1.15rem;
  }

  .app-subtitle {
    display: none;
  }

  /* 隐藏桌面端平铺的操作栏，显示汉堡按钮 */
  .header-actions {
    display: none !important;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .mobile-bottom-cta {
    display: flex;
  }

  .hub-hero-section {
    padding: 24px 16px;
    margin-bottom: 28px;
  }

  .hero-title {
    font-size: 1.6rem;
    line-height: 1.32;
  }

  .hero-subtitle {
    font-size: 0.9rem;
    line-height: 1.55;
  }

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

  .hub-sticky-nav {
    top: 10px;
    margin-bottom: 24px;
    padding: 6px 8px;
  }

  .nav-pill {
    font-size: 0.82rem;
    padding: 6px 12px;
  }

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

  .guide-card {
    padding: 18px 16px;
  }

  .project-card {
    margin-bottom: 28px;
  }

  .project-cover-banner {
    height: 150px;
  }

  .project-main-title {
    font-size: 1.15rem;
  }

  .project-body {
    padding: 18px 16px;
  }

  .project-quote {
    font-size: 0.88rem;
    line-height: 1.5;
    margin-bottom: 16px;
  }

  .project-meta-pills {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 20px;
  }

  .meta-pill {
    padding: 8px 10px;
  }

  .meta-pill-label {
    font-size: 0.72rem;
  }

  .meta-pill-val {
    font-size: 0.82rem;
  }

  .project-actions {
    flex-direction: column;
    gap: 10px;
  }

  .btn-start-scale, .btn-detail-link {
    width: 100%;
    justify-content: center;
    padding: 12px 16px;
    font-size: 0.92rem;
  }

  .saved-session-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 16px;
  }

  .saved-banner-actions {
    width: 100%;
    display: flex;
    gap: 8px;
  }

  .btn-banner-resume, .btn-banner-discard {
    flex: 1;
    text-align: center;
    justify-content: center;
  }

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

@media (max-width: 480px) {
  .hero-badge-row {
    gap: 6px;
  }

  .scale-code-badge {
    font-size: 0.72rem;
    padding: 2px 7px;
  }

  .hero-subtag {
    font-size: 0.72rem;
  }

  .hero-title {
    font-size: 1.42rem;
  }

  .project-meta-pills {
    grid-template-columns: 1fr;
  }
}