:root {
  --bg-primary: #080c14;
  --bg-secondary: #0f172a;
  --bg-card: rgba(15, 23, 42, 0.65);
  --border-color: rgba(255, 255, 255, 0.05);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --brand-cyan: #06b6d4;
  --brand-blue: #3b82f6;
  --brand-purple: #a855f7;
  --accent-green: #10b981;
  --accent-gold: #f59e0b;
  --accent-rose: #f43f5e;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 顶部导航与流线型装饰 */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 12, 20, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.25rem;
  background: linear-gradient(135deg, var(--brand-cyan) 0%, var(--brand-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.03em;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--brand-cyan);
}

.nav-links a.active {
  color: var(--brand-cyan);
  font-weight: 700;
  position: relative;
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-cyan), var(--brand-blue));
  border-radius: 99px;
  box-shadow: 0 0 8px rgba(6, 182, 212, 0.6);
}

.cta-button {
  background: linear-gradient(135deg, var(--brand-cyan) 0%, var(--brand-blue) 100%);
  color: #fff;
  border: none;
  padding: 0.5rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.2);
  transition: all 0.3s;
  text-decoration: none;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(6, 182, 212, 0.4);
}

/* 主视觉 (Hero Banner) */
section.hero {
  position: relative;
  min-height: 85vh;
  padding: 6rem 2rem 4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(to bottom, rgba(8, 12, 20, 0.3) 0%, var(--bg-primary) 100%);
  z-index: 1;
}

.hero-image-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('intelligent_pole_banner.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  filter: blur(1px);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 900px;
  text-align: center;
}

.association-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(168, 85, 247, 0.1);
  border: 1px solid rgba(168, 85, 247, 0.2);
  color: #c084fc;
  padding: 0.5rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 2rem;
  letter-spacing: 0.5px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.05em;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #fff 30%, #e2e8f0 70%, var(--brand-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 3rem;
  font-weight: 450;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
}

.secondary-button {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
}

.secondary-button:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

/* 主体布局 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* 核心标准介绍卡片 */
section.standards {
  padding: 6rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 4.5rem;
}

.section-tag {
  color: var(--brand-cyan);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.75rem;
  display: block;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.standards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
}

.standard-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 3rem;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.standard-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--brand-cyan), var(--brand-blue));
  opacity: 0.7;
}

.standard-card.alt::before {
  background: linear-gradient(90deg, var(--brand-blue), var(--brand-purple));
}

.standard-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.card-num {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.card-english-title {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.4;
  margin-bottom: 2rem;
}

.meta-row {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.meta-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.meta-badge.highlight-cyan {
  background: rgba(6, 182, 212, 0.08);
  border-color: rgba(6, 182, 212, 0.2);
  color: var(--brand-cyan);
}

.meta-badge.highlight-purple {
  background: rgba(168, 85, 247, 0.08);
  border-color: rgba(168, 85, 247, 0.2);
  color: #c084fc;
}

.tech-details {
  margin-bottom: 3rem;
  flex: 1;
}

.tech-details h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tech-details h4::before {
  content: "▸";
  color: var(--brand-cyan);
  font-weight: bold;
}

.tech-details ul {
  list-style: none;
  padding-left: 1.25rem;
}

.tech-details li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  position: relative;
}

.tech-details li::before {
  content: "•";
  position: absolute;
  left: -1rem;
  color: var(--text-muted);
}

/* 价值参编/加分说明板块 */
section.benefits {
  background: var(--bg-secondary);
  padding: 6rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.benefits-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.benefits-content h3 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.benefits-content p {
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  font-size: 1.05rem;
}

.benefit-item {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.benefit-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-cyan);
  font-weight: 700;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.benefit-text h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.benefit-text p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0;
  line-height: 1.5;
}

/* 参编意向登记表单 */
section.registration {
  padding: 6rem 0;
}

.form-wrapper {
  max-width: 650px;
  margin: 0 auto;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  padding: 4rem;
  border-radius: 20px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.form-wrapper h3 {
  font-size: 1.8rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 1rem;
}

.form-desc {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  font-size: 0.95rem;
}

.form-group {
  margin-bottom: 1.75rem;
}

.form-group.checkbox-group {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 8px;
  margin-bottom: 2rem;
}

.checkbox-label-header {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.checkbox-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
  cursor: pointer;
}

.checkbox-item:last-child {
  margin-bottom: 0;
}

.checkbox-item input {
  width: 16px !important;
  height: 16px !important;
  margin-top: 0.25rem;
  cursor: pointer;
  flex-shrink: 0;
}

.checkbox-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.checkbox-text strong {
  color: var(--text-primary);
}

.form-group label.field-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(8, 12, 20, 0.5);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.85rem 1.25rem;
  border-radius: 8px;
  font-size: 0.95rem;
  transition: all 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--brand-cyan);
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.15);
  background: rgba(8, 12, 20, 0.8);
}

.submit-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--brand-cyan) 0%, var(--brand-blue) 100%);
  color: #fff;
  border: none;
  padding: 1rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 10px 20px rgba(6, 182, 212, 0.15);
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px rgba(6, 182, 212, 0.35);
}

.submit-btn:disabled {
  background: #334155;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* 底部声明 */
footer.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 4rem 0;
  text-align: center;
  background: #06090e;
}

.footer-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.8;
}

/* 响应式样式适配 */
@media (max-width: 1024px) {
  .standards-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .benefits-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .form-wrapper {
    padding: 2.5rem;
  }
}

/* ==================== 加分实时估算器 CSS 样式 ==================== */
.calc-container {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 28px;
  margin-top: 2rem;
}

@media (max-width: 1024px) {
  .calc-container {
    grid-template-columns: 1fr;
  }
}

.calc-items-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (max-width: 768px) {
  .calc-items-grid {
    grid-template-columns: 1fr;
  }
}

.calc-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: all 0.3s;
  position: relative;
  user-select: none;
  gap: 12px;
}

.calc-item:hover {
  border-color: var(--brand-cyan);
  background: rgba(6, 182, 212, 0.04);
}

.calc-item.selected {
  background: rgba(6, 182, 212, 0.08);
  border-color: var(--brand-cyan);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.1);
}

.calc-item-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.calc-checkbox {
  width: 18px;
  height: 18px;
  border: 2px solid var(--text-muted);
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
  background: var(--bg-primary);
  flex-shrink: 0;
}

.calc-item.selected .calc-checkbox {
  background: var(--brand-cyan);
  border-color: var(--brand-cyan);
}

.calc-checkbox::after {
  content: "✓";
  color: #080c14;
  font-size: 11px;
  font-weight: 900;
  opacity: 0;
  transform: scale(0.5);
  transition: all 0.3s;
}

.calc-item.selected .calc-checkbox::after {
  opacity: 1;
  transform: scale(1);
}

.calc-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.calc-label span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-top: 2px;
}

.calc-score-badge {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  padding: 3px 12px;
  border-radius: 40px;
  font-size: 0.8rem;
  font-weight: 700;
  transition: all 0.3s;
  white-space: nowrap;
  flex-shrink: 0;
}

.calc-item.selected .calc-score-badge {
  background: var(--brand-cyan);
  color: #080c14;
}

/* 结果展示卡 */
.calc-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 3rem 2rem;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
  text-align: center;
  position: sticky;
  top: 100px;
  height: fit-content;
}

.calc-card h3 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.calc-visual {
  position: relative;
  width: 140px;
  height: 140px;
  margin: 0 auto 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.calc-svg {
  transform: rotate(-90deg);
  width: 100%;
  height: 100%;
}

.calc-svg circle {
  fill: none;
  stroke-width: 6;
}

.calc-svg-bg {
  stroke: rgba(255, 255, 255, 0.05);
}

.calc-svg-progress {
  stroke: var(--brand-cyan);
  stroke-dasharray: 340;
  stroke-dashoffset: 340;
  transition: stroke-dashoffset 0.5s cubic-bezier(0.1, 1, 0.1, 1);
  stroke-linecap: round;
}

.calc-number-box {
  position: absolute;
  text-align: center;
}

.calc-number {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  background: linear-gradient(135deg, #fff 0%, var(--brand-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.calc-unit {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 600;
  margin-top: 4px;
}

.calc-detail {
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
  margin-top: 1rem;
}

.calc-detail-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 4px 0;
}

.calc-detail-value {
  font-weight: 700;
  color: var(--brand-cyan);
}

.calc-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 1.5rem;
}

/* ==================== 模态弹窗样式 ==================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(8, 12, 20, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.modal-content {
  position: relative;
  width: 100%;
  max-width: 650px;
  max-height: 85vh;
  overflow-y: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 3.5rem 3rem !important;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6);
  animation: scaleIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* 自定义滚动条 */
.modal-content::-webkit-scrollbar {
  width: 6px;
}
.modal-content::-webkit-scrollbar-track {
  background: transparent;
}
.modal-content::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 99px;
}
.modal-content::-webkit-scrollbar-thumb:hover {
  background: var(--brand-cyan);
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 2rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.3s;
  line-height: 1;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
}

.modal-close-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  transform: rotate(90deg);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.92) translateY(30px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.association-badge.cyan-badge {
  background: rgba(6, 182, 212, 0.08) !important;
  border: 1px solid rgba(6, 182, 212, 0.2) !important;
  color: var(--brand-cyan) !important;
}

/* ==================== 标准大纲项目卡片 (借鉴 standards-projects 规范) ==================== */
.standards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
  margin-top: 3rem;
}

@media (max-width: 1024px) {
  .standards-grid {
    grid-template-columns: 1fr;
  }
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-card:hover {
  border-color: var(--brand-cyan);
  box-shadow: 0 20px 40px rgba(6, 182, 212, 0.15);
  transform: translateY(-4px);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  gap: 12px;
}

.project-title-block {
  flex: 1;
}

.project-title-block h2 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.project-title-en {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
  text-transform: uppercase;
}

.project-badge {
  background: rgba(6, 182, 212, 0.08);
  color: var(--brand-cyan);
  border: 1px solid rgba(6, 182, 212, 0.2);
  padding: 0.35rem 1rem;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
}

.project-card.alt .project-badge {
  background: rgba(168, 85, 247, 0.08);
  color: #c084fc;
  border: 1px solid rgba(168, 85, 247, 0.2);
}

.project-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-color);
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
}

@media (max-width: 480px) {
  .project-meta {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}

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

.meta-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.meta-value {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
}

.project-content {
  flex: 1;
}

.project-content h3 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 1.5rem 0 0.5rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.project-content h3::before {
  content: "";
  width: 4px;
  height: 14px;
  background: var(--brand-cyan);
  border-radius: 4px;
}

.project-card.alt .project-content h3::before {
  background: #a855f7;
}

.project-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  text-align: justify;
}

.project-content ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 1rem 0;
}

.project-content ul li {
  padding: 10px 12px 10px 28px;
  position: relative;
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.01);
  border-radius: 8px;
  border: 1px solid var(--border-color);
  transition: all 0.3s;
}

.project-content ul li::before {
  content: "✓";
  position: absolute;
  left: 12px;
  color: var(--brand-cyan);
  font-weight: 900;
}

.project-card.alt .project-content ul li::before {
  color: #a855f7;
}

.project-content ul li:hover {
  border-color: var(--brand-cyan);
  background: rgba(6, 182, 212, 0.03);
}

.project-card.alt .project-content ul li:hover {
  border-color: #a855f7;
  background: rgba(168, 85, 247, 0.03);
}

/* 下载组件 */
.download-section {
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  margin-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

@media (max-width: 580px) {
  .download-section {
    flex-direction: column;
    text-align: center;
  }
}

.download-info {
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
}

.download-icon-box {
  font-size: 1.5rem;
  line-height: 1;
}

.download-info h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
}

.download-info p {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.download-actions {
  display: flex;
  gap: 8px;
}

.download-button {
  background: var(--brand-cyan);
  color: #080c14;
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  transition: all 0.3s;
  cursor: pointer;
  border: none;
  display: inline-flex;
  align-items: center;
}

.download-button:hover {
  background: #fff;
  transform: translateY(-2px);
}

.download-button.secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.download-button.secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--brand-cyan);
}