/**
 * iSMART Lab - 低碳建筑材料实验室 Typecho 主题
 *
 * @package iSMART Lab
 * @author iSMART Lab
 * @version 1.0.0
 * @link https://ismart-lab.example.com
 */

/* ========== Reset & Base ========== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: #1e293b;
  line-height: 1.7;
  background: #f8fafc;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ========== Variables ========== */
:root {
  --primary: #1e40af;
  --primary-light: #3b82f6;
  --primary-dark: #0c1e3d;
  --accent: #0ea5e9;
  --accent-green: #10b981;
  --text: #1e293b;
  --text-light: #64748b;
  --bg: #f8fafc;
  --bg-white: #ffffff;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -2px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -4px rgba(0,0,0,.08);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,.1), 0 8px 10px -6px rgba(0,0,0,.08);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all .3s cubic-bezier(.4,0,.2,1);
}

/* ========== Navigation ========== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226,232,240,.8);
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(255,255,255,.95);
  box-shadow: var(--shadow-sm);
}
.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: .5px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  font-weight: 800;
}
.nav-logo span { color: var(--primary-light); }
.nav-links {
  display: flex;
  gap: 2px;
  align-items: center;
}
.nav-links a {
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-light);
  border-radius: 8px;
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  background: rgba(59,130,246,.08);
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--primary-light);
  border-radius: 2px;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ========== Hero Section ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  overflow: hidden;
  padding: 120px 24px 80px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0c1e3d 0%, #1e3a8a 40%, #0369a1 100%);
  z-index: -2;
}
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/usr/uploads/hero-bg-2026.jpg');
  background-size: cover;
  background-position: center;
  opacity: .12;
  mix-blend-mode: overlay;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 80%, rgba(14,165,233,.35) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(59,130,246,.3) 0%, transparent 50%),
              radial-gradient(circle at 50% 50%, rgba(16,185,129,.15) 0%, transparent 60%);
}
.hero-particles {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}
.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(255,255,255,.4);
  border-radius: 50%;
  animation: float 15s infinite ease-in-out;
}
@keyframes float {
  0%, 100% { transform: translateY(0) translateX(0); opacity: .3; }
  50% { transform: translateY(-100px) translateX(20px); opacity: .8; }
}
.hero-content {
  max-width: 960px;
  text-align: center;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
  animation: fadeInUp .8s ease-out;
}
.hero-badge svg { width: 16px; height: 16px; }
.hero-lab-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto 28px;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(255,255,255,.15), rgba(255,255,255,.05));
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  animation: fadeInUp .8s ease-out .05s both;
}
.hero-lab-icon svg { width: 48px; height: 48px; }
.hero-name {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: 2px;
  animation: fadeInUp .8s ease-out .1s both;
}
.hero-name .highlight {
  background: linear-gradient(90deg, #38bdf8, #22d3ee, #34d399);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-title {
  font-size: clamp(16px, 2.5vw, 20px);
  font-weight: 400;
  opacity: .9;
  margin-bottom: 8px;
  animation: fadeInUp .8s ease-out .2s both;
}
.hero-affiliation {
  font-size: clamp(14px, 2vw, 16px);
  opacity: .7;
  margin-bottom: 36px;
  animation: fadeInUp .8s ease-out .3s both;
}
.hero-tagline {
  font-size: clamp(15px, 2.2vw, 18px);
  opacity: .85;
  max-width: 650px;
  margin: 0 auto 48px;
  line-height: 1.8;
  animation: fadeInUp .8s ease-out .4s both;
}
.hero-features {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 48px;
  flex-wrap: wrap;
  animation: fadeInUp .8s ease-out .45s both;
}
.hero-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  opacity: .8;
}
.hero-feature svg {
  width: 18px;
  height: 18px;
  color: #34d399;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp .8s ease-out .5s both;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--primary-light));
  color: #fff;
  box-shadow: 0 4px 15px rgba(14,165,233,.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(14,165,233,.5);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,.1);
  border-color: #fff;
  transform: translateY(-2px);
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}
.scroll-indicator svg {
  width: 24px;
  height: 24px;
  stroke: rgba(255,255,255,.6);
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}

/* ========== Section Common ========== */
.section {
  padding: 100px 24px;
  max-width: 1280px;
  margin: 0 auto;
}
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-light);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 12px;
  padding: 6px 16px;
  background: rgba(59,130,246,.1);
  border-radius: 50px;
}
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-light);
  max-width: 640px;
  margin: 0 auto;
}

/* ========== Lab Intro Section ========== */
.lab-intro {
  background: var(--bg-white);
}
.intro-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: center;
}
.intro-image {
  position: relative;
}
.intro-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}
.intro-image::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  right: 40px;
  bottom: 40px;
  border: 3px solid var(--primary-light);
  border-radius: var(--radius-lg);
  z-index: -1;
  opacity: .3;
}
.intro-content h3 {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 20px;
  line-height: 1.4;
}
.intro-content h3 .highlight {
  color: var(--primary-light);
}
.intro-content > p {
  font-size: 15px;
  color: #475569;
  margin-bottom: 16px;
  text-align: justify;
}
.intro-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 28px;
}
.intro-tag {
  padding: 6px 16px;
  background: linear-gradient(135deg, rgba(59,130,246,.1), rgba(14,165,233,.08));
  border: 1px solid rgba(59,130,246,.2);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 28px 0 0;
  padding: 28px 24px;
  background: linear-gradient(135deg, #f1f5f9, #e0f2fe);
  border-radius: var(--radius);
}
.stat-item {
  text-align: center;
}
.stat-number {
  font-size: 30px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 12px;
  color: var(--text-light);
  line-height: 1.4;
}

/* ========== Research Section ========== */
.research {
  background: var(--bg);
}
.research-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.research-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.research-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-light), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s ease;
}
.research-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.research-card:hover::before {
  transform: scaleX(1);
}
.research-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(59,130,246,.15), rgba(14,165,233,.1));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary);
}
.research-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 12px;
  line-height: 1.5;
}
.research-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}
.research-highlight {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--border);
  font-size: 13px;
  color: var(--accent-green);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ========== Publications Section ========== */
.publications {
  background: var(--bg-white);
}
.tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.tab-btn {
  padding: 12px 28px;
  border: 1px solid var(--border);
  background: var(--bg-white);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-light);
  cursor: pointer;
  transition: var(--transition);
}
.tab-btn:hover {
  border-color: var(--primary-light);
  color: var(--primary);
}
.tab-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(30,64,175,.3);
}
.tab-content { display: none; animation: fadeIn .4s ease; }
.tab-content.active { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.pub-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.pub-item {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 22px 28px;
  border-left: 4px solid var(--primary-light);
  transition: var(--transition);
}
.pub-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}
.pub-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.6;
}
.pub-journal {
  font-size: 13px;
  color: var(--primary-light);
  font-style: italic;
  margin-bottom: 6px;
}
.pub-authors {
  font-size: 13px;
  color: var(--text-light);
}
.pub-authors strong { color: var(--primary); }
.pub-meta {
  margin-top: 8px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.pub-meta span {
  font-size: 12px;
  padding: 2px 8px;
  background: rgba(59,130,246,.1);
  color: var(--primary);
  border-radius: 4px;
}

.patent-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.patent-item {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: var(--transition);
}
.patent-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.patent-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(59,130,246,.15), rgba(14,165,233,.1));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}
.patent-info h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  line-height: 1.5;
}
.patent-info p {
  font-size: 13px;
  color: var(--text-light);
}
.patent-badge {
  display: inline-block;
  margin-top: 8px;
  padding: 3px 10px;
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  color: #92400e;
  font-size: 11px;
  font-weight: 600;
  border-radius: 50px;
}

.project-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.project-row {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 24px;
  background: var(--bg);
  border-radius: var(--radius);
  transition: var(--transition);
}
.project-row:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}
.project-tag {
  flex-shrink: 0;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50px;
  white-space: nowrap;
}
.project-tag.enterprise {
  background: linear-gradient(135deg, #059669, #10b981);
}
.project-info h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.project-info p {
  font-size: 13px;
  color: var(--text-light);
}

.award-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.award-item {
  display: flex;
  gap: 20px;
  padding: 20px 24px;
  background: var(--bg);
  border-radius: var(--radius);
  align-items: flex-start;
  transition: var(--transition);
}
.award-item:hover {
  background: linear-gradient(135deg, rgba(59,130,246,.05), rgba(14,165,233,.05));
  transform: translateX(4px);
}
.award-badge {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.award-content h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.award-content .award-org {
  font-size: 13px;
  color: var(--primary-light);
  font-weight: 500;
}
.award-content .award-date {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 2px;
}

/* ========== Industry-Academia Collaboration ========== */
.collaboration {
  background: linear-gradient(180deg, var(--bg) 0%, #f0f9ff 100%);
  position: relative;
  overflow: hidden;
}
.collaboration::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse at top, rgba(14,165,233,.08) 0%, transparent 70%);
  pointer-events: none;
}
.collab-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: stretch;
  position: relative;
  z-index: 1;
}
.collab-left h3,
.collab-right h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.collab-left h3 svg,
.collab-right h3 svg {
  color: var(--accent);
}
.tech-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.tech-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.tech-card::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--primary-light), var(--accent));
}
.tech-card:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.tech-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(14,165,233,.15), rgba(59,130,246,.1));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}
.tech-info h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 8px;
}
.tech-info p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.6;
}
.tech-meta {
  display: flex;
  gap: 12px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.tech-meta span {
  font-size: 11px;
  padding: 3px 8px;
  background: rgba(16,185,129,.1);
  color: #059669;
  border-radius: 4px;
  font-weight: 600;
}
.partner-wall {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--border);
  margin-bottom: 24px;
}
.partner-wall h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 20px;
}
.partner-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.partner-item {
  aspect-ratio: 2/1;
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-light);
  text-align: center;
  padding: 8px;
  transition: var(--transition);
  border: 1px solid var(--border);
}
.partner-item:hover {
  background: linear-gradient(135deg, rgba(59,130,246,.1), rgba(14,165,233,.08));
  color: var(--primary);
  border-color: var(--primary-light);
  transform: translateY(-2px);
}
.collab-cases {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.case-card {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: var(--radius);
  padding: 20px 24px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.case-card::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(14,165,233,.4) 0%, transparent 70%);
  border-radius: 50%;
}
.case-amount {
  font-size: 28px;
  font-weight: 800;
  color: #34d399;
  margin-bottom: 4px;
}
.case-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
  position: relative;
}
.case-desc {
  font-size: 12px;
  opacity: .7;
  position: relative;
}

/* ========== Team Section ========== */
.team {
  background: var(--bg-white);
}
.team-pi {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 48px;
  align-items: center;
  background: linear-gradient(135deg, #f8fafc, #e0f2fe);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin-bottom: 56px;
  position: relative;
  overflow: hidden;
}
.team-pi::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(59,130,246,.1) 0%, transparent 70%);
  border-radius: 50%;
}
.pi-photo {
  position: relative;
  z-index: 1;
}
.pi-photo img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.pi-photo-badge {
  position: absolute;
  top: -10px;
  right: -10px;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #fff;
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(245,158,11,.4);
}
.pi-info {
  position: relative;
  z-index: 1;
}
.pi-info .pi-title-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(59,130,246,.15);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  border-radius: 50px;
  margin-bottom: 12px;
}
.pi-name {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 6px;
}
.pi-position {
  font-size: 16px;
  color: var(--primary-light);
  font-weight: 600;
  margin-bottom: 20px;
}
.pi-bio {
  font-size: 14px;
  color: #475569;
  line-height: 1.8;
  margin-bottom: 20px;
  text-align: justify;
}
.pi-socials {
  display: flex;
  gap: 12px;
}
.pi-socials a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  transition: var(--transition);
}
.pi-socials a:hover {
  background: var(--primary-light);
  color: #fff;
  border-color: transparent;
  transform: translateY(-2px);
}
.team-section-title {
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 32px;
}
.member-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}
.member-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--border);
}
.member-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.member-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  color: #fff;
}
.member-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.member-role {
  font-size: 12px;
  color: var(--primary-light);
  font-weight: 500;
  margin-bottom: 10px;
}
.member-research {
  font-size: 12px;
  color: var(--text-light);
  line-height: 1.6;
}
.grad-students {
  background: linear-gradient(135deg, #f0fdf4, #dcfce7);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
}
.grad-students h4 {
  font-size: 22px;
  font-weight: 700;
  color: #065f46;
  margin-bottom: 12px;
}
.grad-students p {
  font-size: 14px;
  color: #047857;
  margin-bottom: 24px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.grad-metrics {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}
.grad-metric {
  text-align: center;
}
.grad-metric-num {
  font-size: 36px;
  font-weight: 800;
  color: #059669;
}
.grad-metric-label {
  font-size: 13px;
  color: #047857;
  margin-top: 4px;
}

/* ========== Admission Section ========== */
.admission {
  background: var(--bg);
}
.admission-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.admission-left h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 20px;
}
.admission-left > p {
  font-size: 15px;
  color: #475569;
  margin-bottom: 28px;
  line-height: 1.8;
}
.direction-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}
.direction-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.direction-item:hover {
  border-color: var(--primary-light);
  transform: translateX(4px);
}
.direction-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(59,130,246,.15), rgba(14,165,233,.1));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}
.direction-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 16px;
}
.feature-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.feature-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-green), #059669);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  margin-top: 2px;
}
.feature-text h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.feature-text p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.6;
}
.requirements {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--border);
}
.requirements h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 20px;
}
.requirements ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}
.requirements li {
  font-size: 14px;
  color: #475569;
  padding-left: 24px;
  position: relative;
  line-height: 1.7;
}
.requirements li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary-light);
}
.contact-cta {
  text-align: center;
  padding: 24px;
  background: linear-gradient(135deg, rgba(59,130,246,.08), rgba(14,165,233,.06));
  border-radius: var(--radius);
}
.contact-cta p {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 8px;
}
.contact-cta a {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
}

/* ========== Contact Section ========== */
.contact {
  background: var(--bg-white);
}
.contact-wrapper {
  max-width: 960px;
  margin: 0 auto;
}
.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.contact-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--border);
}
.contact-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.contact-card-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  margin: 0 auto 20px;
}
.contact-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.contact-card p,
.contact-card a {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}
.contact-card a:hover {
  color: var(--primary);
}

/* ========== Footer ========== */
.footer {
  background: var(--primary-dark);
  color: #cbd5e1;
  padding: 64px 24px 24px;
}
.footer-content {
  max-width: 1280px;
  margin: 0 auto;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  font-weight: 800;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  opacity: .8;
  max-width: 400px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col a {
  font-size: 14px;
  opacity: .8;
  transition: var(--transition);
}
.footer-col a:hover {
  opacity: 1;
  color: var(--accent);
}
.footer-bottom {
  padding-top: 24px;
  text-align: center;
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.footer-links a {
  font-size: 13px;
  opacity: .7;
  transition: var(--transition);
}
.footer-links a:hover {
  opacity: 1;
  color: var(--accent);
}
.footer-copyright {
  font-size: 13px;
  opacity: .7;
  margin-bottom: 8px;
}
.footer-icp {
  font-size: 12px;
  opacity: .6;
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.footer-icp a:hover {
  opacity: 1;
  color: var(--accent);
}

/* ========== Back to Top ========== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(30,64,175,.4);
}

/* ========== Scroll Reveal Animation ========== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== Article & Page Styles ========== */
.page-header {
  background: linear-gradient(135deg, #0c1e3d 0%, #1e3a8a 40%, #0369a1 100%);
  color: #fff;
  padding: 140px 24px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/usr/uploads/hero-bg-2026.jpg');
  background-size: cover;
  background-position: center;
  opacity: .12;
  mix-blend-mode: overlay;
}
.page-header-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}
.page-header h1 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  margin-bottom: 12px;
}
.page-header .page-meta {
  font-size: 14px;
  opacity: .8;
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.page-header .page-meta a:hover {
  color: var(--accent);
}
.page-main {
  max-width: 900px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}
.post-content {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-md);
}
.post-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 32px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
}
.post-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary-dark);
  margin: 24px 0 12px;
}
.post-content p {
  font-size: 15px;
  color: #334155;
  line-height: 1.9;
  margin-bottom: 16px;
  text-align: justify;
}
.post-content img {
  border-radius: var(--radius);
  margin: 20px auto;
  max-width: 100%;
}
.post-content blockquote {
  margin: 20px 0;
  padding: 16px 24px;
  background: linear-gradient(135deg, rgba(59,130,246,.08), rgba(14,165,233,.05));
  border-left: 4px solid var(--primary-light);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: #475569;
}
.post-content code {
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
  color: var(--primary);
}
.post-content pre {
  background: var(--primary-dark);
  color: #e2e8f0;
  padding: 20px;
  border-radius: var(--radius);
  overflow-x: auto;
  margin: 16px 0;
}
.post-content pre code {
  background: none;
  color: inherit;
  padding: 0;
}
.post-content ul,
.post-content ol {
  margin: 16px 0;
  padding-left: 24px;
}
.post-content ul li {
  list-style: disc;
  margin-bottom: 8px;
  font-size: 15px;
  color: #334155;
  line-height: 1.8;
}
.post-content ol li {
  list-style: decimal;
  margin-bottom: 8px;
  font-size: 15px;
  color: #334155;
  line-height: 1.8;
}
.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}
.post-content th,
.post-content td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  text-align: left;
  font-size: 14px;
}
.post-content th {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-weight: 600;
}
.post-content tr:nth-child(even) {
  background: #f8fafc;
}
.post-tags {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.post-tags a {
  padding: 6px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 13px;
  color: var(--text-light);
  transition: var(--transition);
}
.post-tags a:hover {
  background: var(--primary);
  color: #fff;
  border-color: transparent;
}

/* ========== Archive / List Page ========== */
.archive-header {
  background: linear-gradient(135deg, #0c1e3d 0%, #1e3a8a 40%, #0369a1 100%);
  color: #fff;
  padding: 140px 24px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.archive-header h1 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  margin-bottom: 8px;
}
.archive-header p {
  font-size: 15px;
  opacity: .85;
}
.archive-main {
  max-width: 960px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}
.post-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.post-item {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: block;
}
.post-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.post-item h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  transition: var(--transition);
}
.post-item:hover h2 {
  color: var(--primary);
}
.post-item-excerpt {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 14px;
}
.post-item-meta {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--text-light);
  flex-wrap: wrap;
}
.post-item-meta .category {
  color: var(--primary);
  font-weight: 600;
}
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}
.pagination a,
.pagination span {
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-white);
  font-size: 14px;
  color: var(--text-light);
  transition: var(--transition);
}
.pagination a:hover {
  background: var(--primary);
  color: #fff;
  border-color: transparent;
}
.pagination .current {
  background: var(--primary);
  color: #fff;
  border-color: transparent;
}

/* ========== Widget / Sidebar ========== */
.widget {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--border);
  margin-bottom: 24px;
}
.widget-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
}
.widget ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.widget li a {
  font-size: 14px;
  color: #475569;
  transition: var(--transition);
  display: block;
}
.widget li a:hover {
  color: var(--primary);
  padding-left: 6px;
}

/* ========== 404 Page ========== */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  text-align: center;
  padding: 40px 24px;
}
.error-content h1 {
  font-size: 120px;
  font-weight: 800;
  background: linear-gradient(90deg, #38bdf8, #22d3ee, #34d399);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 20px;
}
.error-content h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}
.error-content p {
  font-size: 16px;
  opacity: .8;
  margin-bottom: 32px;
}

/* ========== Member Card Detail ========== */
.member-detail {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
}
.member-detail-photo img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.member-detail-info h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 6px;
}
.member-detail-role {
  font-size: 16px;
  color: var(--primary-light);
  font-weight: 600;
  margin-bottom: 20px;
}
.member-detail-meta {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 20px 0;
  padding: 20px;
  background: var(--bg);
  border-radius: var(--radius);
}
.member-detail-meta .meta-row {
  display: flex;
  gap: 12px;
  font-size: 14px;
}
.member-detail-meta .meta-label {
  font-weight: 600;
  color: var(--text);
  min-width: 80px;
}
.member-detail-meta .meta-value {
  color: var(--text-light);
}

/* ========== Responsive ========== */
@media (max-width: 968px) {
  .nav-links {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(255,255,255,.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px;
    gap: 4px;
    transform: translateY(-120%);
    transition: var(--transition);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
  .nav-links.open {
    transform: translateY(0);
  }
  .nav-links a {
    width: 100%;
    padding: 12px 16px;
  }
  .nav-toggle {
    display: flex;
  }
  .intro-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .research-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .member-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .team-pi {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 32px;
  }
  .pi-photo {
    max-width: 240px;
    margin: 0 auto;
  }
  .collab-wrapper {
    grid-template-columns: 1fr;
  }
  .admission-wrapper {
    grid-template-columns: 1fr;
  }
  .contact-cards {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .post-content {
    padding: 28px 20px;
  }
  .member-detail {
    grid-template-columns: 1fr;
  }
  .member-detail-photo {
    max-width: 260px;
    margin: 0 auto;
  }
  .patent-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 600px) {
  .section { padding: 60px 20px; }
  .research-grid { grid-template-columns: 1fr; }
  .member-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .hero-features { gap: 20px; }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .post-item { padding: 20px; }
  .page-main { padding: 40px 20px 60px; }
}

/* ===== v2 架构升级：slogan / 数据条带 / 新闻板块 / 图片logo ===== */
.hero-slogan { font-size: 26px; font-weight: 700; color: #f5c451; letter-spacing: 8px; margin: 10px 0 6px; text-shadow: 0 2px 12px rgba(0,0,0,.35); }
.hero-bg::before { opacity: .25; }
.stats-band { background: linear-gradient(135deg, #0c1e3d 0%, #16305e 100%); padding: 46px 24px; }
.stats-band .stats-grid { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stats-band .stat-item { padding: 4px 0; }
.stats-band .stat-number { font-size: 42px; font-weight: 800; color: #f5c451; line-height: 1.15; }
.stats-band .stat-label { font-size: 14px; color: rgba(255,255,255,.78); margin-top: 6px; letter-spacing: 1.5px; }
.news-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.news-item { display: flex; align-items: center; gap: 20px; background: #fff; border: 1px solid #e3e9f2; border-radius: 12px; padding: 16px 24px; text-decoration: none; transition: box-shadow .2s ease, transform .2s ease; }
.news-item:hover { box-shadow: 0 8px 24px rgba(27,38,49,.08); transform: translateY(-2px); }
.news-date { font-size: 15px; font-weight: 700; color: #b8860b; white-space: nowrap; letter-spacing: .5px; }
.news-title { font-size: 16px; color: #2c3e50; font-weight: 500; }
.nav-logo-img { height: 42px; width: auto; display: block; border-radius: 8px; }
@media (max-width: 768px) {
  .stats-band .stats-grid { grid-template-columns: repeat(2, 1fr); row-gap: 28px; }
  .hero-slogan { font-size: 20px; letter-spacing: 4px; }
  .news-item { flex-direction: row; align-items: flex-start; }
}
/* patch8: 独立页支撑 */
.page-topbar{height:100px;}
.page-note{max-width:860px;margin:0 auto 32px;padding:0 24px;text-align:center;color:#475569;line-height:1.9;}

/* ===== patch11: collab v2 网格布局 (2026-08-17) ===== */
.collab-wrapper.collab-v2 { grid-template-columns: 1fr; gap: 36px; }
.collab-v2 .collab-block > h3 { font-size: 22px; font-weight: 700; color: var(--primary-dark); margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.collab-v2 .collab-block > h3 svg { color: var(--accent); }
.collab-v2 .tech-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }
.collab-v2 .tech-card { flex-direction: column; gap: 14px; height: 100%; }
.collab-v2 .tech-card:hover { transform: translateY(-4px); }
.collab-v2 .tech-icon { width: 56px; height: 56px; font-size: 30px; border-radius: 14px; }
.collab-v2 .tech-info h4 { font-size: 17px; }
.collab-v2 .tech-info p { font-size: 13.5px; }
.collab-v2 .partner-grid { grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 14px; }
.collab-v2 .partner-item { aspect-ratio: auto; min-height: 72px; display: flex; align-items: center; justify-content: center; font-size: 12.5px; line-height: 1.5; }
.collab-v2 .partner-item a { color: inherit; text-decoration: none; }
.collab-v2 .collab-cases { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.collab-v2 .case-card { padding: 24px 26px; }
.collab-v2 .case-amount { font-size: 30px; }
@media (max-width: 768px) {
  .collab-v2 .tech-grid { grid-template-columns: 1fr; }
  .collab-v2 .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .collab-v2 .collab-cases { grid-template-columns: 1fr; }
}