/* ========== 各页面专属样式 ========== */

/* ===== 首页 Home ===== */
.hero {
  position: relative;
  padding: var(--space-9) 0 var(--space-9);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; } }

.hero h1 {
  font-size: clamp(36px, 6vw, 72px);
  line-height: 1.05;
  margin-bottom: var(--space-5);
}
.hero h1 .line { display: block; }
.hero p.lead,
.hero-sub {
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--color-text-soft);
  max-width: 540px;
  margin-bottom: var(--space-6);
}
.hero-cta,
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: var(--space-7); margin-top: var(--space-7); flex-wrap: wrap;
}
.hero-stat { }
.hero-stat .num,
.hero-stats b { font-family: var(--font-display); font-size: 32px; font-weight: 800; background: var(--grad-cosmic); -webkit-background-clip: text; background-clip: text; color: transparent; display: block; }
.hero-stat .lbl,
.hero-stats span { color: var(--color-text-soft); font-size: 13px; letter-spacing: 0.08em; }

/* Hero 视觉：旋转方块 + 粒子点阵 */
.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 560px;
  margin-inline: auto;
  width: 100%;
}
.orbit {
  position: absolute; inset: 0;
  border-radius: 50%;
  border: 1px dashed rgba(124,92,255,0.4);
  animation: spin 30s linear infinite;
}
.orbit.o2 { inset: 8%; border-color: rgba(255,78,205,0.3); animation-duration: 45s; animation-direction: reverse; }
.orbit.o3 { inset: 16%; border-color: rgba(74,217,255,0.3); animation-duration: 60s; }
@keyframes spin { to { transform: rotate(360deg); } }
.orbit::before {
  content: ""; position: absolute;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--color-primary); top: -7px; left: 50%;
  box-shadow: 0 0 20px var(--color-primary);
}
.orbit.o2::before { background: var(--color-accent); box-shadow: 0 0 20px var(--color-accent); }
.orbit.o3::before { background: var(--color-primary-2); box-shadow: 0 0 20px var(--color-primary-2); }

.core {
  position: absolute; inset: 26%;
  border-radius: 30%;
  background: var(--grad-cosmic);
  filter: blur(2px) saturate(1.2);
  animation: pulse 4s ease-in-out infinite;
  font-size: 0;
}
.core::after {
  content: "AIGC"; position: absolute; inset: 0;
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 900; font-size: 28px;
  color: #0a0820; letter-spacing: 0.15em;
  filter: drop-shadow(0 0 8px rgba(255,255,255,0.4));
}
@keyframes pulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.06); } }

/* Countdown */
.countdown {
  display: flex; gap: 14px; flex-wrap: wrap; justify-content: center;
}
.cd-item {
  min-width: 110px;
  padding: var(--space-5) var(--space-4);
  text-align: center;
  background: linear-gradient(180deg, rgba(124,92,255,0.18), rgba(255,78,205,0.06));
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
}
.cd-item .num,
.cd-item b {
  font-family: var(--font-display); font-size: 44px; font-weight: 800;
  background: var(--grad-cosmic); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.cd-item .lbl,
.cd-item span { font-size: 12px; letter-spacing: 0.16em; color: var(--color-text-soft); text-transform: uppercase; }

/* Highlights / Features */
.features {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5);
}
@media (max-width: 960px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .features { grid-template-columns: 1fr; } }
.feature .ic,
.feature .icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--grad-primary);
  display: grid; place-items: center;
  margin-bottom: var(--space-3);
  font-size: 22px; color: #0a0820;
  box-shadow: var(--shadow-glow);
}
.feature h3 { font-size: 18px; margin-bottom: 6px; }
.feature p { color: var(--color-text-soft); font-size: 14px; }

/* Tracks 赛道 */
.tracks {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4);
}
@media (max-width: 960px) { .tracks { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .tracks { grid-template-columns: 1fr; } }
.track {
  padding: var(--space-6) var(--space-5);
  text-align: center;
  background: linear-gradient(180deg, rgba(255,78,205,0.08), rgba(124,92,255,0.04));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: var(--t-base);
}
.track:hover { transform: translateY(-6px); border-color: rgba(255,78,205,0.5); box-shadow: var(--shadow-glow-pink); }
.track .emoji,
.track .icon { font-size: 40px; }
.track h4,
.track h3 { margin-top: var(--space-3); font-size: 18px; }
.track p { color: var(--color-text-mute); font-size: 13px; margin-top: 6px; }

/* Partners logo wall */
.partners {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-4);
}
@media (max-width: 960px) { .partners { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 520px) { .partners { grid-template-columns: repeat(2, 1fr); } }
.partner {
  height: 80px;
  display: grid; place-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: 700; letter-spacing: 0.1em;
  color: var(--color-text-soft);
  transition: var(--t-base);
}
.partner:hover { color: #fff; border-color: rgba(124,92,255,0.5); background: rgba(124,92,255,0.08); }

/* ===== News 列表 ===== */
.news-list { display: grid; grid-template-columns: 1fr; gap: var(--space-4); }
.news-item {
  display: grid; grid-template-columns: 100px 1fr auto; gap: var(--space-5);
  align-items: center;
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: var(--t-base);
  cursor: pointer;
}
.news-item:hover { background: rgba(124,92,255,0.06); border-color: rgba(124,92,255,0.4); transform: translateX(4px); }
.news-date {
  text-align: center; padding: 8px 0;
  border-right: 1px solid var(--color-border);
}
.news-date .d { font-family: var(--font-display); font-size: 28px; font-weight: 800; color: var(--color-primary-2); }
.news-date .ym { font-size: 12px; color: var(--color-text-mute); }
.news-content h3 { font-size: 18px; margin-bottom: 6px; }
.news-content p { color: var(--color-text-soft); font-size: 14px; }
.news-arrow { font-size: 24px; color: var(--color-text-mute); transition: var(--t-base); }
.news-item:hover .news-arrow { color: var(--color-primary-2); transform: translateX(4px); }
@media (max-width: 600px) {
  .news-item { grid-template-columns: 80px 1fr; }
  .news-arrow { display: none; }
  .news-date { border-right: 1px solid var(--color-border); }
}

.news-detail { max-width: 860px; margin-inline: auto; }
.news-detail .meta { display: flex; gap: 14px; color: var(--color-text-mute); font-size: 13px; margin-bottom: var(--space-5); }
.news-detail .body { color: var(--color-text-soft); font-size: 16px; line-height: 1.9; }
.news-detail .body p { margin-bottom: var(--space-4); }
.news-detail .body h3 { color: var(--color-text); margin: var(--space-5) 0 var(--space-3); font-size: 20px; }

/* ===== Apply 报名 ===== */
.apply-tabs {
  display: flex; gap: 8px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 6px;
  border-radius: var(--radius-pill);
  width: fit-content;
  margin: 0 auto var(--space-6);
}
.apply-tabs button {
  padding: 10px 28px;
  border-radius: var(--radius-pill);
  color: var(--color-text-soft); font-weight: 600; font-size: 14px;
  transition: var(--t-base);
}
.apply-tabs button.active { background: var(--grad-primary); color: #0a0820; box-shadow: var(--shadow-glow); }

.apply-form {
  display: none;
  max-width: 760px; margin: 0 auto;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
}
.apply-form.active { display: block; }
.apply-form h3 { margin-bottom: var(--space-3); }
.apply-form .desc { color: var(--color-text-soft); margin-bottom: var(--space-6); font-size: 14px; }
.checkbox-row {
  display: flex; align-items: flex-start; gap: 10px; margin: var(--space-4) 0;
  font-size: 13px; color: var(--color-text-soft);
}
.checkbox-row input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--color-primary); }
.checkbox-row a { color: var(--color-primary-2); text-decoration: underline; }
.form-actions { display: flex; gap: 12px; justify-content: flex-end; margin-top: var(--space-5); }

/* ===== Enterprise / Personal cards ===== */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
@media (max-width: 960px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.ent-card { display: flex; flex-direction: column; gap: var(--space-3); }
.ent-logo {
  height: 110px; border-radius: var(--radius-md);
  display: grid; place-items: center;
  font-family: var(--font-display); font-size: 22px; font-weight: 800;
  letter-spacing: 0.06em;
  background: linear-gradient(135deg, rgba(124,92,255,0.18), rgba(74,217,255,0.10));
  border: 1px solid var(--color-border);
  color: #fff;
}
.ent-card h3 { font-size: 18px; }
.ent-card p { color: var(--color-text-soft); font-size: 14px; min-height: 42px; }
.ent-meta { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }

.person-card { text-align: center; }
.person-avatar {
  width: 96px; height: 96px; border-radius: 50%;
  background: var(--grad-cosmic);
  margin: 0 auto var(--space-3);
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 800; font-size: 28px;
  color: #0a0820;
  box-shadow: var(--shadow-glow);
}
.person-card h3 { font-size: 16px; }
.person-card .role,
.person-card .muted { color: var(--color-text-mute); font-size: 13px; margin-bottom: 8px; }
.person-card .meta,
.person-card .tags { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; }
.person-stats { display: flex; justify-content: center; gap: var(--space-5); margin-top: var(--space-3); padding-top: var(--space-3); border-top: 1px solid var(--color-border); }
.person-stats .item .n,
.person-stats b { font-family: var(--font-display); font-size: 18px; color: var(--color-primary-2); display: block; }
.person-stats .item .l,
.person-stats span { font-size: 11px; color: var(--color-text-mute); letter-spacing: 0.1em; }

/* ===== Works 作品 ===== */
.works-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5);
}
@media (max-width: 960px) { .works-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .works-grid { grid-template-columns: 1fr; } }
.work-card {
  border-radius: var(--radius-lg); overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: var(--t-base);
}
.work-card:hover { transform: translateY(-6px); border-color: rgba(255,78,205,0.5); box-shadow: var(--shadow-md); }
.work-cover {
  aspect-ratio: 4 / 3;
  position: relative;
  overflow: hidden;
}
.work-cover .ph {
  position: absolute; inset: 0;
  display: grid;
  place-items: center;
  padding: var(--space-5);
  text-align: center;
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.35;
  color: #fff;
  text-shadow: 0 2px 16px rgba(0,0,0,0.45);
  background-size: cover; background-position: center;
  transition: transform var(--t-slow);
}
.work-card:hover .work-cover .ph { transform: scale(1.06); }
.work-cover .badge {
  position: absolute; top: 12px; left: 12px;
  display: inline-flex; align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: rgba(7,6,15,0.72);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.22);
  font-size: 12px;
  backdrop-filter: blur(8px);
}
.work-info { padding: var(--space-4); }
.work-info h3 { font-size: 16px; margin-bottom: 6px; }
.work-info .author { color: var(--color-text-mute); font-size: 13px; }
.work-info .stats { display: flex; gap: 14px; margin-top: 10px; font-size: 13px; color: var(--color-text-soft); }
.work-info .stats .like { display: inline-flex; align-items: center; gap: 4px; cursor: pointer; transition: color var(--t-fast); }
.work-info .stats .like:hover,
.work-info .stats .like.on,
.work-info .stats .like.liked { color: var(--color-accent); }

/* Work detail modal */
.work-detail-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: var(--space-6); }
@media (max-width: 760px) { .work-detail-grid { grid-template-columns: 1fr; } }
.work-detail-cover {
  aspect-ratio: 4/3;
  background-size: cover; background-position: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.work-detail-info h2 { font-size: 24px; margin-bottom: 10px; }
.work-detail-info .desc { color: var(--color-text-soft); margin-top: var(--space-3); font-size: 14px; line-height: 1.8; }
.work-detail-info .kv { display: grid; grid-template-columns: 80px 1fr; gap: 8px 16px; margin-top: var(--space-4); font-size: 13px; }
.work-detail-info .kv dt,
.work-detail-info .kv b { color: var(--color-text-mute); }
.work-detail-info .kv dd,
.work-detail-info .kv span { color: var(--color-text); }

/* ===== Jury 评审 ===== */
.jury-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
@media (max-width: 960px) { .jury-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .jury-grid { grid-template-columns: 1fr; } }
.jury-card { text-align: center; }
.jury-avatar {
  width: 120px; height: 120px; border-radius: 50%;
  margin: 0 auto var(--space-3);
  background: var(--grad-cosmic);
  display: grid; place-items: center;
  font-family: var(--font-display); font-size: 32px; font-weight: 900;
  color: #0a0820;
  box-shadow: var(--shadow-glow);
  position: relative;
}
.jury-avatar::after {
  content: ""; position: absolute; inset: -4px;
  border-radius: 50%;
  border: 1px dashed rgba(124,92,255,0.5);
  animation: spin 20s linear infinite;
}
.jury-card h3 { font-size: 18px; }
.jury-card .title,
.jury-card .muted:first-of-type { color: var(--color-primary-2); font-size: 13px; margin-bottom: 6px; }
.jury-card .org,
.jury-card .muted { color: var(--color-text-mute); font-size: 13px; }
.jury-card .bio,
.jury-card p {
  color: var(--color-text-soft); font-size: 13px;
  margin-top: var(--space-3); padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  max-height: 0; overflow: hidden; opacity: 0;
  transition: var(--t-base);
}
.jury-card:hover .bio,
.jury-card:hover p { max-height: 200px; opacity: 1; padding-top: var(--space-3); }

/* 评审标准 */
.criteria { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
@media (max-width: 960px) { .criteria { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .criteria { grid-template-columns: 1fr; } }
.criterion .pct {
  font-family: var(--font-display); font-size: 40px; font-weight: 800;
  background: var(--grad-cosmic); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.criterion h4 { margin-top: 6px; font-size: 17px; }
.criterion p { color: var(--color-text-soft); font-size: 13px; margin-top: 6px; }

/* ===== About 关于 ===== */
.about-intro { max-width: 860px; margin: 0 auto; text-align: center; color: var(--color-text-soft); font-size: 16px; line-height: 1.9; }
.timeline { max-width: 760px; margin: 0 auto; position: relative; padding-left: 30px; }
.timeline::before {
  content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px;
  width: 2px; background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
}
.tl-item { position: relative; margin-bottom: var(--space-6); }
.tl-item::before {
  content: ""; position: absolute; left: -30px; top: 8px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--grad-primary);
  box-shadow: 0 0 0 4px rgba(124,92,255,0.25);
}
.tl-date { font-family: var(--font-display); color: var(--color-primary-2); font-size: 14px; letter-spacing: 0.08em; }
.tl-item h4 { font-size: 18px; margin-top: 4px; }
.tl-item p { color: var(--color-text-soft); margin-top: 4px; font-size: 14px; }

/* 奖项 */
.awards { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
@media (max-width: 760px) { .awards { grid-template-columns: 1fr; } }
.award { text-align: center; padding: var(--space-6) var(--space-5); }
.award .ic,
.award .medal {
  width: 64px; height: 64px; border-radius: 50%;
  margin: 0 auto var(--space-3);
  display: grid; place-items: center;
  font-size: 32px;
  font-family: var(--font-display);
  font-weight: 900;
  color: #0a0820;
}
.award.gold .ic,
.award.gold .medal { background: linear-gradient(135deg, #ffd47a, #ff9b3d); box-shadow: 0 0 24px rgba(255,181,71,0.45); }
.award.silver .ic,
.award.silver .medal { background: linear-gradient(135deg, #e7e9f0, #a3a8bd); box-shadow: 0 0 24px rgba(200,200,220,0.35); }
.award.bronze .ic,
.award.bronze .medal { background: linear-gradient(135deg, #ffb47a, #b56a3d); box-shadow: 0 0 24px rgba(200,120,80,0.35); }
.award h3 { font-size: 22px; }
.award .prize { font-family: var(--font-display); font-size: 28px; margin: 8px 0; background: var(--grad-cosmic); -webkit-background-clip: text; background-clip: text; color: transparent; }
.award p { color: var(--color-text-soft); font-size: 13px; }

/* Empty state */
.empty {
  text-align: center; padding: var(--space-9) var(--space-5);
  color: var(--color-text-mute);
}
.empty .ic { font-size: 56px; margin-bottom: var(--space-3); opacity: .6; }