/* ============================================================
   FoldCity Portal — 周增现个人作品门户
   深色星空风格 · 全屏分屏式滚动（每项目一屏 + 简历置末）
   ============================================================ */

:root {
  --bg-deep: #050816;
  --bg-mid: #0a0e2a;
  --bg-soft: #131838;
  --accent-cyan: #4fd1c5;
  --accent-purple: #b794f4;
  --accent-gold: #f6c177;
  --text-primary: #e8ecf6;
  --text-secondary: #a0aec0;
  --text-muted: #6b7693;
  --card-bg: rgba(255, 255, 255, 0.035);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-hover-border: rgba(79, 209, 197, 0.4);
}

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

html {
  scroll-behavior: smooth;
  scroll-snap-type: y proximity;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", "Helvetica Neue", sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  overflow-x: hidden;
  min-height: 100vh;
  line-height: 1.6;
}

/* 星空 Canvas 背景 */
#starfield {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* 渐变光晕层 */
.glow-layer {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(
      ellipse 80% 50% at 50% -10%,
      rgba(183, 148, 244, 0.15),
      transparent
    ),
    radial-gradient(
      ellipse 60% 40% at 80% 110%,
      rgba(79, 209, 197, 0.08),
      transparent
    );
}

/* 主容器 */
.container {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============ 侧边导航点 ============ */
.dots {
  position: fixed;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 16px;
  z-index: 20;
}
.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.25);
  transition: all 0.3s;
  position: relative;
}
.dot::after {
  content: attr(data-label);
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  font-size: 0.72rem;
  color: var(--text-secondary);
  background: rgba(10, 14, 42, 0.85);
  padding: 3px 9px;
  border-radius: 6px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
  border: 1px solid var(--card-border);
}
.dot:hover,
.dot.active {
  background: var(--accent-cyan);
  transform: scale(1.3);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(79, 209, 197, 0.6);
}
.dot:hover::after,
.dot.active::after {
  opacity: 1;
}

/* ============ 全屏分屏 ============ */
.screen {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 2fr 1fr;
  align-items: center;
  gap: 48px;
  padding: 90px 0 70px;
  scroll-snap-align: start;
  position: relative;
}
.screen.reverse {
  grid-template-columns: 1fr 2fr;
}
.screen.reverse .screen-info {
  order: 1;
}
.screen.reverse .screen-preview {
  order: 2;
}

/* —— 动态预览区 —— */
.screen-preview {
  position: relative;
  height: min(74vh, 660px);
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--card-border);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  display: block;
  text-decoration: none;
}
.screen-preview.clickable {
  cursor: pointer;
}
.screen-preview.clickable:hover {
  border-color: var(--card-hover-border);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(79, 209, 197, 0.25);
}
.preview-enter-hint {
  position: absolute;
  left: 50%;
  bottom: 20px;
  transform: translate(-50%, 8px);
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(5, 5, 32, 0.65);
  border: 1px solid rgba(79, 209, 197, 0.45);
  color: var(--accent-cyan);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  backdrop-filter: blur(8px);
  opacity: 0;
  transition: all 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
  pointer-events: none;
  white-space: nowrap;
}
.screen-preview.clickable:hover .preview-enter-hint {
  opacity: 1;
  transform: translate(-50%, 0);
}
.preview-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.preview-emoji {
  position: absolute;
  right: 22px;
  bottom: 18px;
  font-size: 2.2rem;
  opacity: 0.5;
  filter: drop-shadow(0 4px 14px rgba(0, 0, 0, 0.5));
  pointer-events: none;
}

.cover-nebula {
  background: #050520;
}
.cover-reasoning {
  background: linear-gradient(135deg, #0d1f2d, #1a3a4a);
}
.cover-atlas {
  background: linear-gradient(135deg, #1a2340, #2d3458);
  background-image: linear-gradient(
      rgba(246, 193, 119, 0.1) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(246, 193, 119, 0.1) 1px, transparent 1px),
    linear-gradient(135deg, #1a2340, #2d3458);
  background-size: 26px 26px, 26px 26px, 100% 100%;
}

/* —— 项目信息区 —— */
.screen-info {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.screen-index {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--accent-cyan);
  opacity: 0.85;
}
.screen-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.screen-title {
  font-size: clamp(1.9rem, 4.2vw, 2.8rem);
  font-weight: 800;
  line-height: 1.15;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
}
.screen-en {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: 1.5px;
}
.screen-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.85;
  max-width: 460px;
}
.screen-footer {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 8px;
  flex-wrap: wrap;
}

/* —— CTA 按钮 —— */
.cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  background: linear-gradient(
    120deg,
    rgba(79, 209, 197, 0.16),
    rgba(183, 148, 244, 0.16)
  );
  border: 1px solid rgba(79, 209, 197, 0.4);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
  backdrop-filter: blur(8px);
}
.cta:hover {
  transform: translateY(-2px);
  border-color: var(--accent-cyan);
  box-shadow: 0 10px 30px rgba(79, 209, 197, 0.25);
  gap: 14px;
}
.cta .arrow {
  transition: transform 0.3s;
}
.cta.muted {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--text-muted);
  cursor: not-allowed;
}
.cta.muted:hover {
  transform: none;
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: none;
  gap: 8px;
}

/* —— 标签 —— */
.tag {
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  background: rgba(79, 209, 197, 0.08);
  border: 1px solid rgba(79, 209, 197, 0.25);
  color: var(--accent-cyan);
  backdrop-filter: blur(6px);
}
.tag.purple {
  background: rgba(183, 148, 244, 0.08);
  border-color: rgba(183, 148, 244, 0.25);
  color: var(--accent-purple);
}
.tag.gold {
  background: rgba(246, 193, 119, 0.08);
  border-color: rgba(246, 193, 119, 0.25);
  color: var(--accent-gold);
}
.tag.blue {
  background: rgba(91, 157, 255, 0.08);
  border-color: rgba(91, 157, 255, 0.25);
  color: #5b9dff;
}

/* —— 状态徽章 —— */
.status-badge {
  font-size: 0.72rem;
  padding: 4px 11px;
  border-radius: 999px;
  font-weight: 500;
  letter-spacing: 0.5px;
}
.status-live {
  background: rgba(79, 209, 197, 0.12);
  color: var(--accent-cyan);
  border: 1px solid rgba(79, 209, 197, 0.3);
}
.status-soon {
  background: rgba(246, 193, 119, 0.1);
  color: var(--accent-gold);
  border: 1px solid rgba(246, 193, 119, 0.3);
}
.status-pending {
  background: rgba(160, 174, 192, 0.08);
  color: var(--text-muted);
  border: 1px solid rgba(160, 174, 192, 0.2);
}

/* —— 滚动提示 —— */
.scroll-cue {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 2px solid rgba(255, 255, 255, 0.22);
  border-radius: 14px;
  display: flex;
  justify-content: center;
  padding-top: 7px;
  opacity: 0.6;
  transition: opacity 0.3s;
}
.scroll-cue span {
  width: 4px;
  height: 8px;
  background: var(--accent-cyan);
  border-radius: 2px;
  animation: cue 1.6s infinite;
}
@keyframes cue {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(12px); opacity: 0; }
}
.screen:hover .scroll-cue { opacity: 0.9; }

/* ============ Agent 商业落地展示屏 ============ */
.agent-screen {
  grid-template-columns: 1fr;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 36px;
  padding: 80px 0 60px;
}
/* 卡片较多时顶部对齐，避免上方留白过大 */
.agent-screen.agent-screen--long {
  justify-content: flex-start;
}
.agent-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.agent-header .screen-index {
  margin-bottom: 4px;
}
.agent-header .screen-desc {
  margin: 0 auto;
}
.agent-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
}

/* agent 卡片 */
.agent-card {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--card-border);
  background: rgba(19, 24, 56, 0.6);
  backdrop-filter: blur(10px);
  transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
  cursor: default;
  display: flex;
  flex-direction: column;
}
/* 顶部主题色条 —— 每个项目独有色 */
.agent-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg,
    hsla(var(--card-hue, 200), 85%, 68%, 0.95),
    hsla(var(--card-hue, 200), 85%, 58%, 0.35));
  z-index: 3;
}
.agent-card:hover {
  border-color: hsla(var(--card-hue, 200), 80%, 65%, 0.55);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4),
    0 0 0 1px hsla(var(--card-hue, 200), 80%, 65%, 0.25);
}
.agent-card-viz {
  width: 100%;
  height: 150px;
  position: relative;
  overflow: hidden;
}
.agent-card-viz canvas {
  width: 100%;
  height: 100%;
  display: block;
}
.agent-card-body {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.agent-card-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}
.agent-card-tagline {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.5;
}
.agent-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.agent-card-client {
  font-size: 0.76rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
}
.agent-card-client::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: hsla(var(--card-hue, 200), 85%, 65%, 0.85);
  box-shadow: 0 0 8px hsla(var(--card-hue, 200), 85%, 65%, 0.5);
  flex-shrink: 0;
}
.agent-status {
  font-size: 0.7rem;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.agent-status.delivered {
  background: hsla(var(--card-hue, 200), 75%, 55%, 0.15);
  color: hsl(var(--card-hue, 200), 80%, 72%);
  border: 1px solid hsla(var(--card-hue, 200), 75%, 60%, 0.35);
}
.agent-status.in-progress {
  background: hsla(var(--card-hue, 200), 82%, 60%, 0.15);
  color: hsl(var(--card-hue, 200), 88%, 74%);
  border: 1px solid hsla(var(--card-hue, 200), 82%, 65%, 0.35);
  animation: statusPulse 2s ease-in-out infinite;
}
@keyframes statusPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(246, 193, 119, 0.3); }
  50% { box-shadow: 0 0 12px 2px rgba(246, 193, 119, 0.15); }
}

@media (max-width: 900px) {
  .agent-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 560px) {
  .agent-grid {
    grid-template-columns: 1fr;
  }
}

/* ============ 简历屏（末尾）============ */
.resume-screen {
  grid-template-columns: 1fr;
  text-align: center;
  justify-items: center;
  padding: 100px 0 60px;
  min-height: 100vh;
}
.resume-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 640px;
}
.avatar {
  width: 124px;
  height: 124px;
  border-radius: 50%;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  font-size: 52px;
  font-weight: 700;
  color: var(--bg-deep);
  box-shadow: 0 0 60px rgba(79, 209, 197, 0.35),
    0 0 120px rgba(183, 148, 244, 0.25);
  animation: avatarPulse 4s ease-in-out infinite;
}
@keyframes avatarPulse {
  0%, 100% {
    box-shadow: 0 0 60px rgba(79, 209, 197, 0.35),
      0 0 120px rgba(183, 148, 244, 0.25);
  }
  50% {
    box-shadow: 0 0 80px rgba(79, 209, 197, 0.5),
      0 0 160px rgba(183, 148, 244, 0.35);
  }
}
.hero-name {
  font-size: clamp(2.2rem, 5.5vw, 3.4rem);
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 16px;
  background: linear-gradient(120deg, #fff, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 18px;
}
.hero-tagline {
  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-weight: 300;
  letter-spacing: 1px;
}
.hero-bio {
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.95;
}

/* —— 联系 —— */
.contact {
  margin-top: 44px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  width: 100%;
}
.contact-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.contact-sub {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 18px;
}
.contact-qr {
  width: 210px;
  height: 210px;
  border-radius: 16px;
  margin: 0 auto 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}
.contact-qr img {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  object-fit: cover;
  filter: brightness(1.1);
}
.contact-hint {
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* ============ 页脚 ============ */
.footer {
  text-align: center;
  padding: 36px 0 46px;
  color: var(--text-muted);
  font-size: 0.82rem;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  margin-top: 10px;
  scroll-snap-align: start;
}
.footer .heart {
  color: var(--accent-purple);
}

/* ============ 响应式 ============ */
@media (max-width: 860px) {
  .screen {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 80px 0 60px;
    min-height: auto;
  }
  .screen.reverse .screen-preview,
  .screen.reverse .screen-info {
    order: initial;
  }
  .screen-preview {
    height: 42vh;
    min-height: 260px;
  }
  .screen-info {
    text-align: left;
  }
  .scroll-cue { display: none; }
  html { scroll-snap-type: none; }
  .dots { display: none; }
}
@media (max-width: 640px) {
  .container { padding: 0 18px; }
  .avatar { width: 104px; height: 104px; font-size: 44px; }
  .screen-desc { font-size: 0.92rem; }
}