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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: #fff;
  color: #111;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { text-decoration: none; color: inherit; }

/* ===== NAV ===== */
.nav {
  padding: 20px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.logo-icon {
  width: 24px; height: 24px;
  color: #111;
}
.nav-right { display: flex; align-items: center; gap: 16px; }
.nav-star {
  font-size: 12px;
  color: #888;
  letter-spacing: 0.01em;
}

/* ===== DIVIDERS ===== */
.divider {
  height: 1px;
  background: #e8e8e8;
}
.divider-h {
  height: 1px;
  background: #e8e8e8;
  margin: 28px 0;
}
.v-divider {
  width: 1px;
  background: #e8e8e8;
  align-self: stretch;
}

/* ===== MAIN LAYOUT ===== */
.main {
  display: flex;
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  padding: 56px 40px;
  gap: 56px;
}
.left {
  flex: 0 0 400px;
  max-width: 440px;
}
.right {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

/* ===== TYPOGRAPHY ===== */
h1 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 38px;
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
  color: #111;
}
h1 em {
  font-style: italic;
}

.desc {
  font-size: 14.5px;
  line-height: 1.7;
  color: #555;
  margin-bottom: 32px;
}

/* ===== FORM ===== */
.waitlist-form { margin-bottom: 10px; }
.input-row {
  display: flex;
  gap: 0;
  border: 1.5px solid #111;
  border-radius: 6px;
  overflow: hidden;
}
.input-row input {
  flex: 1;
  padding: 12px 14px;
  border: none;
  font-size: 14px;
  font-family: inherit;
  color: #111;
  background: #fff;
  outline: none;
}
.input-row input::placeholder { color: #aaa; }

.submit-btn {
  padding: 12px 20px;
  background: #111;
  color: #fff;
  border: none;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  letter-spacing: 0.01em;
  transition: background .15s;
}
.submit-btn:hover { background: #333; }

.hint {
  font-size: 12px;
  color: #aaa;
  margin-top: 10px;
}

/* ===== INTEGRATIONS ===== */
.integrations-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #999;
  margin-bottom: 10px;
}

.marquee-wrapper {
  position: relative;
  overflow: hidden;
}
.marquee-fade-left,
.marquee-fade-right {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 40px;
  z-index: 2;
  pointer-events: none;
}
.marquee-fade-left {
  left: 0;
  background: linear-gradient(to right, #fff, transparent);
}
.marquee-fade-right {
  right: 0;
  background: linear-gradient(to left, #fff, transparent);
}
.marquee-track {
  overflow: hidden;
  padding: 3px 0;
}
.marquee-scroll {
  display: flex;
  gap: 6px;
  width: max-content;
}
.marquee-scroll.scroll-left {
  animation: marquee-left 28s linear infinite;
}
.marquee-scroll.scroll-right {
  animation: marquee-right 28s linear infinite;
}
.marquee-scroll.slow {
  animation-duration: 34s;
}
@keyframes marquee-left {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
@keyframes marquee-right {
  0%   { transform: translateX(-50%); }
  100% { transform: translateX(0); }
}

.int-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 500;
  color: #333;
  padding: 5px 10px;
  border: 1px solid #e8e8e8;
  border-radius: 5px;
  background: #fafafa;
  white-space: nowrap;
  flex-shrink: 0;
}
.int-chip img {
  vertical-align: middle;
}
.int-chip-more {
  font-size: 11px;
  font-weight: 600;
  color: #999;
  padding: 5px 8px;
}

/* ===== OPENCLAW ===== */
.openclaw-block { }
.openclaw-label {
  font-size: 13px;
  font-weight: 700;
  color: #111;
  display: block;
  margin-bottom: 6px;
}
.openclaw-block p {
  font-size: 13.5px;
  color: #666;
  line-height: 1.65;
}
.openclaw-block strong { color: #111; }

/* ===== GLOW EFFECT ===== */
.right {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  padding: 16px !important;
}

.glow-container {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  border-radius: 20px;
}

.glow-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  will-change: transform;
  transition: transform 0.3s ease-out;
}

.blob-1 {
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, #a78bfa 0%, #c4b5fd 60%, transparent 100%);
  top: -30px;
  left: -40px;
  animation: float-1 12s ease-in-out infinite;
}

.blob-2 {
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, #93c5fd 0%, #bfdbfe 60%, transparent 100%);
  top: 30%;
  right: -50px;
  animation: float-2 14s ease-in-out infinite;
}

.blob-3 {
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, #fda4af 0%, #fecdd3 60%, transparent 100%);
  bottom: 15%;
  left: 10%;
  animation: float-3 10s ease-in-out infinite;
}

.blob-4 {
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, #fde68a 0%, #fef3c7 60%, transparent 100%);
  bottom: -20px;
  right: 20%;
  animation: float-4 16s ease-in-out infinite;
}

@keyframes float-1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25%      { transform: translate(30px, 40px) scale(1.1); }
  50%      { transform: translate(-20px, 60px) scale(0.95); }
  75%      { transform: translate(40px, -10px) scale(1.05); }
}

@keyframes float-2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25%      { transform: translate(-40px, 20px) scale(1.08); }
  50%      { transform: translate(20px, -30px) scale(0.92); }
  75%      { transform: translate(-10px, 50px) scale(1.1); }
}

@keyframes float-3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(50px, -30px) scale(1.12); }
  66%      { transform: translate(-30px, 20px) scale(0.9); }
}

@keyframes float-4 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  20%      { transform: translate(-20px, -40px) scale(1.05); }
  50%      { transform: translate(40px, -20px) scale(1.15); }
  80%      { transform: translate(10px, 30px) scale(0.95); }
}

/* ===== CARDS ===== */
.card {
  position: relative;
  z-index: 1;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(232, 232, 232, 0.7);
  border-radius: 12px;
  padding: 16px;
  transition: box-shadow .2s, background .2s;
}
.card:hover {
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
  background: rgba(255, 255, 255, 0.92);
}

.card-head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.avatar {
  width: 28px; height: 28px;
  border-radius: 7px;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}
.card-text {
  font-size: 13px;
  line-height: 1.55;
  color: #444;
}
.card-text strong {
  font-weight: 600;
  color: #111;
}

.tag {
  font-size: 10.5px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  background: #f3f4f6;
  color: #374151;
  display: inline-block;
  vertical-align: 1px;
  font-family: 'SF Mono', 'Menlo', 'Consolas', monospace;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid #f0f0f0;
}

.meta {
  font-size: 11.5px;
  color: #888;
  display: flex;
  align-items: center;
  gap: 4px;
}
.meta code {
  font-family: 'SF Mono', 'Menlo', 'Consolas', monospace;
  font-size: 10.5px;
  background: #f5f5f5;
  color: #555;
  padding: 1px 5px;
  border-radius: 3px;
}

.btn-pair {
  display: flex;
  gap: 6px;
}

.card-btn {
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  padding: 5px 14px;
  border-radius: 6px;
  border: 1.5px solid #111;
  background: #111;
  color: #fff;
  cursor: pointer;
  white-space: nowrap;
  transition: all .12s;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  letter-spacing: 0.01em;
}
.card-btn:hover { background: #333; border-color: #333; }
.card-btn.ghost {
  background: #fff;
  color: #666;
  border-color: #ddd;
}
.card-btn.ghost:hover { background: #fafafa; border-color: #bbb; }

/* Command card */
.ctx-row { display: flex; align-items: center; gap: 6px; }
.ctx {
  font-size: 11.5px;
  color: #aaa;
}

/* ===== FOOTER ===== */
.footer {
  padding: 20px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: #aaa;
}
.footer-links {
  display: flex;
  gap: 20px;
  margin-right: 40px;
}
.footer-links a {
  color: #888;
  font-size: 12px;
  transition: color .15s;
  display: flex;
  align-items: center;
}
.footer-links a:hover { color: #111; }

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: #111;
  color: #fff;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 8px 32px rgba(0,0,0,.2);
  opacity: 0;
  pointer-events: none;
  transition: all .25s ease;
  z-index: 999;
  white-space: nowrap;
}
.toast svg { color: #fff; stroke: #fff; }
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ===== SUCCESS MODAL ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.modal-overlay.show {
  opacity: 1;
  visibility: visible;
}

#confetti-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.modal-card {
  position: relative;
  z-index: 2;
  background: #fff;
  border-radius: 20px;
  padding: 48px 40px 40px;
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  transform: scale(0.9) translateY(20px);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow: hidden;
}

.modal-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('icons/card.png') center / cover no-repeat;
  opacity: 0.12;
  pointer-events: none;
  z-index: -1;
}

.modal-overlay.show .modal-card {
  transform: scale(1) translateY(0);
}

.modal-icon {
  width: 90px;
  height: 90px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: icon-pop 0.5s ease 0.2s both;
  box-shadow: 0 8px 24px rgba(251, 191, 36, 0.3);
}

.modal-emoji {
  font-size: 48px;
  line-height: 1;
}

@keyframes icon-pop {
  0% { transform: scale(0); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

.modal-icon svg {
  animation: check-draw 0.6s ease 0.4s both;
}

@keyframes check-draw {
  0% { stroke-dasharray: 50; stroke-dashoffset: 50; }
  100% { stroke-dasharray: 50; stroke-dashoffset: 0; }
}

.modal-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 28px;
  font-weight: 500;
  color: #111;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.modal-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #666;
  margin-bottom: 20px;
}

.modal-email {
  font-size: 13px;
  font-weight: 500;
  color: #111;
  background: #f5f5f5;
  padding: 10px 16px;
  border-radius: 8px;
  margin-bottom: 28px;
  display: inline-block;
}

.modal-btn {
  width: 100%;
  padding: 14px 24px;
  background: #111;
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, transform 0.15s;
}

.modal-btn:hover {
  background: #333;
}

.modal-btn:active {
  transform: scale(0.98);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 700px) {
  .main {
    flex-direction: column;
    padding: 36px 24px;
    gap: 36px;
  }
  .left { max-width: 100%; }
  .v-divider { display: none; }
  .divider-h { margin: 24px 0; }
  h1 { font-size: 30px; }
  .nav { padding: 16px 24px; }
  .footer { padding: 16px 24px; flex-direction: column; gap: 8px; text-align: center; }
  .input-row { flex-direction: column; }
  .submit-btn { border-top: 1px solid #333; }
  .glow-blob { filter: blur(60px); opacity: 0.25; }
  .blob-1, .blob-2, .blob-3, .blob-4 { width: 140px; height: 140px; }
}

/* ===== 3D COMPUTER MODEL ===== */
:root {
  --box-width: 380px;
  --box-height: 300px;
  --box-depth: 200px;
  --beige-main: #e8e6e1;
  --beige-darker: #d5d2cb;
  --beige-light: #f1f0ed;
  --bezel-dark: #2a2a2a;
  --crt-bg: #f8f8f5;
  --terminal-text: #222;
}

/* 关闭按钮 - 卡片外右上角 */
.modal-close-btn {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1001;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.9);
  border: none;
  border-radius: 50%;
  font-size: 24px;
  color: #666;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
  opacity: 0;
  visibility: hidden;
}

.modal-overlay.show .modal-close-btn {
  opacity: 1;
  visibility: visible;
}

.modal-close-btn:hover {
  background: #fff;
  color: #111;
  transform: scale(1.1);
}

/* 电脑模态框样式 */
.modal-card.computer-modal {
  background: transparent;
  box-shadow: none;
  padding: 0;
  max-width: none;
  width: auto;
  overflow: visible;
}

.modal-card.computer-modal::before {
  display: none;
}

/* 场景容器 */
.scene {
  width: 600px;
  height: 480px;
  perspective: 1200px;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* 电脑整体包装 */
.computer-wrapper {
  position: relative;
  width: var(--box-width);
  height: var(--box-height);
  transform-style: preserve-3d;
  transform: rotateX(-8deg) rotateY(-25deg);
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.computer-wrapper:hover {
  transform: rotateX(0deg) rotateY(0deg);
}

/* 主机箱 3D 容器 */
.computer-unit {
  position: absolute;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
}

/* 所有面的基础样式 */
.face {
  position: absolute;
  background: var(--beige-main);
  border: 1px solid rgba(0,0,0,0.08);
}

/* 前面板 */
.face.front {
  width: var(--box-width);
  height: var(--box-height);
  transform: translateZ(calc(var(--box-depth) / 2));
  border-radius: 6px 6px 2px 2px;
  background: linear-gradient(180deg, var(--beige-light) 0%, var(--beige-main) 100%);
}

/* 后面板 */
.face.back {
  width: var(--box-width);
  height: var(--box-height);
  transform: rotateY(180deg) translateZ(calc(var(--box-depth) / 2));
  background: var(--beige-darker);
}

/* 左侧面 */
.face.left {
  width: var(--box-depth);
  height: var(--box-height);
  left: calc(var(--box-width) / 2 - var(--box-depth) / 2);
  transform: rotateY(-90deg) translateZ(calc(var(--box-width) / 2));
  background: linear-gradient(90deg, var(--beige-darker) 0%, var(--beige-main) 100%);
}

/* 右侧面 */
.face.right {
  width: var(--box-depth);
  height: var(--box-height);
  left: calc(var(--box-width) / 2 - var(--box-depth) / 2);
  transform: rotateY(90deg) translateZ(calc(var(--box-width) / 2));
  background: linear-gradient(-90deg, var(--beige-darker) 0%, var(--beige-main) 100%);
}

/* 顶面 */
.face.top {
  width: var(--box-width);
  height: var(--box-depth);
  top: calc(var(--box-height) / 2 - var(--box-depth) / 2);
  transform: rotateX(90deg) translateZ(calc(var(--box-height) / 2));
  background: var(--beige-light);
  border-radius: 6px;
}

/* 底面 */
.face.bottom {
  width: var(--box-width);
  height: var(--box-depth);
  top: calc(var(--box-height) / 2 - var(--box-depth) / 2);
  transform: rotateX(-90deg) translateZ(calc(var(--box-height) / 2));
  background: var(--beige-darker);
}

/* 屏幕凹槽 */
.screen-inset {
  position: absolute;
  top: 20px;
  left: 20px;
  right: 20px;
  height: 195px;
  background: var(--bezel-dark);
  border-radius: 8px;
  padding: 8px;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.6), 0 1px 0 rgba(255,255,255,0.1);
}

/* CRT 屏幕 */
.crt {
  width: 100%;
  height: 100%;
  background: var(--crt-bg);
  border-radius: 4px;
  padding: 12px;
  font-size: 11px;
  line-height: 1.5;
  color: var(--terminal-text);
  overflow: hidden;
  position: relative;
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
}

/* CRT 扫描线效果 */
.crt::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.03) 2px, rgba(0,0,0,0.03) 4px);
  pointer-events: none;
}

/* CRT 屏幕反光 */
.crt::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
  pointer-events: none;
  border-radius: 4px;
}

/* 终端窗口标题栏 */
.terminal-header {
  display: flex;
  justify-content: space-between;
  padding-bottom: 6px;
  margin-bottom: 8px;
  border-bottom: 1px solid #ddd;
  font-size: 10px;
  color: #666;
}

.terminal-content {
  position: relative;
  z-index: 1;
  text-align: left;
}

.terminal-content p {
  margin: 0 0 6px 0;
  white-space: nowrap;
  text-align: left;
}

/* 光标闪烁 */
.cursor {
  display: inline-block;
  width: 7px;
  height: 12px;
  background: var(--terminal-text);
  animation: cursor-blink 1s step-end infinite;
  vertical-align: middle;
  margin-left: 2px;
}

@keyframes cursor-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* 软驱槽 */
.floppy-slot {
  position: absolute;
  top: 215px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 8px;
  background: linear-gradient(180deg, #1a1a1a 0%, #333 100%);
  border-radius: 1px;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.5);
}

/* 散热孔 */
.vent-grid {
  position: absolute;
  bottom: 20px;
  right: 20px;
  display: flex;
  gap: 4px;
}

.vent {
  width: 3px;
  height: 35px;
  background: linear-gradient(180deg, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.08) 100%);
  border-radius: 1px;
}

/* 电源指示灯 */
.power-led {
  position: absolute;
  bottom: 25px;
  left: 25px;
  width: 8px;
  height: 8px;
  background: #4a4;
  border-radius: 50%;
  box-shadow: 0 0 6px #4a4, inset 0 1px 2px rgba(255,255,255,0.3);
  animation: led-glow 2s ease-in-out infinite;
}

@keyframes led-glow {
  0%, 100% { box-shadow: 0 0 6px #4a4, inset 0 1px 2px rgba(255,255,255,0.3); }
  50% { box-shadow: 0 0 10px #6c6, inset 0 1px 2px rgba(255,255,255,0.3); }
}

/* 键盘 */
.keyboard-assembly {
  position: absolute;
  width: 260px;
  height: 90px;
  bottom: -70px;
  left: 50%;
  transform-style: preserve-3d;
  transform: translateX(-50%) translateZ(150px) rotateX(75deg);
}

.kb-top {
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, var(--beige-light) 0%, var(--beige-main) 100%);
  border-radius: 4px;
  border: 1px solid rgba(0,0,0,0.1);
  transform-style: preserve-3d;
}

.kb-front {
  position: absolute;
  width: 100%;
  height: 12px;
  bottom: 0;
  background: var(--beige-darker);
  transform-origin: bottom center;
  transform: rotateX(90deg);
  border-radius: 0 0 2px 2px;
}

.keys-grid {
  position: absolute;
  top: 8px; left: 8px; right: 8px; bottom: 8px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: repeat(4, 1fr);
  gap: 4px;
}

.key {
  background: linear-gradient(180deg, #fff 0%, #f0f0f0 100%);
  border-radius: 3px;
  box-shadow: 0 1px 0 #ccc, 0 2px 1px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.8);
}

.key.space {
  grid-column: span 5;
}

.key.wide {
  grid-column: span 2;
}

.kb-shadow {
  position: absolute;
  width: 240px;
  height: 60px;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%) rotateX(90deg) translateZ(-5px);
  background: radial-gradient(ellipse, rgba(0,0,0,0.15) 0%, transparent 70%);
  filter: blur(5px);
}

.computer-shadow {
  position: absolute;
  width: 280px;
  height: 180px;
  bottom: -100px;
  left: 50%;
  transform: translateX(-50%) rotateX(90deg) translateZ(-10px);
  background: radial-gradient(ellipse, rgba(0,0,0,0.2) 0%, transparent 70%);
  filter: blur(10px);
}

/* 响应式 - 3D 电脑 */
@media (max-width: 700px) {
  .scene {
    width: 340px;
    height: 320px;
    transform: scale(0.75);
  }

  .modal-close-btn {
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    font-size: 20px;
  }
}