@charset "utf-8";
:root {
  --primary: #E87A8B;
  --primary-dark: #C85A6B;
  --secondary: #A18CD1;
  --accent: #FDCB9E;
  --bg: #FFF8F9;
  --bg-dark: #0F172A;
  --surface: #FFFFFF;
  --text: #1E293B;
  --text-secondary: #64748B;
  --text-light: #94A3B8;
  --border: #F0E0E3;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.1);
  --shadow-hover: 0 20px 50px rgba(232,122,139,0.18);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --gradient: linear-gradient(135deg, #E87A8B 0%, #A18CD1 100%);
  --gradient-soft: linear-gradient(135deg, rgba(232,122,139,0.08) 0%, rgba(161,140,209,0.08) 100%);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

img, svg {
  display: block;
  max-width: 100%;
}

i.icon {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}
i.icon::before {
  content: '';
  display: block;
  width: 100%;
  height: 100%;
  background: center/contain no-repeat;
}

i.icon-s16 { width: 16px; height: 16px; }
i.icon-s18 { width: 18px; height: 18px; }
i.icon-s20 { width: 20px; height: 20px; }
i.icon-s24 { width: 24px; height: 24px; }
i.icon-s28 { width: 28px; height: 28px; }
i.icon-android::before { background-image: url(../assets/icons/android.svg); }
i.icon-apple::before { background-image: url(../assets/icons/apple.svg); }
i.icon-chevron-up::before { background-image: url(../assets/icons/chevron-up.svg); }
i.icon-download::before { background-image: url(../assets/icons/download.svg); }
i.icon-feature-gentle::before { background-image: url(../assets/icons/feature-gentle.svg); }
i.icon-feature-heal::before { background-image: url(../assets/icons/feature-heal.svg); }
i.icon-feature-lover::before { background-image: url(../assets/icons/feature-lover.svg); }
i.icon-feature-memory::before { background-image: url(../assets/icons/feature-memory.svg); }
i.icon-feature-night::before { background-image: url(../assets/icons/feature-night.svg); }
i.icon-feature-vent::before { background-image: url(../assets/icons/feature-vent.svg); }
i.icon-heart::before { background-image: url(../assets/icons/heart.svg); }
i.icon-logo::before { background-image: url(../assets/icons/logo.svg); }
i.icon-mobile::before { background-image: url(../assets/icons/mobile.svg); }
i.icon-pc::before { background-image: url(../assets/icons/pc.svg); }
i.icon-scene-calendar::before { background-image: url(../assets/icons/scene-calendar.svg); }
i.icon-scene-clock::before { background-image: url(../assets/icons/scene-clock.svg); }
i.icon-send::before { background-image: url(../assets/icons/send.svg); }
i.icon-tag-file::before { background-image: url(../assets/icons/tag-file.svg); }
i.icon-tag-message::before { background-image: url(../assets/icons/tag-message.svg); }
i.icon-tag-moon::before { background-image: url(../assets/icons/tag-moon.svg); }
i.icon-tag-pulse::before { background-image: url(../assets/icons/tag-pulse.svg); }
i.icon-tag-smile::before { background-image: url(../assets/icons/tag-smile.svg); }

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

ul, ol {
  list-style: none;
  padding: 0;
  margin: 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--gradient-soft);
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 100px;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.scroll-animate {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-animate.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: background 0.3s ease, box-shadow 0.3s ease;
  background: transparent;
  will-change: transform;
}

.header.is-scrolled {
  background: rgba(255,255,255,0.95);
  box-shadow: var(--shadow);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
}

.logo-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 10px;
  object-fit: cover;
}

.nav-desktop {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 8px;
  position: relative;
}

.nav-link:hover {
  color: var(--primary);
  background: rgba(232,122,139,0.06);
}

.nav-link.is-active {
  color: var(--primary);
  background: rgba(232,122,139,0.1);
  font-weight: 600;
}

.nav-cta {
  background: var(--gradient);
  color: #fff !important;
  margin-left: 8px;
  box-shadow: 0 4px 14px rgba(232,122,139,0.35);
}

.nav-cta:hover {
  color: #fff !important;
  background: var(--gradient);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 1001;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.is-active .hamburger:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.is-active .hamburger:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-active .hamburger:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.nav-mobile {
  display: none;
  position: absolute;
  top: 72px;
  left: 0;
  width: 100%;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.nav-mobile.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
}

.mobile-link {
  padding: 14px 20px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-link:not(.mobile-cta):hover {
  background: var(--gradient-soft);
  color: var(--primary);
}

.mobile-cta {
  background: var(--gradient);
  color: #fff !important;
  margin-top: 8px;
  justify-content: center;
}

.banner {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 0 60px;
  overflow: hidden;
}

.banner-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
  animation: orbFloat 8s ease-in-out infinite;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: linear-gradient(135deg, #E87A8B, #F0A0AD);
  top: -100px;
  right: -100px;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, #D4B8E0, #A18CD1);
  bottom: -80px;
  left: -80px;
  animation-delay: -4s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-20px, 20px) scale(1.05); }
}

.banner-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.badge {
  display: inline-block;
  padding: 8px 18px;
  background: var(--gradient-soft);
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 100px;
  margin-bottom: 24px;
  border: 1px solid rgba(232,122,139,0.15);
}

.banner-title {
  margin-bottom: 20px;
}

.title-line {
  display: block;
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  color: var(--text);
}

.title-line:first-child {
  margin-bottom: 8px;
}

.title-line:last-child {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.banner-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.banner-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 100px;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 8px 28px rgba(232,122,139,0.35);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 36px rgba(232,122,139,0.45);
}

.btn-primary:active {
  transform: translateY(-1px) scale(0.98);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1.5px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.chat-window {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(0,0,0,0.04);
  overflow: hidden;
  max-width: 420px;
  margin-left: auto;
  animation: chatFloat 6s ease-in-out infinite;
}

@keyframes chatFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(232,122,139,0.04), rgba(161,140,209,0.04));
}

.chat-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.chat-name {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text);
}

.chat-status {
  font-size: 0.75rem;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  width: 7px;
  height: 7px;
  background: #34D399;
  border-radius: 50%;
  animation: statusPulse 2s infinite;
}

@keyframes statusPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.chat-body {
  padding: 20px;
  min-height: 220px;
  max-height: 320px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chat-msg {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 85%;
  animation: msgIn 0.4s ease-out;
}

@keyframes msgIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.ai-msg {
  align-self: flex-start;
}

.user-msg {
  align-self: flex-end;
}

.msg-bubble {
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 0.875rem;
  line-height: 1.6;
  word-break: break-word;
}

.ai-msg .msg-bubble {
  background: #F1F5F9;
  color: var(--text);
  border-bottom-left-radius: 4px;
}

.user-msg .msg-bubble {
  background: var(--gradient);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.msg-time {
  font-size: 0.6875rem;
  color: var(--text-light);
  padding: 0 4px;
}

.ai-msg .msg-time { align-self: flex-start; }
.user-msg .msg-time { align-self: flex-end; }

.typing-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--primary);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: cursorBlink 1s step-end infinite;
}

@keyframes cursorBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.chat-input-area {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: #FAFBFC;
}

.chat-input-box {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 10px 16px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  min-height: 40px;
  display: flex;
  align-items: center;
}

.input-cursor {
  display: inline-block;
  width: 2px;
  height: 16px;
  background: var(--primary);
  animation: cursorBlink 1s step-end infinite;
}

.chat-send-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}

.chat-send-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(232,122,139,0.35);
}

.tag-bar {
  position: relative;
  z-index: 1;
  margin-top: 60px;
}

.tag-list {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.tag-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.tag-item:hover {
  background: var(--surface);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.tag-item i {
  flex-shrink: 0;
}

.section-features {
  background: var(--bg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-8px) rotateX(2deg);
  box-shadow: var(--shadow-hover);
  border-color: rgba(232,122,139,0.2);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 24px;
}

.feature-icon i {
  width: 100%;
  height: 100%;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.feature-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ftag {
  padding: 4px 12px;
  background: var(--gradient-soft);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 100px;
}

.section-scenes {
  background: var(--bg);
}

.scenes-wrapper {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.scene-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.scene-tabs::-webkit-scrollbar {
  display: none;
}

.scene-tab {
  flex: 1;
  min-width: 120px;
  padding: 20px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 3px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.scene-tab:hover {
  color: var(--primary);
  background: rgba(232,122,139,0.03);
}

.scene-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  background: rgba(232,122,139,0.04);
}

.scene-panels {
  position: relative;
}

.scene-panel {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  animation: panelFade 0.4s ease-out;
}

.scene-panel.active {
  display: grid;
}

@keyframes panelFade {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

.scene-visual {
  padding: 48px;
  background: linear-gradient(135deg, #FFF8F9 0%, #FFF0F2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.scene-chat-preview {
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.preview-msg {
  padding: 12px 16px;
  border-radius: 14px;
  font-size: 0.875rem;
  line-height: 1.6;
  max-width: 90%;
  animation: msgIn 0.5s ease-out backwards;
}

.preview-msg:nth-child(1) { animation-delay: 0.1s; }
.preview-msg:nth-child(2) { animation-delay: 0.3s; }
.preview-msg:nth-child(3) { animation-delay: 0.5s; }
.preview-msg:nth-child(4) { animation-delay: 0.7s; }

.preview-msg.user {
  align-self: flex-end;
  background: var(--gradient);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.preview-msg.ai {
  align-self: flex-start;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
  box-shadow: var(--shadow-sm);
}

.scene-info {
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.scene-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.scene-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}

.scene-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.scene-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9375rem;
  color: var(--text);
}

.scene-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gradient);
  flex-shrink: 0;
}

.section-preview {
  background: linear-gradient(180deg, #FFF0F2 0%, var(--bg) 100%);
}

.preview-slider {
  width: 100%;
}

.preview-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding-bottom: 16px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--primary) var(--border);
}

.preview-track::-webkit-scrollbar {
  height: 8px;
}

.preview-track::-webkit-scrollbar-track {
  background: var(--border);
  border-radius: 100px;
}

.preview-track::-webkit-scrollbar-thumb {
  background: var(--gradient);
  border-radius: 100px;
}

.preview-slide {
  flex: 0 0 auto;
  scroll-snap-align: start;
  text-align: center;
}

.preview-slide img {
  width: 280px;
  max-width: none;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
}

.preview-mockup {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  max-width: 640px;
  margin: 0 auto 24px;
}

.mockup-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: #FFF8F9;
  border-bottom: 1px solid var(--border);
}

.mockup-dots {
  display: flex;
  gap: 6px;
}

.mockup-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
}

.mockup-dots span:nth-child(1) { background: #FF6B6B; }
.mockup-dots span:nth-child(2) { background: #FFC107; }
.mockup-dots span:nth-child(3) { background: #34D399; }

.mockup-title {
  font-size: 0.8125rem;
  color: var(--text-light);
  font-weight: 500;
}

.mockup-body {
  padding: 32px;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: center;
}

.mock-msg {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.mock-msg.user {
  flex-direction: row-reverse;
}

.mock-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-size: 0.625rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.mock-bubble {
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 0.875rem;
  max-width: 80%;
}

.mock-msg.ai .mock-bubble {
  background: #F1F5F9;
  color: var(--text);
  border-bottom-left-radius: 4px;
}

.mock-msg.user .mock-bubble {
  background: var(--gradient);
  color: #fff;
  border-bottom-right-radius: 4px;
}

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

.mock-scene-item {
  padding: 14px 20px;
  border-radius: 10px;
  background: #FFF8F9;
  border: 1.5px solid var(--border);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: center;
  transition: var(--transition);
}

.mock-scene-item.active {
  background: var(--gradient-soft);
  border-color: var(--primary);
  color: var(--primary);
}

.mockup-history {
  gap: 12px;
}

.mock-history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: #FFF8F9;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.h-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}

.h-time {
  font-size: 0.75rem;
  color: var(--text-light);
}

.section-download {
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
  color: #fff;
  text-align: center;
}

.download-content {
  max-width: 600px;
  margin: 0 auto;
}

.download-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.download-desc {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 40px;
}

.download-btns {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 16px 32px;
  background: rgba(255,255,255,0.08);
  border: 1.5px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  color: #fff;
  transition: var(--transition);
  min-width: 220px;
}

.dl-btn-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

.dl-label {
  font-size: 1rem;
  font-weight: 600;
}

.dl-ver {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
}

.download-note {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.4);
}

.footer {
  background: #0B1120;
  color: rgba(255,255,255,0.7);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 0;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.35);
  border-top: none;
}

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(232,122,139,0.35);
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

@media (max-width: 1199px) {
  .container {
    padding: 0 32px;
  }

  .section {
    padding: 80px 0;
  }

  .title-line {
    font-size: 3rem;
  }
}

@media (max-width: 767px) {
  html {
    font-size: 15px;
  }

  .container {
    padding: 0 20px;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .section-subtitle {
    font-size: 1rem;
  }

  .nav-desktop {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-mobile {
    display: flex;
  }

  .header {
    transition: none;
  }

  .banner {
    min-height: auto;
    padding: 100px 0 40px;
  }

  .banner-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .banner-text {
    text-align: center;
  }

  .banner-actions {
    justify-content: center;
  }

  .title-line {
    font-size: 2.25rem;
  }

  .title-line:first-child {
    font-size: 2.75rem;
    margin-bottom: 2px;
  }

  .title-line:last-child {
    font-size: 2rem;
  }

  .chat-window {
    max-width: 100%;
    margin: 0;
  }

  .tag-list {
    overflow-x: auto;
    flex-wrap: nowrap;
    justify-content: flex-start;
    padding-bottom: 8px;
    -ms-overflow-style: none;
    scrollbar-width: none;
  }

  .tag-list::-webkit-scrollbar {
    display: none;
  }

  .tag-item {
    white-space: nowrap;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .scene-panel {
    grid-template-columns: 1fr;
  }

  .scene-panel.active {
    display: flex;
    flex-direction: column;
  }

  .scene-visual {
    padding: 32px 24px;
    order: 2;
  }

  .scene-info {
    padding: 32px 24px;
    order: 1;
  }

  .scene-tabs {
    gap: 0;
  }

  .scene-tab {
    min-width: 100px;
    padding: 16px 12px;
    font-size: 0.875rem;
  }

  .preview-track {
    min-height: auto;
    gap: 16px;
    scrollbar-width: none;
  }

  .preview-track::-webkit-scrollbar {
    display: none;
  }

  .preview-slide img {
    width: 240px;
  }

  .download-title {
    font-size: 1.75rem;
  }

  .download-btns {
    flex-direction: column;
    align-items: center;
  }

  .download-btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }

  

  

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .scroll-animate {
    opacity: 1;
    transform: none;
  }
}