/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 70px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", sans-serif;
  background: #0d0d1a;
  color: #e8e8f0;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: #7b8cff; text-decoration: none; -webkit-tap-highlight-color: transparent; }
a:hover { color: #a0adff; }
img { max-width: 100%; }
.container { max-width: 960px; margin: 0 auto; padding: 0 20px; }

/* === NAV === */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(13,13,26,0.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(123,140,255,0.15);
}
.nav-inner {
  max-width: 960px; margin: 0 auto; padding: 0 20px;
  display: flex; align-items: center; justify-content: space-between; height: 60px;
}
.nav-brand { font-size: 1.1rem; font-weight: 700; color: #fff; }
.nav-links { display: flex; gap: 20px; align-items: center; }
.nav-links a { font-size: 0.9rem; color: #b0b0c8; transition: color 0.2s; }
.nav-links a:hover { color: #fff; }
.nav-cta {
  background: linear-gradient(135deg, #4a5aff, #7b8cff);
  color: #fff !important; padding: 6px 16px; border-radius: 20px; font-weight: 600; font-size: 0.85rem;
}
.nav-cta:hover { opacity: 0.9; }
.nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; }

/* === HERO === */
.hero {
  position: relative; padding: 140px 0 80px; text-align: center;
  overflow: hidden; min-height: 85vh; display: flex; align-items: center;
}
.hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(74,90,255,0.25) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 80%, rgba(60,255,82,0.08) 0%, transparent 50%);
}
.hero-content { position: relative; z-index: 1; }
.hero-badge {
  display: inline-block; padding: 6px 18px; border-radius: 20px;
  background: rgba(123,140,255,0.15); color: #a0adff; font-size: 0.85rem; font-weight: 500;
  margin-bottom: 24px; border: 1px solid rgba(123,140,255,0.25);
}
.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem); font-weight: 800; letter-spacing: -1px;
  background: linear-gradient(135deg, #fff 40%, #7b8cff);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; margin-bottom: 16px;
}
.hero-sub { font-size: 1.15rem; color: #b0b0c8; margin-bottom: 24px; }
.hero-price { font-size: 2rem; font-weight: 700; color: #4aff6e; margin-bottom: 28px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 20px; }
.hero-preorder-notice {
  display: inline-block; padding: 10px 24px; border-radius: 12px;
  background: rgba(255,74,110,0.15); border: 1px solid rgba(255,74,110,0.3);
  color: #ff6b8a; font-size: 1rem; font-weight: 600;
  margin-bottom: 20px; animation: preorderPulse 2s infinite;
}
@keyframes preorderPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}
.btn-preorder {
  background: linear-gradient(135deg, #06C755, #00B347) !important;
  box-shadow: 0 4px 20px rgba(6,199,85,0.3) !important;
}
.btn-preorder:hover {
  box-shadow: 0 6px 28px rgba(6,199,85,0.4) !important;
}
.hero-note { font-size: 0.8rem; color: #666; }

/* === BUTTONS === */
.btn {
  display: inline-block; padding: 12px 28px; border-radius: 28px;
  font-size: 1rem; font-weight: 600; cursor: pointer; transition: all 0.2s;
  border: none; text-align: center;
}
.btn-primary {
  background: linear-gradient(135deg, #4a5aff, #7b8cff); color: #fff;
  box-shadow: 0 4px 20px rgba(74,90,255,0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 28px rgba(74,90,255,0.4); color: #fff; }
.btn-outline {
  background: transparent; color: #7b8cff;
  border: 1.5px solid rgba(123,140,255,0.4);
}
.btn-outline:hover { border-color: #7b8cff; color: #fff; }

/* === SECTIONS === */
.section { padding: 80px 0; }
.section-alt { background: rgba(123,140,255,0.04); }
.section-title {
  font-size: clamp(1.6rem, 4vw, 2.2rem); font-weight: 700; text-align: center;
  margin-bottom: 48px; letter-spacing: -0.5px;
}
.accent { color: #7b8cff; }

/* === PREORDER === */
.section-preorder { background: linear-gradient(135deg, rgba(255,74,110,0.06), rgba(74,90,255,0.06)); }
.preorder-info { max-width: 600px; margin: 0 auto; }
.preorder-details { text-align: center; margin-bottom: 36px; }
.preorder-price-box {
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,74,110,0.2);
  border-radius: 16px; padding: 24px; margin-bottom: 16px;
}
.preorder-label { font-size: 0.85rem; color: #888; margin-bottom: 4px; }
.preorder-price { font-size: 2.2rem; font-weight: 800; color: #4aff6e; }
.preorder-unit { font-size: 1rem; font-weight: 400; color: #888; }
.preorder-bonus { font-size: 0.9rem; color: #ff6b8a; font-weight: 600; margin-top: 8px; }
.preorder-ship {
  font-size: 1rem; color: #d0d0e0; padding: 12px 20px;
  background: rgba(123,140,255,0.08); border-radius: 12px;
}
.preorder-steps { display: flex; flex-direction: column; gap: 20px; }
.preorder-step {
  background: rgba(255,255,255,0.03); border: 1px solid rgba(123,140,255,0.12);
  border-radius: 16px; padding: 20px; display: flex; flex-direction: column; align-items: center;
  gap: 10px; text-align: center;
}
.preorder-step-num { font-size: 1.8rem; }
.preorder-step-text { font-size: 1rem; font-weight: 600; color: #e8e8f0; }
.preorder-bank {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px;
  background: rgba(0,0,0,0.3); padding: 12px 16px; border-radius: 10px;
  font-family: monospace; font-size: 0.9rem;
}
.bank-name { color: #a0adff; font-weight: 600; }
.bank-account { color: #4aff6e; font-weight: 700; letter-spacing: 1px; }
.copy-btn-sm {
  background: rgba(123,140,255,0.2); border: 1px solid rgba(123,140,255,0.3);
  color: #a0adff; padding: 4px 12px; border-radius: 12px; font-size: 0.75rem;
  cursor: pointer; transition: all 0.2s;
}
.copy-btn-sm:hover { background: rgba(123,140,255,0.3); color: #fff; }
.btn-sm { padding: 8px 20px; font-size: 0.85rem; border-radius: 20px; font-weight: 600; display: inline-block; }
.btn-line { background: linear-gradient(135deg, #06C755, #00B347); color: #fff !important; }
.btn-line:hover { opacity: 0.9; color: #fff; }
.btn-form { background: linear-gradient(135deg, #4a5aff, #7b8cff); color: #fff !important; }
.btn-form:hover { opacity: 0.9; color: #fff; }

/* === INTRO VIDEO === */
.section-intro { background: rgba(74,255,110,0.03); }
.section-subtitle {
  text-align: center; font-size: 1.05rem; color: #b0b0c8;
  margin-top: -32px; margin-bottom: 40px;
}
.intro-layout {
  display: flex; align-items: center; gap: 40px; max-width: 800px; margin: 0 auto;
}
.intro-video { flex: 1; min-width: 0; width: 100%; max-width: 420px; margin: 0 auto; }
.intro-text { flex: 1; }
.intro-highlight {
  font-size: 1.4rem; font-weight: 700; color: #fff; margin-bottom: 12px;
}
.intro-desc { font-size: 1rem; color: #b0b0c8; margin-bottom: 20px; }
.intro-steps-mini {
  display: flex; flex-direction: column; gap: 8px;
}
.intro-steps-mini p {
  background: rgba(123,140,255,0.08); border-left: 3px solid #4aff6e;
  padding: 10px 16px; border-radius: 0 10px 10px 0;
  font-size: 0.95rem; color: #d0d0e0; font-weight: 500;
}
@media (max-width: 768px) {
  .section-subtitle { margin-top: -20px; margin-bottom: 24px; }
  .intro-layout { flex-direction: column; gap: 24px; align-items: stretch; }
  .intro-video { width: 100%; max-width: 100%; }
  .intro-video .video-embed { width: 100%; border-radius: 16px; overflow: hidden; background: #000; }
  .intro-text { text-align: center; }
  .intro-steps-mini p { text-align: left; }
}

/* === STEPS === */
.steps-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px; margin-bottom: 32px;
}
.step-card {
  background: rgba(123,140,255,0.08); border: 1px solid rgba(123,140,255,0.15);
  border-radius: 16px; padding: 24px 16px; text-align: center;
  transition: transform 0.2s, border-color 0.2s;
}
.step-card:hover { transform: translateY(-4px); border-color: rgba(123,140,255,0.4); }
.step-num {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, #4a5aff, #7b8cff);
  color: #fff; font-weight: 700; font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center; margin: 0 auto 12px;
}
.step-text { font-size: 0.95rem; color: #d0d0e0; }
.steps-note { text-align: center; color: #b0b0c8; font-size: 0.95rem; line-height: 2; }

/* === VIDEOS === */
.video-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-bottom: 32px; }
.video-card {
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px; overflow: hidden; transition: transform 0.2s;
}
.video-card:hover { transform: translateY(-4px); }
.video-embed { position: relative; padding-bottom: 56.25%; height: 0; }
.video-embed iframe {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none;
}
.video-label { padding: 12px 16px; font-size: 0.9rem; font-weight: 600; }
.center-action { text-align: center; }

/* === FAQ === */
.faq-list { max-width: 700px; margin: 0 auto; }
.faq-item {
  border: 1px solid rgba(123,140,255,0.12); border-radius: 12px;
  margin-bottom: 12px; overflow: hidden; background: rgba(255,255,255,0.02);
}
.faq-q {
  width: 100%; padding: 18px 20px; background: none; border: none; color: #e8e8f0;
  font-size: 1rem; font-weight: 600; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; text-align: left;
}
.faq-q:hover { color: #7b8cff; }
.faq-icon { font-size: 1.4rem; color: #7b8cff; transition: transform 0.3s; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a {
  max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s;
  padding: 0 20px; color: #b0b0c8; font-size: 0.92rem; line-height: 1.8;
}
.faq-item.open .faq-a { max-height: 600px; padding: 0 20px 20px; }
.faq-a p { margin-bottom: 10px; }
.faq-a ol { padding-left: 20px; margin-bottom: 10px; }
.faq-a li { margin-bottom: 6px; }

/* === GPX CONVERTER === */
.converter-card {
  max-width: 980px; margin: 0 auto;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(123,140,255,0.14);
  border-radius: 20px; padding: 24px;
  box-shadow: 0 12px 36px rgba(0,0,0,0.18);
}
.converter-actions {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  margin-bottom: 16px;
}
.converter-upload-btn { cursor: pointer; }
#gpxFileInput { display: none; }
.converter-tip {
  color: #b0b0c8; font-size: 0.92rem; margin-bottom: 16px;
}
.converter-tip code {
  background: rgba(0,0,0,0.28); padding: 3px 8px; border-radius: 8px; color: #4aff6e;
  word-break: break-all;
}
.converter-status {
  margin-bottom: 16px; padding: 12px 14px; border-radius: 12px;
  background: rgba(123,140,255,0.08); border: 1px solid rgba(123,140,255,0.14);
  color: #d8daf7; font-size: 0.92rem;
}
.converter-status.success {
  background: rgba(74,255,110,0.08); border-color: rgba(74,255,110,0.18); color: #97ffab;
}
.converter-status.warn {
  background: rgba(255,191,71,0.08); border-color: rgba(255,191,71,0.18); color: #ffd37b;
}
.converter-status.error {
  background: rgba(255,74,110,0.08); border-color: rgba(255,74,110,0.18); color: #ff95ac;
}
.converter-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px;
}
.converter-grid-hidden {
  display: none;
}
.converter-panel {
  display: flex; flex-direction: column; gap: 8px;
}
.converter-label {
  font-size: 0.92rem; font-weight: 600; color: #dfe2ff;
}
.converter-textarea {
  width: 100%; min-height: 320px; resize: vertical;
  border-radius: 16px; border: 1px solid rgba(123,140,255,0.16);
  background: rgba(7,10,24,0.92); color: #eef0ff;
  padding: 16px; font: 14px/1.7 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}
.converter-textarea:focus {
  outline: none; border-color: rgba(123,140,255,0.42); box-shadow: 0 0 0 3px rgba(123,140,255,0.12);
}
.converter-textarea[readonly] { color: #cfe8d1; }
@media (max-width: 768px) {
  .converter-card { padding: 18px; }
  .converter-grid { grid-template-columns: 1fr; }
  .converter-textarea { min-height: 240px; }
}

/* === APP DOWNLOAD === */
.app-download-grid {
  display: flex; justify-content: center; gap: 48px;
  max-width: 800px; margin: 0 auto;
}
.app-download-hint {
  text-align: center; color: #b0b0c8; font-size: 0.95rem; margin-top: 20px;
}
.app-icon-link {
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  text-decoration: none; flex-shrink: 0;
}
.app-icon {
  width: 120px; height: 120px;
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.2s, box-shadow 0.2s;
}
.app-icon-link:hover .app-icon {
  transform: translateY(-4px) scale(1.04);
}
.app-icon-img {
  width: 100%; height: 100%; object-fit: contain;
}
.app-icon-name {
  font-size: 1rem; font-weight: 700; color: #e8e8f0;
}
.app-icon-tap {
  font-size: 0.85rem; font-weight: 600; color: #7b8cff;
  transition: color 0.2s;
}
.app-icon-link:hover .app-icon-tap { color: #a0adff; }
@media (max-width: 768px) {
  .app-download-grid { gap: 32px; }
  .app-icon { width: 100px; height: 100px; }
}

/* === COMMUNITY === */
.community-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
}
.community-card {
  background: rgba(123,140,255,0.08); border: 1px solid rgba(123,140,255,0.12);
  border-radius: 16px; padding: 28px 16px; text-align: center;
  transition: transform 0.2s, border-color 0.2s; color: #e8e8f0;
}
.community-card:hover { transform: translateY(-4px); border-color: rgba(123,140,255,0.4); color: #fff; }
.community-emoji { font-size: 2rem; margin-bottom: 8px; }
.community-name { font-size: 0.9rem; font-weight: 600; }

/* === FOOTER === */
.footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 32px 0; text-align: center; color: #666; font-size: 0.85rem;
}
.footer-links { margin-top: 12px; display: flex; gap: 20px; justify-content: center; }
.footer-links a { color: #888; }
.footer-links a:hover { color: #7b8cff; }

/* === SUPPORT TOOLS (hidden section) === */
.support-section {
  display: none; background: #0a0a16; border-top: 2px solid #4a5aff; padding: 60px 0;
}
.support-section:target { display: block; }
.support-note { text-align: center; color: #888; margin-bottom: 32px; font-size: 0.9rem; }
.support-grid { display: grid; gap: 16px; }
.support-card {
  background: rgba(255,255,255,0.04); border: 1px solid rgba(123,140,255,0.15);
  border-radius: 12px; padding: 20px; position: relative;
}
.support-card-title { font-weight: 700; color: #7b8cff; margin-bottom: 10px; font-size: 1rem; }
.support-card-body { color: #b0b0c8; font-size: 0.88rem; white-space: pre-wrap; line-height: 1.7; }
.support-copy-btn {
  position: absolute; top: 16px; right: 16px;
  background: linear-gradient(135deg, #4a5aff, #7b8cff); color: #fff;
  border: none; padding: 6px 16px; border-radius: 16px; font-size: 0.8rem;
  font-weight: 600; cursor: pointer; transition: opacity 0.2s;
}
.support-copy-btn:hover { opacity: 0.85; }
.support-copy-btn.copied { background: #4aff6e; color: #0d0d1a; }

/* === CHATBOT WIDGET === */
.chatbot-fab {
  position: fixed; bottom: 24px; right: 24px; z-index: 9999;
  width: 60px; height: 60px; border-radius: 50%;
  background: linear-gradient(135deg, #4a5aff, #7b8cff);
  box-shadow: 0 4px 20px rgba(74,90,255,0.4);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: transform 0.2s, box-shadow 0.2s;
}
.chatbot-fab:hover { transform: scale(1.1); box-shadow: 0 6px 28px rgba(74,90,255,0.5); }
.chatbot-fab-icon { font-size: 1.6rem; transition: transform 0.3s; }
.chatbot-fab.open .chatbot-fab-icon { transform: rotate(90deg); }
.chatbot-fab-badge {
  position: absolute; top: -2px; right: -2px;
  width: 20px; height: 20px; border-radius: 50%;
  background: #ff4a6e; color: #fff; font-size: 0.7rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  animation: badgePulse 2s infinite;
}
.chatbot-fab-badge.hidden { display: none; }
@keyframes badgePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

.chatbot-window {
  position: fixed; bottom: 96px; right: 24px; z-index: 9998;
  width: 370px; max-width: calc(100vw - 32px); height: 520px; max-height: 70vh;
  background: #13132a; border: 1px solid rgba(123,140,255,0.2);
  border-radius: 20px; overflow: hidden;
  display: flex; flex-direction: column;
  box-shadow: 0 12px 48px rgba(0,0,0,0.5);
  transform: translateY(20px) scale(0.95); opacity: 0; pointer-events: none;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.chatbot-window.open {
  transform: translateY(0) scale(1); opacity: 1; pointer-events: all;
}

.chatbot-header {
  background: linear-gradient(135deg, #1a1a3a, #252550);
  padding: 16px 20px; display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid rgba(123,140,255,0.15);
}
.chatbot-header-info { display: flex; align-items: center; gap: 12px; }
.chatbot-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(123,140,255,0.2); display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
}
.chatbot-name { font-weight: 700; font-size: 0.95rem; color: #fff; }
.chatbot-status { font-size: 0.75rem; color: #4aff6e; }
.chatbot-close {
  background: none; border: none; color: #888; font-size: 1.2rem; cursor: pointer;
  padding: 4px 8px; border-radius: 8px; transition: background 0.2s;
}
.chatbot-close:hover { background: rgba(255,255,255,0.1); color: #fff; }

.chatbot-body {
  flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 12px;
  scrollbar-width: thin; scrollbar-color: rgba(123,140,255,0.2) transparent;
}
.chatbot-body::-webkit-scrollbar { width: 4px; }
.chatbot-body::-webkit-scrollbar-thumb { background: rgba(123,140,255,0.3); border-radius: 4px; }

.chat-msg {
  max-width: 85%; padding: 10px 14px; border-radius: 16px;
  font-size: 0.88rem; line-height: 1.6; word-break: break-word;
  animation: msgFadeIn 0.3s ease;
}
@keyframes msgFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.chat-msg.bot {
  align-self: flex-start; background: rgba(123,140,255,0.12); color: #d0d0e8;
  border-bottom-left-radius: 4px;
}
.chat-msg.user {
  align-self: flex-end; background: linear-gradient(135deg, #4a5aff, #6a7aff); color: #fff;
  border-bottom-right-radius: 4px;
}
.chat-msg a { color: #a0c0ff; text-decoration: underline; }
.chat-msg.bot a:hover { color: #fff; }

.chat-typing {
  align-self: flex-start; padding: 10px 18px; border-radius: 16px;
  background: rgba(123,140,255,0.12); display: flex; gap: 4px; align-items: center;
}
.chat-typing span {
  width: 6px; height: 6px; border-radius: 50%; background: #7b8cff;
  animation: typingDot 1.2s infinite;
}
.chat-typing span:nth-child(2) { animation-delay: 0.2s; }
.chat-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingDot {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-4px); }
}

.chatbot-quick-wrap {
  border-top: 1px solid rgba(123,140,255,0.1);
  background: rgba(13,13,26,0.35);
}
.chatbot-quick-toggle {
  width: 100%; background: transparent; border: none; color: #a0adff;
  font-size: 0.95rem; padding: 6px 0 4px; cursor: pointer; transition: color 0.2s, transform 0.2s;
}
.chatbot-quick-toggle:hover { color: #fff; }
.chatbot-quick {

  padding: 8px 16px 12px; display: flex; flex-wrap: wrap; gap: 6px;
}
.chatbot-quick.collapsed { display: none; }
.chatbot-quick:empty { display: none; padding: 0; }
.chatbot-quick-wrap.empty { display: none; }
.quick-btn {
  background: rgba(123,140,255,0.1); border: 1px solid rgba(123,140,255,0.2);
  color: #a0adff; padding: 6px 12px; border-radius: 16px; font-size: 0.78rem;
  cursor: pointer; transition: all 0.2s; white-space: nowrap;
}
.quick-btn:hover { background: rgba(123,140,255,0.2); color: #fff; border-color: rgba(123,140,255,0.4); }

.chatbot-input-area {
  padding: 12px 16px; display: flex; gap: 8px;
  border-top: 1px solid rgba(123,140,255,0.15); background: rgba(13,13,26,0.6);
}
.chatbot-input {
  flex: 1; background: rgba(255,255,255,0.06); border: 1px solid rgba(123,140,255,0.15);
  border-radius: 20px; padding: 10px 16px; color: #e8e8f0; font-size: 0.88rem;
  outline: none; transition: border-color 0.2s;
}
.chatbot-input:focus { border-color: rgba(123,140,255,0.5); }
.chatbot-input::placeholder { color: #555; }
.chatbot-send {
  width: 40px; height: 40px; border-radius: 50%; border: none;
  background: linear-gradient(135deg, #4a5aff, #7b8cff); color: #fff;
  font-size: 1.1rem; cursor: pointer; transition: opacity 0.2s;
  display: flex; align-items: center; justify-content: center;
}
.chatbot-send:hover { opacity: 0.85; }

/* === MOBILE (tablet) === */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute;
    top: 60px; left: 0; right: 0; background: rgba(13,13,26,0.98);
    padding: 20px; gap: 16px; border-bottom: 1px solid rgba(123,140,255,0.15);
  }
  .nav-toggle { display: block; }
  .hero { padding: 120px 0 60px; min-height: auto; }
  .hero h1 { font-size: 2.2rem; }
  .hero-sub { font-size: 1rem; }
  .hero-price { font-size: 1.6rem; }
  .hero-actions { flex-direction: column; align-items: center; gap: 10px; }
  .btn { width: 80%; max-width: 280px; padding: 14px 24px; }
  .steps-grid { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; }
  .video-grid { grid-template-columns: 1fr; }
  .community-grid { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 60px 0; }
  .section-title { font-size: 1.4rem; margin-bottom: 32px; }
  .faq-q { padding: 16px; font-size: 0.95rem; min-height: 48px; }
  .faq-a { font-size: 0.88rem; }
  .chatbot-window { width: calc(100vw - 16px); right: 8px; bottom: 88px; height: 60vh; border-radius: 16px; }
  .chatbot-fab { bottom: 16px; right: 16px; width: 54px; height: 54px; }
}

/* === MOBILE (small phones, iPhone SE / mini) === */
@media (max-width: 414px) {
  .container { padding: 0 16px; }
  .hero { padding: 100px 0 48px; }
  .hero h1 { font-size: 1.8rem; letter-spacing: -0.5px; }
  .hero-badge { font-size: 0.78rem; padding: 5px 14px; }
  .hero-sub { font-size: 0.9rem; }
  .hero-price { font-size: 1.4rem; margin-bottom: 20px; }
  .hero-note { font-size: 0.72rem; }
  .btn { width: 90%; font-size: 0.9rem; padding: 13px 20px; }
  .steps-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .step-card { padding: 16px 10px; }
  .step-num { width: 34px; height: 34px; font-size: 1rem; }
  .step-text { font-size: 0.85rem; }
  .steps-note { font-size: 0.85rem; }
  .section { padding: 48px 0; }
  .section-title { font-size: 1.25rem; margin-bottom: 24px; }
  .video-label { padding: 10px 12px; font-size: 0.82rem; }
  .intro-video { margin-bottom: 4px; }
  .faq-q { padding: 14px 16px; font-size: 0.9rem; min-height: 52px; }
  .faq-icon { font-size: 1.2rem; }
  .faq-a { padding: 0 16px; font-size: 0.84rem; line-height: 1.7; }
  .faq-item.open .faq-a { padding: 0 16px 16px; }
  .community-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .community-card { padding: 20px 10px; }
  .community-emoji { font-size: 1.6rem; }
  .community-name { font-size: 0.82rem; }
  .footer { padding: 24px 0; font-size: 0.78rem; }
  .footer-links { gap: 14px; }
  .chatbot-window { bottom: 78px; height: 55vh; }
  .chatbot-body { padding: 12px; }
  .chat-msg { font-size: 0.84rem; padding: 9px 12px; }
  .quick-btn { font-size: 0.72rem; padding: 5px 10px; }
  .chatbot-input { font-size: 0.84rem; padding: 9px 14px; }
}

/* === MOBILE (very small, iPhone SE 1st gen 320px) === */
@media (max-width: 350px) {
  .hero h1 { font-size: 1.5rem; }
  .hero-price { font-size: 1.2rem; }
  .steps-grid { grid-template-columns: 1fr; }
  .step-card { padding: 14px; }
  .community-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
}

/* === Chatbot keyboard fix (mobile) === */
@media (max-height: 500px) {
  .chatbot-window { height: 90vh; bottom: 8px; }
  .chatbot-body { flex: 1; min-height: 0; }
  .chatbot-quick { max-height: 60px; overflow-x: auto; flex-wrap: nowrap; }
}