/* ===============================================================
 * 圈圈 QUAN - Landing Page 專屬樣式
 * =============================================================== */

/* ---------------------------------------------------------------
 * Navbar
 * --------------------------------------------------------------- */
.ln-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition:
    background 0.35s ease,
    border-color 0.35s ease;

  /* CSS scroll-driven animation（現代瀏覽器原生支援，不靠 JS） */
  animation: navScrolled linear both;
  animation-timeline: scroll(root block);
  animation-range: 40px 80px;
}

/* @keyframes navScrolled {
  from {
    background: transparent;
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    border-bottom-color: transparent;
  }
  to {
    background: rgba(10, 10, 10, 0.75);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    border-bottom-color: rgba(255, 107, 107, 0.15);
  }
}

/* 舊版瀏覽器 fallback：JS 仍會加上 .scrolled */
/* .ln-nav.scrolled {
  background: rgba(10, 10, 10, 0.75);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom-color: rgba(255, 107, 107, 0.15);
}  */

.ln-nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: max(14px, env(safe-area-inset-top)) max(24px, env(safe-area-inset-right)) 14px max(24px, env(safe-area-inset-left));
  display: flex;
  align-items: center;
  gap: 16px;
}

.ln-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none !important;
  flex-shrink: 0;
}

.ln-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.ln-logo-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 2px;
}

.ln-logo-en {
  font-size: 11px;
  color: var(--color-primary);
  letter-spacing: 4px;
}

.ln-nav-spacer {
  flex: 1;
}

.ln-lang-switch {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}

.ln-lang-btn {
  background: none;
  border: none;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
}

.ln-lang-btn.active {
  background: var(--color-primary);
  color: #0a0a0a;
}

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

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
}

/* ---------------------------------------------------------------
 * Global Landing Wrapper
 * --------------------------------------------------------------- */
.landing-v2 {
  width: 100%;
  overflow-x: hidden;
}

/* ---------------------------------------------------------------
 * Hero
 * --------------------------------------------------------------- */
.ln-hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(100px + env(safe-area-inset-top)) 24px 60px;
  position: relative;
  overflow: hidden;
}

/* 背景動態光暈 */
.ln-hero::before {
  content: "";
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(
    circle,
    rgba(255, 107, 107, 0.07) 0%,
    transparent 65%
  );
  pointer-events: none;
  animation: heroGlow 6s ease-in-out infinite;
}

@keyframes heroGlow {
  0%,
  100% {
    opacity: 0.6;
    transform: translateX(-50%) scale(1);
  }
  50% {
    opacity: 1;
    transform: translateX(-50%) scale(1.1);
  }
}

.ln-hero-inner {
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
}

.ln-hero-text {
  position: relative;
  z-index: 1;
}

.ln-hero-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}

.ln-hero-brand-text {
  display: flex;
  flex-direction: column;
}

.ln-hero-brand-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 3px;
  line-height: 1;
}

.ln-hero-brand-en {
  font-size: 11px;
  color: var(--color-primary);
  letter-spacing: 5px;
  margin-top: 2px;
}

.ln-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: rgba(255, 107, 107, 0.1);
  border: 1px solid rgba(255, 107, 107, 0.3);
  border-radius: 999px;
  font-size: 12px;
  color: var(--color-primary);
  margin-bottom: 20px;
  animation: fadeInUp 0.6s ease both;
}

.ln-hero-title {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.25;
  margin: 0 0 16px;
  background: linear-gradient(
    135deg,
    var(--text-primary) 40%,
    var(--color-primary) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 0.6s ease 0.1s both;
}

.ln-hero-sub {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0 0 32px;
  animation: fadeInUp 0.6s ease 0.2s both;
}

.ln-hero-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
  animation: fadeInUp 0.6s ease 0.3s both;
}

/* 下載 Mac / Windows 版：用方角圓邊區隔「下載」功能與 CTA 按鈕 */
.ln-mac-download-cta,
.ln-win-download-cta {
  border-radius: 10px !important;
}

.ln-hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  animation: fadeInUp 0.6s ease 0.4s both;
}

.ln-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  font-size: 12px;
  color: var(--text-secondary);
}

.ln-pill .material-symbols-rounded {
  font-size: 14px;
  color: var(--color-primary);
}

/* ---------------------------------------------------------------
 * 手機 Mockup（CSS-only）
 * --------------------------------------------------------------- */
.ln-hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.phone-mockup {
  width: 280px;
  background: var(--bg-card);
  border-radius: 40px;
  border: 1.5px solid var(--border-color);
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.04),
    inset 0 0 0 1px rgba(255, 255, 255, 0.03);
  overflow: hidden;
  position: relative;
}

/* Dynamic Island */
.phone-notch {
  width: 90px;
  height: 26px;
  background: #000;
  border-radius: 0 0 16px 16px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.phone-screen {
  padding: 0;
  background: var(--bg-base);
}

/* Chat header */
.mock-chat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
}

.mock-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-dark)
  );
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.mock-chat-info {
  flex: 1;
}
.mock-chat-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  display: block;
}
.mock-chat-members {
  font-size: 10px;
  color: var(--text-tertiary);
}

/* Chat bubbles */
.mock-messages {
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 340px;
}

.mock-msg {
  display: flex;
  align-items: flex-end;
  gap: 7px;
}

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

.mock-msg-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--bg-elevated);
}

.mock-bubble {
  max-width: 70%;
  padding: 8px 11px;
  border-radius: 16px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-elevated);
}

.mock-msg.me .mock-bubble {
  background: var(--color-primary);
  color: #0a0a0a;
  border-radius: 16px 4px 16px 16px;
}

.mock-msg:not(.me) .mock-bubble {
  border-radius: 4px 16px 16px 16px;
}

.mock-bubble-img {
  width: 100%;
  height: 90px;
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  padding: 0;
  background: #1a2a3a;
}

.mock-bubble-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 10px;
}

.mock-time {
  font-size: 9px;
  color: var(--text-tertiary);
  margin-top: 2px;
  text-align: right;
}

.mock-msg:not(.me) .mock-time {
  text-align: left;
}

/* 加密標示 */
.mock-encrypt-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px;
  font-size: 10px;
  color: var(--text-tertiary);
}

/* Chat input */
.mock-input-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
}

.mock-input {
  flex: 1;
  height: 30px;
  background: var(--bg-elevated);
  border-radius: 15px;
  font-size: 11px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  padding: 0 10px;
}

.mock-send-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0a0a0a;
  font-size: 14px;
}

/* 手機光暈 */
.phone-glow {
  position: absolute;
  inset: -40px;
  background: radial-gradient(
    circle at center,
    rgba(255, 107, 107, 0.12) 0%,
    transparent 70%
  );
  z-index: -1;
  border-radius: 50%;
}

/* 浮動徽章 */
.mock-float-badge {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  font-size: 12px;
  color: var(--text-primary);
  white-space: nowrap;
  animation: floatBadge 4s ease-in-out infinite;
}

.mock-float-badge--lock {
  left: -40px;
  top: 30%;
  animation-delay: 0s;
}

.mock-float-badge--members {
  right: -50px;
  top: 55%;
  animation-delay: 1.5s;
}

.mock-float-badge .material-symbols-rounded {
  font-size: 16px;
  color: var(--color-primary);
}

@keyframes floatBadge {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

/* ---------------------------------------------------------------
 * Section 通用
 * --------------------------------------------------------------- */
.ln-section {
  padding: 100px 24px;
}

.ln-section-inner {
  max-width: 1080px;
  margin: 0 auto;
}

.ln-section-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-primary);
  margin: 0 0 14px;
}

.ln-section-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.3;
  margin: 0 0 16px;
  color: var(--text-primary);
}

.ln-section-desc {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
  margin: 0;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 {
  transition-delay: 0.1s;
}
.reveal-delay-2 {
  transition-delay: 0.2s;
}
.reveal-delay-3 {
  transition-delay: 0.3s;
}
.reveal-delay-4 {
  transition-delay: 0.4s;
}
.reveal-delay-5 {
  transition-delay: 0.5s;
}

/* ---------------------------------------------------------------
 * Feature Rows（交替排列）
 * --------------------------------------------------------------- */
.ln-features {
  background: var(--bg-card);
}

.ln-feature-row {
  max-width: 1080px;
  margin: 0 auto;
  padding: 80px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  border-bottom: 1px solid var(--border-color);
}

.ln-feature-row:last-child {
  border-bottom: none;
}

.ln-feature-row--reverse .ln-feature-visual {
  order: 2;
}
.ln-feature-row--reverse .ln-feature-text {
  order: 1;
}

.ln-feature-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.ln-feat-illustration {
  width: 280px;
  height: 280px;
  border-radius: 32px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* 加密頁面插圖 */
.ill-encrypt {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.ill-lock-ring {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 40px rgba(255, 107, 107, 0.25);
  animation: lockPulse 3s ease-in-out infinite;
}

@keyframes lockPulse {
  0%,
  100% {
    box-shadow: 0 0 20px rgba(255, 107, 107, 0.2);
  }
  50% {
    box-shadow: 0 0 50px rgba(255, 107, 107, 0.5);
  }
}

.ill-lock-ring .material-symbols-rounded {
  font-size: 36px;
  color: var(--color-primary);
}

.ill-keys {
  display: flex;
  gap: 8px;
}

.ill-key {
  padding: 4px 10px;
  background: rgba(255, 107, 107, 0.1);
  border: 1px solid rgba(255, 107, 107, 0.3);
  border-radius: 6px;
  font-size: 10px;
  font-family: monospace;
  color: var(--color-primary);
  letter-spacing: 1px;
}

/* 私密圈插圖 */
.ill-circles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 20px;
}

.ill-person {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.ill-person-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  border: 2px solid transparent;
}

.ill-person-avatar--active {
  border-color: var(--color-primary);
  background: rgba(255, 107, 107, 0.12);
  box-shadow: 0 0 12px rgba(255, 107, 107, 0.3);
}

.ill-person-avatar--muted {
  background: var(--bg-card);
  opacity: 0.4;
}

.ill-person-label {
  font-size: 9px;
  color: var(--text-tertiary);
}

.ill-private-badge {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 107, 107, 0.15);
  border: 1px solid rgba(255, 107, 107, 0.4);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 11px;
  color: var(--color-primary);
  white-space: nowrap;
}

/* 多媒體訊息插圖 */
.ill-media {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  width: 100%;
}

.ill-media-row {
  display: flex;
  gap: 8px;
}

.ill-media-item {
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.ill-media-item--text {
  flex: 1;
  padding: 8px 10px;
  background: var(--bg-elevated);
  font-size: 11px;
  color: var(--text-secondary);
  border-radius: 10px;
}

.ill-media-item--img {
  width: 70px;
  height: 70px;
  background: #1a3a4a;
  flex-shrink: 0;
  overflow: hidden;
}

.ill-media-item--voice {
  flex: 1;
  height: 36px;
  background: rgba(255, 107, 107, 0.08);
  border: 1px solid rgba(255, 107, 107, 0.2);
  border-radius: 18px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 6px;
}

.voice-wave {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
}

.voice-bar {
  width: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  animation: voiceAnim 1.2s ease-in-out infinite;
}

.voice-bar:nth-child(1) {
  height: 8px;
  animation-delay: 0s;
}
.voice-bar:nth-child(2) {
  height: 16px;
  animation-delay: 0.1s;
}
.voice-bar:nth-child(3) {
  height: 12px;
  animation-delay: 0.2s;
}
.voice-bar:nth-child(4) {
  height: 20px;
  animation-delay: 0.3s;
}
.voice-bar:nth-child(5) {
  height: 10px;
  animation-delay: 0.4s;
}
.voice-bar:nth-child(6) {
  height: 18px;
  animation-delay: 0.3s;
}
.voice-bar:nth-child(7) {
  height: 8px;
  animation-delay: 0.2s;
}
.voice-bar:nth-child(8) {
  height: 14px;
  animation-delay: 0.1s;
}

@keyframes voiceAnim {
  0%,
  100% {
    transform: scaleY(0.6);
    opacity: 0.6;
  }
  50% {
    transform: scaleY(1);
    opacity: 1;
  }
}

.ill-media-item--sticker {
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
}

/* ---------------------------------------------------------------
 * 白板 Illustration
 * --------------------------------------------------------------- */
.ill-whiteboard {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  width: 100%;
  max-width: 340px;
  margin: 0 auto;
}

.ill-wb-toolbar {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 8px 12px;
  background: var(--bg-base);
  border-bottom: 1px solid var(--border-color);
}

.ill-wb-tool {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.ill-wb-tool .material-symbols-rounded {
  font-size: 16px;
}

.ill-wb-tool--active {
  background: rgba(255, 107, 107, 0.15);
  color: var(--color-primary);
}

.ill-wb-colors {
  display: flex;
  gap: 5px;
  align-items: center;
  padding: 0 6px;
}

.ill-wb-color {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 2px solid transparent;
  flex-shrink: 0;
}

.ill-wb-color--active {
  border-color: rgba(255, 255, 255, 0.7);
  transform: scale(1.2);
}

.ill-wb-canvas {
  background: #18202e;
  position: relative;
  height: 175px;
  overflow: hidden;
}

.ill-wb-cursor {
  position: absolute;
  bottom: 32px;
  right: 36px;
  font-size: 18px;
  pointer-events: none;
  transform: rotate(-15deg);
  animation: wbCursorFloat 2.5s ease-in-out infinite;
}

@keyframes wbCursorFloat {
  0%,
  100% {
    transform: rotate(-15deg) translate(0, 0);
  }
  50% {
    transform: rotate(-15deg) translate(-5px, -5px);
  }
}

.ill-wb-footer {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  background: var(--bg-base);
  border-top: 1px solid var(--border-color);
}

/* ---------------------------------------------------------------
 * Google Drive Illustration
 * --------------------------------------------------------------- */
.ill-gdrive {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
}

.ill-gdrive-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
}

.ill-gdrive-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.ill-gdrive-status {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 11px;
  color: var(--color-primary);
  margin-top: 2px;
}

.ill-gdrive-folders {
  padding: 4px 0;
}

.ill-gdrive-folder {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  font-size: 12px;
  color: var(--text-secondary);
}

.ill-gdrive-folder .material-symbols-rounded {
  font-size: 18px;
  color: #ea8600;
  flex-shrink: 0;
}

.ill-gdrive-count {
  margin-left: auto;
  font-size: 11px;
  color: var(--text-tertiary);
}

.ill-gdrive-sync {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-base);
}

.ill-gdrive-sync-icon {
  font-size: 14px !important;
  color: var(--color-primary);
  animation: driveSync 2s linear infinite;
}

@keyframes driveSync {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.ln-feature-text {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ln-feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(255, 107, 107, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ln-feature-icon .material-symbols-rounded {
  font-size: 26px;
  color: var(--color-primary);
}

.ln-feature-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.3;
}

.ln-feature-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

.ln-feature-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ln-feature-points li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--text-secondary);
}

.ln-feature-points li::before {
  content: "";
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(255, 107, 107, 0.15);
  border: 1.5px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2381D8D0'%3E%3Cpath d='M9 16.17 4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41L9 16.17z'/%3E%3C/svg%3E");
  background-size: 12px;
  background-repeat: no-repeat;
  background-position: center;
}

/* ---------------------------------------------------------------
 * 功能亮點 Grid
 * --------------------------------------------------------------- */
.ln-highlights {
  padding: 100px 24px;
}

.ln-highlights-header {
  max-width: 1080px;
  margin: 0 auto 48px;
  text-align: center;
}

.ln-highlights-grid {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.ln-highlight-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 24px;
  transition:
    border-color 0.2s ease,
    transform 0.2s ease;
  cursor: default;
}

.ln-highlight-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
}

.ln-highlight-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 107, 107, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.ln-highlight-card-icon .material-symbols-rounded {
  font-size: 22px;
  color: var(--color-primary);
}

.ln-highlight-card-icon--brand {
  background: #fff;
}

.ln-highlight-card-icon--brand svg {
  width: 24px;
  height: 22px;
}

.ln-highlight-card-icon--avatar {
  background: none;
  padding: 0;
  overflow: hidden;
}

.ln-highlight-card-icon--avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
}

.ln-highlight-card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 6px;
}

.ln-highlight-card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* ---------------------------------------------------------------
 * AIRE AI 區塊 — 深邃夜藍漸層，與 PWA 底色明顯區分
 * --------------------------------------------------------------- */
.ln-aire {
  padding: 100px 24px;
  background: linear-gradient(160deg, #060d1a 0%, #0a1520 50%, #071212 100%);
  position: relative;
  overflow: hidden;
}

/* AIRE 區塊 bg 寫死深色，標題／描述需強制白字，不跟隨 theme 變化 */
.ln-aire .ln-section-title {
  color: #ffffff;
}
.ln-aire .ln-section-desc {
  color: rgba(255, 255, 255, 0.72);
}

/* 左側暈光 */
.ln-aire::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    rgba(255, 107, 107, 0.09) 0%,
    transparent 68%
  );
  pointer-events: none;
}

/* 底部暈光 */
.ln-aire::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 400px;
  height: 400px;
  background: radial-gradient(
    circle,
    rgba(64, 120, 200, 0.06) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.ln-aire-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
}

.ln-aire-visual {
  display: flex;
  justify-content: center;
}

.ln-aire-avatar-wrap {
  position: relative;
  width: 200px;
  height: 200px;
}

.ln-aire-avatar {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--color-primary);
  box-shadow: 0 0 60px rgba(255, 107, 107, 0.25);
}

.ln-aire-ring {
  position: absolute;
  inset: -12px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 107, 107, 0.2);
  animation: aireRing 3s ease-in-out infinite;
}

.ln-aire-ring-2 {
  inset: -24px;
  border-color: rgba(255, 107, 107, 0.1);
  animation-delay: 0.5s;
}

@keyframes aireRing {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.04);
    opacity: 1;
  }
}

.ln-aire-msg {
  position: absolute;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 8px 12px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.85);
  white-space: nowrap;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.ln-aire-msg--1 {
  top: -10px;
  right: -60px;
  animation: floatBadge 4s ease-in-out infinite;
}

.ln-aire-msg--2 {
  bottom: 10px;
  left: -60px;
  animation: floatBadge 4s ease-in-out infinite 2s;
}

.ln-aire-features {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ln-aire-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.ln-aire-feature-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(255, 107, 107, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.ln-aire-feature-icon .material-symbols-rounded {
  font-size: 18px;
  color: var(--color-primary);
}

.ln-aire-feature-body h4 {
  font-size: 14px;
  font-weight: 600;
  color: #ffffff;
  margin: 0 0 3px;
}

.ln-aire-feature-body p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
  line-height: 1.5;
}

/* ---------------------------------------------------------------
 * Stats 數字
 * --------------------------------------------------------------- */
.ln-stats {
  padding: 80px 24px;
}

.ln-stats-inner {
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  text-align: center;
}

.ln-stat-number {
  font-size: 48px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 8px;
}

.ln-stat-label {
  font-size: 15px;
  color: var(--text-secondary);
}

.ln-stat-divider {
  width: 1px;
  background: var(--border-color);
}

/* ---------------------------------------------------------------
 * PWA / 安裝區塊 — 深底色 + 細格線，科技感，與 AIRE 明顯區分
 * --------------------------------------------------------------- */
.ln-install {
  padding: 100px 24px;
  background-color: var(--bg-base);
  background-image:
    linear-gradient(rgba(255, 107, 107, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 107, 107, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  position: relative;
}

/* 頂部邊界暈光強化區分感 */
.ln-install::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 107, 107, 0.3),
    transparent
  );
}

.ln-install-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
}

.ln-install-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 32px;
}

.ln-install-step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.ln-install-step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 107, 107, 0.12);
  border: 1.5px solid var(--color-primary);
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.ln-install-step-body h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 4px;
}

.ln-install-step-body p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.5;
}

.ln-install-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
}

.ln-install-device {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.ln-install-icon {
  width: 80px;
  height: 80px;
  border-radius: 22px;
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-primary-dark) 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 40px rgba(255, 107, 107, 0.3);
}

.ln-install-icon .logo-circles-sm {
  scale: 1.5;
}

.ln-install-device-label {
  font-size: 12px;
  color: var(--text-tertiary);
}

.ln-install-arrow {
  font-size: 28px;
  color: var(--text-tertiary);
  margin-top: -20px;
}

/* ---------------------------------------------------------------
 * 手機主畫面 Mockup（PWA 安裝示意）
 * --------------------------------------------------------------- */
.phone-home-wrap {
  display: flex;
  justify-content: center;
  position: relative;
}

.phone-home {
  width: 260px;
  height: 520px;
  border-radius: 40px;
  border: 1.5px solid rgba(255, 255, 255, 0.1);
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.6),
    inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  overflow: hidden;
  position: relative;
  background: linear-gradient(160deg, #1a1040 0%, #0a1a2e 50%, #0d2020 100%);
}

/* 動態桌布光點 */
.phone-home-wallpaper {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      ellipse at 70% 20%,
      rgba(100, 80, 200, 0.3) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse at 20% 70%,
      rgba(40, 120, 180, 0.2) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse at 50% 50%,
      rgba(255, 107, 107, 0.08) 0%,
      transparent 60%
    );
  pointer-events: none;
}

/* 狀態列 */
.phone-status-bar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px 6px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
}

.phone-status-icons {
  display: flex;
  align-items: center;
  gap: 5px;
}

.phone-signal {
  display: flex;
  align-items: flex-end;
  gap: 1.5px;
  height: 12px;
}

.phone-signal span {
  width: 2.5px;
  background: #fff;
  border-radius: 1px;
  display: block;
}

.phone-signal span:nth-child(1) {
  height: 4px;
}
.phone-signal span:nth-child(2) {
  height: 6px;
}
.phone-signal span:nth-child(3) {
  height: 8px;
}
.phone-signal span:nth-child(4) {
  height: 10px;
}

.phone-wifi {
  width: 14px;
  height: 10px;
  position: relative;
}

.phone-wifi::before,
.phone-wifi::after,
.phone-wifi-dot {
  position: absolute;
  border: 2px solid #fff;
  border-radius: 50%;
  border-bottom-color: transparent;
  border-left-color: transparent;
  left: 50%;
  transform: translateX(-50%);
}

.phone-battery {
  width: 20px;
  height: 11px;
  border: 1.5px solid rgba(255, 255, 255, 0.8);
  border-radius: 3px;
  position: relative;
}

.phone-battery::before {
  content: "";
  position: absolute;
  right: -4px;
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
  height: 5px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 0 1px 1px 0;
}

.phone-battery::after {
  content: "";
  position: absolute;
  inset: 2px;
  right: 4px;
  background: #fff;
  border-radius: 1px;
}

/* notch */
.phone-home-notch {
  width: 80px;
  height: 22px;
  background: #000;
  border-radius: 0 0 14px 14px;
  margin: 0 auto;
  position: relative;
  z-index: 3;
  margin-top: -8px;
}

/* App 格線 */
.phone-app-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 14px 14px 6px;
}

/* App 圖示 */
.app-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: default;
}

.app-icon-img {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.app-icon:hover .app-icon-img {
  transform: scale(0.92);
}

.app-icon-label {
  font-size: 9px;
  color: rgba(255, 255, 255, 0.85);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 54px;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
}

/* 各 App 顏色 */
.app-icon-img--photos {
  background: linear-gradient(135deg, #f5a623, #f760a0);
}
.app-icon-img--maps {
  background: linear-gradient(135deg, #4cd964, #007aff);
}
.app-icon-img--safari {
  background: linear-gradient(135deg, #007aff, #00c6ff);
}
.app-icon-img--mail {
  background: linear-gradient(135deg, #007aff, #5ac8fa);
}
.app-icon-img--message {
  background: linear-gradient(135deg, #4cd964, #30d158);
}
.app-icon-img--cal {
  background: linear-gradient(135deg, #ff3b30, #ff6b6b);
}
.app-icon-img--music {
  background: linear-gradient(135deg, #ff2d55, #ff6b6b);
}
.app-icon-img--setting {
  background: linear-gradient(135deg, #8e8e93, #636366);
}
.app-icon-img--camera {
  background: linear-gradient(135deg, #1c1c1e, #3a3a3c);
}
.app-icon-img--ig {
  background: linear-gradient(135deg, #833ab4, #fd1d1d, #fcb045);
}
.app-icon-img--line {
  background: linear-gradient(135deg, #06c755, #00a04a);
}

/* QUAN 特別樣式 */
.app-icon-img--quan {
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-dark)
  );
  box-shadow:
    0 0 20px rgba(255, 107, 107, 0.5),
    0 0 40px rgba(255, 107, 107, 0.2);
  animation: quanGlow 2.5s ease-in-out infinite;
}

@keyframes quanGlow {
  0%,
  100% {
    box-shadow:
      0 0 16px rgba(255, 107, 107, 0.4),
      0 0 32px rgba(255, 107, 107, 0.15);
  }
  50% {
    box-shadow:
      0 0 28px rgba(255, 107, 107, 0.7),
      0 0 56px rgba(255, 107, 107, 0.3);
  }
}

.app-icon-img--quan .phone-quan-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.phone-quan-circles {
  position: relative;
  width: 28px;
  height: 18px;
}

.phone-quan-circles span {
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(10, 10, 10, 0.8);
  border-radius: 50%;
  top: 1px;
}

.phone-quan-circles span:first-child {
  left: 0;
}
.phone-quan-circles span:last-child {
  right: 0;
}

/* 底部 Dock */
.phone-dock {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 3;
}

.phone-dock-inner {
  margin: 0 12px 8px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 22px;
  padding: 10px 14px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

/* 「加入主畫面」提示底部條 */
.phone-add-sheet {
  position: absolute;
  bottom: 90px;
  left: 10px;
  right: 10px;
  z-index: 5;
  background: rgba(30, 30, 40, 0.96);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: sheetSlide 0.5s ease 1s both;
}

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

.add-sheet-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-dark)
  );
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.add-sheet-text {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.add-sheet-text strong {
  font-size: 11px;
  font-weight: 600;
  color: #fff;
}

.add-sheet-text span {
  font-size: 9px;
  color: rgba(255, 255, 255, 0.5);
}

.add-sheet-btn {
  background: #007aff;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

/* ---------------------------------------------------------------
 * Undraw 插圖 Showcase（人物感）
 * --------------------------------------------------------------- */
.ln-showcase {
  padding: 100px 24px;
  background: var(--bg-base);
}

.ln-showcase-inner {
  max-width: 1080px;
  margin: 0 auto;
}

.ln-showcase-header {
  text-align: center;
  margin-bottom: 56px;
}

.ln-showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.ln-showcase-card {
  background: var(--bg-card);
  border: 1.5px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  overflow: hidden;
  transition:
    transform 0.25s ease,
    border-color 0.25s ease,
    box-shadow 0.25s ease;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.ln-showcase-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 107, 107, 0.5);
  box-shadow: 0 12px 40px rgba(255, 107, 107, 0.1);
}

.ln-showcase-img-wrap {
  background: linear-gradient(160deg, #111a28 0%, #0d1f1e 100%);
  height: 220px;
  overflow: hidden;
  position: relative; /* 讓 img 用 absolute 定位 */
}

/* 用 absolute + bottom:0 錨定底部，overflow:hidden 負責裁切
   解決 undraw SVG 有自身 intrinsic 尺寸導致 flex 版型失效的問題 */
.ln-showcase-img {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  height: 200px; /* 固定高度 */
  width: auto; /* 等比縮放寬度 */
  display: block;
}

.ln-showcase-body {
  padding: 20px 20px 24px;
}

.ln-showcase-body h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px;
  line-height: 1.4;
}

.ln-showcase-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* ---------------------------------------------------------------
 * Parallax 宣言區塊
 * --------------------------------------------------------------- */
.ln-parallax {
  position: relative;
  overflow: hidden;
  padding: 120px 24px;
  text-align: center;
  isolation: isolate;
}

.ln-parallax-bg {
  position: absolute;
  inset: -30%;
  background:
    radial-gradient(
      ellipse at 30% 40%,
      rgba(100, 80, 200, 0.18) 0%,
      transparent 55%
    ),
    radial-gradient(
      ellipse at 70% 60%,
      rgba(255, 107, 107, 0.12) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse at 50% 50%,
      rgba(40, 100, 160, 0.15) 0%,
      transparent 60%
    );
  background-color: #05080f;
  will-change: transform;
  z-index: -1;
  pointer-events: none;
}

/* 星點裝飾 */
.ln-parallax-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(
      1px 1px at 20% 30%,
      rgba(255, 255, 255, 0.4) 0%,
      transparent 100%
    ),
    radial-gradient(
      1px 1px at 80% 15%,
      rgba(255, 255, 255, 0.3) 0%,
      transparent 100%
    ),
    radial-gradient(
      1.5px 1.5px at 50% 70%,
      rgba(255, 255, 255, 0.3) 0%,
      transparent 100%
    ),
    radial-gradient(
      1px 1px at 10% 80%,
      rgba(255, 255, 255, 0.2) 0%,
      transparent 100%
    ),
    radial-gradient(
      1px 1px at 90% 60%,
      rgba(255, 255, 255, 0.25) 0%,
      transparent 100%
    ),
    radial-gradient(
      1.5px 1.5px at 35% 15%,
      rgba(255, 255, 255, 0.2) 0%,
      transparent 100%
    ),
    radial-gradient(
      1px 1px at 65% 85%,
      rgba(255, 255, 255, 0.15) 0%,
      transparent 100%
    );
}

.ln-parallax-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 0 auto;
}

.ln-parallax-quote {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.6;
  color: #ffffff;
  margin: 0 0 24px;
  font-style: normal;
  letter-spacing: 0.5px;
}

.ln-parallax-source {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 2px;
  margin: 0 0 40px;
}

/* ---------------------------------------------------------------
 * CTA 最終呼籲
 * --------------------------------------------------------------- */
.ln-cta {
  padding: 120px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.ln-cta::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(
    circle,
    rgba(255, 107, 107, 0.06) 0%,
    transparent 65%
  );
  pointer-events: none;
}

.ln-cta-inner {
  position: relative;
  z-index: 1;
  max-width: 580px;
  margin: 0 auto;
}

.ln-cta-title {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.25;
  margin: 0 0 16px;
  background: linear-gradient(
    135deg,
    var(--text-primary) 40%,
    var(--color-primary) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.ln-cta-sub {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0 0 40px;
}

.ln-cta-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.ln-cta-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ---------------------------------------------------------------
 * Footer
 * --------------------------------------------------------------- */
.ln-footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border-color);
}

.ln-footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.ln-footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ln-footer-links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.ln-footer-links a {
  font-size: 13px;
  color: var(--text-tertiary);
}

.ln-footer-links a:hover {
  color: var(--color-primary);
}

.ln-footer-copy {
  font-size: 13px;
  color: var(--text-tertiary);
  margin: 0;
}

/* ---------------------------------------------------------------
 * 響應式
 * --------------------------------------------------------------- */
@media (max-width: 768px) {
  .ln-showcase-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .ln-showcase-img-wrap {
    height: 160px;
  }
  .ln-parallax-quote {
    font-size: 20px;
  }
  .ln-parallax {
    padding: 80px 24px;
  }
  .ln-hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .ln-hero-title {
    font-size: 32px;
  }
  .ln-hero-sub {
    font-size: 15px;
  }

  .ln-hero-actions {
    justify-content: center;
  }
  .ln-hero-pills {
    justify-content: center;
  }

  .ln-hero-visual {
    order: -1;
  }

  .phone-mockup {
    width: 240px;
  }

  .mock-float-badge--lock {
    left: -20px;
  }
  .mock-float-badge--members {
    right: -20px;
    display: none;
  }

  .ln-feature-row {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 60px 24px;
  }

  .ln-feature-row--reverse .ln-feature-visual {
    order: 0;
  }
  .ln-feature-row--reverse .ln-feature-text {
    order: 0;
  }

  .ln-feature-title {
    font-size: 22px;
  }
  .ln-section-title {
    font-size: 26px;
  }

  .ln-highlights-grid {
    grid-template-columns: 1fr 1fr;
  }

  .ln-aire-inner {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .ln-aire-msg--1 {
    right: -20px;
  }
  .ln-aire-msg--2 {
    left: -20px;
  }

  .ln-stats-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .ln-stat-divider {
    display: none;
  }

  .ln-install-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .ln-cta-title {
    font-size: 30px;
  }

  .ln-footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .ln-nav-inner {
    padding: max(12px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) 12px max(16px, env(safe-area-inset-left));
  }
}

@media (max-width: 480px) {
  .ln-hero-title {
    font-size: 26px;
  }
  .ln-highlights-grid {
    grid-template-columns: 1fr;
  }
  .ln-nav-cta .btn-ghost {
    display: none;
  }
  .ln-feat-illustration {
    width: 220px;
    height: 220px;
  }
  .ln-lang-btn {
    padding: 5px 8px;
    font-size: 11px;
  }
  .phone-home {
    width: 220px;
    height: 440px;
  }
  .app-icon-img {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    font-size: 18px;
  }
}

/* ===== 回憶典藏（feature 6）插圖 ===== */
.ill-archive {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
}
.ill-archive-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
}
.ill-archive-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}
.ill-archive-sub {
    font-size: 11px;
    color: var(--text-tertiary);
    margin-top: 2px;
}
.ill-archive-items {
    padding: 6px 0;
}
.ill-archive-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    font-size: 13px;
    color: var(--text-primary);
}
.ill-archive-item .ill-shadow {
    font-size: 10px;
    opacity: 0.7;
}
.ill-archive-item .ill-count {
    margin-left: auto;
    font-size: 11px;
    color: var(--text-tertiary);
}
.ill-archive-footer {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-elevated);
}

/* ===================================================
   三種圈 Circle Types Section
   =================================================== */
.ln-circle-types {
    padding: 100px 24px;
    background: var(--bg-base);
}
.ln-ct-inner {
    max-width: 1080px;
    margin: 0 auto;
}
.ln-ct-header {
    text-align: center;
    margin-bottom: 60px;
}
.ln-ct-header .ln-section-desc {
    margin: 0 auto;
    max-width: 480px;
}
.ln-ct-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: stretch;
}
.ln-ct-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 28px 24px 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.ln-ct-card:hover {
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
}
.ln-ct-card--flash {
    border-color: rgba(255, 193, 7, 0.3);
}
.ln-ct-card--flash:hover {
    border-color: rgba(255, 193, 7, 0.6);
    box-shadow: 0 8px 32px rgba(255, 193, 7, 0.12);
}
.ln-ct-card--support {
    border-color: rgba(255, 107, 107, 0.3);
}
.ln-ct-card--support:hover {
    border-color: rgba(255, 107, 107, 0.6);
    box-shadow: 0 8px 32px rgba(255, 107, 107, 0.12);
}
.ln-ct-card-top {
    display: flex;
    align-items: center;
    gap: 12px;
}
.ln-ct-card-icon {
    font-size: 32px;
    line-height: 1;
}
.ln-ct-badge {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 20px;
}
.ln-ct-badge--normal {
    background: rgba(255,255,255,0.08);
    color: var(--text-secondary);
}
.ln-ct-badge--flash {
    background: rgba(255, 193, 7, 0.15);
    color: #ffc107;
}
.ln-ct-badge--support {
    background: rgba(255, 107, 107, 0.15);
    color: var(--color-primary);
}
.ln-ct-card-title {
    font-size: 22px;
    font-weight: 800;
    margin: 0;
    color: var(--text-primary);
}
.ln-ct-card-desc {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}
.ln-ct-card-points {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.ln-ct-card-points li {
    font-size: 13px;
    color: var(--text-secondary);
    padding-left: 18px;
    position: relative;
}
.ln-ct-card-points li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}
.ln-ct-usecases {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 4px;
    border-top: 1px solid var(--border-color);
}
.ln-ct-usecase {
    font-size: 12px;
    color: var(--text-secondary);
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 4px 10px;
}

/* ===================================================
   客服圈詳細介紹 Support Detail Section
   =================================================== */
.ln-support-detail {
    padding: 100px 24px;
    background: var(--bg-elevated);
}
.ln-sd-inner {
    max-width: 1080px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 64px;
}
.ln-sd-header {
    max-width: 600px;
}
.ln-sd-header .ln-section-title br {
    display: block;
}

/* 運作流程 */
.ln-sd-flow {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}
.ln-sd-flow-step {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.ln-sd-flow-num {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    font-size: 18px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.ln-sd-flow-body h4 {
    font-size: 16px;
    font-weight: 700;
    margin: 0 0 6px;
    color: var(--text-primary);
}
.ln-sd-flow-body p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0;
}
.ln-sd-flow-arrow {
    flex-shrink: 0;
    margin-top: 10px;
    color: var(--text-tertiary);
}
.ln-sd-flow-arrow .material-symbols-rounded {
    font-size: 24px;
}

/* 適合族群標題 */
.ln-sd-personas-header {
    text-align: center;
}
.ln-sd-personas-title {
    font-size: 28px;
    font-weight: 800;
    margin: 0;
    color: var(--text-primary);
}

/* 適合族群卡片 */
.ln-sd-personas {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.ln-sd-persona {
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: border-color 0.2s, transform 0.2s;
}
.ln-sd-persona:hover {
    border-color: var(--color-primary);
    transform: translateY(-3px);
}
.ln-sd-persona-emoji {
    font-size: 28px;
    line-height: 1;
}
.ln-sd-persona-body h4 {
    font-size: 15px;
    font-weight: 700;
    margin: 0 0 8px;
    color: var(--text-primary);
}
.ln-sd-persona-body p {
    font-size: 13px;
    line-height: 1.65;
    color: var(--text-secondary);
    margin: 0;
}

/* 核心亮點 */
.ln-sd-highlights {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.ln-sd-highlight {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 24px;
    background: var(--bg-base);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}
.ln-sd-highlight .material-symbols-rounded {
    font-size: 28px;
    color: var(--color-primary);
}
.ln-sd-highlight h4 {
    font-size: 14px;
    font-weight: 700;
    margin: 0;
    color: var(--text-primary);
}
.ln-sd-highlight p {
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0;
}

/* ===== RWD ===== */
@media (max-width: 900px) {
    .ln-ct-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }
    .ln-sd-flow {
        flex-direction: column;
        max-width: 480px;
    }
    .ln-sd-flow-arrow {
        transform: rotate(90deg);
        margin: 0;
    }
    .ln-sd-personas {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }
    .ln-sd-highlights {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 600px) {
    .ln-circle-types,
    .ln-support-detail {
        padding: 64px 20px;
    }
    .ln-sd-inner {
        gap: 48px;
    }
    .ln-sd-highlights {
        grid-template-columns: 1fr;
    }
    .ln-sd-personas-title {
        font-size: 22px;
    }
}