/* ============================================
   言聊 Official Website
   Style: 简约大气艳丽 - Deep color scheme
   ============================================ */

/* --- Reset & Variables --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --primary: #6366F1;
  --primary-light: #818CF8;
  --primary-dark: #4F46E5;
  --primary-50: #EEF2FF;
  --primary-100: #E0E7FF;

  --rose: #F43F5E;
  --violet: #8B5CF6;
  --blue: #3B82F6;
  --emerald: #10B981;
  --amber: #F59E0B;
  --pink: #EC4899;

  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1E293B;
  --gray-900: #0F172A;

  --dark-bg: #0C0A1D;
  --dark-navy: #0F172A;
  --deep-indigo: #1E1B4B;
  --mid-indigo: #312E81;

  --white: #FFFFFF;

  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'PingFang SC', 'Helvetica Neue', 'Microsoft YaHei', sans-serif;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.1);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--gray-800);
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }

/* --- Section Tags --- */
.section-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  border-radius: 100px;
  background: var(--primary-50);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
}
.section-tag--primary {
  background: var(--primary);
  color: var(--white);
}

.section-title {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1.5px;
  color: var(--gray-900);
}
.section-title--light { color: var(--white); }

.section-desc {
  font-size: 18px;
  color: var(--gray-500);
  line-height: 1.7;
  max-width: 520px;
}
.section-desc--muted { color: var(--gray-400); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font);
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(0.98); }

.btn--white {
  background: var(--white);
  color: var(--dark-navy);
  padding: 16px 32px;
  border-radius: var(--radius-md);
  font-size: 15px;
}

.btn--store {
  background: var(--white);
  color: var(--dark-navy);
  padding: 18px 36px;
  border-radius: var(--radius-md);
  font-size: 15px;
}

.btn--store-outline {
  background: rgba(255,255,255,0.12);
  color: var(--white);
  padding: 18px 36px;
  border-radius: var(--radius-md);
  font-size: 15px;
  border: 1px solid rgba(255,255,255,0.25);
}
.btn--store-outline:hover {
  background: rgba(255,255,255,0.2);
}

.btn__text-group {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.2;
}
.btn__text-group small {
  font-size: 10px;
  font-weight: 400;
  opacity: 0.7;
}
.btn__text-group strong {
  font-size: 16px;
  font-weight: 700;
}
.btn__text-group--light small { color: rgba(255,255,255,0.7); }
.btn__text-group--light strong { color: var(--white); }

/* --- Animations --- */
[data-animate] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse-green {
  0%, 100% { box-shadow: 0 0 0 3px rgba(16,185,129,0.2); }
  50% { box-shadow: 0 0 0 6px rgba(16,185,129,0.08); }
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--dark-bg);
  transition: all 0.3s;
}
.header--scrolled {
  box-shadow: 0 1px 20px rgba(0,0,0,0.3);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 80px;
  max-width: 1440px;
  margin: 0 auto;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav__logo-img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}
.nav__logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--white);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav__link {
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: #A5B4FC;
  transition: all 0.2s;
}
.nav__link:hover,
.nav__link--active {
  color: var(--white);
  background: rgba(255,255,255,0.08);
}

.nav__download {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--dark-navy);
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s;
}
.nav__download:hover {
  background: #F1F5F9;
  transform: translateY(-1px);
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ============================================
   MOBILE MENU OVERLAY
   ============================================ */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  background: var(--dark-bg);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.mobile-menu.is-open {
  transform: translateX(0);
}

.mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  padding: 0 20px;
}
.mobile-menu__logo {
  display: flex;
  align-items: center;
  gap: 8px;
}
.mobile-menu__logo img {
  width: 28px;
  height: 28px;
  border-radius: 8px;
}
.mobile-menu__logo span {
  font-size: 17px;
  font-weight: 800;
  color: var(--white);
}
.mobile-menu__close {
  background: none;
  border: none;
  color: var(--white);
  cursor: pointer;
  padding: 4px;
}

.mobile-menu__body {
  flex: 1;
  padding: 40px 24px;
  display: flex;
  flex-direction: column;
}

.mobile-menu__links {
  display: flex;
  flex-direction: column;
}
.mobile-menu__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  font-size: 17px;
  font-weight: 600;
  color: #A5B4FC;
  transition: color 0.2s;
}
.mobile-menu__link--active {
  color: var(--white);
}
.mobile-menu__link--active svg { color: var(--primary); }
.mobile-menu__link:not(.mobile-menu__link--active) svg { color: rgba(255,255,255,0.12); }
.mobile-menu__link--last { border-bottom: none; }

.mobile-menu__bottom {
  padding: 0 24px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.mobile-menu__download {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 16px 0;
  border-radius: 14px;
  background: var(--white);
  color: var(--dark-navy);
  font-size: 16px;
  font-weight: 700;
}
.mobile-menu__info {
  display: flex;
  gap: 20px;
}
.mobile-menu__info a {
  font-size: 12px;
  color: var(--gray-500);
}
.mobile-menu__copy {
  font-size: 11px;
  color: var(--gray-600);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  background: linear-gradient(160deg, var(--dark-bg) 0%, var(--deep-indigo) 50%, var(--mid-indigo) 100%);
  overflow: hidden;
  padding-top: 72px;
}

.hero__container {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 60px;
  max-width: 1440px;
  margin: 0 auto;
  padding: 40px 120px;
  width: 100%;
  min-height: 580px;
}

.hero__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 22px;
  justify-content: center;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px 8px 12px;
  border-radius: 100px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: #C7D2FE;
  font-size: 14px;
  font-weight: 500;
  width: fit-content;
}
.hero__eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #34D399;
  box-shadow: 0 0 0 3px rgba(52,211,153,0.2);
  animation: pulse-green 2s ease-in-out infinite;
}

.hero__title {
  font-size: 64px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -2.5px;
  color: var(--white);
}
.hero__title--accent {
  background: linear-gradient(135deg, #A5B4FC 0%, #F9A8D4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__desc {
  font-size: 18px;
  line-height: 1.75;
  color: #A5B4FC;
  max-width: 460px;
}

.hero__actions {
  display: flex;
  gap: 14px;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: 28px;
}
.hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero__stat-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.5px;
}
.hero__stat-label {
  font-size: 13px;
  color: #A5B4FC;
  font-weight: 500;
}
.hero__stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.12);
}

/* Hero Visual */
.hero__visual {
  position: relative;
  flex-shrink: 0;
  width: 420px;
  height: 480px;
}

.hero__phone-glow {
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,0.3) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.hero__phone {
  position: absolute;
  width: 240px;
  height: 480px;
  left: 70px;
  top: 0;
  border-radius: 44px;
  background: var(--dark-navy);
  padding: 10px;
  box-shadow: 0 32px 80px rgba(99,102,241,0.15), 0 8px 24px rgba(0,0,0,0.1);
}
.hero__phone-notch {
  position: absolute;
  z-index: 3;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 28px;
  border-radius: 14px;
  background: var(--dark-navy);
}
.hero__phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 36px;
  object-fit: cover;
  transition: opacity 0.4s ease;
}

/* Floating cards */
.hero__float {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  font-size: 13px;
  font-weight: 600;
  color: var(--white);
  z-index: 5;
  animation: float 5s ease-in-out infinite;
}
.hero__float--match {
  left: 0;
  top: 120px;
}
.hero__float--online {
  right: 0;
  top: 400px;
}
.hero__float-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--emerald);
}

/* ============================================
   FEATURES SECTION
   ============================================ */
.features {
  padding: 72px 0;
  background: linear-gradient(180deg, #FAF5FF 0%, var(--primary-50) 100%);
}

.features__container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 120px;
}

.features__header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  margin-bottom: 48px;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card {
  padding: 36px 32px;
  border-radius: var(--radius-xl);
  background: var(--white);
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.feature-card--blue  { border-top: 3px solid var(--blue); }
.feature-card--violet { border-top: 3px solid var(--violet); }
.feature-card--rose  { border-top: 3px solid var(--rose); }
.feature-card--amber { border-top: 3px solid var(--amber); }

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.feature-card__icon {
  width: 68px;
  height: 68px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature-card__icon--blue { background: #EFF6FF; color: var(--blue); }
.feature-card__icon--violet { background: #F5F3FF; color: var(--violet); }
.feature-card__icon--rose { background: #FFF1F2; color: var(--rose); }
.feature-card__icon--amber { background: #FFFBEB; color: var(--amber); }

.feature-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-900);
}

.feature-card__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray-500);
}

/* ============================================
   SHOWCASE SECTION
   ============================================ */
.showcase {
  padding: 72px 0;
  background: var(--dark-navy);
  overflow: hidden;
}

.showcase__container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 120px;
}

.showcase__header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  margin-bottom: 48px;
}

.showcase__phones {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-bottom: 48px;
}

.showcase__phone {
  border-radius: 36px;
  overflow: hidden;
  background: var(--dark-navy);
  padding: 8px;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.showcase__phone img {
  border-radius: 30px;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.showcase__phone--center {
  width: 280px;
  height: 560px;
  border-radius: 44px;
  padding: 10px;
  box-shadow: 0 24px 64px rgba(99,102,241,0.25);
  z-index: 2;
}
.showcase__phone--center img { border-radius: 36px; }
.showcase__phone--side {
  width: 240px;
  height: 480px;
  opacity: 0.85;
}

.showcase__highlights {
  display: flex;
  justify-content: center;
  gap: 36px;
}

.showcase__highlight {
  display: flex;
  align-items: center;
  gap: 14px;
}
.showcase__highlight-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--gray-800);
  border: 1px solid rgba(99,102,241,0.19);
  box-shadow: 0 4px 20px rgba(99,102,241,0.19);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #A5B4FC;
  flex-shrink: 0;
}
.showcase__highlight div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.showcase__highlight strong {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}
.showcase__highlight span {
  font-size: 14px;
  color: var(--gray-400);
}

/* ============================================
   SAFETY SECTION
   ============================================ */
.safety {
  padding: 72px 0;
  background: linear-gradient(135deg, var(--primary-50) 0%, #FAF5FF 100%);
}

.safety__container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 120px;
  display: flex;
  align-items: center;
  gap: 60px;
}

.safety__left {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.safety__list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 8px;
}

.safety__item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.safety__item-check {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary-50);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.safety__item div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.safety__item strong {
  font-size: 16px;
  color: var(--gray-800);
}
.safety__item p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.6;
}

/* Safety Visual */
.safety__right {
  flex-shrink: 0;
  width: 480px;
  height: 480px;
}

.safety__visual {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.safety__shield {
  position: relative;
  z-index: 3;
  width: 150px;
  height: 150px;
  border-radius: 36px;
  background: linear-gradient(180deg, var(--white) 0%, var(--primary-50) 100%);
  box-shadow: 0 16px 56px rgba(99,102,241,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
}

.safety__ring {
  position: absolute;
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.safety__ring--0 {
  width: 460px;
  height: 460px;
  background: rgba(99,102,241,0.02);
  border: 1.5px solid rgba(99,102,241,0.07);
}
.safety__ring--1 {
  width: 400px;
  height: 400px;
  background: rgba(99,102,241,0.03);
  border: 2px solid rgba(99,102,241,0.1);
}
.safety__ring--2 {
  width: 300px;
  height: 300px;
  background: rgba(99,102,241,0.05);
  border: 2px solid rgba(99,102,241,0.14);
}
.safety__ring--3 {
  width: 200px;
  height: 200px;
  background: rgba(99,102,241,0.07);
  border: 2.5px solid rgba(99,102,241,0.19);
}

.safety__badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  background: var(--white);
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
  z-index: 4;
  animation: float 5s ease-in-out infinite;
}
.safety__badge--1 {
  top: 48px; right: 40px;
  box-shadow: 0 10px 40px rgba(16,185,129,0.12);
  animation-delay: 0s;
}
.safety__badge--2 {
  bottom: 100px; left: 10px;
  box-shadow: 0 10px 40px rgba(99,102,241,0.12);
  animation-delay: 1s;
}
.safety__badge--3 {
  bottom: 60px; right: 60px;
  box-shadow: 0 10px 40px rgba(245,158,11,0.12);
  animation-delay: 2s;
}
.safety__badge--4 {
  top: 80px; left: 30px;
  box-shadow: 0 10px 40px rgba(236,72,153,0.12);
  animation-delay: 1.5s;
}
.safety__badge--5 {
  top: 230px; right: -10px;
  box-shadow: 0 10px 40px rgba(59,130,246,0.12);
  animation-delay: 2.5s;
}

/* ============================================
   ARTICLES SECTION
   ============================================ */
.articles {
  padding: 72px 0;
  background: var(--white);
}

.articles__container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 120px;
}

.articles__header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  margin-bottom: 48px;
}

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

.article-card {
  border-radius: 20px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.article-card__thumb {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.article-card__thumb--indigo { background: var(--primary-50); color: rgba(99,102,241,0.3); }
.article-card__thumb--purple { background: #F5F3FF; color: rgba(244,63,94,0.3); }
.article-card__thumb--amber  { background: #FFFBEB; color: rgba(245,158,11,0.3); }

.article-card__body {
  padding: 0 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 18px;
}

.article-card__tags {
  display: flex;
  align-items: center;
  gap: 8px;
}
.article-card__tag {
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
}
.article-card__tag--indigo { background: var(--primary-50); color: var(--primary); }
.article-card__tag--rose { background: #FFF1F2; color: var(--rose); }
.article-card__tag--amber { background: #FFFBEB; color: var(--amber); }

.article-card__date {
  font-size: 12px;
  color: var(--gray-400);
}

.article-card__title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--gray-900);
}

.article-card__excerpt {
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray-500);
}

.article-card__link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  transition: opacity 0.2s;
}
.article-card__link:hover { opacity: 0.8; }

/* ============================================
   BREATHE SECTION
   ============================================ */
.breathe {
  padding: 56px 120px;
  background: var(--white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.breathe__divider {
  width: 48px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--pink) 100%);
}

.breathe__slogan {
  font-size: 28px;
  font-weight: 700;
  color: var(--gray-400);
  letter-spacing: 2px;
  text-align: center;
}

/* ============================================
   DOWNLOAD CTA SECTION
   ============================================ */
.download {
  padding: 72px 0;
  background: linear-gradient(135deg, var(--primary-dark) 0%, #7C3AED 50%, #DB2777 100%);
  text-align: center;
}

.download__container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.download__title {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -1.5px;
  color: var(--white);
}

.download__desc {
  font-size: 20px;
  color: var(--primary-100);
}

.download__social {
  display: flex;
  align-items: center;
  gap: 24px;
}
.download__stars {
  font-size: 18px;
  color: #FCD34D;
  letter-spacing: 2px;
}
.download__rating,
.download__users {
  font-size: 15px;
  font-weight: 600;
  color: rgba(255,255,255,0.8);
}
.download__divider {
  width: 1px;
  height: 20px;
  background: rgba(255,255,255,0.19);
}

.download__buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
}

.download__qr {
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: center;
}
.download__qr-box {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.19);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
}
.download__qr-text {
  font-size: 13px;
  color: var(--primary-100);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--dark-navy);
  border-top: 1px solid var(--gray-800);
}

.footer__container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 120px;
}

.footer__top {
  display: flex;
  justify-content: space-between;
  padding: 40px 0 32px;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.footer__logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer__logo img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}
.footer__logo span {
  font-size: 18px;
  font-weight: 800;
  color: var(--white);
}
.footer__slogan {
  font-size: 14px;
  color: var(--gray-500);
}

.footer__links-group {
  display: flex;
  gap: 72px;
}
.footer__col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.footer__col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--gray-300);
  margin-bottom: 4px;
}
.footer__col a {
  font-size: 14px;
  color: var(--gray-500);
  transition: color 0.2s;
}
.footer__col a:hover { color: var(--gray-300); }

.footer__divider {
  height: 1px;
  background: var(--gray-800);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 13px;
  color: var(--gray-600);
}

/* ============================================
   RESPONSIVE - TABLET (max-width: 1024px)
   ============================================ */
@media (max-width: 1024px) {
  .nav {
    padding: 0 32px;
    height: 56px;
  }
  .nav__menu { display: none; }
  .nav__download { display: none; }
  .nav__hamburger { display: flex; }

  .hero__container {
    flex-direction: column;
    text-align: center;
    padding: 40px 32px 60px;
    gap: 48px;
    min-height: auto;
  }
  .hero__content { align-items: center; }
  .hero__title { font-size: 48px; letter-spacing: -2px; }
  .hero__desc { margin: 0 auto; text-align: center; }
  .hero__stats { justify-content: center; }
  .hero__visual { width: 320px; height: 440px; }
  .hero__phone { width: 220px; height: 440px; left: 50px; }
  .hero__float--match { left: -10px; top: 60px; }
  .hero__float--online { right: -10px; top: 340px; }

  .features__container,
  .showcase__container,
  .articles__container,
  .download__container { padding: 0 32px; }
  .features__grid { grid-template-columns: repeat(2, 1fr); }

  .safety__container {
    flex-direction: column;
    padding: 0 32px;
    gap: 48px;
  }
  .safety__left { align-items: center; text-align: center; }
  .safety__item { text-align: left; }
  .safety__right { width: 360px; height: 360px; }
  .safety__ring--0 { width: 340px; height: 340px; }
  .safety__ring--1 { width: 300px; height: 300px; }
  .safety__ring--2 { width: 230px; height: 230px; }
  .safety__ring--3 { width: 160px; height: 160px; }

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

  .download__container { padding: 0 32px; }
  .download__title { font-size: 36px; }

  .footer__container { padding: 0 32px; }
  .footer__top { flex-direction: column; gap: 40px; }

  .breathe { padding: 48px 32px; }
}

/* ============================================
   RESPONSIVE - MOBILE (max-width: 640px)
   ============================================ */
@media (max-width: 640px) {
  .section-tag { font-size: 11px; padding: 5px 14px; }
  .section-title { font-size: 26px; letter-spacing: -1px; line-height: 1.25; }
  .section-desc { font-size: 14px; }

  .nav {
    height: 56px;
    padding: 0 20px;
  }
  .nav__logo-img { width: 28px; height: 28px; border-radius: 8px; }
  .nav__logo-text { font-size: 17px; }

  /* Hero Mobile */
  .hero { padding-top: 56px; }
  .hero__container {
    padding: 40px 24px 44px;
    gap: 24px;
  }
  .hero__visual { display: none; }
  .hero__title { font-size: 36px; letter-spacing: -1.5px; line-height: 1.2; }
  .hero__eyebrow { font-size: 12px; padding: 6px 14px 6px 10px; gap: 8; }
  .hero__eyebrow-dot { width: 6px; height: 6px; }
  .hero__desc {
    font-size: 15px;
    max-width: 100%;
    text-align: center;
  }
  .hero__actions { gap: 12px; }
  .hero__actions .btn--white {
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 700;
  }
  .hero__stats { gap: 20px; }
  .hero__stat-num { font-size: 18px; }
  .hero__stat-label { font-size: 11px; }
  .hero__stat-divider { height: 28px; }

  /* Features Mobile */
  .features { padding: 48px 0; }
  .features__container { padding: 0 20px; }
  .features__header { gap: 10px; margin-bottom: 28px; }
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .feature-card {
    padding: 24px 18px;
    border-radius: 18px;
    gap: 12px;
  }
  .feature-card__icon { width: 48px; height: 48px; border-radius: 14px; }
  .feature-card__icon svg { width: 24px; height: 24px; }
  .feature-card__title { font-size: 15px; }
  .feature-card__desc { font-size: 12px; line-height: 1.6; }

  /* Showcase Mobile */
  .showcase { padding: 48px 0; }
  .showcase__container { padding: 0 20px; }
  .showcase__header { gap: 10px; margin-bottom: 32px; }
  .showcase__phones { gap: 12px; margin-bottom: 0; }
  .showcase__phone--center {
    width: 140px;
    height: 280px;
    border-radius: 28px;
    padding: 6px;
  }
  .showcase__phone--center img { border-radius: 22px; }
  .showcase__phone--side {
    width: 100px;
    height: 200px;
    border-radius: 20px;
    padding: 4px;
  }
  .showcase__phone--side img { border-radius: 16px; }
  .showcase__highlights { display: none; }

  /* Safety Mobile */
  .safety { padding: 48px 0; }
  .safety__container { padding: 0 20px; gap: 32px; }
  .safety__right { display: none; }
  .safety__list { gap: 16px; }
  .safety__item {
    background: var(--white);
    padding: 16px 18px;
    border-radius: 16px;
    gap: 14px;
  }
  .safety__item strong { font-size: 14px; }
  .safety__item p { font-size: 12px; line-height: 1.5; }

  /* Articles Mobile */
  .articles { padding: 48px 0; }
  .articles__container { padding: 0 20px; }
  .articles__header { gap: 10px; margin-bottom: 24px; }
  .articles__grid { gap: 16px; }

  .article-card {
    display: flex;
    flex-direction: row;
    border-radius: 16px;
    overflow: hidden;
  }
  .article-card__thumb {
    width: 80px;
    min-width: 80px;
    height: auto;
    min-height: 100%;
    border-radius: 12px;
    margin: 14px 0 14px 14px;
  }
  .article-card__thumb svg { width: 36px; height: 36px; }
  .article-card__body {
    padding: 14px;
    margin-top: 0;
    gap: 6px;
  }
  .article-card__title { font-size: 14px; }
  .article-card__excerpt { display: none; }
  .article-card__link { font-size: 12px; }
  .article-card__tag { font-size: 10px; padding: 2px 8px; }
  .article-card__date { font-size: 10px; }

  /* Breathe Mobile */
  .breathe {
    padding: 40px 24px;
  }
  .breathe__slogan { font-size: 20px; letter-spacing: 1px; }

  /* Download CTA Mobile */
  .download { padding: 48px 0; }
  .download__container { padding: 0 24px; gap: 24px; }
  .download__title { font-size: 28px; letter-spacing: -1px; }
  .download__desc { font-size: 15px; }
  .download__social { gap: 16px; flex-wrap: wrap; justify-content: center; }
  .download__stars { font-size: 16px; }
  .download__rating,
  .download__users { font-size: 13px; }
  .download__divider { display: none; }
  .download__buttons { flex-direction: row; }
  .download__buttons .btn--store,
  .download__buttons .btn--store-outline { padding: 14px 28px; }
  .download__buttons .btn__text-group { display: none; }
  .download__qr { display: none; }

  /* Footer Mobile */
  .footer__container { padding: 0 20px; }
  .footer__top {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 28px;
    padding: 32px 0;
  }
  .footer__brand { align-items: center; }
  .footer__logo { justify-content: center; }
  .footer__logo img { width: 24px; height: 24px; border-radius: 6px; }
  .footer__logo span { font-size: 16px; }
  .footer__slogan { font-size: 12px; }
  .footer__links-group {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0;
    justify-content: center;
  }
  .footer__col {
    flex-direction: row;
    gap: 24px;
  }
  .footer__col h4 { display: none; }
  .footer__col a { font-size: 12px; }
  .footer__bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
    padding: 20px 0;
    font-size: 11px;
  }
}