:root {
  --bg: #07090d;
  --bg-2: #0c1118;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-strong: rgba(255, 255, 255, 0.07);
  --border: rgba(212, 175, 55, 0.18);
  --border-soft: rgba(255, 255, 255, 0.08);
  --text: #ece9e0;
  --text-dim: #9aa0ac;
  --gold: #d4af37;
  --gold-2: #f0d27a;
  --gold-deep: #8b6b1f;
  --serif: "Playfair Display", "Noto Serif SC", Georgia, serif;
  --sans: "Manrope", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --display: "Manrope", -apple-system, "PingFang SC", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { width: 100%; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}
/* iOS / Android: remove default tap flash on all interactive elements */
a, button, [role="button"], .btn, .tab, .os-tab, .pc-dot, .pc-arrow, .contact-copy {
  -webkit-tap-highlight-color: transparent;
}
/* allow text selection on account IDs so users can long-press to copy */
.contact-account-id, .official-id, [data-copy] { -webkit-user-select: all; user-select: all; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { max-width: 1240px; margin: 0 auto; padding: 0 28px; }

/* Background atmospherics */
.bg-gradient {
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(1100px 700px at 80% -10%, rgba(212,175,55,0.10), transparent 60%),
    radial-gradient(900px 600px at -10% 30%, rgba(212,175,55,0.06), transparent 60%),
    linear-gradient(180deg, #07090d 0%, #0a0e15 100%);
}
.bg-grain {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.035;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

/* NAV */
.nav {
  position: sticky; top: 0; z-index: 50;
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  background: rgba(7, 9, 13, 0.55);
  border-bottom: 1px solid var(--border-soft);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: inline-flex; align-items: baseline; gap: 12px; }
.brand-text, .logo-text {
  font-family: var(--display); font-weight: 800; font-size: 22px;
  letter-spacing: 2px; color: var(--text);
  display: inline-block; line-height: 1;
}
.brand-accent, .logo-accent {
  background: linear-gradient(135deg, var(--gold-2), var(--gold) 60%, var(--gold-deep));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-weight: 800; font-family: var(--display); letter-spacing: 2px;
}
.logo-text-lg { font-size: clamp(36px, 5vw, 56px); letter-spacing: 4px; }
.logo-text-lg .logo-accent { letter-spacing: 4px; }
.logo-text-xl { font-size: clamp(38px, 4.4vw, 60px); letter-spacing: 3px; vertical-align: baseline; }
.logo-text-xl .logo-accent { letter-spacing: 3px; }
.brand-cn {
  font-family: "Noto Serif SC", serif; font-weight: 700;
  font-size: 18px; letter-spacing: 4px; color: var(--gold-2);
  padding-left: 12px; border-left: 1px solid var(--border);
  line-height: 1;
}
.nav-links { display: flex; gap: 36px; }
.nav-links a { color: var(--text-dim); font-size: 14px; font-weight: 500; transition: color .2s; }
.nav-links a:hover { color: var(--gold-2); }
.nav-cta { display: flex; gap: 12px; }
.nav-dl-btn .nav-dl-short { display: none; }
.nav-dl-btn .nav-dl-full  { display: inline; }
/* swap to short label on mobile */
html[data-os="android"] .nav-dl-short .os-ico-apple { -webkit-mask-image: url(/icons/android.svg); mask-image: url(/icons/android.svg); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 46px; padding: 0 26px; border-radius: 999px;
  font-weight: 600; font-size: 14px; letter-spacing: 0.3px;
  transition: all .25s ease; cursor: pointer; border: 1px solid transparent;
  white-space: nowrap;
}
.btn-ghost {
  background: rgba(255,255,255,0.03); color: var(--text);
  border: 1px solid var(--border-soft);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-2); }
.btn-gold {
  background: linear-gradient(135deg, var(--gold-2), var(--gold) 60%, var(--gold-deep));
  color: #0a0e15;
  box-shadow: 0 10px 30px -10px rgba(212,175,55,0.55), inset 0 1px 0 rgba(255,255,255,0.4);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 14px 36px -10px rgba(212,175,55,0.7), inset 0 1px 0 rgba(255,255,255,0.5); }
.btn-outline {
  background: transparent; color: var(--text);
  border: 1px solid var(--gold);
}
.btn-outline:hover { background: rgba(212,175,55,0.08); }

/* OS icons (Apple / Android) — inherit currentColor */
.os-ico {
  display: inline-block;
  width: 1.15em; height: 1.15em;
  background-color: currentColor;
  -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat;
  -webkit-mask-position: center; mask-position: center;
  -webkit-mask-size: contain; mask-size: contain;
  vertical-align: -3px;
  margin-right: 6px;
  flex-shrink: 0;
}
.os-ico-apple   { -webkit-mask-image: url(/icons/apple.svg);   mask-image: url(/icons/apple.svg); }
.os-ico-android { -webkit-mask-image: url(/icons/android.svg); mask-image: url(/icons/android.svg); }

/* Official account add-friend block (QR code + ID) */
.official-add {
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
  padding: 32px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(212,175,55,0.08), rgba(212,175,55,0.02));
  border: 1px solid rgba(212,175,55,0.25);
}
.official-info .official-eyebrow {
  display: inline-block;
  font-size: 11px; font-weight: 700; letter-spacing: 3px;
  color: var(--gold-2); text-transform: uppercase;
  margin-bottom: 10px;
}
.official-info h4 {
  font-size: 22px; font-weight: 700; color: var(--text);
  margin: 0 0 14px;
}
.official-id {
  display: inline-block;
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  font-size: 22px; font-weight: 800;
  color: var(--gold);
  letter-spacing: 2px;
  padding: 10px 18px;
  background: rgba(212,175,55,0.1);
  border: 1px dashed var(--gold);
  border-radius: 10px;
  margin-bottom: 14px;
  user-select: all;
}
.official-desc {
  font-size: 13px; color: var(--text-dim);
  line-height: 1.7; margin: 0 0 16px; max-width: 460px;
}
.btn-sm { padding: 8px 16px; font-size: 13px; }
.official-qr {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.official-qr img {
  width: 200px; height: 200px;
  object-fit: contain;
  background: white;
  padding: 10px;
  border-radius: 14px;
  border: 1px solid var(--border-soft);
  box-shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
}
.qr-caption {
  font-size: 11px; color: var(--text-dim); letter-spacing: 1px;
}
@media (max-width: 720px) {
  .official-add { grid-template-columns: 1fr; text-align: center; padding: 24px; }
  .official-info .official-desc { margin-left: auto; margin-right: auto; }
  .official-qr img { width: 180px; height: 180px; }
}

/* HERO */
.hero { padding: 80px 0 120px; position: relative; overflow: hidden; }

/* ============================================================
 * 世界杯主题背景装饰（仅 hero 区，金色调，低对比不抢戏）
 * ============================================================ */
.wc-decor { position: absolute; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.hero > .container { position: relative; z-index: 1; }

/* 巨型 2026 描边艺术字 — 左下角,绕开右侧手机 */
.wc-decor-year {
  position: absolute;
  left: -2%; top: 40%;
  font-family: var(--display, "Manrope"); font-weight: 900;
  font-size: clamp(120px, 16vw, 240px); line-height: .85;
  letter-spacing: 4px;
  color: transparent;
  -webkit-text-stroke: 2px rgba(212,175,55,0.32);
          text-stroke: 2px rgba(212,175,55,0.32);
  user-select: none;
  background: linear-gradient(180deg, rgba(252,211,77,0.35) 0%, rgba(212,175,55,0.05) 100%);
  -webkit-background-clip: text; background-clip: text;
  filter: drop-shadow(0 0 32px rgba(212,175,55,.25));
  pointer-events: none;
  z-index: 0;
  transform: rotate(-4deg);
}

/* 球场弧线 SVG 铺底 */
.wc-decor-pitch {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: .8;
  mix-blend-mode: screen;
}

/* 经典黑白足球 — 明显的世界杯标志 */
.wc-ball {
  position: absolute;
  filter: drop-shadow(0 12px 24px rgba(0,0,0,.45)) drop-shadow(0 0 16px rgba(212,175,55,.2));
}
.wc-ball-1 { width: 90px;  height: 90px;  top: 10%;   left: 4%;   opacity: .85; animation: wcSpin 8s linear infinite, wcFloatY 5s ease-in-out infinite; }
.wc-ball-2 { width: 55px;  height: 55px;  top: 55%;   left: 33%;  opacity: .6;  animation: wcSpin 12s linear -3s infinite, wcFloatY 7s ease-in-out -1s infinite; }
.wc-ball-3 { width: 130px; height: 130px; bottom: 6%; left: 1%;   opacity: .75; animation: wcSpin 18s linear -5s infinite, wcFloatY 9s ease-in-out -2s infinite; }
.wc-ball-4 { width: 70px;  height: 70px;  top: 22%;   right: 38%; opacity: .55; animation: wcSpin 10s linear -1s infinite, wcFloatY 6s ease-in-out -3s infinite; }
@keyframes wcSpin   { from { transform: rotate(0); } to { transform: rotate(360deg); } }
@keyframes wcFloatY { 0%,100% { translate: 0 0; } 50% { translate: 0 -24px; } }

/* 踢球运动员线描 — 大尺寸,围绕手机周围露出 */
.wc-player {
  position: absolute;
  top: -40px;
  right: -80px;
  width: clamp(640px, 62vw, 900px);
  height: auto;
  opacity: .7;
  filter: drop-shadow(0 0 32px rgba(252,211,77,.4));
  pointer-events: none;
  z-index: 0;
  animation: wcPlayerPulse 4s ease-in-out infinite alternate;
}
@keyframes wcPlayerPulse {
  from { opacity: .55; filter: drop-shadow(0 0 20px rgba(252,211,77,.3)); }
  to   { opacity: .85; filter: drop-shadow(0 0 44px rgba(252,211,77,.65)); }
}
@media (max-width: 540px) {
  .wc-player { width: 420px; top: -20px; right: -120px; opacity: .4; }
}

/* 大力神杯 — 金色立体 */
.wc-trophy {
  position: absolute; bottom: 8%; right: 6%;
  width: clamp(140px, 18vw, 240px); height: auto;
  opacity: .9;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,.5)) drop-shadow(0 0 24px rgba(252,211,77,.4));
  animation: wcGlow 3s ease-in-out infinite alternate, wcTrFloat 6s ease-in-out infinite;
}
@keyframes wcGlow {
  from { filter: drop-shadow(0 20px 40px rgba(0,0,0,.5)) drop-shadow(0 0 12px rgba(252,211,77,.3)); }
  to   { filter: drop-shadow(0 20px 40px rgba(0,0,0,.5)) drop-shadow(0 0 36px rgba(252,211,77,.8)); }
}
@keyframes wcTrFloat { 0%,100% { translate: 0 0; } 50% { translate: 0 -10px; } }

/* WORLD CUP 飘带 */
.wc-ribbon {
  position: absolute; top: 38%; left: -4%;
  transform: rotate(-12deg);
  padding: 10px 60px;
  background: linear-gradient(90deg, #d4a431 0%, #fcd34d 50%, #d4a431 100%);
  color: #0a0e15;
  font-family: var(--display, "Manrope"); font-weight: 900;
  font-size: 13px; letter-spacing: 6px;
  text-transform: uppercase;
  box-shadow: 0 8px 24px -4px rgba(212,175,55,.45), 0 0 0 1px rgba(0,0,0,.2) inset;
  opacity: .22;
  z-index: 0;
}

/* 球场草坪条纹（底部隐约可见） */
.wc-grass {
  position: absolute; left: 0; right: 0; bottom: 0; height: 120px;
  background:
    repeating-linear-gradient(90deg,
      rgba(34,197,94,0.04) 0,
      rgba(34,197,94,0.04) 60px,
      rgba(34,197,94,0.08) 60px,
      rgba(34,197,94,0.08) 120px);
  -webkit-mask-image: linear-gradient(to top, #000, transparent);
          mask-image: linear-gradient(to top, #000, transparent);
  opacity: .6;
}

/* 金色星星点缀（奖杯星光感） */
.wc-star {
  position: absolute; color: #fcd34d; font-size: 18px;
  text-shadow: 0 0 12px rgba(252,211,77,.8);
  animation: wcTwinkle 2.5s ease-in-out infinite;
}
.wc-star-1 { top: 18%; right: 18%; animation-delay: 0s;   }
.wc-star-2 { top: 50%; right: 5%;  font-size: 12px; animation-delay: .7s; }
.wc-star-3 { top: 72%; right: 22%; font-size: 14px; animation-delay: 1.4s; }
@keyframes wcTwinkle {
  0%, 100% { opacity: .3; transform: scale(.8); }
  50%      { opacity: 1;  transform: scale(1.2); }
}

/* 金色流星划过的轨迹 */
.wc-streak {
  position: absolute; height: 1px; width: 240px;
  background: linear-gradient(90deg, transparent, rgba(252,211,77,.7), transparent);
  filter: blur(.5px);
  transform-origin: left center;
}
.wc-streak-1 { top: 22%; left: -10%; transform: rotate(15deg); animation: wcStreak 8s ease-in-out infinite; }
.wc-streak-2 { top: 70%; left: -10%; transform: rotate(-12deg); animation: wcStreak 11s ease-in-out -4s infinite; }
@keyframes wcStreak {
  0%       { transform: translateX(0)    rotate(15deg); opacity: 0; }
  20%      { opacity: 1; }
  60%      { opacity: 1; }
  100%     { transform: translateX(120vw) rotate(15deg); opacity: 0; }
}

/* 移动端：缩小装饰，避免抢戏 */
@media (max-width: 540px) {
  .wc-decor-year { font-size: 90px; letter-spacing: 2px; top: auto; bottom: 8%; left: 4%; opacity: .6; }
  .wc-ball-1 { width: 54px; height: 54px; opacity: .55; }
  .wc-ball-2, .wc-ball-4 { display: none; }
  .wc-ball-3 { width: 70px; height: 70px; opacity: .4; bottom: 2%; }
  .wc-trophy { width: 110px; bottom: 4%; right: 2%; opacity: .55; }
  .wc-ribbon { font-size: 10px; letter-spacing: 4px; padding: 6px 40px; top: 32%; opacity: .15; }
  .wc-star { display: none; }
  .wc-streak { width: 160px; }
  .wc-grass { height: 80px; }
}

/* 用户偏好"减少动画"时静止 */
@media (prefers-reduced-motion: reduce) {
  .wc-ball, .wc-trophy, .wc-streak { animation: none !important; }
}
.hero-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: start; }
.hero-visual { position: sticky; top: 100px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--gold-2); padding: 8px 14px;
  border: 1px solid var(--border); border-radius: 999px;
  background: rgba(212,175,55,0.05);
}
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 12px var(--gold); }
.hero-title {
  font-family: var(--serif);
  font-size: clamp(44px, 5.2vw, 68px);
  line-height: 1.1; font-weight: 600;
  margin: 28px 0 24px;
  letter-spacing: -0.5px;
}
.gold {
  background: linear-gradient(135deg, var(--gold-2) 0%, var(--gold) 50%, var(--gold-deep) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { color: var(--text-dim); font-size: 18px; max-width: 540px; line-height: 1.75; }
.hero-actions { display: flex; flex-direction: column; gap: 28px; margin: 40px 0 36px; max-width: 560px; }
.dl-group {
  display: flex; flex-direction: column; gap: 10px;
  padding: 22px 22px 20px;
  border-radius: 18px;
  background: rgba(255,255,255,0.015);
  border: 1px solid var(--border-soft);
  position: relative;
}
.dl-group-main { border-color: rgba(212,175,55,0.35); background: linear-gradient(180deg, rgba(212,175,55,0.04), transparent); }
.dl-group-contact {
  border-color: rgba(124,92,255,0.3);
  background: linear-gradient(180deg, rgba(124,92,255,0.05), rgba(59,130,246,0.03));
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px 14px; align-items: stretch;
}
.dl-group-contact > .dl-group-head { grid-column: 1 / -1; }
.dl-group-contact > .dl-row { min-width: 0; }
.dl-group-contact > .dl-row > .dl-card { padding: 12px 14px; gap: 10px; }
.dl-group-contact > .dl-row > .dl-card .dl-icon { width: 38px; height: 38px; flex-shrink: 0; }
.dl-group-contact > .dl-row > .dl-card .dl-text { min-width: 0; flex: 1; }
.dl-group-contact > .dl-row > .dl-card .dl-label { font-size: 13px; white-space: nowrap; }
.dl-group-contact > .dl-row > .dl-card .dl-sub { font-size: 10px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; letter-spacing: 0.3px; }
.dl-group-contact > .dl-row > .dl-card .dl-arrow { font-size: 16px; flex-shrink: 0; }

/* dl-row wrapper: makes tutorial link float on top-right of dl-card */
.dl-row { position: relative; }
.dl-tutorial {
  position: absolute; right: 14px; bottom: 10px;
  font-size: 11px; color: var(--gold-2); letter-spacing: 0.5px;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(212,175,55,0.08); border: 1px solid rgba(212,175,55,0.25);
  transition: all .2s ease; z-index: 2;
}
.dl-tutorial:hover { background: rgba(212,175,55,0.18); border-color: var(--gold); color: var(--gold); }
.dl-group-contact .dl-tutorial { color: #a78bff; background: rgba(124,92,255,0.1); border-color: rgba(124,92,255,0.3); }
.dl-group-contact .dl-tutorial:hover { background: rgba(124,92,255,0.22); border-color: #a78bff; color: #c7b6ff; }
/* keep arrow from overlapping the chip */
.dl-row > .dl-card .dl-arrow { margin-right: 70px; }
.dl-group-contact .dl-row > .dl-card .dl-arrow { margin-right: 64px; }
.dl-group-contact::before {
  content: "🔒 加密 · 私密";
  position: absolute; top: -10px; right: 20px;
  background: linear-gradient(135deg, #7c5cff, #3b82f6);
  color: #fff; font-size: 10px; font-weight: 700;
  padding: 4px 12px; border-radius: 20px; letter-spacing: 1px;
}
.dl-group-head { margin-bottom: 6px; }
.dl-group-eyebrow {
  display: inline-block;
  font-size: 10px; font-weight: 700; letter-spacing: 3px;
  color: var(--gold-2); text-transform: uppercase;
  margin-bottom: 6px;
}
.dl-group-eyebrow.accent { color: #a78bff; }
.dl-group-title { font-size: 17px; font-weight: 700; color: var(--text); margin: 0 0 6px; }
.dl-group-desc { font-size: 12px; color: var(--text-dim); line-height: 1.6; margin: 0; }
.dl-group-desc b { color: var(--gold-2); font-weight: 600; }

.dl-card {
  display: flex; align-items: center; gap: 16px;
  padding: 18px 22px; border-radius: 16px;
  background: var(--panel); border: 1px solid var(--border-soft);
  transition: all .25s ease;
  position: relative; overflow: hidden;
}
.dl-card::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(212,175,55,0.06), transparent);
  transform: translateX(-100%); transition: transform .6s;
}
.dl-card:hover { border-color: var(--gold); background: var(--panel-strong); transform: translateX(4px); }
.dl-card:hover::before { transform: translateX(100%); }
.dl-card-featured {
  border-color: var(--border);
  background: linear-gradient(135deg, rgba(212,175,55,0.08), rgba(212,175,55,0.02));
}
.dl-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: grid; place-items: center; flex-shrink: 0;
  background: rgba(255,255,255,0.04); color: var(--gold-2);
}
.dl-icon svg { width: 26px; height: 26px; }
.dl-icon.safew { padding: 6px; background: rgba(212,175,55,0.1); }
.dl-icon.safew img { width: 100%; height: 100%; border-radius: 8px; object-fit: contain; }
.dl-icon.chats { background: rgba(212,175,55,0.1); color: var(--gold-2); }
.dl-icon.brand-img { padding: 6px; background: #fff; }
.dl-icon.brand-img img { width: 100%; height: 100%; border-radius: 8px; object-fit: contain; display: block; }
.dl-text { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.dl-label { font-size: 16px; font-weight: 600; color: var(--text); }
.dl-sub { font-size: 12px; color: var(--text-dim); letter-spacing: 0.5px; }
.dl-arrow { color: var(--gold); font-size: 20px; transition: transform .25s; }
.dl-card:hover .dl-arrow { transform: translateX(4px); }

.trust-row { display: flex; align-items: center; gap: 24px; padding-top: 24px; border-top: 1px solid var(--border-soft); max-width: 460px; }

/* ===== Hero 内 · QUWIN365 APP 下载优势 ===== */
.advantages { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--border-soft); max-width: 560px; }
.adv-head { margin-bottom: 16px; }
.adv-eyebrow { font-size: 11px; letter-spacing: 2px; color: var(--gold-2); text-transform: uppercase; font-weight: 600; }
.adv-title { font-family: var(--serif); font-size: 22px; font-weight: 600; margin: 6px 0 0; color: var(--text); }
.adv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.adv-item {
  display: grid; grid-template-columns: 36px 1fr; column-gap: 12px; row-gap: 2px;
  padding: 14px 14px; border-radius: 14px;
  background: rgba(255,255,255,0.02); border: 1px solid var(--border-soft);
  transition: all .2s ease;
}
.adv-item:hover { background: rgba(212,175,55,0.04); border-color: rgba(212,175,55,0.25); transform: translateY(-2px); }
.adv-ico {
  grid-row: 1 / 3; width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, rgba(212,175,55,0.18), rgba(212,175,55,0.05));
  border: 1px solid rgba(212,175,55,0.25);
  display: grid; place-items: center; font-size: 16px;
}
.adv-item strong { font-size: 13px; font-weight: 700; color: var(--text); line-height: 1.3; }
.adv-item span { font-size: 11px; color: var(--text-dim); line-height: 1.55; }

/* ===== Section · 官方加密通讯（独立两张大卡） ===== */
.contacts { padding: 100px 0 80px; position: relative; border-top: 1px solid var(--border-soft); }
.contacts::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(800px 400px at 20% 0%, rgba(124,92,255,0.08), transparent 60%),
              radial-gradient(800px 400px at 80% 100%, rgba(59,130,246,0.06), transparent 60%);
}
.contacts-head { text-align: center; max-width: 760px; margin: 0 auto 48px; position: relative; }
.contacts-head .section-eyebrow.accent { color: #a78bff; }
.contacts-head .section-desc b { color: var(--gold-2); font-weight: 600; }
.contacts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; position: relative; }
.contact-card {
  padding: 28px; border-radius: 22px; border: 1px solid var(--border-soft);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  display: flex; flex-direction: column; gap: 18px;
  transition: all .25s ease;
}
.contact-card-safex {
  border-color: rgba(124,92,255,0.35);
  background: linear-gradient(180deg, rgba(124,92,255,0.08), rgba(124,92,255,0.02));
  box-shadow: 0 20px 50px -30px rgba(124,92,255,0.5);
}
.contact-card-safex:hover { border-color: rgba(167,139,255,0.6); transform: translateY(-3px); }
.contact-card-chats {
  border-color: rgba(59,130,246,0.32);
  background: linear-gradient(180deg, rgba(59,130,246,0.08), rgba(59,130,246,0.02));
  box-shadow: 0 20px 50px -30px rgba(59,130,246,0.5);
}
.contact-card-chats:hover { border-color: rgba(96,165,250,0.6); transform: translateY(-3px); }
.contact-card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.contact-brand { display: flex; align-items: center; gap: 14px; }
.contact-brand-img { width: 56px; height: 56px; border-radius: 14px; object-fit: cover; background: #fff; padding: 4px; border: 1px solid var(--border-soft); }
.contact-brand-name { font-size: 18px; font-weight: 700; color: var(--text); }
.contact-brand-tag { font-size: 12px; color: var(--text-dim); margin-top: 2px; }
.contact-badge {
  font-size: 11px; padding: 5px 10px; border-radius: 999px;
  background: rgba(124,92,255,0.18); color: #c7b6ff; border: 1px solid rgba(124,92,255,0.35);
  white-space: nowrap; font-weight: 600;
}
.contact-badge-blue { background: rgba(59,130,246,0.18); color: #93c5fd; border-color: rgba(59,130,246,0.35); }
.contact-desc { font-size: 14px; color: var(--text-dim); line-height: 1.7; margin: 0; }
.contact-desc b { color: var(--text); font-weight: 600; }
.contact-account {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 12px 14px; border-radius: 12px;
  background: rgba(0,0,0,0.3); border: 1px dashed rgba(255,255,255,0.15);
}
.contact-account-label { font-size: 11px; color: var(--text-dim); letter-spacing: 1px; }
.contact-account-id { font-family: var(--display); font-size: 15px; color: var(--text); font-weight: 700; letter-spacing: 0.5px; flex: 1; word-break: break-all; }
.contact-copy {
  font-size: 11px; padding: 6px 12px; border-radius: 999px; cursor: pointer;
  background: rgba(124,92,255,0.2); color: #c7b6ff; border: 1px solid rgba(124,92,255,0.4);
  font-weight: 600; transition: all .2s ease;
}
.contact-copy:hover { background: rgba(124,92,255,0.35); }
.contact-copy-blue { background: rgba(59,130,246,0.2); color: #93c5fd; border-color: rgba(59,130,246,0.4); }
.contact-copy-blue:hover { background: rgba(59,130,246,0.35); }
.contact-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: auto; }
.btn-purple { background: linear-gradient(135deg, #7c5cff, #5b3df0); color: #fff; border: 1px solid rgba(124,92,255,0.6); flex: 1; }
.btn-purple:hover { box-shadow: 0 8px 24px -8px rgba(124,92,255,0.7); transform: translateY(-1px); }
.btn-ghost-purple { background: transparent; color: #c7b6ff; border: 1px solid rgba(124,92,255,0.4); }
.btn-ghost-purple:hover { background: rgba(124,92,255,0.12); border-color: #a78bff; }
.btn-blue { background: linear-gradient(135deg, #3b82f6, #1d4ed8); color: #fff; border: 1px solid rgba(59,130,246,0.6); flex: 1; }
.btn-blue:hover { box-shadow: 0 8px 24px -8px rgba(59,130,246,0.7); transform: translateY(-1px); }
.btn-ghost-blue { background: transparent; color: #93c5fd; border: 1px solid rgba(59,130,246,0.4); }
.btn-ghost-blue:hover { background: rgba(59,130,246,0.12); border-color: #60a5fa; }
.trust-item { display: flex; flex-direction: column; }
.trust-item strong { font-family: var(--serif); font-size: 22px; color: var(--gold-2); font-weight: 600; }
.trust-item span { font-size: 12px; color: var(--text-dim); letter-spacing: 0.5px; }
.divider { width: 1px; height: 32px; background: var(--border-soft); }

/* Hero visual */
.hero-visual { position: relative; display: grid; place-items: center; min-height: 600px; }

/* ===== Phone screenshot carousel ===== */
.phone-carousel {
  position: relative; width: min(360px, 100%); aspect-ratio: 390 / 844;
  border-radius: 38px; overflow: hidden;
  background: #0a0e15;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,0.7), 0 0 0 2px rgba(255,255,255,0.06) inset;
}
.pc-track { position: absolute; inset: 0; display: flex; transition: transform .55s cubic-bezier(.7,.05,.2,1); touch-action: pan-y; }
.pc-track > img {
  flex: 0 0 100%; width: 100%; height: 100%; object-fit: cover; display: block; user-select: none;
}
.pc-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 38px; height: 38px; border-radius: 50%; z-index: 3;
  background: rgba(10,14,21,0.6); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.15); color: #fff;
  font-size: 24px; line-height: 1; cursor: pointer;
  display: grid; place-items: center; transition: all .2s ease;
  opacity: 0; pointer-events: none;
}
.phone-carousel:hover .pc-arrow { opacity: 1; pointer-events: auto; }
.pc-arrow:hover { background: var(--gold); color: #0a0e15; border-color: var(--gold); transform: translateY(-50%) scale(1.08); }
.pc-prev { left: 10px; }
.pc-next { right: 10px; }
.pc-dots {
  position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%); z-index: 3;
  display: flex; gap: 6px; padding: 6px 10px; border-radius: 999px;
  background: rgba(10,14,21,0.55); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.pc-dot {
  width: 6px; height: 6px; border-radius: 50%; cursor: pointer; padding: 0; border: none;
  background: rgba(255,255,255,0.4); transition: all .25s ease;
}
.pc-dot.active { background: var(--gold); width: 18px; border-radius: 3px; }
.pc-caption {
  position: absolute; top: 14px; left: 50%; transform: translateX(-50%); z-index: 3;
  font-size: 11px; padding: 4px 10px; border-radius: 999px;
  background: rgba(10,14,21,0.55); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  color: rgba(255,255,255,0.85); letter-spacing: 1px; font-weight: 500;
  white-space: nowrap;
}
@media (max-width: 540px) {
  .phone-carousel { width: min(260px, 80%); }
  .pc-arrow { opacity: 1; pointer-events: auto; width: 32px; height: 32px; font-size: 20px; }
  .pc-caption { font-size: 10px; padding: 3px 8px; }
}
.phone-glow {
  position: absolute; width: 480px; height: 480px; border-radius: 50%;
  background: radial-gradient(circle, rgba(212,175,55,0.25), transparent 60%);
  filter: blur(40px);
}
.phone-img {
  position: relative; max-height: 620px; width: auto;
  filter: drop-shadow(0 30px 60px rgba(0,0,0,0.5)) drop-shadow(0 0 30px rgba(212,175,55,0.2));
  animation: float 6s ease-in-out infinite;
}
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

.floating-card {
  position: absolute; display: flex; align-items: center; gap: 12px;
  padding: 14px 18px; border-radius: 14px;
  background: rgba(20, 24, 32, 0.85);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  box-shadow: 0 20px 40px -10px rgba(0,0,0,0.5);
}
.card-1 { top: 18%; left: -10px; animation: float 5s ease-in-out infinite; }
.card-2 { bottom: 18%; right: -10px; animation: float 5s ease-in-out -2.5s infinite; }
.fc-dot { width: 8px; height: 8px; border-radius: 50%; background: #4ade80; box-shadow: 0 0 12px #4ade80; }
.fc-icon { width: 28px; height: 28px; border-radius: 8px; background: linear-gradient(135deg, var(--gold-2), var(--gold)); color: #0a0e15; display: grid; place-items: center; font-weight: 700; }
.fc-title { font-size: 13px; font-weight: 600; }
.fc-sub { font-size: 11px; color: var(--text-dim); }

/* Section heads */
.section-head { margin-bottom: 56px; }
.section-head.center { text-align: center; }
.section-eyebrow {
  display: inline-block; font-size: 12px; letter-spacing: 3px; text-transform: uppercase;
  color: var(--gold-2); margin-bottom: 16px; font-weight: 600;
}
.section-title {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(36px, 4.5vw, 56px); line-height: 1.1; letter-spacing: -0.5px;
}
.section-desc { color: var(--text-dim); font-size: 17px; max-width: 620px; margin: 18px auto 0; }

/* FEATURES */
.features { padding: 120px 0; border-top: 1px solid var(--border-soft); }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.feature {
  padding: 36px 28px; border-radius: 20px;
  background: var(--panel); border: 1px solid var(--border-soft);
  transition: all .3s ease;
}
.feature:hover { border-color: var(--gold); transform: translateY(-4px); background: var(--panel-strong); }
.feature-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: linear-gradient(135deg, rgba(212,175,55,0.18), rgba(212,175,55,0.04));
  border: 1px solid var(--border);
  color: var(--gold-2); display: grid; place-items: center;
  font-size: 22px; margin-bottom: 22px;
}
.feature h3 { font-family: var(--serif); font-size: 24px; font-weight: 600; margin-bottom: 10px; }
.feature p { color: var(--text-dim); font-size: 14px; line-height: 1.7; }

/* GUIDE */
.guide { padding: 120px 0; border-top: 1px solid var(--border-soft); }
.tabs { display: flex; gap: 8px; justify-content: center; padding: 6px; background: var(--panel); border: 1px solid var(--border-soft); border-radius: 999px; width: max-content; margin: 0 auto 40px; flex-wrap: wrap; max-width: 100%; }
.tab, .os-tab {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 26px; border-radius: 999px; background: transparent;
  border: none; color: var(--text-dim); font-family: var(--sans);
  font-size: 14px; font-weight: 600; cursor: pointer; transition: all .25s;
  white-space: nowrap;
}
.tab.active, .os-tab.active {
  background: linear-gradient(135deg, var(--gold-2), var(--gold) 60%, var(--gold-deep));
  color: #0a0e15; box-shadow: 0 6px 16px -4px rgba(212,175,55,0.5);
}
.tab-mark {
  width: 24px; height: 24px; border-radius: 6px;
  background: rgba(212,175,55,0.15); border: 1px solid var(--border);
  color: var(--gold-2); font-size: 11px; font-weight: 800;
  display: grid; place-items: center; letter-spacing: 0;
}
.tab.active .tab-mark { background: rgba(0,0,0,0.18); border-color: rgba(0,0,0,0.15); color: #0a0e15; }
.tab-mark-img { padding: 0; background: #fff; border-color: rgba(255,255,255,0.4); overflow: hidden; }
.tab-mark-img img { width: 100%; height: 100%; object-fit: contain; display: block; }
.tab.active .tab-mark-img { background: #fff; border-color: rgba(0,0,0,0.15); }
.tabs-os { background: transparent; border: 1px solid var(--border-soft); margin-bottom: 32px; }

.dl-row {
  display: flex; gap: 14px; justify-content: center; flex-wrap: wrap;
  margin: 0 auto 32px;
}
.dl-row .btn { min-width: 200px; height: 52px; font-size: 15px; }
.app-panel { display: none; }
.app-panel.active { display: block; }
.os-panel { display: none; }
.os-panel.active { display: block; }

.app-intro {
  text-align: center; margin: 8px 0 28px;
}
.app-intro h3 {
  font-family: var(--serif); font-size: 28px; font-weight: 600;
  color: var(--gold-2); margin-bottom: 6px;
}
.app-intro p { color: var(--text-dim); font-size: 15px; }

/* Text-only step cards (for 66CHATS) */
.text-steps {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px; max-width: 980px; margin: 0 auto;
}
.t-step {
  display: flex; gap: 16px; padding: 22px 24px;
  background: var(--panel); border: 1px solid var(--border-soft);
  border-radius: 18px; transition: all .25s;
}
.t-step:hover { border-color: var(--gold); transform: translateY(-3px); }
.t-num {
  flex-shrink: 0; width: 38px; height: 38px; border-radius: 12px;
  background: linear-gradient(135deg, var(--gold-2), var(--gold) 60%, var(--gold-deep));
  color: #0a0e15; font-family: var(--serif); font-weight: 700; font-size: 18px;
  display: grid; place-items: center;
  box-shadow: 0 4px 12px -4px rgba(212,175,55,0.5);
}
.t-step b { display: block; font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.t-step p { font-size: 13px; color: var(--text-dim); line-height: 1.7; }
.t-step em { font-style: normal; color: var(--gold-2); font-weight: 600; }
.steps { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.step {
  background: var(--panel); border: 1px solid var(--border-soft);
  border-radius: 18px; overflow: hidden; transition: all .25s;
}
.step:hover { border-color: var(--gold); transform: translateY(-3px); }
.step img { width: 100%; aspect-ratio: 9 / 16; object-fit: cover; background: #000; }
.os-intro { text-align: center; color: var(--text-dim); font-size: 14px; line-height: 1.7; max-width: 720px; margin: 0 auto 28px; }
.step figcaption { padding: 16px 18px; font-size: 13px; color: var(--text-dim); }
.step figcaption b { display: block; color: var(--gold-2); font-weight: 600; margin-bottom: 4px; font-size: 12px; letter-spacing: 1px; text-transform: uppercase; }

/* SAFEW */
.safew { padding: 120px 0; border-top: 1px solid var(--border-soft); }
.safew-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.safew-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.safew-grid img { aspect-ratio: 1; object-fit: cover; border-radius: 16px; border: 1px solid var(--border-soft); }

/* Showcases for SafeX / 66CHATS */
.showcase { padding: 110px 0; border-top: 1px solid var(--border-soft); }
.showcase-alt { background: linear-gradient(180deg, transparent, rgba(212,175,55,0.03)); }
.showcase-inner { display: grid; grid-template-columns: 1fr 1.1fr; gap: 60px; align-items: center; }
.showcase-inner.reverse > .showcase-copy { order: 2; }
.showcase-inner.reverse > .showcase-grid { order: 1; }
.showcase-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.showcase-grid img {
  width: 100%; aspect-ratio: 9/16; object-fit: cover;
  border-radius: 18px; border: 1px solid var(--border-soft);
  background: #0a0e15; transition: transform .35s ease;
}
.showcase-grid img:nth-child(2) { transform: translateY(-18px); }
.showcase-grid img:hover { transform: translateY(-24px); border-color: var(--gold); }
.feat-list { list-style: none; padding: 0; margin: 20px 0 28px; display: grid; gap: 10px; }
.feat-list li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-dim); }
.feat-dot {
  width: 22px; height: 22px; border-radius: 50%;
  background: rgba(212,175,55,0.15); color: var(--gold-2);
  font-size: 12px; font-weight: 800;
  display: grid; place-items: center; flex-shrink: 0;
}
@media (max-width: 880px) {
  .showcase { padding: 70px 0; }
  .showcase-inner { grid-template-columns: 1fr; gap: 40px; }
  .showcase-inner.reverse > .showcase-copy { order: 1; }
  .showcase-inner.reverse > .showcase-grid { order: 2; }
  .showcase-grid img:nth-child(2) { transform: none; }
}

/* FINAL CTA */
.final-cta { padding: 140px 0; border-top: 1px solid var(--border-soft); position: relative; overflow: hidden; }
.final-cta::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(600px 300px at 50% 50%, rgba(212,175,55,0.12), transparent 70%);
}
.cta-inner { text-align: center; position: relative; }
.cta-inner h2 { font-family: var(--serif); font-size: clamp(36px, 5vw, 60px); font-weight: 600; line-height: 1.15; }
.cta-inner p { color: var(--text-dim); font-size: 18px; margin: 18px 0 36px; }
.cta-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* FOOTER */
.footer { padding: 40px 0; border-top: 1px solid var(--border-soft); background: rgba(0,0,0,0.3); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer-meta { color: var(--text-dim); font-size: 13px; }

/* RESPONSIVE */
@media (max-width: 960px) {
  .nav-links { display: none; }
  /* compact sticky header with prominent download button */
  .nav { background: rgba(7, 9, 13, 0.85); -webkit-backdrop-filter: blur(18px) saturate(140%); backdrop-filter: blur(18px) saturate(140%); }
  .nav-inner { height: 60px; }
  .brand { gap: 8px; }
  .brand-text { font-size: 18px; letter-spacing: 1.5px; }
  .brand-cn { font-size: 14px; padding-left: 8px; letter-spacing: 2px; }
  .nav-cta { display: flex; }
  .nav-dl-btn { padding: 9px 16px; font-size: 13px; border-radius: 999px; }
  .nav-dl-btn .nav-dl-full  { display: none; }
  .nav-dl-btn .nav-dl-short { display: inline-flex; align-items: center; }
  .hero { padding: 40px 0 60px; }
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero-visual { min-height: 360px; order: -1; position: static; top: auto; }
  /* stack contact cards on mobile to preserve readability */
  .dl-group-contact { grid-template-columns: 1fr; }
  .contacts { padding: 56px 0; }
  .contacts-head { margin-bottom: 28px; }
  .contacts-grid { grid-template-columns: 1fr; gap: 16px; }
  .contact-card { padding: 20px; gap: 14px; }
  .contact-brand-img { width: 48px; height: 48px; }
  .contact-brand-name { font-size: 16px; }
  .contact-desc { font-size: 13px; }
  .contact-actions .btn { padding: 11px 14px; font-size: 13px; }
  .advantages { max-width: 100%; margin-top: 20px; padding-top: 20px; }
  .adv-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .adv-item { padding: 12px; }
  .adv-ico { width: 32px; height: 32px; font-size: 14px; }
  .adv-item strong { font-size: 12px; }
  .adv-item span { font-size: 10px; }
  .adv-title { font-size: 18px; }
  .phone-img { max-height: 340px; }
  .phone-glow { width: 280px; height: 280px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .safew-inner { grid-template-columns: 1fr; gap: 40px; }
  .features, .guide, .safew, .final-cta { padding: 64px 0; }
  .floating-card { padding: 8px 12px; font-size: 11px; }
  .card-1 { top: 4%; left: -8px; }
  .card-2 { bottom: 4%; right: -8px; }
  .hero-title { margin: 20px 0 16px; line-height: 1.1; }
  .hero-sub { font-size: 15px; line-height: 1.7; }
  .hero-actions { gap: 20px; margin: 28px 0 24px; max-width: 100%; }
  .dl-group { padding: 18px 16px 16px; gap: 8px; }
  .dl-group-title { font-size: 15px; }
  .dl-group-desc { font-size: 12px; }
  .dl-card { padding: 14px 16px; gap: 12px; }
  .dl-icon { width: 40px; height: 40px; }
  .dl-icon svg { width: 22px; height: 22px; }
  .dl-label { font-size: 14px; }
  .dl-sub { font-size: 11px; }
}
@media (max-width: 540px) {
  /* layout density */
  .container { padding: 0 16px; }
  .feature-grid { grid-template-columns: 1fr; gap: 12px; }
  .trust-row { gap: 12px 20px; padding-top: 18px; flex-wrap: wrap; justify-content: space-between; }
  .trust-item strong { font-size: 22px; }
  .trust-item span { font-size: 11px; }
  .divider { display: none; }
  .features, .guide, .final-cta { padding: 56px 0; }
  .showcase { padding: 48px 0 !important; }
  .section-title { font-size: 30px !important; line-height: 1.2; }
  .section-eyebrow { font-size: 11px; letter-spacing: 2px; }
  .section-desc { font-size: 14px; }

  /* keep nav download button visible & compact */
  .nav-cta { display: flex; }
  .nav-dl-btn { padding: 8px 14px; font-size: 12px; }

  /* hero */
  .hero-visual { min-height: 300px; }
  .phone-img { max-height: 280px; }
  .phone-glow { width: 220px; height: 220px; }
  .eyebrow { font-size: 10px; padding: 6px 12px; letter-spacing: 1.5px; }

  /* tabs: horizontal scroll on phone so they don't wrap awkwardly */
  .tabs { padding: 4px; gap: 4px; max-width: 100%; overflow-x: auto;
    -webkit-overflow-scrolling: touch; scrollbar-width: none; flex-wrap: nowrap; }
  .tabs::-webkit-scrollbar { display: none; }
  .tab { padding: 10px 16px; font-size: 13px; flex-shrink: 0; }
  .tabs-os { flex-direction: column; background: transparent; padding: 0; gap: 8px; border: none; border-radius: 0; }
  .tabs-os .os-tab { width: 100%; text-align: center; justify-content: center; }

  /* install guide steps — 2 cols looks better than 1 on phone */
  .steps { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .step figcaption { padding: 10px 12px; font-size: 11px; line-height: 1.5; }
  .step figcaption b { font-size: 10px; }
  .os-intro { font-size: 13px; padding: 14px 16px; }

  /* showcase phones: 3 in a row gets too small — use 2 + 1 grid */
  .showcase-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .showcase-grid img:nth-child(3) { grid-column: 1 / -1; max-width: 60%; margin: 0 auto; }
  .showcase-grid img:nth-child(2) { transform: none; }
  .feat-list { gap: 8px; }
  .feat-list li { font-size: 13px; }

  /* official account block */
  .official-add { padding: 20px 16px; gap: 24px; margin-top: 24px; }
  .official-info h4 { font-size: 18px; }
  .official-id { font-size: 18px; padding: 8px 14px; letter-spacing: 1px; word-break: break-all; }
  .official-desc { font-size: 12px; }
  .official-qr img { width: 170px; height: 170px; padding: 8px; }

  /* group contact badge smaller on mobile */
  .dl-group-contact::before { font-size: 9px; padding: 3px 10px; right: 14px; }

  /* footer */
  .footer { padding: 28px 0; }
  .footer-meta { font-size: 11px; }

  /* CTA */
  .final-cta { padding: 70px 0; }
  .cta-inner h2 { font-size: 32px !important; }
  .cta-inner p { font-size: 14px; margin: 12px 0 24px; }
  .cta-buttons .btn { padding: 12px 22px; font-size: 14px; }
}

/* Extra small phones */
@media (max-width: 380px) {
  .container { padding: 0 14px; }
  .hero-title { font-size: 38px !important; }
  .logo-text-xl { font-size: 0.95em; }
  .dl-card { padding: 12px 14px; }
  .dl-label { font-size: 13px; }
  .dl-sub { font-size: 10px; }
  .dl-arrow { font-size: 16px; }
  .official-qr img { width: 150px; height: 150px; }
}