/* ============================================================
   English Tube Landing Page
   品牌体系（取自 Flutter App AppColors / AppTheme）：
   brand #006241 · brandAccent #00754A · brandHouse #1E3932
   wash #D4E9E2 · washSoft #E8F5F0 · ink #222 · canvas #FFF
   ============================================================ */

:root {
  --brand: #006241;
  --brand-accent: #00754A;
  --brand-accent-2: #00945B;
  --brand-house: #1E3932;
  --brand-house-2: #15302A;
  --wash: #D4E9E2;
  --wash-soft: #E8F5F0;
  --wash-soft-2: #F3FAF7;
  --ink: #222222;
  --body: #3F3F3F;
  --muted: #6A6A6A;
  --hairline: #E4E7E5;
  --canvas: #FFFFFF;
  --surface: #F6F8F7;
  --accent-word: #4338CA;
  --accent-fav: #E11D48;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(16, 42, 34, .06), 0 4px 12px rgba(16, 42, 34, .05);
  --shadow-md: 0 8px 24px rgba(16, 42, 34, .10), 0 2px 6px rgba(16, 42, 34, .06);
  --shadow-lg: 0 24px 60px rgba(16, 42, 34, .18);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--canvas);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
::selection { background: rgba(0, 98, 65, .14); }

.container { width: min(1160px, 100% - 48px); margin-inline: auto; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 600; font-size: 15px; line-height: 1;
  padding: 13px 22px; border-radius: 999px;
  border: 1.5px solid transparent;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn svg { flex: none; }
.btn-lg { padding: 16px 28px; font-size: 16px; }
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-block { width: 100%; }
.btn-accent {
  background: linear-gradient(135deg, var(--brand-accent-2), var(--brand-accent));
  color: #fff; box-shadow: 0 10px 24px rgba(0, 117, 74, .32);
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(0, 117, 74, .40); }
.btn-primary { background: var(--brand); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-ghost {
  background: rgba(255,255,255,.06); color: #EAF3EF;
  border-color: rgba(255,255,255,.22); backdrop-filter: blur(6px);
}
.btn-ghost:hover { background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.38); }
.btn-outline { background: #fff; color: var(--brand); border-color: var(--brand); }
.btn-outline:hover { background: var(--wash-soft); }

/* ---------- Nav ---------- */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(30,57,50,.08);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; letter-spacing: -.2px; }
.brand-mark { display: inline-flex; filter: drop-shadow(0 2px 4px rgba(0,98,65,.25)); }
.brand-name { color: var(--brand-house); }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  padding: 8px 14px; border-radius: 999px; font-size: 15px; font-weight: 500;
  color: var(--body); transition: color .15s ease, background .15s ease;
}
.nav-links a:hover { color: var(--brand); background: var(--wash-soft); }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 42px; height: 42px; border: 1px solid var(--hairline); border-radius: 12px; background: #fff;
}
.nav-toggle span { width: 18px; height: 2px; background: var(--brand-house); border-radius: 2px; margin-inline: auto; transition: transform .25s ease, opacity .25s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Section scaffolding ---------- */
.section { padding: 96px 0; }
.section-head { max-width: 640px; margin: 0 auto 56px; text-align: center; }
.eyebrow {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .14em;
  color: var(--brand-accent); text-transform: uppercase; margin-bottom: 12px;
}
.section-head h2 { font-size: clamp(28px, 4vw, 40px); line-height: 1.2; letter-spacing: -.5px; color: var(--brand-house); }
.section-head p { margin-top: 14px; font-size: 17px; color: var(--muted); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1100px 520px at 78% -10%, rgba(0,148,91,.32), transparent 60%),
    radial-gradient(800px 500px at -10% 110%, rgba(212,233,226,.14), transparent 55%),
    linear-gradient(160deg, var(--brand-house) 0%, var(--brand-house-2) 55%, #0F2620 100%);
  color: #EAF3EF; padding: 84px 0 96px;
}
.hero-grid {
  position: absolute; inset: 0; opacity: .5; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 20%, transparent 75%);
}
.hero-glow { position: absolute; border-radius: 50%; filter: blur(90px); pointer-events: none; }
.hero-glow-1 { width: 460px; height: 460px; right: -80px; top: -120px; background: rgba(0,148,91,.35); }
.hero-glow-2 { width: 380px; height: 380px; left: -120px; bottom: -140px; background: rgba(212,233,226,.12); }
.hero-inner { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; color: #CDE8DD;
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14);
  padding: 7px 14px; border-radius: 999px; margin-bottom: 22px; letter-spacing: .02em;
}
.badge-dot { width: 7px; height: 7px; border-radius: 50%; background: #34D399; box-shadow: 0 0 0 3px rgba(52,211,153,.2); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 3px rgba(52,211,153,.25);} 50% { box-shadow: 0 0 0 6px rgba(52,211,153,.08);} }
.hero-title {
  font-size: clamp(38px, 5.4vw, 62px); line-height: 1.12; letter-spacing: -1px; font-weight: 800; color: #fff;
}
.hero-title .hl {
  position: relative; white-space: nowrap;
  background: linear-gradient(120deg, #5EEAD4, #34D399);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-title .hl-alt { color: var(--wash); }
.hero-sub { margin: 22px 0 30px; font-size: 18px; line-height: 1.75; color: #C6DCD4; max-width: 520px; }
.hero-sub .strong { color: #fff; font-weight: 600; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 38px; }
.hero-stats { display: flex; gap: 40px; }
.hero-stats dt { font-size: 24px; font-weight: 800; color: #fff; letter-spacing: -.3px; }
.hero-stats dd { font-size: 13.5px; color: #A9C5BB; margin-top: 2px; }

/* ---------- Phone mockup ---------- */
.hero-phone { position: relative; justify-self: center; }
.phone {
  position: relative; width: 300px; border-radius: 46px; padding: 11px;
  background: linear-gradient(160deg, #2E4A42, #12271F);
  box-shadow: 0 40px 80px rgba(0,0,0,.45), 0 0 0 1px rgba(255,255,255,.08), inset 0 1px 0 rgba(255,255,255,.14);
  transform: perspective(1400px) rotateY(-8deg) rotateX(2deg);
  transition: transform .6s ease;
}
.hero-phone:hover .phone { transform: perspective(1400px) rotateY(-2deg) rotateX(0deg); }
.phone-notch {
  position: absolute; top: 21px; left: 50%; transform: translateX(-50%);
  width: 96px; height: 26px; border-radius: 20px; background: #0B1713; z-index: 5;
}
.phone-screen {
  position: relative; overflow: hidden; border-radius: 36px; background: #fff;
  min-height: 620px; display: flex; flex-direction: column; box-shadow: inset 0 0 0 1px rgba(0,0,0,.06);
}
.ph-top { display: flex; align-items: center; gap: 8px; padding: 44px 16px 10px; }
.ph-back { font-size: 22px; color: var(--brand-house); line-height: 1; }
.ph-title { flex: 1; font-size: 12.5px; font-weight: 600; color: var(--brand-house); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ph-avatar {
  width: 26px; height: 26px; border-radius: 50%; background: linear-gradient(135deg, var(--brand-accent-2), var(--brand));
  color: #fff; font-size: 10px; font-weight: 700; display: grid; place-items: center; flex: none;
}
.ph-video {
  position: relative; margin: 6px 12px 0; border-radius: 18px; aspect-ratio: 16/10; overflow: hidden;
  background: linear-gradient(135deg, #0F2E25, #1E6B4C 55%, #2E9A6B);
  display: grid; place-items: center;
}
.ph-video-scene { position: absolute; inset: 0; }
.ph-scene-dot { position: absolute; border-radius: 50%; filter: blur(2px); animation: drift 9s ease-in-out infinite alternate; }
.ph-scene-dot.d1 { width: 130px; height: 130px; background: rgba(212,233,226,.28); top: -30px; left: -30px; }
.ph-scene-dot.d2 { width: 90px; height: 90px; background: rgba(94,234,212,.22); bottom: -20px; right: 20px; animation-delay: 2s; }
.ph-scene-dot.d3 { width: 60px; height: 60px; background: rgba(255,255,255,.14); bottom: 40px; left: 30px; animation-delay: 4s; }
@keyframes drift { from { transform: translate(0,0) scale(1);} to { transform: translate(16px,-14px) scale(1.15);} }
.ph-play {
  position: relative; z-index: 2; width: 52px; height: 52px; border-radius: 50%;
  background: rgba(255,255,255,.92); display: grid; place-items: center;
  box-shadow: 0 8px 24px rgba(0,0,0,.35); animation: playPulse 2.4s ease-in-out infinite;
}
.ph-play svg path { fill: var(--brand-accent); }
@keyframes playPulse {
  0%,100% { box-shadow: 0 8px 24px rgba(0,0,0,.35), 0 0 0 0 rgba(255,255,255,.35); }
  50% { box-shadow: 0 8px 24px rgba(0,0,0,.35), 0 0 0 16px rgba(255,255,255,0); }
}
.ph-video-tag {
  position: absolute; right: 10px; bottom: 10px; z-index: 2;
  font-size: 9px; font-weight: 700; color: #fff; background: rgba(0,0,0,.45);
  padding: 3px 7px; border-radius: 6px; letter-spacing: .04em;
}
.ph-wordcard {
  position: absolute; z-index: 4; left: 28px; right: 28px; top: 128px;
  background: #fff; border-radius: 16px; padding: 12px 14px;
  box-shadow: 0 16px 36px rgba(15,38,32,.28);
  transform: translateY(0); transition: opacity .5s ease, transform .5s ease;
}
.ph-wordcard.hide { opacity: 0; transform: translateY(-10px); pointer-events: none; }
.ph-word-head { display: flex; align-items: baseline; gap: 8px; }
.ph-word { font-size: 17px; font-weight: 800; color: var(--brand); }
.ph-phonetic { font-size: 12px; color: var(--muted); }
.ph-star { margin-left: auto; color: var(--accent-fav); font-size: 15px; }
.ph-pos { font-size: 12.5px; color: var(--accent-word); font-weight: 600; margin-top: 2px; }
.ph-example { font-size: 11px; color: var(--muted); margin-top: 4px; }
.ph-example b { color: var(--brand); }
.ph-subtitle {
  margin: 12px 14px 0; padding: 12px 14px; border-radius: 14px;
  background: var(--wash-soft); border: 1px solid rgba(0,98,65,.08);
  min-height: 74px; transition: opacity .3s ease;
}
.ph-sub-en { font-size: 14px; font-weight: 600; color: var(--ink); line-height: 1.4; }
.ph-sub-en .ph-karaoke { color: var(--brand-accent); background: rgba(0,148,91,.14); border-radius: 5px; padding: 0 3px; transition: background .2s ease; }
.ph-sub-zh { font-size: 12px; color: var(--muted); margin-top: 4px; }
.ph-controls { margin: 10px 14px 14px; }
.ph-progress { height: 5px; border-radius: 4px; background: #E3E9E6; overflow: hidden; }
.ph-progress span { display: block; height: 100%; width: 38%; border-radius: 4px; background: linear-gradient(90deg, var(--brand-accent-2), var(--brand-accent)); animation: prog 12s linear infinite; }
@keyframes prog { 0% { width: 12%; } 55% { width: 72%; } 100% { width: 12%; } }
.ph-buttons { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; }
.ph-btn { font-size: 12px; color: var(--brand-house); background: #F0F5F2; border-radius: 8px; padding: 5px 9px; font-weight: 600; }
.ph-btn.play { width: 30px; height: 30px; border-radius: 50%; background: var(--brand); color: #fff; display: grid; place-items: center; font-size: 11px; }

.float-card {
  position: absolute; display: flex; align-items: center; gap: 10px;
  background: #fff; border-radius: 16px; padding: 12px 16px;
  box-shadow: var(--shadow-lg); border: 1px solid rgba(0,98,65,.06);
  animation: floaty 6s ease-in-out infinite;
}
.float-card b { display: block; font-size: 13.5px; color: var(--ink); line-height: 1.3; }
.float-card small { font-size: 11.5px; color: var(--muted); }
.fc-icon { font-size: 22px; line-height: 1; }
.fc-1 { top: 130px; left: -78px; animation-delay: .5s; }
.fc-2 { bottom: 96px; right: -86px; animation-delay: 2.2s; }
@keyframes floaty { 0%,100% { transform: translateY(0);} 50% { transform: translateY(-12px);} }

/* ---------- Stats bar ---------- */
.stats-bar { background: var(--wash-soft); border-block: 1px solid rgba(0,98,65,.07); }
.stats-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 36px 0; }
.stat-item { text-align: center; }
.stat-num { display: block; font-size: 30px; font-weight: 800; color: var(--brand); letter-spacing: -.4px; }
.stat-label { font-size: 14px; color: var(--muted); margin-top: 4px; }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 20px; align-items: stretch; }
.step {
  background: var(--canvas); border: 1px solid var(--hairline); border-radius: var(--radius-lg);
  padding: 34px 28px; position: relative; box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
}
.step:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.step-num {
  position: absolute; top: 22px; right: 24px; font-size: 40px; font-weight: 800;
  color: var(--wash); letter-spacing: -2px; line-height: 1;
}
.step-icon {
  width: 56px; height: 56px; border-radius: 18px; display: grid; place-items: center;
  font-size: 26px; background: var(--wash-soft); margin-bottom: 20px;
}
.step h3 { font-size: 19px; color: var(--brand-house); margin-bottom: 10px; letter-spacing: -.2px; }
.step p { font-size: 14.5px; color: var(--muted); line-height: 1.7; }
.step-arrow { display: grid; place-items: center; font-size: 26px; color: var(--brand-accent); font-weight: 300; }

/* ---------- Features ---------- */
.features { background: var(--surface); }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.feature-card {
  background: var(--canvas); border: 1px solid var(--hairline); border-radius: var(--radius-lg);
  padding: 28px 24px; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(0,98,65,.18); }
.fc-icon-lg {
  width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center;
  font-size: 22px; background: linear-gradient(135deg, var(--wash-soft), var(--wash));
  margin-bottom: 18px;
}
.feature-card h3 { font-size: 16.5px; color: var(--brand-house); margin-bottom: 8px; letter-spacing: -.2px; }
.feature-card p { font-size: 13.5px; color: var(--muted); line-height: 1.65; }

/* ---------- Highlight rows ---------- */
.highlight { background: var(--canvas); }
.highlight.alt { background: var(--wash-soft-2); }
.highlight-row { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.highlight-copy h2 { font-size: clamp(26px, 3.4vw, 36px); line-height: 1.22; letter-spacing: -.5px; color: var(--brand-house); margin-bottom: 16px; }
.highlight-copy > p { font-size: 16px; color: var(--muted); line-height: 1.75; margin-bottom: 24px; }
.check-list li {
  position: relative; padding-left: 30px; font-size: 15px; color: var(--body); margin-bottom: 12px; font-weight: 500;
}
.check-list li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  width: 20px; height: 20px; border-radius: 50%; background: var(--brand-accent);
  color: #fff; font-size: 12px; font-weight: 700; display: grid; place-items: center;
}
.mock-window {
  background: #fff; border-radius: 20px; border: 1px solid var(--hairline); box-shadow: var(--shadow-lg);
  overflow: hidden; position: relative;
}
.mock-bar {
  display: flex; align-items: center; gap: 6px; padding: 12px 16px;
  background: #FBFCFB; border-bottom: 1px solid var(--hairline);
}
.mock-bar span { width: 10px; height: 10px; border-radius: 50%; background: #E1E6E3; }
.mock-bar span:nth-child(1) { background: #F4B8B0; }
.mock-bar span:nth-child(2) { background: #F6D88C; }
.mock-bar span:nth-child(3) { background: #B5E3C4; }
.mock-bar i { margin-left: auto; font-style: normal; font-size: 12px; color: var(--muted); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.mock-subtitle-box { padding: 28px 30px; background: var(--wash-soft); }
.mock-en { font-size: 17px; font-weight: 600; color: var(--ink); line-height: 1.6; }
.mock-en mark { background: linear-gradient(120deg, rgba(0,148,91,.18), rgba(0,148,91,.28)); color: var(--brand-accent); border-radius: 6px; padding: 0 5px; font-weight: 800; }
.mock-zh { font-size: 14px; color: var(--muted); margin-top: 6px; }
.mock-words { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
.wk {
  font-size: 12.5px; padding: 5px 10px; border-radius: 999px; background: #fff; color: var(--muted);
  border: 1px solid var(--hairline); animation: wkIn .5s ease both; animation-delay: calc(var(--d) * .12s);
}
.wk.on { background: var(--brand); color: #fff; border-color: var(--brand); font-weight: 700; }
@keyframes wkIn { from { opacity: 0; transform: translateY(6px) scale(.92);} to { opacity: 1; transform: none;} }
.mock-card {
  display: flex; align-items: baseline; gap: 10px; margin: 18px 30px 30px;
  padding: 14px 18px; border-radius: 14px; background: #fff; border: 1px solid rgba(0,98,65,.12);
  box-shadow: var(--shadow-sm); animation: cardPop .6s cubic-bezier(.2,.9,.3,1.2) .5s both;
}
.mock-card b { color: var(--brand); font-size: 15px; }
.mock-card i { font-style: normal; color: var(--muted); font-size: 13px; }
.mock-card em { font-style: normal; color: var(--accent-word); font-size: 13px; font-weight: 600; }
.mock-save { margin-left: auto; font-size: 12px; color: var(--accent-fav); font-weight: 600; }
@keyframes cardPop { from { opacity: 0; transform: translateY(12px) scale(.96);} to { opacity: 1; transform: none;} }

.mock-score { display: flex; gap: 22px; align-items: center; padding: 32px 30px 18px; }
.mock-score-ring {
  --p: 92; width: 108px; height: 108px; border-radius: 50%; flex: none;
  background: conic-gradient(var(--brand-accent) calc(var(--p) * 1%), #E7EFEB 0);
  display: grid; place-items: center; position: relative;
}
.mock-score-ring::before {
  content: ""; position: absolute; inset: 10px; border-radius: 50%; background: #fff;
}
.mock-score-ring::after {
  content: attr(data-score); position: relative; font-size: 28px; font-weight: 800; color: var(--brand-house);
}
.mock-score-info b { font-size: 17px; color: var(--brand-house); }
.mock-score-info p { font-size: 13.5px; color: var(--muted); margin: 6px 0 12px; line-height: 1.6; }
.mock-score-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.mock-score-tags span { font-size: 12px; font-weight: 600; color: var(--brand); background: var(--wash-soft); border: 1px solid rgba(0,98,65,.12); padding: 5px 10px; border-radius: 999px; }
.mock-wave { display: flex; align-items: flex-end; gap: 6px; height: 56px; padding: 0 30px 28px; }
.mock-wave span {
  flex: 1; border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, var(--brand-accent-2), var(--brand-accent));
  height: calc(var(--i) * 4px); opacity: .85;
  animation: wave 1.6s ease-in-out infinite alternate; animation-delay: calc(var(--i) * .07s);
  transform-origin: bottom;
}
@keyframes wave { from { transform: scaleY(.55); opacity: .5; } to { transform: scaleY(1); opacity: .9; } }

/* ---------- Membership ---------- */
.membership { background: linear-gradient(180deg, var(--wash-soft-2), var(--surface)); }
.price-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 380px)); gap: 24px; justify-content: center; }
.price-card {
  position: relative; background: #fff; border: 1px solid var(--hairline); border-radius: var(--radius-lg);
  padding: 36px 32px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column;
}
.price-card.featured { border-color: var(--brand); box-shadow: 0 20px 50px rgba(0,98,65,.16); }
.price-tag {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--brand-accent-2), var(--brand-accent)); color: #fff;
  font-size: 12px; font-weight: 700; padding: 5px 16px; border-radius: 999px; box-shadow: 0 6px 16px rgba(0,117,74,.3);
}
.price-card h3 { font-size: 17px; color: var(--brand-house); margin-bottom: 10px; }
.price { display: flex; align-items: baseline; gap: 6px; margin-bottom: 22px; }
.price-num { font-size: 38px; font-weight: 800; color: var(--brand-house); letter-spacing: -1px; }
.price-unit { color: var(--muted); font-size: 14px; }
.price-card ul { margin-bottom: 28px; flex: 1; }
.price-card li { position: relative; padding-left: 26px; font-size: 14.5px; color: var(--body); margin-bottom: 12px; }
.price-card li::before { content: "✓"; position: absolute; left: 0; color: var(--brand-accent); font-weight: 700; }

/* ---------- Testimonials ---------- */
.testimonials { background: var(--canvas); }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.testimonial {
  background: var(--wash-soft-2); border: 1px solid rgba(0,98,65,.07); border-radius: var(--radius-lg);
  padding: 28px 26px; display: flex; flex-direction: column;
}
.stars { color: #F5B93A; letter-spacing: 2px; font-size: 15px; margin-bottom: 14px; }
.testimonial p { font-size: 15px; color: var(--body); line-height: 1.75; flex: 1; }
.testimonial footer { display: flex; align-items: center; gap: 10px; margin-top: 20px; }
.t-avatar {
  width: 34px; height: 34px; border-radius: 50%; background: var(--c, var(--brand));
  color: #fff; font-weight: 700; font-size: 14px; display: grid; place-items: center; flex: none;
}
.testimonial cite { font-style: normal; font-weight: 600; color: var(--ink); font-size: 14px; }
.testimonial small { color: var(--muted); font-size: 12.5px; margin-left: auto; }

/* ---------- FAQ ---------- */
.faq { background: var(--surface); }
.faq-container { max-width: 780px; }
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: #fff; border: 1px solid var(--hairline); border-radius: var(--radius-md);
  overflow: hidden; transition: border-color .2s ease, box-shadow .2s ease;
}
.faq-item[open] { border-color: rgba(0,98,65,.25); box-shadow: var(--shadow-sm); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 19px 22px; cursor: pointer; font-size: 15.5px; font-weight: 600; color: var(--brand-house);
  list-style: none; user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--brand); }
.faq-icon {
  position: relative; flex: none; width: 22px; height: 22px; border-radius: 50%;
  background: var(--wash-soft); border: 1px solid rgba(0,98,65,.14); transition: transform .25s ease, background .25s ease;
}
.faq-icon::before, .faq-icon::after {
  content: ""; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 10px; height: 1.8px; background: var(--brand); border-radius: 2px;
}
.faq-icon::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-item[open] .faq-icon { transform: rotate(45deg); background: var(--wash); }
.faq-item p { padding: 0 22px 20px; font-size: 14.5px; color: var(--muted); line-height: 1.75; }

/* ---------- CTA ---------- */
.cta {
  position: relative; overflow: hidden; text-align: center;
  background: linear-gradient(160deg, var(--brand-house) 0%, #0F2620 100%); color: #fff;
}
.cta-glow {
  position: absolute; width: 600px; height: 600px; border-radius: 50%; top: -260px; left: 50%; transform: translateX(-50%);
  background: radial-gradient(circle, rgba(0,148,91,.38), transparent 65%); filter: blur(60px); pointer-events: none;
}
.cta-inner { position: relative; }
.cta h2 { font-size: clamp(28px, 4vw, 42px); letter-spacing: -.6px; line-height: 1.2; }
.cta p { margin: 16px auto 34px; font-size: 17px; color: #C6DCD4; max-width: 520px; }
.store-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.store-btn {
  display: inline-flex; align-items: center; gap: 12px; background: #fff; color: var(--brand-house);
  border-radius: 16px; padding: 12px 22px; font-weight: 600;
  box-shadow: 0 14px 34px rgba(0,0,0,.3); transition: transform .2s ease, box-shadow .2s ease;
}
.store-btn:hover { transform: translateY(-3px); box-shadow: 0 18px 40px rgba(0,0,0,.36); }
.store-btn small { display: block; font-size: 11px; font-weight: 500; color: var(--muted); line-height: 1.2; }
.store-btn b { font-size: 15px; line-height: 1.3; }
.cta-note { margin-top: 26px !important; font-size: 13px !important; color: #9DB9AE !important; }

/* ---------- Footer ---------- */
.site-footer { background: #0E211C; color: #C9DCD5; }
.footer-inner { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding: 64px 0 48px; }
.footer-brand .brand-name { color: #fff; }
.footer-brand p { margin: 14px 0 20px; font-size: 14px; color: #9DB9AE; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center;
  background: rgba(255,255,255,.07); color: #EAF3EF; font-size: 13px; font-weight: 600;
  transition: background .2s ease, color .2s ease;
}
.footer-social a:hover { background: var(--brand-accent); color: #fff; }
.footer-col h4 { font-size: 13px; font-weight: 700; color: #fff; margin-bottom: 16px; letter-spacing: .04em; text-transform: uppercase; }
.footer-col a { display: block; font-size: 14px; color: #9DB9AE; padding: 5px 0; transition: color .15s ease; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; }
.footer-bottom .container { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.footer-bottom span { font-size: 12.5px; color: #7E9C91; }
.footer-made { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s cubic-bezier(.2,.7,.3,1), transform .7s cubic-bezier(.2,.7,.3,1); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: 1fr; gap: 14px; }
  .step-arrow { transform: rotate(90deg); padding: 4px 0; }
  .highlight-row { gap: 44px; }
  .hero-inner { grid-template-columns: 1fr; gap: 72px; }
  .hero-copy { text-align: center; }
  .hero-sub { margin-inline: auto; }
  .hero-cta { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-phone { order: -1; }
  .float-card.fc-1 { left: 8px; }
  .float-card.fc-2 { right: 8px; }
}

@media (max-width: 860px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-inner { grid-template-columns: repeat(2, 1fr); gap: 22px; }
  .highlight-row { grid-template-columns: 1fr; }
  .order-last-mobile { order: 2; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .price-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 720px) {
  .section { padding: 68px 0; }
  .nav-links {
    position: fixed; inset: 68px 0 auto 0; z-index: 99;
    flex-direction: column; align-items: stretch; gap: 4px; padding: 14px 20px 20px;
    background: rgba(255,255,255,.98); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--hairline);
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: transform .25s ease, opacity .25s ease;
  }
  .nav-links.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-links a { padding: 13px 12px; font-size: 16px; border-radius: 12px; }
  .nav-toggle { display: flex; }
  .nav-cta .btn-sm { display: none; }
  .hero { padding: 56px 0 72px; }
  .hero-title { font-size: 38px; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .hero-stats dt { font-size: 20px; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom .container { justify-content: center; text-align: center; }
  .phone { width: 272px; }
  .phone-screen { min-height: 560px; }
  .float-card { display: none; }
  .mock-subtitle-box, .mock-score { padding: 22px 20px; }
  .mock-card { margin: 14px 20px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001s !important; animation-iteration-count: 1 !important; transition-duration: .001s !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}