:root {
  --ink: #181614;
  --ink-soft: #514b47;
  --muted: #817a74;
  --line: #ece7e2;
  --paper: #ffffff;
  --canvas: #f7f5f2;
  --orange: #ff5938;
  --orange-dark: #e94727;
  --orange-soft: #fff0eb;
  --orange-wash: #fff8f5;
  --green: #22a06b;
  --shadow: 0 24px 70px rgba(62, 39, 27, .11);
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 9% 7%, rgba(255, 109, 75, .07), transparent 20rem),
    radial-gradient(circle at 94% 39%, rgba(255, 149, 111, .08), transparent 28rem),
    var(--canvas);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
button, input, select { font: inherit; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
img, svg { display: block; }
.shell { width: min(1160px, calc(100% - 48px)); margin-inline: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  height: 76px;
  background: rgba(247, 245, 242, .88);
  border-bottom: 1px solid rgba(232, 226, 220, .8);
  backdrop-filter: blur(18px);
}
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 20px; font-weight: 750; letter-spacing: -.04em; }
.brand-mark {
  position: relative;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  overflow: hidden;
  color: white;
  background: var(--orange);
  border-radius: 11px;
  box-shadow: 0 7px 18px rgba(255, 89, 56, .23);
}
.brand-mark::before, .brand-mark::after {
  content: "";
  position: absolute;
  width: 6px;
  height: 26px;
  top: 5px;
  border-radius: 8px;
  background: white;
  transform: rotate(27deg);
}
.brand-mark::before { left: 11px; }
.brand-mark::after { right: 8px; height: 20px; top: 12px; transform: rotate(-28deg); }
.brand-mark span { opacity: 0; }
.main-nav { display: flex; align-items: center; gap: 38px; font-size: 14px; color: #4a4541; }
.main-nav a { position: relative; padding: 28px 0; }
.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 19px;
  left: 50%;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--orange);
  transform: translateX(-50%);
  transition: width .22s ease;
}
.main-nav a:hover::after { width: 18px; }
.main-nav a.active { color: var(--orange-dark); }
.main-nav a.active::after { width: 18px; }
.header-actions { display: flex; align-items: center; gap: 10px; }
.text-button {
  border: 0;
  background: transparent;
  color: #4a4541;
  padding: 10px 13px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 0 25px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button svg { width: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.button-primary {
  color: white;
  background: linear-gradient(135deg, #ff6847, var(--orange));
  box-shadow: 0 14px 30px rgba(255, 89, 56, .24);
}
.button-primary:hover { background: linear-gradient(135deg, #ff5b39, var(--orange-dark)); box-shadow: 0 17px 34px rgba(255, 89, 56, .32); }
.button-secondary { color: var(--ink); background: white; border-color: var(--line); }
.button-secondary:hover { border-color: #d8d0c9; box-shadow: 0 10px 24px rgba(50, 38, 30, .07); }
.button-white { color: var(--orange-dark); background: white; box-shadow: 0 16px 34px rgba(108, 45, 27, .18); }
.button-compact { min-height: 40px; padding: 0 18px; font-size: 13px; }
.button.full { width: 100%; }
.button[disabled] { cursor: not-allowed; opacity: .55; transform: none; box-shadow: none; }

.hero { position: relative; overflow: hidden; padding: 88px 0 95px; }
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(255, 89, 56, .18) .7px, transparent .7px);
  background-size: 18px 18px;
  mask-image: linear-gradient(to right, transparent 38%, black, transparent 94%);
  opacity: .33;
}
.hero-grid { position: relative; display: grid; grid-template-columns: .91fr 1.09fr; gap: 70px; align-items: center; }
.hero-copy { padding: 20px 0; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--orange-dark);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .11em;
  text-transform: uppercase;
}
.eyebrow.light { color: #ffe0d6; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 5px var(--orange-soft); }
.hero h1 {
  margin: 22px 0 22px;
  font-size: clamp(52px, 6vw, 82px);
  line-height: .98;
  letter-spacing: -.075em;
  font-weight: 820;
}
.hero h1 em { color: var(--orange); font-style: normal; }
.hero-description { max-width: 515px; margin: 0; color: var(--ink-soft); font-size: 17px; line-height: 1.8; }
.hero-actions { display: flex; gap: 12px; margin-top: 34px; }
.trust-row { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 26px; color: var(--muted); font-size: 12px; }
.trust-row span { display: inline-flex; align-items: center; gap: 7px; }
.trust-row i {
  display: grid;
  width: 17px;
  height: 17px;
  place-items: center;
  color: var(--orange);
  background: var(--orange-soft);
  border-radius: 50%;
  font-style: normal;
  font-size: 10px;
  font-weight: 800;
}
.hero-visual { position: relative; min-height: 500px; display: grid; place-items: center; }
.preview-orbit {
  position: absolute;
  border: 1px solid rgba(255, 89, 56, .13);
  border-radius: 50%;
  transform: rotate(-18deg);
}
.orbit-one { width: 570px; height: 350px; }
.orbit-two { width: 470px; height: 450px; }
.app-preview {
  position: relative;
  z-index: 2;
  width: min(540px, 100%);
  aspect-ratio: 1.34;
  overflow: hidden;
  background: #f3f1ef;
  border: 1px solid rgba(255, 255, 255, .68);
  border-radius: 28px;
  box-shadow: 0 36px 90px rgba(58, 39, 31, .16);
  transform: rotate(1.2deg);
}
.preview-top { height: 59px; padding: 0 18px; display: flex; align-items: center; justify-content: space-between; background: white; }
.mini-brand { display: flex; align-items: center; gap: 9px; font-size: 11px; font-weight: 800; }
.mini-logo { display: grid; width: 29px; height: 29px; place-items: center; color: white; background: var(--orange); border-radius: 8px; font-size: 13px; }
.preview-plan { padding: 10px 15px; border-radius: 999px; background: white; box-shadow: 0 5px 14px rgba(55, 35, 25, .08); font-size: 9px; font-weight: 700; }
.preview-body { display: flex; height: calc(100% - 59px); padding: 15px; gap: 14px; }
.preview-nav { flex: 0 0 50px; border-radius: 24px; background: white; }
.preview-nav-item { display: block; width: 17px; height: 17px; margin: 39px auto 0; border: 1.6px solid #c8c4c0; border-radius: 6px; }
.preview-nav-item.active { background: var(--orange); border-color: var(--orange); box-shadow: 0 7px 15px rgba(255, 89, 56, .24); }
.preview-main { position: relative; flex: 1; display: grid; place-items: center; overflow: hidden; }
.preview-halo { position: absolute; width: 315px; height: 315px; border-radius: 50%; background: #ebe8e5; }
.preview-halo::before { content: ""; position: absolute; inset: 42px; border-radius: inherit; border: 1px solid #e3dfdc; }
.preview-hex {
  position: relative;
  width: 177px;
  height: 195px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  clip-path: polygon(50% 0, 94% 25%, 94% 75%, 50% 100%, 6% 75%, 6% 25%);
  background: white;
}
.preview-hex small { color: #69635e; font-size: 9px; }
.preview-hex strong { margin-top: 8px; font-size: 20px; }
.preview-hex span { margin-top: 6px; color: #a19b96; font-size: 8px; }
.preview-connect {
  position: absolute;
  bottom: 28px;
  width: 270px;
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: white;
  border-radius: 999px;
  font-size: 11px;
}
.mini-globe {
  position: relative;
  width: 30px;
  height: 30px;
  border: 2px solid var(--orange);
  border-radius: 50%;
}
.mini-globe::before, .mini-globe::after {
  content: "";
  position: absolute;
  inset: 5px 8px;
  border: 1px solid var(--orange);
  border-radius: 50%;
}
.mini-globe::after { inset: 13px 3px auto; border: 0; border-top: 1px solid var(--orange); border-radius: 0; }
.floating-chip {
  position: absolute;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 142px;
  padding: 13px 16px;
  background: rgba(255, 255, 255, .93);
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 16px;
  box-shadow: 0 15px 35px rgba(55, 34, 26, .12);
  backdrop-filter: blur(10px);
}
.floating-chip strong, .floating-chip small { display: block; }
.floating-chip strong { font-size: 11px; }
.floating-chip small { margin-top: 3px; color: var(--muted); font-size: 8px; }
.chip-shield { left: 1%; bottom: 82px; }
.chip-speed { right: -1%; top: 85px; }
.chip-icon {
  display: grid;
  width: 31px;
  height: 31px;
  place-items: center;
  color: white;
  background: var(--orange);
  border-radius: 50%;
  font-weight: 800;
}
.speed-bars { display: inline-flex; align-items: end; gap: 3px; height: 24px; }
.speed-bars i { display: block; width: 4px; background: var(--orange); border-radius: 4px; }
.speed-bars i:nth-child(1) { height: 8px; }
.speed-bars i:nth-child(2) { height: 15px; }
.speed-bars i:nth-child(3) { height: 23px; }

.stats-band { border-block: 1px solid var(--line); background: rgba(255,255,255,.55); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stats-grid > div { padding: 30px 20px; text-align: center; border-right: 1px solid var(--line); }
.stats-grid > div:last-child { border-right: 0; }
.stats-grid strong { display: block; font-size: 30px; letter-spacing: -.05em; }
.stats-grid span { display: block; margin-top: 5px; color: var(--muted); font-size: 11px; }

.section { padding-top: 110px; padding-bottom: 110px; }
.section-heading { max-width: 610px; margin-bottom: 42px; }
.section-heading h2 { margin: 15px 0 14px; font-size: clamp(38px, 4vw, 55px); line-height: 1.12; letter-spacing: -.055em; }
.section-heading p { max-width: 500px; margin: 0; color: var(--muted); line-height: 1.75; }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-heading.centered p { margin-inline: auto; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature-card {
  position: relative;
  min-height: 250px;
  overflow: hidden;
  padding: 30px;
  background: rgba(255, 255, 255, .8);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform .25s ease, box-shadow .25s ease;
}
.feature-card:hover { transform: translateY(-5px); box-shadow: 0 20px 45px rgba(52, 37, 29, .08); }
.feature-card.feature-wide { grid-column: span 2; display: flex; align-items: flex-start; gap: 25px; }
.feature-card.orange { color: white; background: linear-gradient(135deg, #ff7656, var(--orange)); border-color: transparent; }
.feature-icon {
  width: 51px;
  height: 51px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  color: var(--orange);
  background: var(--orange-soft);
  border-radius: 15px;
}
.feature-icon.light { color: white; background: rgba(255,255,255,.17); }
.feature-icon svg { width: 25px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.feature-card:not(.feature-wide) .feature-icon { margin-bottom: 37px; }
.feature-card h3 { margin: 0 0 10px; font-size: 20px; letter-spacing: -.025em; }
.feature-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.feature-card.orange p { color: #ffe9e2; }
.feature-number { position: absolute; right: 26px; bottom: 16px; color: #f0ebe7; font-size: 76px; font-weight: 850; line-height: 1; }
.feature-card.orange .feature-number { color: rgba(255,255,255,.12); }

.pricing-section { background: #f1eeea; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
.price-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 510px;
  padding: 34px;
  background: white;
  border: 1px solid transparent;
  border-radius: 28px;
}
.price-card.featured { border-color: var(--orange); box-shadow: 0 22px 55px rgba(255, 89, 56, .13); }
.recommended { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); padding: 7px 15px; color: white; background: var(--orange); border-radius: 999px; font-size: 10px; font-weight: 800; white-space: nowrap; }
.plan-kicker { color: var(--orange); font-size: 11px; font-weight: 750; }
.price-card h3 { margin: 14px 0 25px; font-size: 24px; }
.price { font-size: 54px; font-weight: 820; letter-spacing: -.06em; }
.price small { margin-right: 4px; font-size: 20px; font-weight: 700; }
.price span { color: var(--muted); font-size: 13px; font-weight: 500; letter-spacing: 0; }
.price-card > p { color: var(--muted); font-size: 13px; line-height: 1.65; }
.price-card ul { display: grid; gap: 12px; margin: 12px 0 30px; padding: 25px 0 0; border-top: 1px solid var(--line); list-style: none; }
.price-card li { display: flex; gap: 9px; font-size: 13px; }
.price-card li::before { content: "✓"; color: var(--orange); font-weight: 850; }
.price-card .button { margin-top: auto; }

.download-card {
  position: relative;
  overflow: hidden;
  display: flex;
  min-height: 340px;
  align-items: center;
  justify-content: space-between;
  padding: 64px 68px;
  color: white;
  background: linear-gradient(128deg, #ff7859, var(--orange));
  border-radius: 36px;
  box-shadow: 0 30px 80px rgba(221, 66, 34, .25);
}
.download-card h2 { max-width: 520px; margin: 15px 0; font-size: clamp(38px, 4vw, 54px); line-height: 1.08; letter-spacing: -.055em; }
.download-card p { color: #fff0eb; line-height: 1.7; }
.download-card small { display: block; margin-top: 18px; color: #ffd9ce; font-size: 11px; }
.download-art { position: relative; width: 290px; height: 250px; flex: 0 0 auto; }
.download-ring { position: absolute; border: 1px solid rgba(255,255,255,.27); border-radius: 50%; }
.ring-a { inset: 10px 40px; }
.ring-b { inset: 35px 10px 22px 65px; }
.download-logo {
  position: absolute;
  inset: 70px 90px;
  display: grid;
  place-items: center;
  background: white;
  color: var(--orange);
  border-radius: 30px;
  font-size: 60px;
  font-weight: 850;
  box-shadow: 0 24px 50px rgba(100, 32, 12, .2);
  transform: rotate(5deg);
}

.faq-section { padding-top: 20px; }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.faq-grid details { background: white; border: 1px solid var(--line); border-radius: 18px; }
.faq-grid summary { position: relative; padding: 23px 48px 23px 23px; cursor: pointer; font-size: 14px; font-weight: 700; list-style: none; }
.faq-grid summary::-webkit-details-marker { display: none; }
.faq-grid summary::after { content: "+"; position: absolute; right: 22px; top: 19px; color: var(--orange); font-size: 22px; font-weight: 400; }
.faq-grid details[open] summary::after { content: "−"; }
.faq-grid details p { margin: -5px 23px 22px; color: var(--muted); font-size: 13px; line-height: 1.7; }

.site-footer { padding-top: 70px; background: white; border-top: 1px solid var(--line); }
.footer-main { display: flex; justify-content: space-between; gap: 80px; padding-bottom: 60px; }
.footer-brand p { max-width: 250px; color: var(--muted); font-size: 13px; line-height: 1.7; }
.footer-links { display: grid; grid-template-columns: repeat(3, minmax(130px, 1fr)); gap: 70px; }
.footer-links div { display: flex; flex-direction: column; gap: 13px; font-size: 12px; }
.footer-links strong { margin-bottom: 5px; font-size: 12px; }
.footer-links a:hover { color: var(--orange); }
.footer-links span { color: var(--muted); }
.footer-bottom { display: flex; justify-content: space-between; padding: 22px 0 28px; color: #a49d97; border-top: 1px solid var(--line); font-size: 10px; }

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(24, 19, 16, .44);
  backdrop-filter: blur(9px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease;
}
.modal-backdrop.open { opacity: 1; visibility: visible; }
.auth-modal {
  position: relative;
  width: min(440px, 100%);
  padding: 36px 36px 30px;
  background: white;
  border-radius: 28px;
  box-shadow: 0 30px 90px rgba(35, 25, 19, .25);
  transform: translateY(15px) scale(.98);
  transition: transform .22s ease;
}
.modal-backdrop.open .auth-modal { transform: none; }
.modal-close { position: absolute; top: 17px; right: 19px; width: 34px; height: 34px; color: #746d67; background: #f5f2ef; border: 0; border-radius: 50%; font-size: 21px; }
.auth-mark { display: grid; width: 47px; height: 47px; place-items: center; color: white; background: var(--orange); border-radius: 14px; font-size: 22px; font-weight: 850; }
.auth-modal h2 { margin: 20px 0 7px; font-size: 27px; letter-spacing: -.04em; }
.auth-subtitle { margin: 0 0 22px; color: var(--muted); font-size: 13px; }
.auth-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; padding: 4px; margin-bottom: 20px; background: #f3f0ed; border-radius: 12px; }
.auth-tabs button { height: 38px; color: var(--muted); background: transparent; border: 0; border-radius: 9px; font-weight: 700; }
.auth-tabs button.active { color: var(--ink); background: white; box-shadow: 0 4px 12px rgba(52, 36, 27, .08); }
.field { display: grid; gap: 7px; margin-bottom: 14px; font-size: 11px; font-weight: 700; }
.field input { width: 100%; height: 47px; padding: 0 14px; color: var(--ink); background: #faf8f6; border: 1px solid var(--line); border-radius: 12px; outline: 0; font-weight: 500; }
.field input:focus { border-color: var(--orange); box-shadow: 0 0 0 3px var(--orange-soft); }
.register-only { display: none; }
.auth-modal.register .register-only { display: grid; }
.form-message { min-height: 17px; margin: 2px 0 11px; color: var(--orange-dark); font-size: 11px; }
.auth-terms { margin: 16px 0 0; color: #9a928c; font-size: 10px; line-height: 1.6; text-align: center; }
.auth-terms a { color: var(--orange); }
.toast {
  position: fixed;
  z-index: 120;
  left: 50%;
  bottom: 26px;
  max-width: min(440px, calc(100% - 32px));
  padding: 13px 19px;
  color: white;
  background: #28231f;
  border-radius: 12px;
  box-shadow: 0 14px 40px rgba(0,0,0,.2);
  font-size: 12px;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 10px);
  transition: .2s ease;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* Purchase page */
.checkout-page { padding: 52px 0 105px; }
.checkout-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 38px; }
.checkout-heading h1 { max-width: 700px; margin: 10px 0 8px; font-size: clamp(38px, 5vw, 60px); line-height: 1.05; letter-spacing: -.06em; }
.checkout-heading p { margin: 0; color: var(--muted); }
.secure-note { display: flex; align-items: center; gap: 10px; padding: 11px 15px; color: #62716b; background: rgba(255,255,255,.75); border: 1px solid var(--line); border-radius: 999px; font-size: 11px; white-space: nowrap; }
.secure-note span { display: grid; width: 19px; height: 19px; place-items: center; color: white; background: var(--green); border-radius: 50%; font-size: 10px; }
.checkout-step { margin-bottom: 42px; }
.step-heading { display: flex; align-items: center; gap: 16px; margin-bottom: 18px; }
.step-number { padding: 8px 16px; color: white; background: var(--orange); border-radius: 999px; font-size: 11px; font-weight: 750; }
.step-heading h2 { margin: 0; font-size: 19px; letter-spacing: -.025em; }
.plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.plan-option {
  position: relative;
  overflow: hidden;
  min-height: 212px;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 22px 24px;
  background: rgba(255,255,255,.78);
  border: 1px solid var(--line);
  border-radius: 16px;
  cursor: pointer;
  transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
}
.plan-option:hover { border-color: #ffb5a5; }
.plan-option.selected { background: var(--orange-wash); border-color: var(--orange); box-shadow: 0 16px 36px rgba(255,89,56,.09); }
.plan-option input { position: absolute; opacity: 0; pointer-events: none; }
.plan-tag { padding: 6px 12px; color: #77706a; background: #f1eeeb; border-radius: 999px; font-size: 9px; font-weight: 750; }
.plan-option:nth-child(2) .plan-tag { color: #be740a; background: #fff2d8; }
.plan-option:nth-child(3) .plan-tag { color: white; background: var(--orange); }
.plan-name { display: flex; align-items: center; gap: 9px; margin-top: 18px; font-size: 20px; font-weight: 750; }
.plan-radio { width: 17px; height: 17px; border: 1.5px solid #d6cec8; border-radius: 50%; }
.selected .plan-radio { border: 5px solid var(--orange); background: white; }
.plan-price { margin-top: 8px; color: var(--orange); font-size: 38px; font-weight: 820; letter-spacing: -.055em; }
.plan-price small { margin-right: 3px; font-size: 18px; }
.plan-meta { margin-top: 8px; color: var(--muted); font-size: 11px; }
.plan-offer { margin-top: 8px; color: var(--orange-dark); font-size: 9px; }
.orb-decoration { position: absolute; right: -32px; top: 58px; width: 110px; height: 110px; border: 1px solid rgba(255,89,56,.15); border-radius: 50%; pointer-events: none; }
.orb-decoration::before { content: ""; position: absolute; inset: 17px; border: 1px solid rgba(255,89,56,.13); border-radius: inherit; }

.account-card {
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 16px 12px 22px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 13px;
}
.account-profile { display: flex; align-items: center; gap: 13px; }
.account-avatar { display: grid; width: 38px; height: 38px; place-items: center; color: var(--orange); background: var(--orange-soft); border-radius: 50%; font-weight: 800; }
.account-avatar svg { width: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.account-profile strong, .account-profile span { display: block; }
.account-profile strong { font-size: 13px; }
.account-profile span { margin-top: 2px; color: var(--muted); font-size: 10px; }
.account-card .button { min-height: 37px; padding: 0 17px; font-size: 11px; }

.pay-layout { display: grid; grid-template-columns: 1.08fr .92fr; gap: 18px; align-items: start; }
.payment-list { display: grid; gap: 12px; }
.payment-option {
  position: relative;
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 12px 18px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 13px;
  cursor: pointer;
}
.payment-option.selected { background: var(--orange-wash); border-color: var(--orange); }
.payment-option.disabled { cursor: not-allowed; opacity: .6; }
.payment-option input { position: absolute; opacity: 0; }
.payment-icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 11px; background: #f8f5f2; font-size: 18px; font-weight: 800; }
.payment-icon.alipay { color: #1677ff; }
.payment-icon.wechat { color: #09bb65; }
.payment-copy { flex: 1; }
.payment-copy strong, .payment-copy span { display: block; }
.payment-copy strong { font-size: 13px; }
.payment-copy span { margin-top: 3px; color: var(--muted); font-size: 10px; }
.payment-radio { width: 20px; height: 20px; border: 1px solid #ddd5cf; border-radius: 50%; }
.selected .payment-radio { border: 6px solid var(--orange); }
.payment-option.static { cursor: default; opacity: 1; }
.payment-state {
  padding: 6px 10px;
  color: var(--orange-dark);
  background: var(--orange-soft);
  border-radius: 999px;
  font-size: 9px;
  font-weight: 750;
}
.payment-state.muted { color: #8b837d; background: #f2efec; }
.client-note { padding: 15px 17px; color: #766f69; background: rgba(255,255,255,.72); border: 1px dashed #ddd4cd; border-radius: 12px; font-size: 11px; line-height: 1.6; }
.benefits-card { padding: 25px 27px; background: white; border: 1px solid var(--line); border-radius: 16px; }
.benefits-card h3 { margin: 0 0 18px; font-size: 17px; }
.benefits-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.benefit { display: flex; align-items: center; gap: 10px; min-height: 47px; padding: 8px 11px; background: var(--orange-wash); border-radius: 9px; font-size: 10px; }
.benefit-icon { width: 23px; height: 23px; display: grid; place-items: center; color: var(--orange); background: white; border-radius: 50%; }
.benefit-icon svg { width: 13px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.checkout-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 24px;
  padding-top: 23px;
  border-top: 1px solid var(--line);
}
.total-copy span { color: var(--muted); font-size: 12px; }
.total-copy strong { display: block; margin-top: 5px; color: var(--orange); font-size: 35px; letter-spacing: -.05em; }
.checkout-button { width: min(300px, 100%); min-height: 56px; font-size: 14px; }
.checkout-help { margin-top: 12px; color: #9b938c; font-size: 10px; text-align: right; }
.checkout-error { min-height: 20px; margin-top: 13px; color: #c74930; font-size: 11px; text-align: right; }

.legal-page { max-width: 850px; }
.legal-page > h1 { margin: 15px 0 7px; font-size: clamp(42px, 6vw, 66px); letter-spacing: -.06em; }
.legal-date { color: var(--muted); font-size: 12px; }
.legal-card {
  margin-top: 34px;
  padding: clamp(25px, 5vw, 52px);
  background: white;
  border: 1px solid var(--line);
  border-radius: 26px;
}
.legal-card h2 { margin: 32px 0 10px; font-size: 19px; }
.legal-card h2:first-child { margin-top: 0; }
.legal-card p { margin: 0; color: #65605b; font-size: 14px; line-height: 1.9; }
.not-found {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}
.not-found h1 { margin: 20px 0 10px; font-size: clamp(48px, 8vw, 82px); letter-spacing: -.07em; }
.not-found p { margin: 0 0 28px; color: var(--muted); }

@media (max-width: 980px) {
  .main-nav { gap: 22px; }
  .hero-grid { grid-template-columns: 1fr; gap: 35px; }
  .hero-copy { text-align: center; margin-inline: auto; }
  .hero-description { margin-inline: auto; }
  .hero-actions, .trust-row { justify-content: center; }
  .hero-visual { min-height: 440px; }
  .app-preview { width: min(520px, 92%); }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .feature-card.feature-wide { grid-column: span 2; }
  .pricing-grid { grid-template-columns: 1fr; }
  .price-card { min-height: auto; }
  .plan-grid { grid-template-columns: 1fr; }
  .plan-option { min-height: 145px; }
  .pay-layout { grid-template-columns: 1fr; }
  .footer-main { flex-direction: column; gap: 35px; }
}

@media (max-width: 760px) {
  .shell { width: min(100% - 30px, 620px); }
  .site-header { height: 66px; }
  .main-nav { display: none; }
  .hero { padding-top: 58px; }
  .hero h1 { font-size: clamp(46px, 13vw, 64px); }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .hero-visual { min-height: 360px; }
  .app-preview { aspect-ratio: 1.08; }
  .floating-chip { display: none; }
  .preview-nav { flex-basis: 38px; }
  .preview-connect { width: 220px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid > div:nth-child(2) { border-right: 0; }
  .stats-grid > div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section { padding-top: 78px; padding-bottom: 78px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card.feature-wide { grid-column: auto; display: block; }
  .feature-card { min-height: 220px; }
  .download-card { padding: 44px 28px; }
  .download-art { display: none; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: 1fr; gap: 27px; }
  .footer-bottom { gap: 12px; flex-direction: column; }
  .checkout-heading { align-items: flex-start; flex-direction: column; }
  .checkout-page { padding-top: 33px; }
  .secure-note { align-self: flex-start; }
  .account-card { align-items: flex-start; flex-direction: column; padding: 16px; }
  .checkout-total { align-items: stretch; flex-direction: column; }
  .checkout-button { width: 100%; }
  .checkout-error, .checkout-help { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}