/* ============ GPTEscaper — Claude Edition (Orange/Red) ============ */
:root {
  --ink:       #1d1d1f;
  --muted:     #5d5d63;
  --faint:     #86868b;

  --accent:    #E8623A;          /* Claude orange */
  --accent-press: #C54E2A;
  --green:     #1d9d57;

  --line:      rgba(0,0,0,0.08);
  --line-soft: rgba(0,0,0,0.05);

  /* Glass material */
  --glass-bg:    linear-gradient(150deg, rgba(255,255,255,0.72), rgba(255,255,255,0.5));
  --glass-bg-strong: linear-gradient(150deg, rgba(255,255,255,0.86), rgba(255,255,255,0.66));
  --glass-border: 1px solid rgba(255,255,255,0.75);
  --glass-blur:  saturate(160%) blur(22px);
  --glass-shadow: 0 10px 36px -10px rgba(28,40,90,0.14), inset 0 1px 0 rgba(255,255,255,0.9), inset 0 -1px 1px rgba(255,255,255,0.2);

  --radius:    20px;
  --radius-lg: 30px;
  --maxw:      1080px;

  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
          "Segoe UI", "PingFang SC", "Noto Sans SC", "Hiragino Sans GB", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: #eaecf2;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.5;
  position: relative;
  min-height: 100vh;
}
/* Warm orange/amber backdrop for Claude */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(620px 480px at 14% 4%,  rgba(255,180,140,0.34), transparent 60%),
    radial-gradient(680px 520px at 86% 0%,  rgba(255,160,120,0.28), transparent 58%),
    radial-gradient(720px 600px at 80% 74%, rgba(255,210,160,0.26), transparent 60%),
    radial-gradient(660px 560px at 6% 90%,  rgba(255,180,150,0.24), transparent 58%),
    linear-gradient(180deg, #f9f5f2, #f6f2ed);
}

h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.022em; line-height: 1.08; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
.num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.eyebrow { font-size: 13px; font-weight: 600; letter-spacing: 0.01em; color: var(--accent); }

/* glass utility */
.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 500; font-size: 16px; line-height: 1;
  padding: 14px 26px; border-radius: 980px; border: 1px solid transparent;
  transition: background .18s, color .18s, border-color .18s, transform .12s, box-shadow .2s;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  color: #fff;
  background: linear-gradient(180deg, #f07a55, var(--accent));
  box-shadow: 0 6px 18px -4px rgba(232,98,58,0.5), inset 0 1px 0 rgba(255,255,255,0.4);
}
.btn-primary:hover { background: linear-gradient(180deg, #e96840, var(--accent-press)); }
.btn-glass {
  color: var(--ink);
  background: var(--glass-bg-strong);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  box-shadow: var(--glass-shadow);
}
.btn-glass:hover { background: linear-gradient(150deg, rgba(255,255,255,0.9), rgba(255,255,255,0.62)); }
.btn-link { color: var(--accent); background: none; padding: 14px 8px; }
.btn-link:hover { color: var(--accent-press); }
.btn-lg { font-size: 17px; padding: 16px 32px; }
.btn-block { width: 100%; }
.btn-sm { font-size: 14px; padding: 9px 18px; }

/* ============ Nav (floating glass pill) ============ */
.nav { position: sticky; top: 14px; z-index: 50; padding: 0 18px; }
.nav-inner {
  max-width: 1040px; margin: 0 auto; height: 58px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 12px 0 20px; border-radius: 980px;
  background: var(--glass-bg-strong);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: box-shadow .3s;
}
.logo { display: flex; align-items: center; gap: 9px; font-weight: 600; font-size: 17px; letter-spacing: -0.02em; }
.logo-mark {
  width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center;
  background: linear-gradient(180deg, #f07a55, var(--accent)); color: #fff; font-size: 15px; font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.5), 0 2px 8px -2px rgba(232,98,58,0.6);
}
.logo .esc { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { font-size: 14px; color: var(--muted); transition: color .15s; }
.nav-links a:hover { color: var(--ink); }
.nav-cta { display: flex; align-items: center; gap: 8px; }

/* ============ Hero ============ */
.hero { padding: 88px 0 86px; text-align: center; }
.hero-inner { max-width: 840px; margin: 0 auto; }
.hero .eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 22px;
  padding: 8px 16px; border-radius: 980px;
  background: var(--glass-bg-strong);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border); box-shadow: var(--glass-shadow);
  color: var(--muted); font-weight: 500;
}
.hero .eyebrow b { color: var(--accent); font-weight: 600; }
.hero h1 { font-size: clamp(42px, 6.6vw, 80px); letter-spacing: -0.04em; line-height: 1.03; }
.hero h1 .hl {
  background: linear-gradient(120deg, #E8623A, #E08850 55%, #F5A060);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { color: var(--muted); font-size: clamp(18px, 2.2vw, 22px); line-height: 1.45; max-width: 600px; margin: 26px auto 0; font-weight: 400; }
.hero-sub b { color: var(--ink); font-weight: 600; }
.hero-cta { display: flex; gap: 12px; justify-content: center; align-items: center; margin-top: 38px; flex-wrap: wrap; }
.hero-price { margin-top: 28px; font-size: 15px; color: var(--faint); display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: center; }
.hero-price .pp { color: var(--ink); font-weight: 600; }
.hero-price .strike { text-decoration: line-through; }
.trust-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 54px; max-width: 760px; margin-left: auto; margin-right: auto; }
.trust-row .t {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--muted);
  padding: 9px 15px; border-radius: 980px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border); box-shadow: var(--glass-shadow);
}
.trust-row .t .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); }

/* ============ Section scaffold ============ */
.block { padding: 96px 0; }
.block-head { max-width: 640px; }
.block-head.center { margin: 0 auto; text-align: center; }
.block-head .eyebrow { display: block; margin-bottom: 14px; }
.block-head h2 { font-size: clamp(30px, 4vw, 46px); letter-spacing: -0.03em; }
.block-head p { color: var(--muted); font-size: 19px; margin-top: 18px; line-height: 1.5; font-weight: 400; }

/* ============ Comparison (inside glass panel) ============ */
.cmp { margin-top: 50px; border-radius: var(--radius-lg); padding: 14px 30px 24px;
  background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border); box-shadow: var(--glass-shadow); }
.cmp-row { display: grid; grid-template-columns: 1.25fr 1fr 1fr 1fr; align-items: center; border-bottom: 1px solid var(--line-soft); }
.cmp-row:last-child { border-bottom: none; }
.cmp-row.cmp-head { border-bottom: 1px solid var(--line); }
.cmp-cell { padding: 18px 16px; font-size: 15px; color: var(--muted); }
.cmp-cell.feat { color: var(--ink); font-weight: 500; }
.cmp-head .cmp-cell { font-weight: 600; color: var(--faint); font-size: 13px; }
.cmp-head .cmp-col-us { color: var(--accent); }
.cmp-col-us .cmp-best { color: var(--ink); font-weight: 600; }
.cmp-val { display: inline-flex; align-items: center; gap: 8px; }
.tick { color: var(--accent); font-weight: 700; font-size: 13px; }
.cross { color: rgba(0,0,0,0.2); font-weight: 700; }

/* ============ Pricing ============ */
.plan-wrap { max-width: 470px; margin: 50px auto 0; }
.plan-card { position: relative; border-radius: var(--radius-lg); padding: 40px; text-align: left;
  background: var(--glass-bg-strong); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border); box-shadow: var(--glass-shadow); overflow: hidden; }
.plan-card::before { content:""; position:absolute; left:0; right:0; top:0; height:4px;
  background: linear-gradient(90deg, #E8623A, #F5A060, #F5C080); opacity: 0.9; }
.plan-top { display: flex; align-items: center; justify-content: space-between; }
.plan-card h3 { font-size: 21px; font-weight: 600; }
.plan-tag { font-size: 12px; font-weight: 600; color: var(--accent); padding: 6px 12px; border-radius: 980px; background: rgba(232,98,58,0.12); }
.plan-desc { color: var(--muted); font-size: 15px; margin-top: 8px; }
.plan-price { display: flex; align-items: baseline; gap: 4px; margin: 26px 0 2px; }
.plan-price .cny { font-size: 30px; font-weight: 600; }
.plan-price .amt { font-size: 64px; font-weight: 600; letter-spacing: -0.04em; line-height: 1; }
.plan-price .per { color: var(--muted); font-size: 17px; margin-left: 6px; }
.plan-usd { color: var(--faint); font-size: 14px; }
.feat-list { list-style: none; padding: 0; margin: 26px 0; display: flex; flex-direction: column; gap: 14px; }
.feat-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: var(--ink); line-height: 1.45; }
.feat-list .ic { flex: none; width: 20px; height: 20px; display: grid; place-items: center; color: #fff; background: var(--accent); border-radius: 50%; font-size: 11px; margin-top: 1px; }
.plan-note { font-size: 13px; color: var(--faint); margin-top: 16px; text-align: center; }

.pay-row { max-width: 760px; margin: 44px auto 0; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 12px 16px; }
.pay-pill { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500; color: var(--ink); padding: 10px 16px; border-radius: 980px;
  background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: var(--glass-border); box-shadow: var(--glass-shadow); }
.pay-pill .sq { width: 14px; height: 14px; border-radius: 4px; }
.pay-note { width: 100%; text-align: center; font-size: 13.5px; color: var(--muted); margin-top: 4px; }
.pay-note b { color: var(--green); font-weight: 600; }
.pay-note .warn { color: var(--accent); }

.guarantee-row { max-width: 900px; margin: 50px auto 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.guarantee-row .g { padding: 26px 24px; border-radius: var(--radius); text-align: center;
  background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: var(--glass-border); box-shadow: var(--glass-shadow); }
.guarantee-row .g b { display: block; font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.guarantee-row .g span { color: var(--muted); font-size: 14px; line-height: 1.5; }

/* ============ Steps ============ */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 50px; }
.step { padding: 30px 28px; border-radius: var(--radius);
  background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: var(--glass-border); box-shadow: var(--glass-shadow); }
.step .n { font-size: 14px; font-weight: 600; color: var(--accent); }
.step h4 { font-size: 19px; font-weight: 600; margin: 14px 0 10px; }
.step p { color: var(--muted); font-size: 15px; line-height: 1.55; }

/* ============ FAQ ============ */
.faq { margin-top: 46px; max-width: 760px; margin-left: auto; margin-right: auto; border-radius: var(--radius-lg); padding: 6px 30px;
  background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: var(--glass-border); box-shadow: var(--glass-shadow); }
.faq-item { border-bottom: 1px solid var(--line-soft); }
.faq-item:last-child { border-bottom: none; }
.faq-q { display: flex; align-items: center; justify-content: space-between; gap: 18px; width: 100%; text-align: left; background: none; border: none; color: var(--ink); padding: 24px 2px; font-size: 17px; font-weight: 500; letter-spacing: -0.01em; }
.faq-q .pm { flex: none; width: 24px; height: 24px; position: relative; color: var(--faint); transition: transform .3s ease, color .2s; }
.faq-q .pm::before, .faq-q .pm::after { content: ""; position: absolute; left: 50%; top: 50%; background: currentColor; }
.faq-q .pm::before { width: 13px; height: 1.6px; transform: translate(-50%,-50%); }
.faq-q .pm::after { width: 1.6px; height: 13px; transform: translate(-50%,-50%); }
.faq-item.open .pm { transform: rotate(135deg); color: var(--accent); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .32s ease; }
.faq-a .inner { padding: 0 2px 24px; color: var(--muted); font-size: 16px; line-height: 1.65; }

/* ============ Contact / CTA ============ */
.contact-card { border-radius: var(--radius-lg); padding: 52px; display: grid; grid-template-columns: 1fr auto; gap: 56px; align-items: center;
  background: var(--glass-bg-strong); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: var(--glass-border); box-shadow: var(--glass-shadow); }
.contact-card h2 { font-size: clamp(28px, 4vw, 44px); letter-spacing: -0.03em; }
.contact-card p { color: var(--muted); font-size: 18px; margin: 16px 0 28px; max-width: 440px; line-height: 1.5; }
.contact-card .hero-cta { justify-content: flex-start; margin-top: 0; }
.qr-box { display: grid; place-items: center; gap: 14px; }
.qr { width: 168px; height: 168px; border-radius: 20px; padding: 12px; background: rgba(255,255,255,0.85); box-shadow: var(--glass-shadow); }
.qr-ph { width: 100%; height: 100%; border-radius: 10px; background-image: repeating-linear-gradient(45deg, rgba(0,0,0,0.16) 0 6px, transparent 6px 12px); background-color: rgba(255,255,255,0.6); display: grid; place-items: center; }
.qr-ph span { font-size: 11px; color: var(--muted); background: rgba(255,255,255,0.9); padding: 3px 7px; border-radius: 5px; }
.qr-label { font-size: 13px; color: var(--muted); }

/* ============ Footer ============ */
.footer { padding: 40px 0; margin-top: 20px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 18px; flex-wrap: wrap; }
.footer .muted { color: var(--faint); font-size: 13px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--muted); font-size: 13px; }
.footer-links a:hover { color: var(--ink); }

/* ============ Modal ============ */
.overlay { position: fixed; inset: 0; z-index: 100; display: none; place-items: center; padding: 22px;
  background: rgba(40,44,60,0.28); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.overlay.show { display: grid; animation: fade .2s ease; }
@keyframes fade { from { opacity: 0; } }
.modal { width: 440px; max-width: 100%; border-radius: var(--radius-lg); padding: 30px; position: relative;
  background: linear-gradient(150deg, rgba(255,255,255,0.92), rgba(255,255,255,0.78));
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  box-shadow: 0 30px 80px -18px rgba(28,40,90,0.4), inset 0 1px 0 rgba(255,255,255,0.9);
  animation: pop .26s cubic-bezier(.2,.9,.3,1.1); }
@keyframes pop { from { opacity: 0; transform: translateY(10px) scale(.98); } }
.modal-x { position: absolute; top: 18px; right: 18px; width: 30px; height: 30px; border-radius: 50%; background: rgba(0,0,0,0.05); border: none; color: var(--muted); font-size: 15px; display: grid; place-items: center; transition: background .15s; }
.modal-x:hover { background: rgba(0,0,0,0.1); color: var(--ink); }
.modal h3 { font-size: 22px; font-weight: 600; }
.modal-sub { color: var(--muted); font-size: 14.5px; margin: 8px 0 22px; line-height: 1.5; }
.modal-price-strip { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; border-radius: 14px; background: rgba(232,98,58,0.08); margin-bottom: 20px; }
.modal-price-strip .l { color: var(--muted); font-size: 14px; }
.modal-price-strip .r { font-weight: 600; font-size: 22px; }
.modal-price-strip .r small { color: var(--muted); font-size: 14px; font-weight: 400; }
.pay-opts { display: flex; flex-direction: column; gap: 10px; }
.pay-opt { display: flex; align-items: center; gap: 14px; width: 100%; text-align: left; padding: 14px 16px; border-radius: 16px; border: 1px solid var(--line); background: rgba(255,255,255,0.5); color: var(--ink); transition: border-color .15s, background .15s, transform .12s; }
.pay-opt:hover { border-color: var(--accent); background: rgba(255,255,255,0.8); transform: translateX(2px); }
.pay-opt .picon { flex: none; width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; font-weight: 700; font-size: 14px; color: #fff; }
.pay-opt .pt { font-weight: 600; font-size: 15.5px; display: block; }
.pay-opt .ps { color: var(--muted); font-size: 13px; margin-top: 2px; display: block; }
.pay-opt .badge-free { margin-left: auto; font-size: 12px; font-weight: 600; color: var(--green); }
.pay-opt .badge-fee { margin-left: auto; font-size: 12px; font-weight: 600; color: var(--accent); }
.modal-back { background: none; border: none; color: var(--muted); font-size: 14px; display: inline-flex; align-items: center; gap: 6px; padding: 0; margin-bottom: 14px; }
.modal-back:hover { color: var(--ink); }
.modal-qr { display: grid; place-items: center; gap: 14px; padding: 6px 0; }
.modal-steps { margin-top: 20px; display: flex; flex-direction: column; gap: 11px; }
.modal-steps .ms { display: flex; gap: 10px; font-size: 14px; color: var(--muted); line-height: 1.5; }
.modal-steps .ms b { color: var(--ink); font-weight: 600; flex: none; }
.hidden { display: none !important; }

/* ============ Reveal (transform-only) ============ */
.reveal { opacity: 1; }
@media (prefers-reduced-motion: no-preference) {
  .reveal.in { animation: revUp .7s cubic-bezier(.2,.7,.2,1) both; }
}
@keyframes revUp { from { transform: translateY(16px); } to { transform: none; } }

/* ============ Responsive ============ */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .cmp-row { grid-template-columns: 1.3fr 1fr 1fr; }
  .cmp-col-hide { display: none; }
  .guarantee-row { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .contact-card { grid-template-columns: 1fr; text-align: center; justify-items: center; gap: 34px; padding: 38px; }
  .contact-card .hero-cta { justify-content: center; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 20px; }
  .block { padding: 66px 0; }
  .hero { padding: 56px 0 60px; }
  .plan-card { padding: 30px; }
  .cmp { padding: 8px 18px 16px; }
  .faq { padding: 4px 20px; }
  .nav-cta .btn-glass { display: none; }
}