:root {
  --bg: #fff7f2;
  --bg-2: #ffe8dc;
  --ink: #1c2430;
  --muted: #5b6777;
  --card: #ffffff;
  --line: #efd5c8;
  --teal: #0f8f8a;
  --teal-dark: #0b6f6b;
  --coral: #ff6b57;
  --coral-soft: #ffd2cb;
  --mint: #dff7f3;
  --shadow: 0 18px 50px rgba(28, 36, 48, 0.08);
  --radius: 22px;
  --font: "Segoe UI", "Trebuchet MS", Candara, Calibri, sans-serif;
  --display: Georgia, "Palatino Linotype", Palatino, serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, #ffd7c8 0%, transparent 55%),
    radial-gradient(900px 420px at 100% 0%, #c8f3ee 0%, transparent 50%),
    var(--bg);
  line-height: 1.55;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--teal-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; }

.site-header {
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: blur(12px);
  background: rgba(255, 247, 242, 0.88);
  border-bottom: 1px solid rgba(239, 213, 200, 0.8);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 0.85rem 0;
}
.brand {
  display: flex; align-items: center; gap: 0.7rem;
  color: var(--ink); font-weight: 700; text-decoration: none;
}
.brand img { width: 42px; height: 42px; border-radius: 12px; }
.brand span { font-size: 1.05rem; }
.nav-links { display: flex; flex-wrap: wrap; gap: 0.55rem; }
.nav-links a {
  padding: 0.45rem 0.8rem; border-radius: 999px;
  color: var(--muted); font-size: 0.92rem; text-decoration: none;
  border: 1px solid transparent;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--teal-dark); background: var(--mint); border-color: #b9e8e1;
}

.hero {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 1.5rem;
  padding: 1.6rem 0 1rem; align-items: stretch;
}
.hero-copy h1 {
  font-family: var(--display);
  font-size: clamp(1.7rem, 3.4vw, 2.55rem);
  line-height: 1.15; margin: 0 0 0.75rem;
}
.hero-copy p { color: var(--muted); margin: 0 0 1rem; font-size: 1.02rem; }
.trust-row {
  display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 0.9rem;
}
.pill {
  font-size: 0.78rem; padding: 0.35rem 0.7rem; border-radius: 999px;
  background: #fff; border: 1px solid var(--line); color: var(--muted);
}
.pill.good { background: var(--mint); border-color: #b5e6df; color: var(--teal-dark); }

.hero-visual {
  border-radius: calc(var(--radius) + 6px);
  overflow: hidden; box-shadow: var(--shadow);
  border: 1px solid var(--line); background: #fff;
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; min-height: 280px; }

.tool-shell {
  margin: 0.4rem 0 2rem;
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 1rem;
}
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.tool-card, .log-card { padding: 1.15rem 1.2rem 1.25rem; }
.card h2 {
  margin: 0 0 0.35rem; font-size: 1.2rem; font-family: var(--display);
}
.card .sub { margin: 0 0 1rem; color: var(--muted); font-size: 0.92rem; }

.notice {
  background: #fff4ef; border: 1px solid var(--coral-soft);
  color: #8a3d32; border-radius: 14px; padding: 0.7rem 0.85rem;
  font-size: 0.88rem; margin-bottom: 1rem;
}

.form-grid { display: grid; gap: 0.8rem; }
label { display: grid; gap: 0.35rem; font-size: 0.86rem; font-weight: 600; }
input[type="text"], input[type="tel"], select {
  width: 100%; border: 1px solid var(--line); border-radius: 14px;
  padding: 0.78rem 0.9rem; font: inherit; background: #fffaf7;
  color: var(--ink);
}
input:focus, select:focus {
  outline: 2px solid rgba(15, 143, 138, 0.28); border-color: var(--teal);
}
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.phone-row { display: grid; grid-template-columns: 84px 1fr; gap: 0.55rem; }
.prefix {
  display: grid; place-items: center; border-radius: 14px;
  background: var(--mint); border: 1px solid #b9e8e1; font-weight: 700;
}

.check {
  display: flex; gap: 0.55rem; align-items: flex-start;
  font-weight: 500; color: var(--muted); font-size: 0.88rem;
}
.check input { margin-top: 0.2rem; }

.actions { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-top: 0.3rem; }
.btn {
  border: 0; border-radius: 999px; padding: 0.78rem 1.15rem;
  font: inherit; font-weight: 700; cursor: pointer;
}
.btn-primary { background: var(--coral); color: #fff; }
.btn-primary:hover { background: #ef5845; }
.btn-primary:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-ghost {
  background: #fff; color: var(--ink); border: 1px solid var(--line);
}
.btn-soft { background: var(--teal); color: #fff; }
.btn-soft:hover { background: var(--teal-dark); }

.stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.55rem;
  margin-bottom: 0.8rem;
}
.stat {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: 14px; padding: 0.65rem 0.7rem;
}
.stat b { display: block; font-size: 1.05rem; }
.stat span { color: var(--muted); font-size: 0.75rem; }

.log-box {
  height: 280px; overflow: auto; border-radius: 16px;
  background: #17212b; color: #d7ffe9; padding: 0.85rem;
  font-family: Consolas, "Courier New", monospace; font-size: 0.82rem;
}
.log-box div { margin-bottom: 0.35rem; opacity: 0.95; }
.log-box .sys { color: #8ad7ff; }
.log-box .wave { color: #ffd29c; }
.log-box .ok { color: #7dffb3; }

.tools {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
  margin: 0.5rem 0 2rem;
}
.tool-link {
  display: grid; gap: 0.55rem; padding: 1rem; text-decoration: none;
  color: inherit; transition: transform 0.15s ease;
}
.tool-link:hover { transform: translateY(-3px); text-decoration: none; }
.tool-link img {
  width: 72px; height: 72px; border-radius: 18px; object-fit: cover;
}
.tool-link h3 { margin: 0; font-size: 1.05rem; }
.tool-link p { margin: 0; color: var(--muted); font-size: 0.9rem; }

.content {
  background: rgba(255,255,255,0.72);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  padding: 1.35rem 1.35rem 1.8rem;
  margin-bottom: 2rem;
}
.content h2 {
  font-family: var(--display); font-size: 1.35rem;
  margin: 1.6rem 0 0.55rem; scroll-margin-top: 84px;
}
.content h3 { margin: 1rem 0 0.4rem; font-size: 1.02rem; }
.content p { color: #334155; }
.content ul, .content ol { color: #334155; padding-left: 1.2rem; }
.content table {
  width: 100%; border-collapse: collapse; margin: 0.8rem 0 1rem;
  font-size: 0.92rem; overflow: hidden; border-radius: 12px;
}
.content th, .content td {
  border: 1px solid var(--line); padding: 0.65rem 0.7rem; text-align: left;
  vertical-align: top;
}
.content th { background: var(--mint); }
.toc {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: 16px; padding: 0; margin: 0.4rem 0 1.2rem;
  overflow: hidden;
}
.toc > summary {
  list-style: none;
  cursor: pointer;
  font-weight: 700;
  padding: 0.9rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  background: #fff;
}
.toc > summary::-webkit-details-marker { display: none; }
.toc > summary::after {
  content: "▾";
  color: var(--teal-dark);
  font-size: 1rem;
  transition: transform 0.15s ease;
}
.toc[open] > summary::after { transform: rotate(180deg); }
.toc .toc-body { padding: 0 1rem 0.9rem; border-top: 1px solid var(--line); background: var(--bg); }
.toc ol { margin: 0.7rem 0 0; padding-left: 1.2rem; }
.toc a { color: var(--ink); text-decoration: none; }
.toc a:hover { color: var(--teal-dark); text-decoration: underline; }

.faq details {
  border: 1px solid var(--line); border-radius: 14px;
  padding: 0.75rem 0.9rem; margin-bottom: 0.55rem; background: #fff;
}
.faq details > summary {
  cursor: pointer; font-weight: 700;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.faq details > summary::-webkit-details-marker { display: none; }
.faq details > summary::after {
  content: "▾";
  color: var(--teal-dark);
  flex-shrink: 0;
  transition: transform 0.15s ease;
}
.faq details[open] > summary::after { transform: rotate(180deg); }
.faq details > p { margin: 0.65rem 0 0; }

.inline-fig {
  display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 1rem;
  align-items: center; margin: 1rem 0;
}
.inline-fig img {
  border-radius: 18px; border: 1px solid var(--line); box-shadow: var(--shadow);
}

.site-footer {
  border-top: 1px solid var(--line); padding: 1.4rem 0 2rem;
  color: var(--muted); font-size: 0.9rem;
}
.footer-grid {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.8rem;
}

.toast {
  position: fixed; right: 1rem; bottom: 1rem; z-index: 50;
  background: var(--ink); color: #fff; padding: 0.75rem 1rem;
  border-radius: 14px; display: none; max-width: min(90vw, 320px);
}
.toast.show { display: block; }

@media (max-width: 900px) {
  .hero, .tool-shell, .tools, .inline-fig { grid-template-columns: 1fr; }
  .stats, .row-2 { grid-template-columns: 1fr; }
  .nav { flex-direction: column; align-items: flex-start; }
}