.tool-hero {
	padding: clamp(1.75rem, 4vw, 2.75rem) 0 clamp(1.5rem, 3vw, 2.25rem);
	background: linear-gradient(180deg, rgba(18, 196, 200, 0.1), rgba(18, 196, 200, 0.03) 55%, #fff 100%);
	border-bottom: 1px solid var(--line);
}
.tool-hero h1 {
	font-size: clamp(1.85rem, 3.2vw, 2.65rem);
	line-height: 1.12;
	letter-spacing: -0.035em;
	margin: 0.7rem 0 0;
}
.tool-hero__row {
	display: flex;
	justify-content: space-between;
	align-items: flex-end;
	gap: 1.5rem;
}
.tool-hero__lead { max-width: 36rem; margin-top: 0.75rem; color: var(--muted); font-size: 1.05rem; }
.tool-hero__count {
	flex: none;
	margin: 0;
	padding: 0.45rem 0.8rem;
	border: 1px solid var(--line);
	border-radius: 999px;
	background: #fff;
	color: var(--ink);
	font-size: 0.82rem;
	font-weight: 700;
}
.tool-nav {
	position: sticky;
	top: calc(var(--header-h) + 1rem);
	display: flex;
	flex-direction: column;
	gap: 0.1rem;
	max-height: calc(100vh - var(--header-h) - 2rem);
	overflow: auto;
	padding: 0.4rem;
	border: 1px solid var(--line);
	border-radius: 16px;
	background: #fff;
	scrollbar-width: thin;
}
.tool-nav a {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.65rem;
	padding: 0.48rem 0.65rem;
	border-radius: 10px;
	color: var(--ink-2);
	font-size: 0.84rem;
	font-weight: 650;
	line-height: 1.25;
}
.tool-nav a:hover,
.tool-nav a.is-active { background: var(--teal-soft); color: var(--teal-deep); }
.tool-nav__count {
	flex: none;
	min-width: 1.35rem;
	color: var(--muted);
	font-size: 0.72rem;
	font-weight: 700;
	text-align: right;
}
.tool-nav a.is-active .tool-nav__count { color: var(--teal-deep); }
.tool-breadcrumb {
	display: flex;
	flex-wrap: wrap;
	gap: 0.45rem;
	align-items: center;
	color: var(--muted);
	font-size: 0.82rem;
	margin-bottom: 1.25rem;
}
.tool-breadcrumb a:hover { color: var(--teal-deep); }

.tool-ad {
	width: min(1160px, calc(100% - 2.4rem));
	margin: 1.25rem auto;
	min-height: 90px;
	display: grid;
	place-items: center;
	border: 1px dashed rgba(7, 21, 37, 0.18);
	border-radius: 14px;
	background: var(--paper);
	color: var(--muted);
	font-size: 0.75rem;
	font-weight: 700;
	letter-spacing: 0.12em;
	text-transform: uppercase;
}
.tool-app { padding: 0.5rem 0 1rem; }
.tool-app main { max-width: 1160px; }
.tool-note {
	width: min(1160px, calc(100% - 2.4rem));
	margin: 0 auto 1rem;
	color: var(--muted);
	font-size: 0.82rem;
}
.tool-index {
	display: grid;
	grid-template-columns: 228px minmax(0, 1fr);
	gap: 1.75rem;
	align-items: start;
	padding-top: 1.6rem;
	padding-bottom: 3.5rem;
}
.tool-group { scroll-margin-top: calc(var(--header-h) + 1.25rem); padding-top: 0.35rem; }
.tool-group + .tool-group { margin-top: 1.6rem; }
.tool-group__head {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	gap: 1rem;
	margin-bottom: 0.85rem;
	padding-bottom: 0.65rem;
	border-bottom: 1px solid var(--line);
}
.tool-group h2 {
	font-size: clamp(1.2rem, 2vw, 1.45rem);
	letter-spacing: -0.03em;
	margin: 0;
}
.tool-group__head span { color: var(--muted); font-size: 0.82rem; font-weight: 700; }
.tool-index__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.65rem; }
.tool-card {
	display: flex;
	align-items: center;
	gap: 0.85rem;
	min-width: 0;
	padding: 0.9rem 0.95rem;
	border: 1px solid var(--line);
	border-radius: 14px;
	background: #fff;
}
.tool-card:hover { border-color: var(--teal); box-shadow: 0 8px 20px rgba(7, 21, 37, 0.05); }
.tool-card__body { min-width: 0; }
.tool-card h3 { font-size: 0.98rem; letter-spacing: -0.02em; line-height: 1.3; margin: 0 0 0.2rem; }
.tool-card p {
	margin: 0;
	color: var(--muted);
	font-size: 0.8rem;
	line-height: 1.4;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}
.tool-card__go {
	flex: none;
	color: var(--teal-deep);
	font-size: 0.75rem;
	font-weight: 700;
}
.tool-related { padding: 0.5rem 0 3rem; }
.tool-related .tool-group__head a { color: var(--teal-deep); font-size: 0.82rem; font-weight: 700; }
.tool-related .tool-group__head a:hover { color: var(--ink); }
.tool-related__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.65rem; }
.tool-seo {
	width: min(1160px, calc(100% - 2.4rem));
	margin: 0.5rem auto 0;
	padding-top: 1.25rem;
	border-top: 1px solid var(--line);
}
.tool-seo h2 { font-size: 1.35rem; letter-spacing: -0.03em; margin: 0 0 0.45rem; }
.tool-seo h3 { font-size: 1.05rem; letter-spacing: -0.02em; margin: 1.2rem 0 0.35rem; }
.tool-seo p { color: var(--muted); max-width: 42rem; }
.tool-seo ol, .tool-seo ul { margin: 0.35rem 0 0.2rem 1.15rem; max-width: 42rem; color: var(--muted); }
.tool-seo li { margin: 0.28rem 0; }
@media (max-width: 900px) {
	.tool-index { grid-template-columns: 1fr; gap: 1rem; padding-top: 0; }
	.tool-nav {
		top: var(--header-h);
		z-index: 20;
		flex-direction: row;
		gap: 0.35rem;
		max-height: none;
		overflow-x: auto;
		overflow-y: hidden;
		scrollbar-width: none;
		margin-inline: calc(50% - 50vw);
		padding: 0.55rem max(1.1rem, calc(50vw - 580px + 1.1rem));
		border-width: 0 0 1px;
		border-radius: 0;
		background: rgba(255, 255, 255, 0.96);
		backdrop-filter: blur(10px);
	}
	.tool-nav::-webkit-scrollbar { display: none; }
	.tool-nav a { flex: none; padding: 0.42rem 0.7rem; background: var(--paper); }
	.tool-group { scroll-margin-top: calc(var(--header-h) + 3.6rem); }
}
@media (max-width: 640px) {
	.tool-hero h1 { font-size: clamp(1.55rem, 7vw, 1.9rem); }
	.tool-hero__row { align-items: flex-start; flex-direction: column; gap: 0.85rem; }
	.tool-index__grid,
	.tool-related__grid { grid-template-columns: 1fr; }
}