:root {
  color-scheme: light;
  --page: #f8f8fb;
  --surface: #ffffff;
  --surface-soft: #f2f1fb;
  --surface-blue: #f0f6ff;
  --surface-pink: #fff2f8;
  --surface-mint: #eff9f5;
  --ink: #20212b;
  --muted: #66697a;
  --quiet: #85889a;
  --line: #e6e6ee;
  --line-strong: #d9d9e5;
  --accent: #5d59d9;
  --accent-strong: #4945c5;
  --accent-soft: #eeedff;
  --success: #25866d;
  --shadow-card: 0 7px 24px rgba(38, 39, 74, .055);
  --shadow-search: 0 12px 34px rgba(55, 54, 115, .09);
  --page-width: 1184px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #15161d;
  --surface: #1e2029;
  --surface-soft: #282740;
  --surface-blue: #222d3c;
  --surface-pink: #342631;
  --surface-mint: #20332f;
  --ink: #f1f1f8;
  --muted: #b1b3c2;
  --quiet: #9295a6;
  --line: #30323e;
  --line-strong: #414350;
  --accent: #aaa7ff;
  --accent-strong: #c0bdff;
  --accent-soft: #302f4e;
  --success: #78cdb1;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, .18);
  --shadow-search: 0 12px 34px rgba(0, 0, 0, .25);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { min-width: 320px; scroll-behavior: smooth; background: var(--page); }
body { margin: 0; min-width: 320px; min-height: 100vh; background: var(--page); color: var(--ink); transition: background-color .2s var(--ease), color .2s var(--ease); }
button, input { font: inherit; }
button { color: inherit; }
a { color: inherit; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.icon-library, .visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 72%, white); outline-offset: 3px; }
::selection { background: color-mix(in srgb, var(--accent) 24%, transparent); color: var(--ink); }
.page-width { width: min(100% - 48px, var(--page-width)); margin-inline: auto; }

.topbar { position: sticky; z-index: 20; top: 0; border-bottom: 1px solid color-mix(in srgb, var(--line) 78%, transparent); background: color-mix(in srgb, var(--page) 88%, transparent); backdrop-filter: blur(18px); }
.topbar-inner { display: flex; min-height: 72px; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; min-width: 0; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; }
.brand-mark { display: block; width: 36px; height: 36px; flex: 0 0 auto; }
.brand-name { display: inline-flex; align-items: baseline; gap: 6px; font-size: 15px; font-weight: 760; letter-spacing: -.035em; }
.brand-name span, .footer-brand span { color: var(--accent); font-weight: 620; }
.primary-nav { display: flex; align-items: center; gap: 7px; }
.header-controls { display: flex; flex: 0 0 auto; align-items: center; gap: 7px; }
.nav-link { display: inline-flex; min-height: 40px; align-items: center; justify-content: center; padding: 0 14px; border: 0; border-radius: 12px; background: transparent; color: var(--muted); font-size: 14px; font-weight: 570; line-height: 1; cursor: pointer; transition: color .16s ease, background-color .16s ease; }
.nav-link:hover { background: var(--surface-soft); color: var(--ink); }
.nav-link.is-active { background: var(--accent-soft); color: var(--accent-strong); }
.favorite-nav { display: inline-flex; align-items: center; gap: 8px; line-height: 1; }
.favorite-count { display: inline-grid; min-width: 20px; height: 20px; place-items: center; padding-inline: 5px; border-radius: 99px; background: color-mix(in srgb, var(--ink) 6%, transparent); color: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.nav-link.is-active .favorite-count { background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent-strong); }
.theme-button { display: grid; width: 44px; height: 44px; place-items: center; margin-left: 4px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface); color: var(--muted); cursor: pointer; transition: border-color .16s ease, color .16s ease, background .16s ease; }
.theme-button:hover { border-color: var(--line-strong); color: var(--accent-strong); }
.theme-button svg { width: 18px; height: 18px; }
.language-button { display: inline-flex; min-width: 44px; height: 44px; align-items: center; justify-content: center; padding: 0 9px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--muted); font-size: 12px; font-weight: 650; line-height: 1; white-space: nowrap; text-decoration: none; cursor: pointer; transition: border-color .16s ease, color .16s ease, background .16s ease; }
.language-button:hover { border-color: var(--line-strong); color: var(--accent-strong); }

.hero { display: flex; flex-direction: column; align-items: center; padding: 32px 0 16px; text-align: center; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; margin: 0 0 13px; color: var(--accent-strong); font-size: 14px; font-weight: 620; }
.eyebrow-spark { color: #e59ab7; font-size: 17px; }
.hero h1 { max-width: 100%; margin: 0; color: var(--ink); font-size: clamp(38px, 4vw, 48px); font-weight: 730; letter-spacing: -.06em; line-height: 1.2; }
.hero-description { margin: 10px 0 0; color: var(--muted); font-size: 15px; line-height: 1.65; }
.search-form { display: flex; width: min(100%, 760px); height: 64px; align-items: center; gap: 14px; margin-top: 22px; padding: 0 18px 0 22px; border: 1px solid var(--line-strong); border-radius: 18px; background: var(--surface); box-shadow: var(--shadow-search); transition: border-color .18s ease, box-shadow .18s ease; }
.search-form:focus-within { border-color: color-mix(in srgb, var(--accent) 62%, var(--line)); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 13%, transparent), var(--shadow-search); }
.search-icon { width: 22px; height: 22px; flex: 0 0 auto; color: var(--quiet); }
.search-form input { width: auto; min-width: 0; height: 100%; flex: 1 1 0; margin: 0; padding: 0; appearance: none; -webkit-appearance: none; border: 0; border-radius: 0; outline: 0; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.4; }
.search-form input::placeholder { color: var(--quiet); opacity: 1; }
.search-form input::-webkit-search-cancel-button { display: none; }
.clear-search { display: grid; width: 36px; height: 36px; flex: 0 0 auto; place-items: center; padding: 0; border: 0; border-radius: 10px; background: var(--surface-soft); color: var(--muted); line-height: 1; cursor: pointer; }
.clear-search svg { width: 18px; height: 18px; }
.search-shortcut { display: grid; align-self: center; flex: 0 0 auto; }
kbd { display: grid; min-width: 48px; height: 36px; place-items: center; padding: 0 8px; border: 1px solid var(--line); border-radius: 7px; background: var(--page); color: var(--quiet); font-family: inherit; font-size: 11px; line-height: 1; white-space: nowrap; }
.popular-searches { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px; margin-top: 10px; color: var(--quiet); font-size: 13px; line-height: 1; }
.popular-label { display: inline-flex; align-items: center; line-height: 1; }
.popular-searches button { display: inline-flex; min-height: 28px; align-items: center; justify-content: center; padding: 0 10px; border: 1px solid transparent; border-radius: 99px; background: transparent; color: var(--muted); font-size: 13px; line-height: 1; white-space: nowrap; cursor: pointer; transition: color .16s ease, border-color .16s ease, background .16s ease; }
.popular-searches button:hover { border-color: var(--line); background: var(--surface); color: var(--accent-strong); }

.category-section { padding: 21px 0 10px; }
.section-title { margin: 0; color: var(--ink); font-size: 21px; font-weight: 690; letter-spacing: -.04em; line-height: 1.2; }
.category-nav { display: flex; gap: 10px; margin-top: 15px; padding: 2px 0 8px; overflow-x: auto; overscroll-behavior-inline: contain; scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
.category-pill { display: inline-flex; min-height: 42px; flex: 0 0 auto; align-items: center; gap: 10px; padding: 0 15px; border: 1px solid var(--line); border-radius: 99px; background: var(--surface); color: var(--muted); font-size: 14px; font-weight: 560; line-height: 1; cursor: pointer; transition: border-color .16s ease, background .16s ease, color .16s ease, transform .16s ease; }
.category-pill:hover { transform: translateY(-1px); border-color: color-mix(in srgb, var(--accent) 36%, var(--line)); color: var(--accent-strong); }
.category-pill[aria-pressed="true"] { border-color: var(--accent); background: var(--accent); color: #fff; }
.category-count { color: var(--quiet); font-size: 12px; font-variant-numeric: tabular-nums; }
.category-pill[aria-pressed="true"] .category-count { color: rgba(255, 255, 255, .78); }

.featured-section { padding: 19px 0 20px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; }
.section-eyebrow { margin: 0 0 5px; color: var(--accent-strong); font-size: 13px; font-weight: 650; line-height: 1.2; }
.section-note, .result-count { margin: 0; color: var(--quiet); font-size: 13px; line-height: 1.35; }
.featured-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 17px; }
.featured-card { position: relative; display: flex; min-height: 150px; flex-direction: column; justify-content: space-between; padding: 17px 18px; overflow: hidden; border: 1px solid transparent; border-radius: 19px; color: var(--ink); text-decoration: none; transition: transform .18s var(--ease), border-color .18s ease, box-shadow .18s ease; }
.featured-card:nth-child(3n + 1) { background: var(--surface-soft); }
.featured-card:nth-child(3n + 2) { background: var(--surface-mint); }
.featured-card:nth-child(3n) { background: var(--surface-pink); }
.featured-card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent) 25%, transparent); box-shadow: var(--shadow-card); }
.featured-card-top { display: flex; align-items: center; justify-content: space-between; }
.featured-card .tool-mark { width: 52px; height: 52px; border-radius: 15px; }
.featured-label { padding: 6px 10px; border-radius: 99px; background: color-mix(in srgb, var(--surface) 67%, transparent); color: var(--accent-strong); font-size: 12px; font-weight: 650; }
.featured-copy { display: grid; gap: 6px; padding-top: 16px; padding-right: 30px; }
.featured-copy h3 { margin: 0; overflow: hidden; font-size: 19px; font-weight: 700; letter-spacing: -.03em; line-height: 1.28; text-overflow: ellipsis; white-space: nowrap; }
.featured-copy p { display: -webkit-box; height: 3.2em; margin: 0; overflow: hidden; color: var(--muted); font-size: 14px; line-height: 1.6; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.featured-arrow { position: absolute; right: 18px; bottom: 19px; display: grid; width: 30px; height: 30px; place-items: center; border-radius: 10px; background: color-mix(in srgb, var(--surface) 72%, transparent); color: var(--muted); }
.featured-arrow svg { width: 16px; height: 16px; }

.directory-section { padding: 20px 0 76px; }
.directory-heading { margin-bottom: 18px; }
.directory-heading .section-title { font-size: 24px; }
.tool-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.tool-card { position: relative; display: flex; min-width: 0; min-height: 193px; flex-direction: column; padding: 18px; border: 1px solid var(--line); border-radius: 17px; background: var(--surface); box-shadow: 0 2px 8px rgba(38, 39, 74, .025); transition: border-color .18s ease, transform .18s var(--ease), box-shadow .18s ease; }
.tool-card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 31%, var(--line)); box-shadow: var(--shadow-card); }
.tool-card-head { display: grid; min-height: 44px; grid-template-columns: 44px minmax(0, 1fr); align-items: center; gap: 12px; padding-right: 34px; }
.tool-title-link::after { position: absolute; z-index: 1; inset: 0; content: ""; }
.tool-mark { display: grid; width: 44px; height: 44px; flex: 0 0 auto; place-items: center; overflow: hidden; border: 1px solid #e7e7ed; border-radius: 13px; background: #fff; color: #252633; }
.tool-logo { display: block; width: 28px; height: 28px; object-fit: contain; }
.featured-card .tool-logo { width: 34px; height: 34px; }
.tool-mark.is-fallback { padding: 4px; color: #414252; font-size: 8px; font-weight: 700; line-height: 1.1; text-align: center; overflow-wrap: anywhere; }
.tool-title-link { min-width: 0; color: var(--ink); text-decoration: none; }
.tool-title-link:hover { color: var(--accent-strong); }
.tool-title-link h3 { display: -webkit-box; height: 2.6em; margin: 0; overflow: hidden; font-size: 16px; font-weight: 670; letter-spacing: -.025em; line-height: 1.3; overflow-wrap: anywhere; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.tool-category { display: block; margin-top: 4px; color: var(--quiet); font-size: 12px; line-height: 1.2; }
.favorite-button { position: absolute; z-index: 2; top: 17px; right: 16px; display: grid; width: 34px; height: 34px; place-items: center; border: 1px solid transparent; border-radius: 11px; background: transparent; color: #a1a3b2; cursor: pointer; transition: background .16s ease, color .16s ease, border-color .16s ease; }
.favorite-button:hover { border-color: var(--line); background: var(--page); color: var(--accent); }
.favorite-button svg { width: 18px; height: 18px; }
.favorite-button[aria-pressed="true"] { color: #827fe9; }
.favorite-button[aria-pressed="true"] svg { fill: currentColor; }
.tool-description { display: -webkit-box; height: 3.24em; flex: 0 0 auto; margin: 15px 0 13px; overflow: hidden; color: var(--muted); font-size: 14px; line-height: 1.62; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.tool-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; }
.tool-tag { padding: 5px 8px; border-radius: 7px; background: color-mix(in srgb, var(--page) 82%, var(--surface)); color: var(--quiet); font-size: 11px; line-height: 1; }
.empty-state { padding: 64px 20px 76px; text-align: center; }
.empty-illustration { display: inline-grid; width: 54px; height: 54px; place-items: center; border-radius: 18px; background: var(--accent-soft); color: var(--accent); font-size: 34px; }
.empty-state h3 { margin: 16px 0 6px; font-size: 18px; }
.empty-state p { margin: 0; color: var(--muted); font-size: 14px; }
.reset-button { margin-top: 18px; padding: 10px 16px; border: 0; border-radius: 11px; background: var(--accent); color: #fff; font-size: 14px; font-weight: 600; cursor: pointer; }
.reset-button:hover { background: var(--accent-strong); }

.site-footer { display: flex; min-height: 82px; flex-wrap: wrap; align-items: center; gap: 8px 22px; padding: 18px 0 calc(24px + env(safe-area-inset-bottom, 0px)); border-top: 1px solid var(--line); color: var(--quiet); font-size: 13px; }
.footer-brand { color: var(--ink); font-size: 14px; font-weight: 750; letter-spacing: -.025em; text-decoration: none; }
.site-footer p { margin: 0; }
.privacy-note { margin-left: auto !important; }

.guide-index-section { padding: 26px 0 36px; border-top: 1px solid var(--line); }
.guide-index-heading { align-items: center; }
.guide-index-description { margin: 9px 0 0; color: var(--muted); font-size: 14px; line-height: 1.55; }
.guide-index-all { display: inline-flex; min-height: 42px; align-items: center; padding: 0 12px; border: 1px solid var(--line); border-radius: 11px; color: var(--accent-strong); font-size: 13px; font-weight: 620; text-decoration: none; white-space: nowrap; }
.guide-index-all:hover { border-color: var(--line-strong); background: var(--surface); }
.home-guide-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 9px; margin-top: 13px; }
.guide-index-link { position: relative; display: flex; min-width: 0; min-height: 84px; flex-direction: column; justify-content: center; gap: 6px; padding: 12px 35px 12px 14px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); color: var(--ink); text-decoration: none; transition: border-color .16s ease, background .16s ease; }
.guide-index-link:hover { border-color: color-mix(in srgb, var(--accent) 38%, var(--line)); background: var(--surface-soft); }
.guide-link-kind, .guide-card-kind { color: var(--accent-strong); font-size: 11px; font-weight: 670; line-height: 1.2; }
.guide-index-link-title { display: -webkit-box; overflow: hidden; color: var(--ink); font-size: 13px; font-weight: 610; line-height: 1.42; overflow-wrap: anywhere; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.guide-link-arrow, .guide-card-arrow { position: absolute; right: 14px; bottom: 14px; color: var(--quiet); font-size: 15px; }

.guide-main { min-width: 0; padding-top: 22px; }
.guide-topbar-inner { gap: 18px; }
.guide-nav { display: flex; min-width: 0; align-items: center; gap: 6px; }
.guide-nav a { display: inline-flex; min-height: 44px; align-items: center; padding: 0 11px; border-radius: 11px; color: var(--muted); font-size: 13px; font-weight: 570; text-decoration: none; }
.guide-nav a:hover { background: var(--surface-soft); color: var(--accent-strong); }
.guide-header-controls .theme-button, .guide-header-controls .language-button { min-height: 44px; height: 44px; }
.breadcrumbs { display: flex; min-width: 0; flex-wrap: wrap; align-items: center; gap: 8px; margin: 5px auto 22px; color: var(--quiet); font-size: 12px; line-height: 1.5; overflow-wrap: anywhere; }
.breadcrumbs a { color: var(--muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--accent-strong); text-decoration: underline; }
.breadcrumbs [aria-current="page"] { color: var(--ink); }
.guide-index-header { max-width: 850px; margin: 20px auto 0; }
.guide-index-header h1, .guide-article-header h1 { margin: 0; color: var(--ink); font-size: clamp(30px, 4vw, 42px); font-weight: 730; letter-spacing: -.05em; line-height: 1.2; overflow-wrap: anywhere; }
.guide-index-intro { max-width: 720px; margin: 12px 0 0; color: var(--muted); font-size: 16px; line-height: 1.7; }
.guide-index-date { max-width: 850px; margin: 17px auto 0; color: var(--quiet); font-size: 12px; }
.guide-card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 22px auto 64px; }
.guide-card { position: relative; display: flex; min-width: 0; min-height: 172px; flex-direction: column; gap: 8px; padding: 18px 44px 18px 19px; border: 1px solid var(--line); border-radius: 17px; background: var(--surface); color: var(--ink); text-decoration: none; transition: border-color .16s ease, transform .16s ease, box-shadow .16s ease; }
.guide-card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); box-shadow: var(--shadow-card); }
.guide-card h2 { margin: 0; font-size: 17px; font-weight: 680; letter-spacing: -.025em; line-height: 1.4; overflow-wrap: anywhere; }
.guide-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.58; }
.guide-card-arrow { right: 17px; bottom: 17px; }
.guide-article { width: min(100%, 760px); min-width: 0; margin-inline: auto; padding-bottom: 15px; }
.guide-article-header { padding: 5px 0 17px; }
.guide-article-header .guide-card-kind { margin: 0 0 9px; font-size: 12px; }
.guide-article-header h1 { font-size: clamp(30px, 4.2vw, 40px); }
.guide-takeaway { margin: 16px 0 0; padding: 15px 17px; border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--line)); border-radius: 14px; background: var(--surface-soft); color: var(--ink); font-size: 15px; font-weight: 540; line-height: 1.7; }
.guide-reviewed { display: flex; align-items: center; gap: 8px; margin: 14px 0 0; color: var(--quiet); font-size: 12px; }
.editorial-note { margin: 7px 0 0; color: var(--quiet); font-size: 12px; line-height: 1.65; }
.guide-tool-section { margin: 3px 0 27px; padding: 16px 0 0; border-top: 1px solid var(--line); }
.guide-tool-section h2 { margin: 0 0 10px; color: var(--quiet); font-size: 12px; font-weight: 620; }
.guide-tool-list { display: flex; flex-wrap: wrap; gap: 8px; }
.guide-tool-link { display: inline-flex; min-height: 46px; align-items: center; gap: 8px; padding: 5px 10px 5px 6px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink); font-size: 12px; font-weight: 620; text-decoration: none; }
.guide-tool-link:hover { border-color: var(--line-strong); color: var(--accent-strong); }
.guide-tool-mark { display: grid; width: 32px; height: 32px; place-items: center; overflow: hidden; border-radius: 9px; background: #fff; }
.guide-tool-mark img { display: block; width: 24px; height: 24px; object-fit: contain; }
.guide-section { min-width: 0; margin: 0 0 26px; }
.guide-section h2, .guide-related h2 { margin: 0 0 10px; color: var(--ink); font-size: 20px; font-weight: 690; letter-spacing: -.035em; line-height: 1.35; overflow-wrap: anywhere; }
.guide-section p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.8; overflow-wrap: anywhere; }
.guide-section p + p { margin-top: 10px; }
.guide-steps { display: grid; gap: 0; margin: 14px 0 0; padding: 0; list-style: none; counter-reset: guide-step; }
.guide-steps li { position: relative; min-width: 0; padding: 0 0 22px 43px; counter-increment: guide-step; }
.guide-steps li::before { position: absolute; top: 0; left: 0; display: grid; width: 28px; height: 28px; place-items: center; border-radius: 9px; background: var(--accent-soft); color: var(--accent-strong); content: counter(guide-step); font-size: 12px; font-weight: 680; }
.guide-steps li::after { position: absolute; top: 31px; bottom: 0; left: 13px; width: 1px; background: var(--line); content: ""; }
.guide-steps li:last-child::after { display: none; }
.guide-steps h3 { margin: 2px 0 7px; font-size: 15px; font-weight: 670; line-height: 1.5; }
.guide-step-body { color: var(--muted); font-size: 14px; line-height: 1.78; white-space: pre-wrap; overflow-wrap: anywhere; }
.guide-cautions { display: grid; gap: 8px; margin: 10px 0 0; padding-left: 21px; color: var(--muted); font-size: 14px; line-height: 1.7; }
.guide-comparison { margin-top: 4px; }
.guide-table-scroll { max-width: 100%; margin-top: 13px; overflow-x: auto; overscroll-behavior-inline: contain; border: 1px solid var(--line); border-radius: 13px; background: var(--surface); scrollbar-color: var(--line-strong) transparent; }
.guide-table-hint { display: none; margin: 8px 0 0 !important; color: var(--quiet) !important; font-size: 11px !important; line-height: 1.4 !important; }
.guide-table-scroll:focus-visible { outline-offset: 2px; }
.guide-table-scroll table { width: 100%; min-width: 660px; border-collapse: collapse; color: var(--muted); font-size: 13px; line-height: 1.65; }
.guide-table-scroll th, .guide-table-scroll td { padding: 13px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.guide-table-scroll th { background: var(--surface-soft); color: var(--ink); font-size: 12px; font-weight: 680; }
.guide-table-scroll td:first-child { color: var(--ink); font-weight: 680; white-space: nowrap; }
.guide-table-scroll tr:last-child td { border-bottom: 0; }
.guide-citation { margin-inline: 1px; font-size: .76em; line-height: 0; vertical-align: super; }
.guide-citation a { color: var(--accent-strong); font-weight: 650; text-decoration: none; }
.guide-citation a:hover { text-decoration: underline; }
.guide-faq details { border-bottom: 1px solid var(--line); }
.guide-faq details:first-of-type { border-top: 1px solid var(--line); }
.guide-faq summary { padding: 14px 2px; color: var(--ink); font-size: 14px; font-weight: 640; line-height: 1.6; cursor: pointer; }
.guide-faq-answer { padding: 0 2px 15px; color: var(--muted); font-size: 14px; line-height: 1.75; overflow-wrap: anywhere; }
.guide-sources { margin-top: 31px; padding-top: 18px; border-top: 1px solid var(--line); }
.guide-sources h2 { font-size: 16px; }
.guide-sources ol { display: grid; gap: 8px; margin: 10px 0 0; padding: 0; list-style: none; }
.guide-sources li { display: grid; min-width: 0; grid-template-columns: auto minmax(0, 1fr); align-items: baseline; gap: 5px 8px; color: var(--muted); font-size: 12px; line-height: 1.6; }
.guide-source-number { color: var(--accent-strong); font-variant-numeric: tabular-nums; }
.guide-sources li a { color: var(--muted); overflow-wrap: anywhere; }
.guide-sources li a:hover { color: var(--accent-strong); }
.guide-source-domain { grid-column: 2; color: var(--quiet); font-size: 10px; overflow-wrap: anywhere; }
.guide-related { width: min(100%, 760px); margin: 0 auto 54px; padding-top: 22px; border-top: 1px solid var(--line); }
.guide-related h2 { font-size: 17px; }
.guide-related-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
.guide-related-link { display: grid; min-width: 0; gap: 6px; padding: 13px 14px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface); text-decoration: none; }
.guide-related-link:hover { border-color: var(--line-strong); }
.guide-related-link span { color: var(--accent-strong); font-size: 10px; font-weight: 650; }
.guide-related-link strong { color: var(--ink); font-size: 12px; font-weight: 600; line-height: 1.5; overflow-wrap: anywhere; }
.guide-footer { width: min(100% - 48px, 760px); margin-inline: auto; }
.guide-footer-index { color: var(--quiet); font-size: 12px; text-decoration: none; }
.guide-footer-index:hover { color: var(--accent-strong); }

@media (max-width: 1040px) {
  .page-width { width: min(100% - 40px, var(--page-width)); }
  .tool-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .tool-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .page-width { width: min(100% - 36px, var(--page-width)); }
  .topbar-inner { display: grid; min-height: 66px; grid-template-columns: minmax(0, 1fr) auto; gap: 0 8px; padding-block: 8px; }
  .brand-mark { width: 32px; height: 32px; }
  .brand-name { gap: 5px; font-size: 13px; }
  .primary-nav { grid-column: 1 / -1; grid-row: 2; gap: 3px; padding-top: 6px; }
  .nav-link { min-height: 44px; padding: 0 12px; font-size: 13px; }
  .favorite-nav { gap: 5px; }
  .favorite-count { min-width: 18px; height: 18px; padding-inline: 4px; font-size: 10px; }
  .header-controls { grid-column: 2; grid-row: 1; gap: 6px; }
  .theme-button { width: 44px; height: 44px; margin-left: 0; border-radius: 12px; }
  .language-button { min-width: 48px; height: 44px; padding-inline: 9px; }
  .hero { padding: 32px 0 18px; }
  .hero h1 { max-width: 620px; font-size: clamp(36px, 6.6vw, 46px); }
  .hero-description { max-width: 440px; margin-top: 10px; font-size: 14px; }
  .search-form { height: 58px; margin-top: 24px; padding-inline: 16px; border-radius: 16px; }
  .search-form input { font-size: 16px; }
  .clear-search { width: 44px; height: 44px; }
  .popular-searches { gap: 4px; margin-top: 11px; font-size: 12px; }
  .popular-searches button { padding: 5px 8px; font-size: 12px; }
  .category-section { padding-top: 19px; }
  .section-title { font-size: 19px; }
  .category-nav { gap: 8px; margin-top: 12px; }
  .category-pill { min-height: 44px; padding-inline: 13px; font-size: 13px; }
  .featured-section { padding: 20px 0 22px; }
  .featured-grid { gap: 12px; margin-top: 14px; }
  .featured-card { min-height: 150px; padding: 16px; border-radius: 17px; }
  .featured-card .tool-mark { width: 46px; height: 46px; border-radius: 13px; }
  .featured-card .tool-logo { width: 30px; height: 30px; }
  .featured-copy { padding-top: 13px; }
  .featured-copy h3 { font-size: 17px; }
  .featured-copy p { font-size: 13px; }
  .directory-section { padding-top: 17px; padding-bottom: 56px; }
  .directory-heading .section-title { font-size: 22px; }
  .tool-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px; }
  .tool-card { min-height: 190px; padding: 15px; border-radius: 16px; }
  .tool-card-head { grid-template-columns: 42px minmax(0, 1fr); gap: 10px; padding-right: 48px; }
  .tool-mark { width: 42px; height: 42px; border-radius: 12px; }
  .tool-logo { width: 26px; height: 26px; }
  .tool-title-link h3 { font-size: 15px; }
  .tool-category { font-size: 11px; }
  .favorite-button { top: 11px; right: 10px; width: 44px; height: 44px; }
  .tool-description { margin: 13px 0 11px; font-size: 13px; }
  .tool-tag { padding: 5px 7px; font-size: 10px; }
  .site-footer { align-items: flex-start; gap: 6px 15px; font-size: 12px; }
  .privacy-note { width: 100%; margin-left: 0 !important; }
}

@media (max-width: 540px) {
  .page-width { width: min(100% - 32px, var(--page-width)); }
  .hero { padding-top: 28px; }
  .hero h1 { font-size: clamp(34px, 8.8vw, 44px); line-height: 1.22; }
  .hero-description { max-width: 350px; font-size: 13px; }
  .search-shortcut { display: none; }
  .search-form { height: 56px; gap: 11px; }
  .featured-heading .section-note { display: none; }
  .featured-grid { grid-auto-columns: auto; grid-auto-flow: row; grid-template-columns: 1fr; gap: 12px; overflow: visible; padding: 0; scroll-snap-type: none; }
  .featured-card { min-height: 155px; }
  .tool-grid { grid-template-columns: 1fr; }
  .tool-card { min-height: 177px; padding: 16px; }
  .tool-card-head { min-height: 46px; }
  .section-heading { align-items: end; }
  .section-note { max-width: 132px; text-align: right; }
  .result-count { font-size: 12px; }
}

@media (max-width: 380px) {
  .topbar-inner { gap: 0 6px; }
  .brand { gap: 7px; }
  .nav-link { padding-inline: 10px; font-size: 12px; }
}

@media (hover: none) {
  .category-pill:hover, .featured-card:hover, .tool-card:hover { transform: none; }
  .nav-link, .category-pill { min-height: 44px; }
  .language-button, .theme-button { height: 44px; }
  .theme-button { width: 44px; }
  .tool-card-head { padding-right: 48px; }
  .favorite-button { top: 11px; right: 10px; width: 44px; height: 44px; border-radius: 13px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

@media (max-width: 760px) {
  .guide-topbar-inner { display: grid; min-height: 66px; grid-template-columns: minmax(0, 1fr) auto; gap: 0 8px; padding-block: 8px; }
  .guide-nav { grid-column: 1 / -1; grid-row: 2; gap: 2px; padding-top: 5px; }
  .guide-nav a { padding-inline: 11px; font-size: 12px; }
  .guide-header-controls { grid-column: 2; grid-row: 1; gap: 6px; }
  .guide-main { padding-top: 18px; }
  .guide-index-header { margin-top: 12px; }
  .guide-card-grid { gap: 11px; }
  .guide-card { min-height: 166px; padding: 16px 38px 16px 16px; }
  .guide-section h2 { font-size: 19px; }
  .guide-related-grid { gap: 8px; }
  .guide-table-hint { display: block; }
}

@media (max-width: 540px) {
  .guide-index-section { padding: 22px 0 28px; }
  .guide-index-heading { align-items: flex-end; }
  .guide-index-all { min-height: 40px; padding-inline: 9px; font-size: 11px; }
  .guide-index-description { font-size: 13px; }
  .home-guide-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 7px; }
  .guide-index-link { min-height: 82px; padding: 11px 29px 11px 11px; border-radius: 12px; }
  .guide-index-link-title { font-size: 12px; }
  .guide-link-arrow { right: 10px; bottom: 12px; }
  .guide-card-grid { grid-template-columns: 1fr; gap: 10px; margin-bottom: 48px; }
  .guide-card { min-height: 0; padding: 15px 38px 15px 15px; }
  .guide-card h2 { font-size: 16px; }
  .guide-index-intro { font-size: 14px; }
  .guide-article-header h1 { font-size: clamp(29px, 8.2vw, 36px); }
  .guide-takeaway { padding: 13px 14px; font-size: 14px; }
  .guide-section { margin-bottom: 23px; }
  .guide-section p, .guide-step-body { font-size: 13px; }
  .guide-steps li { padding-left: 39px; }
  .guide-related-grid { grid-template-columns: 1fr; }
  .guide-footer { gap: 6px 13px; }
}

@media (max-width: 360px) {
  .guide-nav { gap: 0; }
  .guide-nav a { padding-inline: 9px; font-size: 11px; }
  .guide-index-heading .section-title { max-width: 185px; font-size: 17px; }
  .guide-index-all { white-space: normal; text-align: center; }
}