/* Editorial navigation and the user-provided Research Rakko mascot. */
:root{--research-ink:#16384b;--research-accent:#24677a;--research-paper:#f4f7f5;--research-rule:#d5dfdf}
.wb24-hero{grid-template-columns:minmax(0,1.45fr) minmax(260px,.8fr);gap:48px;align-items:center;padding-block:44px}
.wb24-hero h1{color:var(--research-ink);font-size:clamp(30px,3.8vw,52px);line-height:1.4;letter-spacing:.015em}
.rakko-hero{margin:0;text-align:center;max-width:350px;justify-self:center}
.rakko-hero img{display:block;width:100%;height:auto;max-height:300px;object-fit:contain}
.rakko-hero figcaption{display:grid;gap:5px;margin-top:10px;color:var(--research-ink);font-size:13px}
.rakko-hero figcaption strong{font-size:17px}
.research-stats{display:flex;align-items:center;flex-wrap:wrap;gap:14px 28px;padding:18px 0;border-block:1px solid var(--research-rule);font-size:13px;color:#4c6069}
.research-stats a{margin-left:auto;color:var(--research-accent)}
.reading-paths{margin:46px 0}
.reading-path-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:28px}
.reading-path{border-top:3px solid var(--research-ink);padding-top:15px}
.path-step,.research-label{color:var(--research-accent);font-size:12px;font-weight:700;letter-spacing:.1em;margin:0 0 8px}
.reading-path h3{font-size:20px;line-height:1.5;margin:0 0 12px}
.reading-path ul{list-style:none;margin:0;padding:0}
.reading-path li{border-top:1px solid var(--research-rule)}
.reading-path li a{display:block;padding:13px 0;font-size:15px;line-height:1.8;text-decoration:none;color:var(--research-ink)}
.reading-path a:hover{text-decoration:underline}
.research-answer{margin:22px 0 28px;padding:24px 28px;background:var(--research-paper);border-left:4px solid var(--research-accent)}
.research-answer h2{font-size:21px;margin:0 0 12px;color:var(--research-ink)}
.research-answer>p:not(.research-label){font-size:17px;line-height:1.95;margin:0}
.research-answer nav{display:flex;flex-wrap:wrap;gap:12px 22px;margin-top:18px;font-size:14px}
.research-answer a,.research-hint a{color:var(--research-accent);text-underline-offset:4px}
.research-hint{margin:28px 0;padding:22px 0;border-block:1px solid var(--research-rule);line-height:1.85;font-size:15px}
.research-hint p{margin:8px 0}
.research-guide{display:flex;align-items:center;gap:24px}
.research-guide>img{width:105px;height:105px;object-fit:contain;flex-shrink:0}
.research-guide h2{font-size:20px;margin:0}
.comparison-scroll{overflow-x:auto;overscroll-behavior-inline:contain}
.comparison-table th{position:sticky;top:0;background:#eef4f4;color:var(--research-ink)}
.comparison-table td,.comparison-table th{min-width:140px;line-height:1.8}
.comparison-scroll:focus-visible{outline:2px solid var(--research-accent);outline-offset:4px}
.research-faq details{padding:16px 0;border-top:1px solid var(--research-rule)}
.research-faq summary{cursor:pointer;font-weight:700;line-height:1.8;padding:6px 0}
.wb-media-sprite--iphone{background-image:url('/static/images/illustration-iphone-galaxy.svg')}
.wb24-topic-card,.wb24-pick-card,.wb24-article-card{border-radius:4px;box-shadow:none}
.wb24-topic-visual{max-height:100px}
.article-body section[id],#comparison-heading,#reading-paths,#research-policy{scroll-margin-top:140px}
@media(max-width:760px){
 .wb24-hero{display:grid;grid-template-columns:1fr;gap:20px;padding-block:24px}
 .wb24-hero h1{font-size:34px;line-height:1.45}
 .rakko-hero{display:flex;align-items:center;max-width:100%;gap:12px;text-align:left;justify-self:start}
 .rakko-hero img{width:112px;height:112px}.rakko-hero figcaption{font-size:12px;margin:0}
 .research-stats{gap:10px 18px;font-size:12px}.research-stats a{margin-left:0;width:100%}
 .reading-paths{margin:30px 0}.reading-path-grid{gap:20px}
 .research-answer{padding:18px;margin-block:18px}.research-answer>p:not(.research-label){font-size:16px}
 .research-guide{gap:14px;align-items:flex-start}.research-guide>img{width:72px;height:72px}
 .research-guide h2{font-size:18px}.research-hint{font-size:14px}
}

/* Shared guide tokens. Keep article/SEO/affiliate behavior independent of presentation. */
:root {
  --guide-canvas:#fcfbf7; --guide-surface:#fff;
  --guide-text:#24323a; --guide-muted:#4d5b63; --guide-heading:#1f4e4a;
  --guide-brand:#2f7f78; --guide-soft:#ddf2ee; --guide-border:#e5ece9;
  --guide-rakko:#f8ede3; --guide-rakko-border:#e6c3a8; --guide-rakko-text:#5d4638;
  --guide-warning:#fff2e2; --guide-warning-text:#995614;
  --guide-heading-font:"LINE Seed JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  --guide-body-font:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  --guide-radius:16px; --guide-shadow:0 8px 24px rgba(36,50,58,.06);
  --research-ink:var(--guide-heading); --research-accent:var(--guide-brand);
  --research-paper:var(--guide-canvas); --research-rule:var(--guide-border);
}
body {background:var(--guide-canvas);color:var(--guide-text);font-family:var(--guide-body-font);font-size:16px;line-height:1.9}
h1,h2,h3 {font-family:var(--guide-heading-font);color:var(--guide-heading)}
a {text-underline-offset:4px}
a:focus-visible,button:focus-visible,input:focus-visible {outline:3px solid var(--guide-brand);outline-offset:4px}
.wb-header {background:var(--guide-canvas);border-color:var(--guide-border)}
.wb-header.is-scrolled {box-shadow:var(--guide-shadow)}
.wb-header .header-top {min-height:72px;gap:20px}
.wb-header .brand {color:var(--guide-heading)}
.wb-header .brand::after {content:none}
.guide-decision {margin-block:28px}
.guide-scope {font-size:14px;color:var(--guide-muted);padding-block:16px;border-block:1px solid var(--guide-border)}
.guide-decision h2 {font-size:22px;line-height:1.5;margin:24px 0 16px}
.guide-fit-grid {display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.guide-fit-grid>div {padding:20px;background:var(--guide-canvas);border-radius:12px}
.guide-fit-grid h3 {font-size:17px;line-height:1.7;margin:0 0 10px}
.guide-fit-grid ul {padding-left:20px;font-size:14px;line-height:1.9;margin:0}
.wb-header .header-utility {margin-left:auto}
.guide-search-link {display:inline-flex;align-items:center;gap:6px;min-height:44px;min-width:44px;color:var(--guide-heading);font-size:13px;text-decoration:none}
.guide-home {padding-top:24px}
.guide-hero {display:grid;grid-template-columns:minmax(0,1.5fr) minmax(270px,1fr);align-items:center;gap:40px;padding:40px;background:linear-gradient(180deg,#f2fbf8 0%,var(--guide-canvas) 100%);border-radius:20px}
.guide-eyebrow {font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--guide-brand);margin:0 0 12px}
.guide-hero h1 {font-size:clamp(34px,3.5vw,44px);font-weight:800;line-height:1.35;letter-spacing:0;margin:0 0 22px}
.guide-lead {max-width:38em;font-size:17px;line-height:1.95;margin:0 0 26px}
.guide-actions {display:flex;gap:12px;flex-wrap:wrap}
.guide-button {display:inline-flex;justify-content:center;align-items:center;gap:8px;min-height:48px;padding:10px 20px;border:1px solid var(--guide-brand);border-radius:12px;background:var(--guide-brand);color:white;font-family:var(--guide-body-font);font-size:15px;font-weight:600;line-height:1.5;text-decoration:none;cursor:pointer}
.guide-button:hover {background:var(--guide-heading);color:white}
.guide-button-secondary {background:var(--guide-surface);border-color:#b9dfd8;color:var(--guide-heading)}
.guide-button-secondary:hover {background:var(--guide-soft);color:var(--guide-heading)}
.guide-rakko {display:flex;align-items:center;gap:14px;margin:0;max-width:370px}
.guide-rakko img {width:90px;height:90px;object-fit:contain;border-radius:50%;flex-shrink:0}
.guide-speech {position:relative;background:var(--guide-rakko);border:1px solid var(--guide-rakko-border);border-radius:16px;padding:14px 16px;color:var(--guide-rakko-text);font-size:14px;line-height:1.8;margin:0}
.guide-rakko-hero {flex-direction:column;margin-inline:auto;gap:0}
.guide-rakko-hero img {width:218px;height:218px;border-radius:18px}
.guide-rakko-hero .guide-speech {margin-top:10px;max-width:280px;text-align:center}
.guide-start {display:grid;gap:4px;max-width:280px;margin:18px auto 0;padding:14px 0;border-top:1px solid var(--guide-border);font-size:13px}
.guide-start strong {color:var(--guide-heading)}
.guide-start a {color:var(--guide-heading);padding-block:4px;text-decoration:none}
.guide-start a:hover {text-decoration:underline}
.guide-section {margin-block:64px;scroll-margin-top:145px}
.guide-section h2 {font-size:clamp(26px,2.5vw,32px);font-weight:700;line-height:1.45;letter-spacing:0;margin:0 0 16px}
.guide-section-heading {margin-bottom:26px;max-width:760px}
.guide-section-heading>p:last-child {margin-bottom:0;color:var(--guide-muted)}
.guide-use-grid {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.guide-use-card {display:grid;position:relative;gap:6px;padding:22px 36px 22px 22px;background:var(--guide-surface);border:1px solid var(--guide-border);border-radius:var(--guide-radius);text-decoration:none;color:var(--guide-text);box-shadow:var(--guide-shadow);transition:transform .15s ease}
.guide-use-card:hover {transform:translateY(-2px);border-color:var(--guide-brand)}
.guide-use-card strong {font-family:var(--guide-heading-font);font-size:18px;line-height:1.6;color:var(--guide-heading)}
.guide-use-card>span:not(.guide-number):not(.guide-arrow) {font-size:13px;line-height:1.75;color:var(--guide-muted)}
.guide-number {color:#99603e;font-size:12px;font-weight:600;letter-spacing:.08em}
.guide-arrow {position:absolute;right:18px;bottom:22px;color:var(--guide-brand)}
.guide-topic-grid {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.guide-topic {padding:24px;border:1px solid var(--guide-border);border-radius:var(--guide-radius);background:white;display:flex;flex-direction:column}
.guide-topic h3 {font-size:22px;line-height:1.5;margin:10px 0}
.guide-topic h3 a,.guide-card h3 a {color:inherit;text-decoration:none}
.guide-topic h3 a:hover,.guide-card h3 a:hover {text-decoration:underline}
.guide-topic>p {font-size:14px;color:var(--guide-muted);margin:0 0 18px}
.guide-topic-tags {list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0 0 18px}
.guide-topic-tags li,.guide-chip {display:inline-block;font-size:12px;line-height:1.7;background:var(--guide-soft);padding:3px 10px;border-radius:999px;color:var(--guide-heading);text-decoration:none}
.guide-topic-latest {display:grid;gap:6px;border-top:1px solid var(--guide-border);margin-top:18px;padding-top:16px;font-size:13px;line-height:1.8}
.guide-topic-latest span {font-size:12px;color:var(--guide-muted)}
.guide-topic-latest a {color:var(--guide-heading)}
.guide-card-grid {display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.guide-card {display:flex;flex-direction:column;padding:24px;background:var(--guide-surface);border:1px solid var(--guide-border);border-radius:var(--guide-radius);box-shadow:var(--guide-shadow);min-width:0}
.guide-labels {display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:12px;color:var(--guide-muted)}
.guide-card h3 {font-size:22px;font-weight:700;line-height:1.6;margin:16px 0 12px;overflow-wrap:anywhere}
.guide-card-summary {font-size:15px;color:var(--guide-muted);line-height:1.9;margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.guide-audience {align-self:flex-start;background:#f4f7f6;padding:5px 10px;border-radius:8px;color:var(--guide-muted);font-size:12px;line-height:1.8;margin:0 0 16px}
.guide-dates {margin-top:auto;display:flex;gap:8px 14px;flex-wrap:wrap;font-size:12px;color:var(--guide-muted)}
.guide-card-link {display:block;align-self:flex-start;min-height:44px;padding-top:14px;font-size:14px;font-weight:600;color:var(--guide-heading);text-decoration:none}
.guide-card-link:hover {text-decoration:underline}
.guide-latest-grid {grid-template-columns:repeat(3,minmax(0,1fr))}
.guide-latest-grid h3 {font-size:19px}
.guide-method {padding:36px;background:#edf6f2;border-radius:18px}
.guide-method>p:not(.guide-eyebrow) {max-width:740px}
.guide-method-grid {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:28px}
.guide-method-grid>div {border-top:2px solid #b9dfd8;padding-top:18px}
.guide-method-grid h3 {font-size:20px;line-height:1.6;margin:0 0 10px}
.guide-method-grid p {font-size:14px;margin:0;color:var(--guide-muted)}
.guide-policy {display:flex;align-items:center;gap:32px;padding-block:30px;border-block:1px solid var(--guide-border)}
.guide-policy>div {flex:1}.guide-policy p {max-width:750px;margin:0;color:var(--guide-muted)}
.guide-next {display:flex;align-items:center;gap:40px;justify-content:space-between}
.guide-next h2 {font-size:26px}.guide-next>div {flex:1}
.guide-search {margin-block:24px;max-width:640px}
.guide-search label {display:block;margin-bottom:8px}
.guide-search>div {display:flex;gap:12px}.guide-search input {min-width:0;flex:1;border:1px solid #b9dfd8;border-radius:12px;padding:10px 14px;background:white;font:inherit}
.guide-search small {display:block;margin-top:8px;color:var(--guide-muted)}
@media(min-width:1200px) {
 .wb-header .header-inner {display:flex;align-items:center;gap:24px}
 .wb-header .header-top {flex-shrink:0}.wb-header .header-utility {display:none}
 .wb-header .site-nav {flex:1;border:0;padding:0;gap:16px;justify-content:flex-end}
 .wb-header .site-nav a {font-size:12px;white-space:nowrap;padding-block:24px}
 .wb-header .site-nav .mobile-utility {display:none}
 .wb-header .brand {font-size:26px}
}
@media(max-width:900px) {
 .guide-hero {padding:28px;gap:24px;grid-template-columns:minmax(0,1.5fr) minmax(220px,1fr)}
 .guide-hero h1 {font-size:34px}.guide-topic-grid {grid-template-columns:repeat(2,minmax(0,1fr))}
 .guide-latest-grid {grid-template-columns:repeat(2,minmax(0,1fr))}
 .wb-header .header-top {min-height:64px;padding-block:12px}.guide-search-link {margin-left:auto}
}
@media(max-width:600px) {
 .guide-fit-grid {grid-template-columns:1fr}
 .main-inner {padding-inline:16px}
 .guide-home {padding-top:12px}
 .guide-hero {grid-template-columns:1fr;padding:26px 0 20px;gap:28px}
 .guide-hero h1 {font-size:clamp(28px,7.5vw,34px);line-height:1.45}
 .guide-lead {font-size:16px;margin-bottom:22px}
 .guide-actions {flex-direction:column;align-items:stretch}
 .guide-welcome {display:grid;grid-template-columns:1fr;gap:10px}
 .guide-rakko-hero {flex-direction:row;gap:12px;max-width:100%}
 .guide-rakko-hero img {width:112px;height:112px}
 .guide-rakko-hero .guide-speech {margin:0;text-align:left}
 .guide-start {max-width:none;margin:8px 0 0;grid-template-columns:1fr 1fr;gap:8px}
 .guide-start strong {grid-column:1/-1}.guide-start a {font-size:12px;line-height:1.8}
 .guide-section {margin-block:56px}
 .guide-section h2 {font-size:26px}
 .guide-use-grid {grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
 .guide-use-card {padding:16px 16px 30px;gap:8px}
 .guide-use-card strong {font-size:15px;line-height:1.65}
 .guide-use-card>span:not(.guide-number):not(.guide-arrow) {font-size:12px}
 .guide-arrow {bottom:10px;right:14px}
 .guide-topic-grid,.guide-card-grid,.guide-method-grid {grid-template-columns:1fr;gap:16px}
 .guide-topic,.guide-card {padding:22px}
 .guide-card h3 {font-size:21px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
 .guide-method {padding:24px 20px}
 .guide-policy,.guide-next {flex-direction:column;align-items:stretch;gap:24px}
 .guide-next .guide-rakko {max-width:100%}
 .guide-section-heading p {font-size:15px}
}
@media(prefers-reduced-motion:reduce) {
 .guide-use-card {transition:none}.guide-use-card:hover {transform:none}
}