:root{--bg:#FFF9FC;--surface:#fff;--pink-soft:#FFF1F6;--purple-soft:#F6F3FF;--gray-soft:#F8F6F7;--ink:#31262C;--text:#51454C;--muted:#7C6E75;--hint:#A2949B;--pink:#FF5C98;--berry:#D9467B;--peach:#FF96AD;--purple:#8B74E8;--deep:#6250B0;--line:rgba(255,92,152,.15);--shadow:0 14px 38px rgba(70,44,58,.08);--strong-shadow:0 20px 48px rgba(217,70,123,.14);--gradient:linear-gradient(135deg,#FF96AD 0%,#FF5C98 50%,#8B74E8 100%);--radius:24px;--header:78px}
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p{margin:0;color:var(--muted)}.topic-list{display:grid;gap:14px}.topic-item{display:grid;grid-template-columns:58px 1fr auto;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);padding:20px 22px;border-radius:22px}.topic-no{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:var(--pink-soft);color:var(--berry);font-weight:900}.topic-item h3{margin:0 0 4px;color:var(--ink)}.topic-item p{margin:0;color:var(--muted)}.journal-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px}.journal-paper{background:#fff;border-radius:28px;padding:34px;box-shadow:var(--shadow);border:1px solid var(--line);background-image:linear-gradient(to bottom,transparent 39px,rgba(255,92,152,.09) 40px);background-size:100% 40px}.journal-paper p{margin:0 0 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var(--ink);border-radius:38px;margin:auto;background:linear-gradient(180deg,#FFF1F6,#F6F3FF);padding:28px 16px}.phone-shell:before{content:"";display:block;width:72px;height:7px;background:var(--ink);border-radius:10px;margin:-14px auto 24px}.phone-line{height:14px;border-radius:8px;background:rgba(255,92,152,.22);margin-bottom:12px}.phone-line:nth-child(2){width:72%}.phone-line:nth-child(3){width:88%}.phone-block{height:110px;border-radius:20px;background:var(--gradient);margin:22px 0}.service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:28px}.principle-grid,.feedback-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.principle-card{padding:24px;border-radius:22px;background:#fff;border:1px solid var(--line)}.principle-card h3{margin:0 0 8px;color:var(--ink)}.principle-card p{margin:0;color:var(--muted)}.security-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.security-card{padding:32px;border-radius:28px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}.security-card:nth-child(2){background:var(--purple-soft)}.security-card h3{font-size:30px;color:var(--ink);margin:0 0 12px}.check-list{list-style:none;padding:0;margin:18px 0}.check-list li{position:relative;padding-left:28px;margin:8px 0}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--berry);font-weight:900}.faq-list{display:grid;gap:12px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:0 20px}.faq-list summary{cursor:pointer;min-height:58px;display:flex;align-items:center;justify-content:space-between;color:var(--ink);font-weight:850}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"＋";color:var(--berry);font-size:22px}.faq-list details[open] summary:after{content:"－"}.faq-list details p{margin:0 0 20px;color:var(--muted)}
.page-hero{padding:80px 0 54px}.page-hero .hero-box{background:linear-gradient(145deg,#fff,var(--pink-soft));border:1px solid var(--line);border-radius:34px;padding:50px;box-shadow:var(--shadow);position:relative;overflow:hidden}.page-hero .hero-box:after{content:"";position:absolute;width:260px;height:260px;border-radius:50%;right:-80px;top:-100px;background:rgba(139,116,232,.10);pointer-events:none}.page-hero h1{font-size:clamp(42px,6vw,68px);max-width:830px}.page-hero p{max-width:860px;font-size:18px;color:var(--muted);margin:0}.page-content{padding:18px 0 88px}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;align-items:start}.article-stack{display:grid;gap:20px}.article-section{background:#fff;border:1px solid var(--line);border-radius:26px;padding:30px;box-shadow:var(--shadow)}.article-section:nth-child(2n){background:linear-gradient(145deg,#fff,#F6F3FF)}.article-section h2{color:var(--ink);font-size:28px;margin:0 0 12px}.article-section p{margin:0 0 12px}.article-section ul,.article-section ol{margin:14px 0 0;padding-left:22px}.article-section li{margin:8px 0}.side-card{position:sticky;top:104px;background:var(--pink-soft);border:1px solid var(--line);border-radius:24px;padding:24px}.side-card h2{margin:0 0 12px;color:var(--ink)}.side-card a{display:block;padding:10px 0;border-bottom:1px solid rgba(217,70,123,.12);color:var(--berry);font-weight:800}.side-card p{color:var(--muted)}.steps{counter-reset:step;display:grid;gap:14px;margin-top:14px}.step{counter-increment:step;position:relative;padding:18px 18px 18px 64px;border-radius:18px;background:var(--gray-soft)}.step:before{content:counter(step);position:absolute;left:18px;top:18px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;color:#fff;background:var(--gradient);font-weight:900}.callout{padding:20px 22px;border-radius:20px;background:var(--purple-soft);border-left:4px solid var(--purple)}.related-links{display:flex;flex-wrap:wrap;gap:10px}.related-links a{display:inline-flex;min-height:44px;align-items:center;padding:0 16px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--berry);font-weight:800}.notice-list{display:grid;gap:14px}.notice-item{padding:22px;border-radius:20px;background:#fff;border:1px solid var(--line)}.notice-item time{display:block;color:var(--hint);font-size:14px}.notice-item h2{margin:4px 0 8px;color:var(--ink);font-size:24px}.notice-item p{margin:0;color:var(--muted)}
.site-footer{background:#30252B;color:#FFEAF2;padding:62px 0 calc(26px + env(safe-area-inset-bottom))}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:34px}.site-footer h2{font-size:16px;margin:0 0 12px;color:#fff}.site-footer a{display:block;color:#FFEAF2;opacity:.86;padding:5px 0}.site-footer a:hover{opacity:1}.footer-brand p{color:#D8C8CF;max-width:290px}.footer-logo{justify-content:flex-start}.footer-logo .brand-word{font-size:28px}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:24px;display:flex;justify-content:space-between;gap:20px;color:#D8C8CF;font-size:14px}.footer-bottom p{margin:0}
.overlay{position:fixed;inset:0;z-index:1100;background:rgba(49,38,44,.28);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .22s,visibility .22s}.overlay.is-visible{opacity:1;visibility:visible;pointer-events:auto}.channel-panel{position:fixed;left:0;right:0;top:var(--header);z-index:1200;max-height:calc(100vh - var(--header));overflow:auto;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--strong-shadow);transform:translateY(-110%);visibility:hidden;pointer-events:none;transition:transform .25s ease,visibility .25s}.channel-panel.is-open{transform:translateY(0);visibility:visible;pointer-events:auto}.channel-panel-inner{padding:34px 0 38px}.panel-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:22px}.panel-heading h2{margin:6px 0 0;color:var(--ink);font-size:32px}.panel-close,.drawer-close{width:44px;height:44px;border-radius:50%;background:var(--pink-soft);color:var(--berry);font-size:28px;line-height:1}.channel-columns{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.channel-column{background:var(--gray-soft);border-radius:22px;padding:22px}.channel-column h3{margin:0 0 10px;color:var(--ink)}.channel-column a{display:block;background:#fff;border-radius:16px;padding:13px;margin:8px 0}.channel-column strong{display:block;color:var(--ink)}.channel-column span{display:block;color:var(--muted);font-size:13px;line-height:1.55;margin-top:3px}.mobile-drawer{position:fixed;z-index:1200;top:0;right:0;width:min(88vw,390px);height:100vh;background:#fff;transform:translateX(105%);visibility:hidden;pointer-events:none;transition:transform .25s ease,visibility .25s;overflow:auto;padding-bottom:calc(30px + env(safe-area-inset-bottom))}.mobile-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--line);z-index:2}.drawer-nav{padding:12px 18px 30px}.drawer-nav a{display:flex;align-items:center;min-height:48px;border-bottom:1px solid var(--line);font-weight:750;color:var(--ink)}.mobile-bottom-nav{display:none}
@media (max-width:1050px){.nav-link{padding:0 9px;font-size:14px}.feature-grid{grid-template-columns:1fr 1fr}.feature-grid .content-card:first-child{grid-row:auto;grid-column:1/-1}.interest-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.2fr repeat(2,1fr)}.channel-columns{grid-template-columns:repeat(2,1fr)}}
@media (max-width:860px){:root{--header:68px}.desktop-nav-wrap{display:none}.mobile-topbar{display:flex}.container{width:min(100% - 32px,1220px)}main{padding-top:var(--header);padding-bottom:76px}.section{padding:62px 0}.hero{padding:44px 0 64px}.hero-grid{grid-template-columns:1fr}.hero-copy{order:-1;padding:8px 0 20px}.hero-side{padding:22px}.hero-visual{min-height:430px}.visual-notes{flex-direction:column;align-items:stretch}.visual-card{width:auto}.visual-card:nth-child(2){transform:none}.index-grid,.gallery-grid,.discover-grid,.principle-grid,.feedback-grid{grid-template-columns:1fr 1fr}.journal-grid,.app-showcase,.security-grid,.content-layout{grid-template-columns:1fr}.side-card{position:static;order:-1}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-bottom{flex-direction:column}.channel-panel{top:68px}.mobile-bottom-nav{position:fixed;z-index:1000;left:0;right:0;bottom:0;height:calc(64px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.96);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr);backdrop-filter:blur(16px)}.mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;min-height:64px;color:var(--muted);font-weight:800}.mobile-bottom-nav a.is-active{color:var(--berry)}.site-footer{padding-bottom:calc(92px + env(safe-area-inset-bottom))}.page-hero{padding:52px 0 34px}.page-hero .hero-box{padding:34px 26px}.topic-item{grid-template-columns:50px 1fr}.topic-item .text-link{grid-column:2}.app-device{min-height:430px}}
@media (max-width:620px){.container{width:min(100% - 32px,1220px)}.section{padding:52px 0}.section-head h2{font-size:34px}.hero-copy h1{font-size:46px}.hero-copy p,.section-head p,.page-hero p{font-size:16px}.hero-visual{min-height:520px}.index-grid,.gallery-grid,.interest-grid,.discover-grid,.principle-grid,.feedback-grid,.service-grid,.channel-columns,.footer-grid{grid-template-columns:1fr}.feature-grid{grid-template-columns:1fr}.feature-grid .content-card:first-child{grid-column:auto}.journal-paper,.article-section,.security-card{padding:24px}.topic-item{padding:18px}.page-hero h1{font-size:42px}.page-hero .hero-box{padding:30px 22px}.app-device{padding:22px}.phone-shell{width:220px}.footer-brand{grid-column:auto}.channel-panel-inner{padding:26px 0}.panel-heading h2{font-size:26px}.channel-columns{gap:14px}}
@media (prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}