:root{--bg:#FFF7FA;--surface:#FFFFFF;--soft:#FFEAF2;--title:#4A1630;--text:#5C2A3E;--muted:#8A4A62;--quiet:#B07A90;--pink:#E85A8B;--pink2:#FF7AA8;--deep:#C43B6E;--pale:#FFE1EC;--border:rgba(232,90,139,.16);--shadow:0 14px 34px rgba(196,59,110,.10);--rail:88px;--top:56px;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.75;overflow-x:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}button{font:inherit}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(28px,4vw,34px);line-height:1.25;color:var(--title);letter-spacing:-.02em}h2{color:var(--title);line-height:1.35}h3{color:var(--title)}p{font-size:16px}.skip-link{position:fixed;left:16px;top:-80px;background:var(--title);color:#fff;padding:10px 16px;border-radius:999px;z-index:999}.skip-link:focus{top:12px}.side-rail{position:fixed;left:0;top:0;bottom:0;width:var(--rail);background:var(--soft);border-right:1px solid var(--border);z-index:50;display:flex;flex-direction:column;align-items:center;padding:10px 8px}.rail-brand{width:58px;height:58px;border-radius:18px;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden;box-shadow:var(--shadow);font-size:12px;font-weight:800;color:var(--deep)}.rail-brand img{width:100%;height:100%;object-fit:cover}.rail-nav{margin-top:18px;display:flex;flex-direction:column;gap:8px;width:100%;align-items:center}.rail-item{width:66px;min-height:48px;border:0;border-radius:18px;display:flex;align-items:center;justify-content:center;text-align:center;padding:8px 6px;color:var(--muted);background:transparent;font-size:12px;line-height:1.25;cursor:pointer}.rail-item:hover,.rail-item:focus-visible{background:#fff;color:var(--deep);outline:2px solid var(--pink2);outline-offset:2px}.rail-item.is-active{background:var(--deep);color:#fff}.topbar{position:fixed;left:var(--rail);right:0;top:0;height:var(--top);background:rgba(255,247,250,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);z-index:45}.topbar-inner{height:100%;max-width:calc(var(--max) + 48px);margin:0 auto;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 24px}.topbar-menu{display:none}.brand-mark{justify-self:center;max-height:36px;display:flex;align-items:center;font-weight:900;color:var(--title);letter-spacing:.04em}.brand-mark img{height:34px;width:auto}.topbar-app{justify-self:end;min-height:44px;display:flex;align-items:center;padding:0 18px;border-radius:999px;background:linear-gradient(135deg,#FF7AA8 0%,#E85A8B 55%,#C43B6E 100%);color:#fff;font-weight:800;font-size:14px}.topbar-app:hover,.topbar-app:focus-visible{box-shadow:0 10px 24px rgba(196,59,110,.18);outline:2px solid var(--title);outline-offset:2px}.site-main{margin-left:var(--rail);padding:calc(var(--top) + 34px) 24px 70px}.container{width:min(100%,var(--max));margin:0 auto}.hero-notebook{background:linear-gradient(180deg,#fff 0%,#fffafb 100%);border:1px solid var(--border);border-radius:22px;box-shadow:var(--shadow);padding:30px}.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:10px;color:var(--deep);font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.hero-notebook p{max-width:820px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0}.btn{min-height:44px;border-radius:999px;padding:10px 18px;display:inline-flex;align-items:center;justify-content:center;font-weight:800}.btn-primary{background:linear-gradient(135deg,#FF7AA8 0%,#E85A8B 55%,#C43B6E 100%);color:#fff}.btn-secondary{background:#fff;color:var(--deep);border:1px solid var(--border)}.btn:hover,.btn:focus-visible{transform:translateY(-1px);outline:2px solid var(--title);outline-offset:2px}.media-slot{width:100%;border-radius:20px;background:linear-gradient(135deg,var(--pale),#fff);border:1px dashed rgba(196,59,110,.22);overflow:hidden;min-height:180px;display:flex;align-items:center;justify-content:center;color:var(--quiet)}.hero-media{max-height:360px;min-height:180px}.hero-media img{width:100%;max-height:360px;object-fit:cover}.section{margin-top:34px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:16px}.section-head h2{margin-bottom:0;font-size:26px}.section-head p{margin:0;color:var(--muted);max-width:620px}.polaroid-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.polaroid{background:#fff;border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow);padding:12px 12px 18px}.polaroid:nth-child(odd){transform:rotate(-.7deg)}.polaroid:nth-child(even){transform:rotate(.7deg)}.polaroid img,.polaroid .media-slot{border-radius:14px;min-height:150px;aspect-ratio:4/3;object-fit:cover}.polaroid h3{margin:14px 0 6px}.polaroid p{margin:0;color:var(--muted)}.note-card,.content-card,.status-card,.letter-card,.book-card,.number-card,.term-card,.faq-item,.index-card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:22px;box-shadow:var(--shadow)}.note-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}.note-lines{background:repeating-linear-gradient(#fff,#fff 31px,#f9dbe6 32px);padding:24px;border-radius:18px;border:1px solid var(--border)}.note-row{display:grid;grid-template-columns:48px 1fr;gap:14px;padding:11px 0;border-bottom:1px dashed var(--border)}.note-row:last-child{border-bottom:0}.note-row b{color:var(--pink);font-size:20px}.bookshelf{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.book-card{min-height:310px;display:flex;flex-direction:column}.book-cover{aspect-ratio:3/4;background:linear-gradient(160deg,var(--pale),#fff);border-radius:16px;border:1px solid var(--border);padding:18px;display:flex;align-items:flex-end}.book-cover strong{font-size:22px;color:var(--title)}.book-card p{color:var(--muted);margin:14px 0 0}.numbers{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.number-card b{font-size:42px;line-height:1;color:var(--pink)}.number-card h3{margin:12px 0 8px}.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.status-card span{display:inline-flex;padding:5px 10px;border-radius:999px;background:var(--pale);color:var(--deep);font-weight:800;font-size:13px}.two-col{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.app-band{display:grid;grid-template-columns:.85fr 1.15fr;gap:24px;align-items:center;background:linear-gradient(135deg,#fff,#fff0f5);border:1px solid var(--border);border-radius:22px;padding:24px;box-shadow:var(--shadow)}.app-brandline{display:flex;align-items:center;gap:12px}.app-icon{width:58px;height:58px;border-radius:18px;object-fit:cover}.page-hero{background:#fff;border:1px solid var(--border);border-radius:22px;padding:28px;box-shadow:var(--shadow);margin-bottom:26px}.page-hero .lead{font-size:17px;color:var(--muted);max-width:850px}.page-hero-media{margin-top:20px;max-height:340px}.page-hero-media img{width:100%;max-height:340px;object-fit:cover;border-radius:18px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.stack{display:grid;gap:16px}.content-card h2,.content-card h3{margin-bottom:10px}.content-card p:last-child{margin-bottom:0}.tag{display:inline-flex;padding:5px 10px;border-radius:999px;background:var(--pale);color:var(--deep);font-size:13px;font-weight:800;margin-bottom:10px}.index-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.index-card{display:flex;gap:16px;align-items:flex-start}.index-card .index-no{font-size:28px;color:var(--pink);font-weight:900;line-height:1}.longread article{background:#fff;border:1px solid var(--border);border-radius:22px;padding:28px;box-shadow:var(--shadow)}.longread p{max-width:820px}.steps{counter-reset:step;display:grid;gap:14px}.step{counter-increment:step;background:#fff;border:1px solid var(--border);border-radius:18px;padding:20px;box-shadow:var(--shadow);display:grid;grid-template-columns:54px 1fr;gap:16px}.step:before{content:counter(step,decimal-leading-zero);width:48px;height:48px;border-radius:16px;background:var(--pale);color:var(--deep);display:flex;align-items:center;justify-content:center;font-weight:900}.mood-covers{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.mood-card{min-height:220px;border-radius:22px;padding:22px;background:linear-gradient(145deg,#fff,var(--pale));border:1px solid var(--border);display:flex;flex-direction:column;justify-content:end}.mood-card p{color:var(--muted);margin-bottom:0}.terms{display:grid;gap:14px}.term-card h2{font-size:20px}.notice{padding:18px 20px;border-left:4px solid var(--pink);background:#fff;border-radius:0 16px 16px 0}.faq-list{display:grid;gap:14px}.faq-item h2{font-size:19px;margin-bottom:8px}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.contact-grid .content-card{min-height:220px}.site-footer{margin-left:var(--rail);background:var(--title);color:#F8D6E4;padding:42px 24px calc(36px + env(safe-area-inset-bottom))}.footer-inner{width:min(100%,var(--max));margin:0 auto}.footer-brand{display:flex;align-items:center;gap:14px;margin-bottom:28px}.footer-brand img{height:34px;width:auto;filter:brightness(0) invert(1);opacity:.95}.footer-brand strong{display:block;color:#fff;font-size:20px}.footer-brand span{font-size:12px;letter-spacing:.12em}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.footer-links h2{font-size:15px;color:#fff}.footer-links a{display:block;margin:7px 0;color:#F8D6E4}.footer-links a:hover,.footer-links a:focus-visible{text-decoration:underline;outline:none}.footer-note{max-width:860px;margin-top:26px;color:#F8D6E4}.footer-copy{font-size:13px;color:#DDB4C5}.overlay{position:fixed;inset:0;z-index:90;visibility:hidden;pointer-events:none}.overlay.is-open{visibility:visible;pointer-events:auto}.overlay-backdrop{position:absolute;inset:0;background:rgba(74,22,48,.28)}.full-menu{position:relative;width:100%;height:100%;overflow:auto;background:var(--bg);padding:24px clamp(18px,4vw,48px);transform:translateY(12px);opacity:0;transition:.2s ease}.overlay.is-open .full-menu,.overlay.is-open .search-card{transform:none;opacity:1}.overlay-head{display:flex;align-items:center;justify-content:space-between;max-width:1180px;margin:0 auto 20px}.overlay-logo img{height:34px;width:auto}.close-btn{width:46px;height:46px;border-radius:50%;border:1px solid var(--border);background:#fff;color:var(--title);font-size:28px;cursor:pointer}.close-btn:hover,.close-btn:focus-visible{outline:2px solid var(--pink);outline-offset:2px}.menu-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.menu-group{background:#fff;border:1px solid var(--border);border-radius:22px;padding:20px}.menu-group h2{font-size:18px}.menu-group a{display:block;padding:12px;border-radius:14px;margin:4px 0}.menu-group a:hover,.menu-group a:focus-visible{background:var(--pale);outline:2px solid var(--pink2);outline-offset:1px}.menu-group strong,.menu-group span{display:block}.menu-group span{font-size:13px;color:var(--muted);margin-top:2px}.search-card{position:absolute;left:50%;top:50%;width:min(92vw,620px);transform:translate(-50%,calc(-50% + 12px));background:#fff;border:1px solid var(--border);border-radius:22px;padding:28px;box-shadow:0 28px 70px rgba(74,22,48,.18);opacity:0;transition:.2s ease}.overlay.is-open .search-card{transform:translate(-50%,-50%)}.search-close{position:absolute;right:16px;top:16px}.search-visual{height:52px;border:1px solid var(--border);border-radius:999px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;color:var(--quiet);margin:22px 0 16px}.preset-links{display:flex;flex-wrap:wrap;gap:10px}.preset-links a{min-height:44px;display:flex;align-items:center;padding:0 14px;border-radius:999px;background:var(--pale);color:var(--deep);font-weight:800}.preset-links a:hover,.preset-links a:focus-visible{outline:2px solid var(--pink);outline-offset:2px}.overlay-open{overflow:hidden}.mobile-bottom{display:none}
@media (max-width:900px){.polaroid-grid{grid-template-columns:repeat(2,1fr)}.bookshelf,.numbers,.status-grid{grid-template-columns:repeat(2,1fr)}.grid-3,.mood-covers{grid-template-columns:repeat(2,1fr)}.note-layout,.app-band{grid-template-columns:1fr}.footer-links{grid-template-columns:repeat(2,1fr)}}
@media (max-width:720px){body{padding-bottom:calc(50px + env(safe-area-inset-bottom))}.side-rail{display:none}.topbar{left:0}.topbar-inner{grid-template-columns:78px minmax(0,1fr) 86px;padding:0 12px}.topbar-menu{display:flex;min-height:44px;align-items:center;justify-content:flex-start;border:0;background:transparent;color:var(--deep);font-weight:800}.topbar-spacer{display:none}.brand-mark{max-width:150px;overflow:hidden}.brand-mark img{max-width:100%;object-fit:contain}.topbar-app{min-height:44px;padding:0 12px;font-size:13px}.site-main{margin-left:0;padding:calc(var(--top) + 22px) 16px 42px}.site-footer{margin-left:0;padding-left:16px;padding-right:16px;padding-bottom:calc(78px + env(safe-area-inset-bottom))}.mobile-bottom{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;z-index:55;min-height:50px;padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--border);box-shadow:0 -10px 30px rgba(196,59,110,.08)}.mobile-bottom a{min-height:50px;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--muted)}.mobile-bottom a.is-active{color:var(--pink);font-weight:900}.hero-notebook,.page-hero,.longread article{padding:22px 18px}.polaroid-grid,.grid-2,.grid-3,.two-col,.contact-grid,.index-list{grid-template-columns:1fr}.bookshelf,.numbers,.status-grid,.mood-covers{grid-template-columns:repeat(2,1fr)}.menu-grid{grid-template-columns:repeat(2,1fr)}.menu-group:last-child{grid-column:1/-1}.section-head{align-items:flex-start;flex-direction:column}.footer-links{grid-template-columns:repeat(2,1fr)}.note-row{grid-template-columns:40px 1fr}.step{grid-template-columns:46px 1fr}.step:before{width:42px;height:42px}.hero-media,.page-hero-media{min-height:150px}}
@media (max-width:460px){.bookshelf,.numbers,.status-grid,.mood-covers,.menu-grid{grid-template-columns:1fr}.menu-group:last-child{grid-column:auto}.footer-links{grid-template-columns:1fr 1fr}.polaroid:nth-child(n){transform:none}.hero-notebook{padding:20px 16px}.app-band{padding:18px}.search-card{padding:24px 18px}.search-close{right:12px;top:12px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}