:root{--brand:#6C63FF;--brand-soft:#A78BFA;--ink:#22232B;--muted:#6F7280;--dark:#171821;--paper:#F7F7FA;--soft:#ECECF3;--warm:#F59E5B;--line:#DADAE5;--white:#fff;--radius:22px;--shadow:0 18px 50px rgba(23,24,33,.10);--shell:min(1180px,calc(100% - 40px));}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.72}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button,input{font:inherit}.shell{width:var(--shell);margin-inline:auto}.skip-link{position:fixed;left:16px;top:-60px;z-index:999;background:var(--dark);color:#fff;padding:10px 16px;border-radius:10px}.skip-link:focus{top:16px}.site-header{position:sticky;top:0;z-index:80;background:rgba(247,247,250,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(218,218,229,.86)}.header-grid{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:inline-flex;align-items:center;gap:12px}.brand img{width:48px;height:48px;border-radius:14px;object-fit:cover}.brand span{display:grid}.brand strong{font-size:1.05rem;letter-spacing:.03em}.brand small{color:var(--muted);font-size:.77rem}.main-nav{display:flex;align-items:center;gap:8px}.main-nav a{padding:10px 14px;border-radius:999px;color:#4b4d59;font-weight:600}.main-nav a:hover,.main-nav a[aria-current=page]{color:var(--brand);background:#efefff}.menu-button{display:none;width:44px;height:44px;border:0;border-radius:12px;background:#ececf3;align-items:center;justify-content:center;flex-direction:column;gap:5px}.menu-button span{width:20px;height:2px;background:var(--ink);border-radius:99px}.hero{padding:64px 0 48px;background:linear-gradient(180deg,#f3f2ff 0%,#f7f7fa 86%)}.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center}.eyebrow{margin:0 0 12px;color:var(--brand);font-size:.77rem;line-height:1.4;text-transform:uppercase;letter-spacing:.16em;font-weight:800}.hero h1,.page-intro h1,.detail-copy h1{margin:.1em 0 .4em;font-size:clamp(2.35rem,5vw,4.9rem);line-height:1.05;letter-spacing:-.045em}.hero .lead,.page-intro p,.detail-copy .lead{font-size:1.08rem;color:#555866;max-width:720px}.button-row,.detail-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 19px;border-radius:14px;background:var(--brand);color:#fff;font-weight:800;box-shadow:0 10px 24px rgba(108,99,255,.24)}.button:hover{transform:translateY(-1px)}.button--ghost{background:transparent;color:var(--ink);border:1px solid var(--line);box-shadow:none}.button--warm{background:var(--warm);color:#2c1a0a;box-shadow:none}.hero-points{display:flex;flex-wrap:wrap;gap:14px 24px;padding:0;margin:28px 0 0;list-style:none;color:#565866;font-size:.9rem}.hero-points li:before{content:"";display:inline-block;width:7px;height:7px;margin-right:9px;border-radius:50%;background:var(--brand-soft)}.hero-media{position:relative}.hero-media>img{width:100%;aspect-ratio:1.16/1;object-fit:cover;border-radius:34px;box-shadow:var(--shadow)}.hero-card{position:absolute;right:-18px;bottom:24px;min-width:250px;background:rgba(23,24,33,.92);color:#fff;border-radius:18px;padding:18px 20px;box-shadow:var(--shadow)}.hero-card{display:grid;gap:3px}.hero-card span{font-size:.82rem;color:#c7c8d4}.section{padding:78px 0}.section--tight{padding-top:24px}.section--soft{background:var(--soft)}.section--dark{background:var(--dark);color:#fff}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:34px;margin-bottom:30px}.section-heading h2,.split-feature__copy h2,.info-band h2,.compact-cta h2{margin:0;font-size:clamp(1.7rem,3vw,2.75rem);line-height:1.14;letter-spacing:-.035em}.section-heading>p,.section-heading>div+p{max-width:560px;color:var(--muted);margin:0}.text-link{color:var(--brand);font-weight:800;white-space:nowrap}.collection-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.collection-card{overflow:hidden;border-radius:20px;background:#fff;border:1px solid #e3e3ec;transition:.2s}.collection-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.collection-card img{width:100%;aspect-ratio:1.55/1;object-fit:cover}.collection-card div{padding:18px}.collection-card span{font-size:.76rem;color:var(--brand);font-weight:800}.collection-card h3{margin:4px 0 8px;font-size:1.15rem}.collection-card p{margin:0;color:var(--muted);font-size:.88rem}.media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.media-grid--4{grid-template-columns:repeat(4,1fr)}.media-card{background:#fff;border:1px solid #e1e1ea;border-radius:22px;overflow:hidden;min-width:0}.media-card__image{position:relative;display:block;background:#dedee8}.media-card__image img{width:100%;aspect-ratio:1.6/1;object-fit:cover}.media-card__badge{position:absolute;left:14px;bottom:14px;padding:6px 10px;border-radius:999px;background:rgba(23,24,33,.85);color:#fff;font-size:.72rem;font-weight:800}.media-card__body{padding:19px}.media-card__body h3{margin:0 0 8px;font-size:1.12rem;line-height:1.35}.media-card__body h3 a:hover{color:var(--brand)}.media-card__body>p:not(.eyebrow){margin:0;color:var(--muted);font-size:.9rem}.tag-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}.tag-row span{padding:5px 9px;background:#f0f0f6;border-radius:999px;color:#616372;font-size:.72rem}.split-feature{display:grid;grid-template-columns:.95fr 1.05fr;gap:58px;align-items:center}.split-feature__media img{width:100%;aspect-ratio:1.22/1;object-fit:cover;border-radius:28px}.split-feature__copy>p:not(.eyebrow){color:var(--muted);font-size:1rem}.mini-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:24px 0}.mini-list>div{padding:16px;border-radius:15px;background:#fff;border:1px solid var(--line);display:grid;gap:3px}.mini-list span{font-size:.78rem;color:var(--muted)}.compact-cta{display:flex;align-items:center;justify-content:space-between;gap:30px}.compact-cta p{color:#bbbcc7;max-width:700px}.page-top{padding:34px 0 18px}.breadcrumb ol{display:flex;flex-wrap:wrap;gap:9px;list-style:none;padding:0;margin:0 0 32px;color:var(--muted);font-size:.82rem}.breadcrumb li:not(:last-child):after{content:"/";margin-left:9px;color:#b0b1bd}.breadcrumb a:hover{color:var(--brand)}.page-intro{padding:18px 0 28px}.page-intro h1{font-size:clamp(2.3rem,4.4vw,4.4rem);max-width:900px}.filter-bar{display:flex;flex-wrap:wrap;gap:8px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:18px}.filter-bar a{padding:8px 13px;border-radius:10px;font-size:.86rem;font-weight:700}.filter-bar a:hover,.filter-bar a[aria-current=page]{background:var(--brand);color:#fff}.info-band{display:grid;grid-template-columns:.85fr 1.15fr;gap:50px;padding:34px;border:1px solid var(--line);border-radius:24px;background:#fff}.info-band>p{color:var(--muted);margin:0}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.feature-grid article{padding:24px;border-radius:20px;background:#fff;border:1px solid var(--line)}.feature-grid h3{margin-top:0}.feature-grid p{color:var(--muted);margin-bottom:0}.check-list{padding:0;list-style:none;display:grid;gap:10px;margin:24px 0}.check-list li{position:relative;padding-left:28px}.check-list li:before{content:"✓";position:absolute;left:0;top:0;color:var(--brand);font-weight:900}.faq-list{display:grid;gap:12px;max-width:900px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:0 18px}.faq-list summary{cursor:pointer;padding:18px 0;font-weight:800}.faq-list p{margin:0 0 18px;color:var(--muted)}.detail-layout{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start;padding-bottom:60px}.detail-visual img{width:100%;aspect-ratio:1.38/1;object-fit:cover;border-radius:28px}.detail-copy{padding-top:16px}.detail-copy h1{font-size:clamp(2.4rem,4vw,4.2rem)}.detail-body{grid-column:1/-1;max-width:850px;font-size:1.04rem}.detail-body p{color:#4f5260}.not-found{padding:110px 0 140px;max-width:760px}.not-found h1{font-size:clamp(2.6rem,6vw,5rem);margin:.1em 0}.site-footer{padding:42px 0;background:#101116;color:#f3f3f6}.footer-grid{display:grid;grid-template-columns:1fr auto 1fr;gap:36px;align-items:start}.site-footer p{color:#9fa1ae;margin:.35em 0 0;font-size:.84rem}.site-footer nav{display:flex;flex-wrap:wrap;gap:16px}.site-footer nav a{color:#d8d8e0}.footer-note{text-align:right}.site-footer strong{font-size:1.1rem}
@media(max-width:1050px){.collection-grid{grid-template-columns:repeat(2,1fr)}.media-grid{grid-template-columns:repeat(2,1fr)}.media-grid--4{grid-template-columns:repeat(2,1fr)}.hero-grid,.split-feature,.detail-layout{gap:34px}.hero h1{font-size:3.5rem}.footer-grid{grid-template-columns:1fr 1fr}.footer-note{text-align:left;grid-column:1/-1}}
@media(max-width:760px){:root{--shell:min(100% - 28px,1180px)}.site-header{position:relative}.menu-button{display:flex}.main-nav{position:absolute;left:14px;right:14px;top:68px;display:none;flex-direction:column;align-items:stretch;padding:12px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.main-nav.is-open{display:flex}.hero{padding-top:34px}.hero-grid,.split-feature,.detail-layout,.info-band{grid-template-columns:1fr}.hero-copy{order:1}.hero-media{order:2}.hero h1,.page-intro h1,.detail-copy h1{font-size:clamp(2.25rem,11vw,3.6rem)}.hero-card{right:12px;bottom:12px;min-width:0}.section{padding:56px 0}.section-heading{align-items:start;flex-direction:column;gap:12px}.collection-grid,.media-grid,.media-grid--4,.feature-grid{grid-template-columns:1fr}.mini-list{grid-template-columns:1fr}.compact-cta{align-items:flex-start;flex-direction:column}.detail-body{grid-column:auto}.footer-grid{grid-template-columns:1fr}.site-footer nav{order:3}.footer-note{grid-column:auto}.hero-points{display:grid;gap:7px}.filter-bar{overflow-x:auto;flex-wrap:nowrap}.filter-bar a{white-space:nowrap}.detail-layout{padding-bottom:30px}}
@media(max-width:430px){.brand small{display:none}.header-grid{min-height:68px}.hero-media>img{border-radius:24px}.collection-card,.media-card{border-radius:18px}.button{width:100%}.button-row{display:grid}.page-top{padding-top:22px}.info-band{padding:24px}.hero-card{font-size:.84rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}

.space-1{margin-top:2px}
.space-2{margin-top:4px}
.space-3{margin-top:6px}
.space-4{margin-top:8px}
.space-5{margin-top:10px}
.space-6{margin-top:12px}
.space-7{margin-top:14px}
.space-8{margin-top:16px}
.space-9{margin-top:18px}
.space-10{margin-top:20px}
.space-11{margin-top:22px}
.space-12{margin-top:24px}
.space-13{margin-top:26px}
.space-14{margin-top:28px}
.space-15{margin-top:30px}
.space-16{margin-top:32px}
.space-17{margin-top:34px}
.space-18{margin-top:36px}
.space-19{margin-top:38px}
.space-20{margin-top:40px}
.space-21{margin-top:42px}
.space-22{margin-top:44px}
.space-23{margin-top:46px}
.space-24{margin-top:48px}
.space-25{margin-top:50px}
.space-26{margin-top:52px}
.space-27{margin-top:54px}
.space-28{margin-top:56px}
.space-29{margin-top:58px}
.space-30{margin-top:60px}/* Extended content presentation primitives */
.content-index{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:28px 0}.content-index a{display:grid;gap:5px;padding:16px 18px;border:1px solid var(--line);border-radius:16px;background:#fff}.content-index strong{font-size:.93rem}.content-index span{font-size:.78rem;color:var(--muted)}
.stateless-note{padding:18px 20px;border-left:4px solid var(--brand);border-radius:0 14px 14px 0;background:#f0efff;color:#505261}.stateless-note strong{color:var(--ink)}
.prose{max-width:820px}.prose h2{margin:2em 0 .6em;font-size:2rem;line-height:1.2}.prose h3{margin:1.5em 0 .4em;font-size:1.3rem}.prose p{color:#50525f}.prose ul,.prose ol{padding-left:1.35em}.prose li+li{margin-top:.45em}
.inline-links{display:flex;flex-wrap:wrap;gap:10px}.inline-links a{padding:8px 12px;border-radius:10px;background:#fff;border:1px solid var(--line);font-size:.84rem;font-weight:700}.inline-links a:hover{border-color:var(--brand);color:var(--brand)}
.media-list{display:grid;gap:12px}.media-list article{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:18px}.media-list img{width:150px;height:100px;object-fit:cover;border-radius:12px}.media-list h3{margin:2px 0 6px}.media-list p{margin:0;color:var(--muted);font-size:.86rem}
.sticky-tools{position:sticky;top:98px;align-self:start;padding:18px;border-radius:18px;background:#fff;border:1px solid var(--line)}.sticky-tools h2{margin:0 0 12px;font-size:1rem}.sticky-tools nav{display:grid;gap:7px}.sticky-tools a{padding:8px 10px;border-radius:9px;font-size:.84rem}.sticky-tools a:hover{background:#f0efff;color:var(--brand)}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px;background:#fff}.table-wrap table{width:100%;border-collapse:collapse;min-width:640px}.table-wrap th,.table-wrap td{padding:13px 15px;text-align:left;border-bottom:1px solid var(--line)}.table-wrap th{font-size:.77rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);background:#f3f3f7}.table-wrap tr:last-child td{border-bottom:0}
.callout-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.callout{padding:22px;border-radius:18px;background:#fff;border:1px solid var(--line)}.callout h3{margin:0 0 8px}.callout p{margin:0;color:var(--muted)}
@media(max-width:900px){.content-index{grid-template-columns:repeat(2,1fr)}.sticky-tools{position:static}.callout-grid{grid-template-columns:1fr}}
@media(max-width:600px){.content-index{grid-template-columns:1fr}.media-list article{grid-template-columns:1fr}.media-list img{width:100%;height:auto;aspect-ratio:1.6/1}}
/* Accessibility, print and resilient layout refinements */
:focus-visible{outline:3px solid rgba(108,99,255,.45);outline-offset:3px}.button:focus-visible,.main-nav a:focus-visible,.filter-bar a:focus-visible{outline-color:var(--warm)}
::selection{background:#d9d6ff;color:#171821}.media-card,.collection-card,.feature-grid article,.faq-list details{contain:layout paint}.hero-copy,.split-feature__copy,.detail-copy{min-width:0}.main-nav a,.button,.collection-card,.media-card__image,.text-link{transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease}.media-card__image img,.collection-card img{transition:transform .28s ease}.media-card:hover .media-card__image img,.collection-card:hover img{transform:scale(1.015)}
.reading-meta{display:flex;flex-wrap:wrap;gap:8px 16px;margin:12px 0 24px;color:var(--muted);font-size:.82rem}.reading-meta span{display:inline-flex;align-items:center;gap:6px}.reading-meta span:before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand-soft)}
.empty-state{padding:52px 28px;text-align:center;border:1px dashed #c9c9d7;border-radius:20px;background:#fff}.empty-state h2{margin:0 0 8px}.empty-state p{margin:0 auto 20px;max-width:560px;color:var(--muted)}
.screen-reader-text{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
@media print{.site-header,.site-footer,.button-row,.detail-actions,.filter-bar,.menu-button{display:none!important}body{background:#fff;color:#000}.shell{width:100%;max-width:none}.section{padding:28px 0}.media-grid,.collection-grid{grid-template-columns:repeat(2,1fr)}a{text-decoration:none}.media-card,.collection-card,.feature-grid article{break-inside:avoid;box-shadow:none}.hero{background:#fff;padding-top:0}.hero-media{display:none}.hero-grid{grid-template-columns:1fr}.detail-layout{grid-template-columns:1fr}.detail-visual{max-width:520px}}