:root{
    --brand:#7C5C8E;
    --brand-soft:#B89ABF;
    --ink:#302C33;
    --ink-deep:#25212A;
    --muted:#726B76;
    --paper:#F8F5F3;
    --surface:#EEE8EF;
    --accent:#D58A45;
    --white:#FFFFFF;
    --line:rgba(48,44,51,.14);
    --shadow:0 18px 46px rgba(37,33,42,.09);
    --radius-lg:28px;
    --radius-md:18px;
    --radius-sm:12px;
    --shell:min(1180px,calc(100% - 40px));
    --reading:min(760px,calc(100% - 40px));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    color:var(--ink);
    background:var(--paper);
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
    line-height:1.72;
    text-rendering:optimizeLegibility;
}
body.modal-open{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
p{margin:0 0 1em}
h1,h2,h3{color:var(--ink-deep);line-height:1.2;margin:0}
h1{font-size:clamp(2.25rem,5vw,4.9rem);letter-spacing:-.045em}
h2{font-size:clamp(1.7rem,3vw,2.65rem);letter-spacing:-.025em}
h3{font-size:1.15rem}
.shell{width:var(--shell);margin-inline:auto}
.reading{width:var(--reading);margin-inline:auto}
.sr-only{
    position:absolute;width:1px;height:1px;padding:0;margin:-1px;
    overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}
.skip-link{
    position:fixed;left:20px;top:16px;z-index:1000;
    transform:translateY(-150%);background:var(--ink-deep);color:#fff;
    padding:10px 14px;border-radius:10px;
}
.skip-link:focus{transform:none}
.site-header{
    position:sticky;top:0;z-index:100;background:rgba(248,245,243,.96);
    border-bottom:1px solid var(--line);backdrop-filter:blur(14px);
}
.header-row{min-height:78px;display:flex;align-items:center;gap:24px}
.brand-lockup{display:flex;align-items:center;gap:10px;min-width:max-content}
.brand-lockup img{width:44px;height:44px;object-fit:cover;border-radius:14px}
.brand-lockup__text{display:grid;line-height:1.05;gap:4px}
.brand-lockup__text strong{font-size:1.08rem;letter-spacing:.04em}
.brand-lockup__text small{color:var(--muted);font-size:.72rem}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{
    padding:10px 12px;border-radius:12px;color:var(--muted);font-size:.94rem;
    transition:background .2s ease,color .2s ease;
}
.main-nav a:hover,.main-nav a:focus-visible{background:var(--surface);color:var(--ink-deep)}
.main-nav a[aria-current="page"]{background:var(--ink-deep);color:#fff}
.search-open{
    border:1px solid var(--line);background:var(--white);color:var(--ink-deep);
    padding:10px 15px;border-radius:999px;white-space:nowrap;
}
.search-open:hover,.search-open:focus-visible{border-color:var(--brand);color:var(--brand)}
.nav-toggle{display:none;border:0;background:transparent;padding:9px}
.nav-toggle span[aria-hidden="true"]{display:block;width:24px;height:2px;background:var(--ink-deep);margin:4px 0}
.search-modal[hidden]{display:none !important}
.search-modal{position:fixed;inset:0;z-index:500;display:grid;place-items:start center;padding:8vh 20px}
.search-modal__backdrop{position:absolute;inset:0;background:rgba(37,33,42,.62)}
.search-modal__panel{
    position:relative;z-index:1;width:min(720px,100%);background:var(--paper);
    border-radius:var(--radius-lg);padding:clamp(28px,5vw,52px);box-shadow:var(--shadow)
}
.search-modal__panel h2{margin-bottom:14px}
.search-modal__panel p{color:var(--muted)}
.search-modal__close{
    position:absolute;right:18px;top:15px;width:42px;height:42px;border:0;border-radius:50%;
    background:var(--surface);color:var(--ink-deep);font-size:1.6rem;line-height:1
}
.search-form{margin-top:26px}
.search-form label{display:block;font-weight:700;margin-bottom:8px}
.search-form__row{display:grid;grid-template-columns:1fr auto;gap:10px}
.search-form input{
    width:100%;border:1px solid var(--line);background:#fff;border-radius:14px;
    padding:14px 16px;color:var(--ink);outline:none
}
.search-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(124,92,142,.12)}
.search-form button,.button{
    border:0;border-radius:14px;background:var(--ink-deep);color:#fff;padding:13px 18px;
    display:inline-flex;align-items:center;justify-content:center;font-weight:700;
}
.button--light{background:var(--white);color:var(--ink-deep);border:1px solid var(--line)}
.button--accent{background:var(--accent)}
.eyebrow{
    display:inline-flex;align-items:center;gap:8px;margin:0 0 13px;
    color:var(--brand);font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase
}
.eyebrow::before{content:"";width:28px;height:2px;background:currentColor}
.hero-editorial{padding:clamp(48px,8vw,110px) 0 44px}
.hero-editorial__grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);gap:60px;align-items:end}
.hero-editorial__lead{max-width:780px}
.hero-editorial h1 span{display:block;color:var(--brand)}
.hero-editorial__intro{font-size:clamp(1.05rem,1.6vw,1.28rem);color:var(--muted);max-width:720px;margin-top:26px}
.hero-editorial__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-editorial__visual{position:relative}
.hero-editorial__visual img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:36px;box-shadow:var(--shadow)}
.hero-editorial__note{
    position:absolute;left:-28px;bottom:28px;width:min(310px,82%);padding:18px 20px;
    background:rgba(248,245,243,.96);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)
}
.hero-editorial__note strong{display:block;margin-bottom:5px}
.hero-editorial__note span{color:var(--muted);font-size:.92rem}
.intent-strip{padding:20px 0 68px}
.intent-strip__inner{
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    display:grid;grid-template-columns:repeat(3,1fr)
}
.intent-strip article{padding:26px 28px}
.intent-strip article+article{border-left:1px solid var(--line)}
.intent-strip strong{display:block;font-size:.83rem;color:var(--brand);margin-bottom:7px}
.intent-strip p{margin:0;color:var(--muted);font-size:.94rem}
.section{padding:clamp(62px,8vw,108px) 0}
.section--surface{background:var(--surface)}
.section--deep{background:var(--ink-deep);color:#eee8ef}
.section--deep h2,.section--deep h3{color:#fff}
.section--deep p{color:#cfc6d2}
.section-heading{display:grid;grid-template-columns:minmax(0,.8fr) minmax(320px,1.2fr);gap:48px;align-items:end;margin-bottom:40px}
.section-heading p{color:var(--muted);max-width:680px;margin:0}
.section--deep .section-heading p{color:#cfc6d2}
.feature-band{
    display:grid;grid-template-columns:minmax(320px,.9fr) minmax(0,1.1fr);gap:0;
    background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden
}
.feature-band__media img{width:100%;height:100%;min-height:430px;object-fit:cover}
.feature-band__content{padding:clamp(28px,5vw,58px);align-self:center}
.feature-band__content h2{margin-bottom:18px}
.feature-band__content p{color:var(--muted)}
.feature-band__links{display:grid;gap:0;margin-top:24px;border-top:1px solid var(--line)}
.feature-band__links a{
    padding:15px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;
    gap:20px;font-weight:700
}
.feature-band__links a::after{content:"→";color:var(--brand)}
.editorial-index{display:grid;grid-template-columns:220px 1fr;gap:54px}
.editorial-index__rail{position:sticky;top:110px;align-self:start}
.editorial-index__rail h2{font-size:1.05rem;margin-bottom:14px}
.editorial-index__rail p{font-size:.9rem;color:var(--muted)}
.editorial-index__rail a{display:block;padding:8px 0;color:var(--muted)}
.editorial-index__rail a:hover{color:var(--brand)}
.article-list{display:grid;border-top:1px solid var(--line)}
.article-row{display:grid;grid-template-columns:110px minmax(220px,.7fr) minmax(260px,1fr) 150px;gap:22px;align-items:start;padding:26px 0;border-bottom:1px solid var(--line)}
.article-row__meta span{font-size:.78rem;color:var(--brand);font-weight:800}
.article-row h3{font-size:1.15rem}
.article-row h3 a:hover{text-decoration:underline;text-underline-offset:4px}
.article-row p{margin:0;color:var(--muted);font-size:.94rem}
.text-link{font-weight:700;color:var(--brand);font-size:.9rem}
.text-link:hover{text-decoration:underline;text-underline-offset:4px}
.topic-links{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.topic-links a{
    display:grid;gap:7px;padding:22px;border:1px solid var(--line);border-radius:16px;
    background:rgba(255,255,255,.5);transition:transform .2s ease,border-color .2s ease
}
.topic-links a:hover{transform:translateY(-2px);border-color:var(--brand-soft)}
.topic-links strong{font-size:1.02rem}
.topic-links span{font-size:.9rem;color:var(--muted)}
.mosaic{display:grid;grid-template-columns:1.2fr .8fr;grid-template-rows:auto auto;gap:18px}
.mosaic__large{grid-row:span 2}
.mosaic figure{margin:0;position:relative;border-radius:24px;overflow:hidden;background:#ddd}
.mosaic img{width:100%;height:100%;object-fit:cover;min-height:240px}
.mosaic__large img{min-height:520px}
.mosaic figcaption{
    position:absolute;left:16px;right:16px;bottom:16px;background:rgba(248,245,243,.94);
    border-radius:14px;padding:12px 14px;font-weight:700
}
.brand-cluster{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.brand-cluster__copy p{color:var(--muted)}
.term-table{border-top:1px solid var(--line)}
.term-row{display:grid;grid-template-columns:150px 1fr;gap:24px;padding:18px 0;border-bottom:1px solid var(--line)}
.term-row strong{color:var(--brand)}
.term-row p{margin:0;color:var(--muted)}
.aux-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.aux-item{padding:24px;border-radius:18px;background:var(--white);border:1px solid var(--line)}
.aux-item h3{margin-bottom:10px}
.aux-item p{font-size:.92rem;color:var(--muted)}
.aux-item a{font-weight:700;color:var(--brand)}
.page-hero{padding:58px 0 36px}
.page-hero__grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:56px;align-items:end}
.page-hero h1{font-size:clamp(2.2rem,4vw,4.2rem);max-width:860px}
.page-hero__summary{font-size:1.08rem;color:var(--muted);max-width:760px;margin-top:20px}
.page-hero__aside{border-left:1px solid var(--line);padding-left:28px;color:var(--muted)}
.page-hero__aside strong{display:block;color:var(--ink-deep);margin-bottom:8px}
.breadcrumbs{padding-top:22px}
.breadcrumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:7px;font-size:.84rem;color:var(--muted)}
.breadcrumbs li:not(:last-child)::after{content:"/";margin-left:7px;color:#aaa}
.breadcrumbs a:hover{color:var(--brand)}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:64px;align-items:start}
.content-main{min-width:0}
.content-sidebar{position:sticky;top:112px}
.sidebar-box{padding:22px;border:1px solid var(--line);border-radius:16px;margin-bottom:16px;background:rgba(255,255,255,.45)}
.sidebar-box h2{font-size:1rem;margin-bottom:11px}
.sidebar-box p,.sidebar-box li{font-size:.88rem;color:var(--muted)}
.sidebar-box ul{padding-left:18px;margin:0}
.sidebar-links{display:grid}
.sidebar-links a{padding:10px 0;border-bottom:1px solid var(--line);font-size:.9rem}
.sidebar-links a:last-child{border-bottom:0}
.prose{font-size:1.02rem}
.prose h2{margin:2.2em 0 .75em;font-size:clamp(1.45rem,2.4vw,2rem)}
.prose h3{margin:1.7em 0 .6em}
.prose p{margin:0 0 1.25em}
.prose ul,.prose ol{padding-left:1.35em;margin:0 0 1.4em}
.prose li+li{margin-top:.45em}
.prose blockquote{
    margin:1.6em 0;padding:18px 22px;border-left:4px solid var(--brand);
    background:var(--surface);border-radius:0 14px 14px 0;color:var(--muted)
}
.article-header{padding:48px 0 20px}
.article-header__category{color:var(--brand);font-weight:800;font-size:.82rem;letter-spacing:.08em}
.article-header h1{font-size:clamp(2rem,4vw,3.7rem);max-width:980px;margin-top:10px}
.article-header__intro{font-size:1.12rem;color:var(--muted);max-width:820px;margin-top:20px}
.article-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.article-tags span{font-size:.78rem;padding:6px 10px;border-radius:999px;background:var(--surface);color:var(--muted)}
.article-body{padding:24px 0 90px}
.article-section{padding:26px 0;border-top:1px solid var(--line)}
.article-section h2{font-size:clamp(1.4rem,2.5vw,2rem);margin-bottom:17px}
.article-section p{font-size:1.01rem;margin-bottom:1.05em}
.related-block{margin-top:44px;padding-top:30px;border-top:2px solid var(--ink-deep)}
.related-block h2{margin-bottom:24px}
.category-ribbon{padding:18px 0 42px}
.category-ribbon__inner{display:flex;flex-wrap:wrap;gap:10px}
.category-ribbon a{padding:8px 12px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:.88rem}
.category-ribbon a:hover{border-color:var(--brand);color:var(--brand)}
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.checklist article{padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--white)}
.checklist h3{margin-bottom:8px}
.checklist p{margin:0;color:var(--muted);font-size:.92rem}
.steps{counter-reset:step;display:grid;gap:0;border-top:1px solid var(--line)}
.step{counter-increment:step;display:grid;grid-template-columns:70px 1fr;gap:24px;padding:28px 0;border-bottom:1px solid var(--line)}
.step::before{
    content:counter(step,decimal-leading-zero);font-weight:900;color:var(--brand);font-size:1.4rem
}
.step h3{margin-bottom:8px}
.step p{margin:0;color:var(--muted)}
.faq-list{display:grid;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:16px;background:var(--white);overflow:hidden}
.faq-item button{
    width:100%;border:0;background:transparent;text-align:left;padding:18px 52px 18px 20px;
    color:var(--ink-deep);font-weight:800;position:relative
}
.faq-item button::after{content:"+";position:absolute;right:20px;top:16px;font-size:1.4rem;color:var(--brand)}
.faq-item.is-open button::after{content:"−"}
.faq-answer{padding:0 20px 18px;color:var(--muted)}
.faq-answer[hidden]{display:none!important}
.notice{
    padding:20px 22px;border-radius:16px;background:rgba(213,138,69,.10);
    border:1px solid rgba(213,138,69,.35)
}
.notice strong{display:block;color:#9e5d22;margin-bottom:6px}
.notice p{margin:0}
.search-results{padding:46px 0 90px}
.search-results__header{margin-bottom:30px}
.search-results__header h1{font-size:clamp(2rem,4vw,3.5rem)}
.search-results__header p{color:var(--muted);margin-top:14px}
.empty-state{padding:42px;border:1px dashed var(--brand-soft);border-radius:20px;background:var(--surface)}
.empty-state h2{font-size:1.4rem;margin-bottom:10px}
.empty-state p{color:var(--muted)}
.error-page{min-height:62vh;display:grid;align-items:center;padding:70px 0}
.error-card{display:grid;grid-template-columns:220px 1fr;gap:50px;align-items:center}
.error-code{font-size:clamp(5rem,14vw,10rem);line-height:.8;color:var(--brand-soft);font-weight:900}
.error-card h1{font-size:clamp(2rem,4vw,3.5rem);margin-bottom:16px}
.error-card p{color:var(--muted)}
.site-footer{margin-top:0;background:var(--ink-deep);color:#d8d0db;padding:64px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:44px}
.footer-brand{display:inline-block;color:#fff;font-weight:900;font-size:1.35rem;margin-bottom:14px}
.footer-about p{max-width:410px;color:#aaa1ae;font-size:.9rem}
.footer-links{display:grid;align-content:start;gap:7px}
.footer-links h2{font-size:.88rem;color:#fff;margin-bottom:10px}
.footer-links a{font-size:.87rem;color:#bdb3c1}
.footer-links a:hover{color:#fff}
.footer-bottom{
    margin-top:48px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;justify-content:space-between;gap:20px;align-items:center
}
.footer-bottom p{margin:0;font-size:.8rem;color:#8f8793}
.back-top{font-size:.82rem;color:#fff}
.split-copy{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.split-copy p{color:var(--muted)}
.index-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.index-card{padding:24px;border:1px solid var(--line);border-radius:18px;background:var(--white)}
.index-card small{display:block;color:var(--brand);font-weight:800;margin-bottom:8px}
.index-card h3{margin-bottom:10px}
.index-card p{color:var(--muted);font-size:.92rem}
.index-card a{font-weight:700;color:var(--brand)}
.deep-callout{
    display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:54px;align-items:center;
    padding:40px;border:1px solid rgba(255,255,255,.15);border-radius:24px
}
.deep-callout p{color:#cfc6d2}
.deep-callout img{border-radius:18px;aspect-ratio:4/3;object-fit:cover}
.meta-list{display:grid;gap:0;border-top:1px solid var(--line)}
.meta-list div{display:grid;grid-template-columns:180px 1fr;gap:24px;padding:15px 0;border-bottom:1px solid var(--line)}
.meta-list dt{font-weight:800}
.meta-list dd{margin:0;color:var(--muted)}
.contact-box{padding:28px;border:1px solid var(--line);border-radius:20px;background:var(--white)}
.contact-box h2{margin-bottom:14px}
.contact-box p{color:var(--muted)}
.search-inline{display:grid;grid-template-columns:1fr auto;gap:10px;max-width:640px;margin-top:26px}
.search-inline input{border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.search-inline button{border:0;background:var(--brand);color:#fff;border-radius:14px;padding:0 20px;font-weight:800}
@media (max-width:1100px){
    .main-nav{position:absolute;left:0;right:0;top:100%;display:none;background:var(--paper);border-bottom:1px solid var(--line);padding:12px 20px;box-shadow:0 16px 24px rgba(37,33,42,.08)}
    .main-nav.is-open{display:grid}
    .main-nav a{padding:12px}
    .nav-toggle{display:block;margin-left:auto}
    .search-open{margin-left:0}
    .hero-editorial__grid{grid-template-columns:1fr 340px;gap:40px}
    .article-row{grid-template-columns:100px 1fr 1.1fr}
    .article-row .text-link{grid-column:2/-1}
    .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
    .footer-links:last-child{grid-column:2/4}
}
@media (max-width:900px){
    :root{--shell:min(100% - 30px,1180px);--reading:min(100% - 30px,760px)}
    .hero-editorial__grid,.page-hero__grid,.section-heading,.content-layout,.deep-callout{grid-template-columns:1fr}
    .hero-editorial__visual{max-width:620px}
    .hero-editorial__visual img{aspect-ratio:16/9}
    .hero-editorial__note{left:18px;bottom:18px}
    .page-hero__aside{border-left:0;border-top:1px solid var(--line);padding:20px 0 0}
    .section-heading{gap:18px}
    .feature-band{grid-template-columns:1fr}
    .feature-band__media img{min-height:320px;max-height:440px}
    .editorial-index{grid-template-columns:1fr}
    .editorial-index__rail{position:static}
    .content-sidebar{position:static;display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .sidebar-box{margin:0}
    .brand-cluster,.split-copy{grid-template-columns:1fr}
    .index-grid{grid-template-columns:repeat(2,1fr)}
    .deep-callout img{max-width:520px}
}
@media (max-width:720px){
    .header-row{min-height:68px;gap:10px}
    .brand-lockup__text small{display:none}
    .search-open{font-size:.86rem;padding:8px 11px}
    .hero-editorial{padding-top:38px}
    .hero-editorial__grid{grid-template-columns:1fr}
    .hero-editorial__visual{order:-1}
    .hero-editorial__visual img{aspect-ratio:4/3;border-radius:22px}
    .hero-editorial__note{position:static;width:100%;margin-top:10px}
    .intent-strip__inner{grid-template-columns:1fr}
    .intent-strip article+article{border-left:0;border-top:1px solid var(--line)}
    .topic-links,.aux-strip,.checklist,.content-sidebar,.footer-grid,.index-grid{grid-template-columns:1fr}
    .mosaic{grid-template-columns:1fr;grid-template-rows:auto}
    .mosaic__large{grid-row:auto}
    .mosaic__large img,.mosaic img{min-height:260px}
    .article-row{grid-template-columns:1fr;gap:9px;padding:22px 0}
    .article-row .text-link{grid-column:auto}
    .term-row{grid-template-columns:1fr;gap:6px}
    .footer-links:last-child{grid-column:auto}
    .footer-bottom{align-items:flex-start;flex-direction:column}
    .error-card{grid-template-columns:1fr;gap:24px}
    .meta-list div{grid-template-columns:1fr;gap:4px}
}
@media (max-width:520px){
    :root{--shell:calc(100% - 24px);--reading:calc(100% - 24px)}
    body{font-size:15px}
    h1{letter-spacing:-.035em}
    .site-header{position:relative}
    .brand-lockup img{width:38px;height:38px;border-radius:11px}
    .brand-lockup__text strong{font-size:1rem}
    .hero-editorial__actions{display:grid}
    .button{width:100%}
    .search-form__row,.search-inline{grid-template-columns:1fr}
    .search-form button,.search-inline button{padding:13px}
    .feature-band__content{padding:24px}
    .article-header{padding-top:34px}
    .step{grid-template-columns:46px 1fr;gap:12px}
    .search-modal{padding:12px;align-items:start}
    .search-modal__panel{margin-top:22px;padding:28px 20px 22px}
}
@media (prefers-reduced-motion:reduce){
    *,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}
@media print{
    .site-header,.site-footer,.search-modal,.content-sidebar,.hero-editorial__visual,.back-top{display:none!important}
    body{background:#fff;color:#000}
    .shell,.reading{width:100%}
    a{text-decoration:underline}
}