/* ============================================================
   新葡萄京空间 · /assets/site.css
   藤蔓档案：技术蓝图网格 · 珠宝色分区 · 前强后稳
   ============================================================ */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,dl,dd,figure,blockquote{margin:0}
ul,ol{padding:0}
li{list-style:none}
img,svg,video{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
table{border-collapse:collapse;width:100%}
[hidden]{display:none!important}
#main-content{scroll-margin-top:96px}

/* ---------- 2. tokens ---------- */
:root{
  --ink:#1B0B2B;
  --ink-2:#2A1240;
  --grape:#6D2E8F;
  --grape-lite:#A46FC4;
  --green:#9BC53D;
  --green-deep:#5F7F22;
  --gold:#E3B448;
  --paper:#F6F2E9;
  --line:#D8D2C4;
  --indigo:#1E2F4D;
  --wine:#7A2436;
  --text:#241633;
  --shell:1280px;
  --gutter:clamp(18px,4vw,40px);
  --header-h:72px;
  --sans:"HarmonyOS Sans","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,serif;
  --mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}

/* ---------- 3. 基底与中文排版 ---------- */
body{
  font-family:var(--sans);
  font-size:clamp(15.5px,1.05vw,17px);
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background-color:var(--paper);
  background-image:
    linear-gradient(rgba(109,46,143,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(109,46,143,.055) 1px,transparent 1px);
  background-size:64px 64px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{font-family:var(--serif);font-weight:700;line-height:1.18;letter-spacing:.005em;color:inherit}
h1{font-size:clamp(2.4rem,6vw,4.8rem)}
h2{font-size:clamp(1.5rem,3vw,2.4rem)}
h3{font-size:clamp(1.15rem,1.8vw,1.5rem)}
h4{font-size:1.05rem}
h5{font-size:.95rem;font-family:var(--sans);letter-spacing:.08em}
a{color:var(--grape);text-decoration:none}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--green);outline-offset:3px}
.mono{font-family:var(--mono);font-weight:500;letter-spacing:.02em}

/* ---------- 4. 布局骨架 ---------- */
.shell{width:calc(100% - var(--gutter) * 2);max-width:var(--shell);margin-inline:auto}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,2.2vw,28px)}
.grid{display:grid;gap:clamp(14px,2vw,24px)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-12{grid-column:span 12}
.offset-x{margin-left:clamp(0px,2vw,24px)}
.rule-line{height:1px;border:0;background:var(--line);margin:clamp(20px,3vw,34px) 0}

/* ---------- 5. 分区珠宝色 ---------- */
.section{padding:clamp(44px,6.5vw,92px) 0}
.section--paper{background:var(--paper)}
.section--ink{background:var(--ink);color:var(--paper);--text:var(--paper);--line:rgba(216,210,196,.26)}
.section--indigo{background:var(--indigo);color:var(--paper);--text:var(--paper);--line:rgba(216,210,196,.26)}
.section--wine{background:var(--wine);color:var(--paper);--text:var(--paper);--line:rgba(216,210,196,.3)}
.section--ink a,.section--indigo a,.section--wine a{color:var(--paper)}
.section--ink .eyebrow,.section--indigo .eyebrow,.section--wine .eyebrow{color:var(--grape-lite);border-bottom-color:rgba(164,111,196,.55)}
.section--ink .filter-status,.section--indigo .filter-status,.section--wine .filter-status{color:var(--gold)}
.section--ink .card,.section--indigo .card,.section--wine .card{background:rgba(246,242,233,.06);border-color:rgba(216,210,196,.3)}
.section--ink .card-title,.section--indigo .card-title,.section--wine .card-title{color:var(--paper)}
.section--ink .card-meta,.section--indigo .card-meta,.section--wine .card-meta{color:var(--gold)}
.section--ink .card-text,.section--indigo .card-text,.section--wine .card-text{color:rgba(246,242,233,.86)}
.section--ink .tag,.section--indigo .tag,.section--wine .tag{color:var(--paper);border-color:rgba(216,210,196,.45);background:rgba(246,242,233,.06)}
.section--ink .prose a,.section--indigo .prose a,.section--wine .prose a{color:var(--paper);border-bottom-color:var(--grape-lite)}

/* ---------- 6. 字体组件 ---------- */
.eyebrow{display:inline-block;font-family:var(--sans);font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--grape);border-bottom:1px solid var(--line);padding-bottom:5px}
.page-head{padding:clamp(26px,4vw,54px) 0 clamp(18px,2.6vw,32px)}
.page-title{margin:14px 0 16px}
.lede{font-size:clamp(15.5px,1.4vw,18px);line-height:1.9;max-width:52ch;color:inherit;opacity:.92}
.prose{max-width:720px}
.prose p{margin-bottom:1.05em;max-width:68ch}
.prose h2{margin:1.9em 0 .6em}
.prose h3{margin:1.5em 0 .5em}
.prose ul,.prose ol{margin:0 0 1.1em;padding-left:1.4em}
.prose ul li{list-style:square}
.prose ol li{list-style:decimal}
.prose li{margin-bottom:.4em}
.prose a{color:var(--grape);border-bottom:1px solid var(--grape-lite)}
.prose a:hover{border-bottom-color:var(--green)}
.note-aside{border-left:2px solid var(--gold);padding:4px 0 4px 14px;font-size:14px;line-height:1.8;opacity:.88;max-width:40ch}

/* ---------- 7. 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;font-size:13.5px;font-weight:700;letter-spacing:.06em;padding:9px 16px;border-radius:2px;border:1px solid transparent;text-decoration:none;cursor:pointer;transition:background-color .18s ease,color .18s ease,border-color .18s ease}
.btn:hover{text-decoration:none}
.btn-solid{background:var(--green);color:#16210A;border-color:var(--green)}
.btn-solid:hover{background:#AFD857;border-color:#AFD857}
.btn-line{background:transparent;color:var(--paper);border-color:rgba(246,242,233,.45)}
.btn-line:hover{border-color:var(--green);color:#fff}
.btn-ghost{background:rgba(109,46,143,.1);color:var(--grape);border-color:var(--grape-lite)}
.btn-ghost:hover{background:rgba(109,46,143,.18);color:var(--ink)}
.copy-btn{font-family:var(--mono);font-size:11px;letter-spacing:.04em;padding:4px 8px;background:transparent;border:1px solid var(--line);color:var(--green-deep);border-radius:2px;cursor:pointer;transition:border-color .18s ease,background-color .18s ease}
.copy-btn:hover{border-color:var(--green)}
.copy-btn[data-copied]{border-color:var(--green);background:rgba(155,197,61,.16)}

/* ---------- 8. 头部命令栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--ink);
  color:var(--paper);
  --header-h:72px;
  border-bottom:1px solid rgba(164,111,196,.32);
}
.site-header::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(164,111,196,.6) 0 1px,transparent 1px 24px);
}
.site-header[data-scrolled]{--header-h:56px;box-shadow:0 10px 26px rgba(27,11,43,.3)}
.skip-link{position:fixed;top:-70px;left:16px;z-index:120;padding:10px 16px;background:var(--green);color:#16210A;font-size:14px;font-weight:700;border-radius:2px;transition:top .18s ease}
.skip-link:focus{top:12px;text-decoration:none}
.header-shell{
  display:flex;align-items:center;gap:clamp(14px,2vw,26px);
  min-height:var(--header-h);
  transition:min-height .26s ease;
}
.brand{display:flex;flex-direction:column;gap:1px;padding:6px 0;color:var(--paper);text-decoration:none;flex:none}
.brand:hover{text-decoration:none}
.brand-name{font-family:var(--serif);font-weight:700;font-size:clamp(17px,1.5vw,20px);line-height:1.2;letter-spacing:.03em;white-space:nowrap}
.brand-sub{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;color:var(--grape-lite);white-space:nowrap}
.header-status{display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;letter-spacing:.05em;color:var(--grape-lite);white-space:nowrap;flex:none}
.status-led{width:6px;height:6px;flex:none;background:var(--green);box-shadow:0 0 0 3px rgba(155,197,61,.16)}
.primary-nav{display:flex;align-items:center;gap:clamp(10px,1.4vw,22px);margin-left:auto}
.nav-list{display:flex;align-items:center;gap:clamp(8px,1.1vw,18px)}
.nav-item{list-style:none}
.nav-link{display:inline-flex;align-items:baseline;gap:7px;padding:9px 1px;font-size:14.5px;color:rgba(246,242,233,.8);border-bottom:1px solid transparent;text-decoration:none;transition:color .18s ease,border-color .18s ease;white-space:nowrap}
.nav-link:hover{color:#fff;text-decoration:none}
.nav-link:hover .nav-index{color:var(--gold)}
.nav-link[aria-current="page"]{color:#fff;border-bottom-color:var(--gold)}
.nav-link[aria-current="page"] .nav-index{color:var(--gold)}
.nav-index{font-family:var(--mono);font-size:10px;letter-spacing:.02em;color:var(--grape-lite);transition:color .18s ease}
.header-actions{display:flex;align-items:center;gap:8px}
.header-actions .btn{white-space:nowrap}
.nav-toggle{display:none;align-items:center;gap:9px;padding:8px 12px;background:transparent;border:1px solid rgba(246,242,233,.4);color:var(--paper);border-radius:2px;cursor:pointer;font-size:12.5px;letter-spacing:.08em}
.nav-toggle:hover{border-color:var(--green)}
.nav-toggle-label{white-space:nowrap}
.nav-toggle-lines{display:grid;gap:4px;width:16px}
.nav-toggle-lines i{display:block;height:1.5px;background:currentColor;transition:transform .2s ease}
.nav-toggle[aria-expanded="true"]{border-color:var(--green);color:#fff}
.nav-toggle[aria-expanded="true"] .nav-toggle-lines i:first-child{transform:translateY(2.75px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-lines i:last-child{transform:translateY(-2.75px) rotate(-45deg)}
.header-progress{position:absolute;left:0;bottom:0;height:2px;width:0;background:linear-gradient(90deg,var(--green),var(--gold));transition:width .08s linear}

/* ---------- 9. 页脚 ---------- */
.site-footer{background:var(--paper);color:var(--text);border-top:1px solid var(--line)}
.trust-band{background:var(--ink);color:var(--paper);border-bottom:1px solid rgba(164,111,196,.32)}
.trust-inner{display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;padding:12px 0;font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--grape-lite)}
.trust-left,.trust-right{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.trust-key{color:rgba(246,242,233,.55);letter-spacing:.1em}
.trust-band .mono{color:var(--gold)}
.dot-sep{width:4px;height:4px;background:var(--grape-lite);display:inline-block;transform:rotate(45deg)}
.footer-main{padding:clamp(36px,5vw,64px) 0 clamp(8px,1.4vw,14px)}
.footer-shell{display:grid;grid-template-columns:minmax(260px,1.5fr) repeat(3,minmax(150px,1fr));gap:clamp(20px,3vw,40px)}
.footer-brand{max-width:46ch}
.footer-name{font-family:var(--serif);font-size:22px;font-weight:700;margin-bottom:6px}
.footer-tagline{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;color:var(--grape);margin-bottom:16px}
.footer-contact{display:grid;gap:8px;margin-bottom:14px}
.contact-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.contact-value{font-family:var(--mono);font-size:12.5px;line-height:1.7;color:var(--text);word-break:break-word}
.footer-note{font-size:12px;line-height:1.75;color:rgba(36,22,51,.66);max-width:46ch}
.footer-note.mono{color:var(--grape);letter-spacing:.06em}
.footer-col-title{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--grape);padding-bottom:8px;margin-bottom:12px;border-bottom:1px solid var(--line)}
.footer-list{display:grid;gap:9px}
.footer-link{font-size:14px;color:var(--text);border-bottom:1px solid transparent;transition:color .18s ease,border-color .18s ease}
.footer-link:hover{color:var(--grape);border-bottom-color:var(--green);text-decoration:none}
.footer-vine{
  height:14px;margin-top:clamp(20px,3vw,34px);
  border-bottom:1px solid var(--line);
  background-image:repeating-linear-gradient(90deg,var(--grape-lite) 0 1px,transparent 1px 28px);
  background-repeat:repeat-x;
  background-size:auto 7px;
  opacity:.75;
}
.footer-base{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 20px;padding:14px 0 26px;border-top:1px solid var(--line)}
.footer-legal{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:12.5px;color:var(--text)}
.region-mark{display:inline-flex;align-items:center;padding:2px 8px;border:1px solid var(--grape);color:var(--grape);font-size:11px;letter-spacing:.16em;border-radius:2px}

/* ---------- 10. 通用组件 ---------- */
.breadcrumb{margin:0 0 18px}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;letter-spacing:.04em}
.breadcrumb-item{display:flex;align-items:center;gap:8px}
.breadcrumb-link{color:var(--grape);border-bottom:1px solid transparent}
.breadcrumb-link:hover{border-bottom-color:var(--green);text-decoration:none}
.breadcrumb-sep{color:var(--grape-lite)}
.breadcrumb-current{opacity:.7}
.panel-glass{background:rgba(246,242,233,.08);border:1px solid rgba(216,210,196,.3);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);padding:clamp(14px,1.8vw,22px);border-radius:2px}
.panel-glass--light{background:rgba(255,255,255,.55);border-color:var(--line)}
.card{display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--line);border-radius:2px;padding:clamp(14px,1.8vw,20px)}
.card-title{font-family:var(--serif);font-size:1.05rem;font-weight:700;line-height:1.4}
.card-meta{display:flex;flex-wrap:wrap;gap:10px;font-family:var(--mono);font-size:11.5px;letter-spacing:.04em;color:var(--grape)}
.card-text{font-size:14.5px;line-height:1.8;opacity:.9}
.card-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.06em;padding:3px 9px;border:1px solid var(--line);border-radius:2px;color:var(--text);background:rgba(255,255,255,.5)}
.tag--gold{border-color:var(--gold);color:#8A6410}
.tag--green{border-color:var(--green-deep);color:var(--green-deep)}
.tag--grape{border-color:var(--grape);color:var(--grape)}
.tag--wine{border-color:var(--wine);color:var(--wine)}
.index-list{display:grid;gap:2px}
.index-item{display:flex;align-items:baseline;gap:12px;padding:9px 10px;border-bottom:1px solid var(--line);color:inherit;transition:background-color .18s ease,color .18s ease}
.index-item:hover{background:rgba(109,46,143,.07);color:var(--grape);text-decoration:none}
.index-no{flex:none;min-width:54px;font-family:var(--mono);font-size:12px;color:var(--gold)}
.index-label{font-size:15px}
.path{position:relative}
.path-node{position:relative;padding:0 0 26px 52px}
.path-node::before{content:attr(data-step);position:absolute;left:0;top:0;width:34px;height:34px;display:grid;place-items:center;font-family:var(--mono);font-size:12px;color:var(--gold);border:1px solid var(--gold)}
.path-node::after{content:"";position:absolute;left:17px;top:36px;bottom:0;width:1px;background:linear-gradient(var(--grape-lite),rgba(164,111,196,0))}
.path-node:last-child{padding-bottom:0}
.path-node:last-child::after{display:none}
.path-node[data-state="active"]::before{background:var(--green);border-color:var(--green);color:#16210A;font-weight:700}
.detail{border:1px solid var(--line);border-radius:2px;background:rgba(255,255,255,.5)}
.detail + .detail{margin-top:8px}
.detail-summary{display:flex;align-items:baseline;gap:10px;padding:12px 14px;font-weight:700;cursor:pointer}
.detail-summary::-webkit-details-marker{display:none}
.detail-summary::before{content:"＋";font-family:var(--mono);color:var(--grape)}
.detail[open] .detail-summary::before{content:"－"}
.detail-body{padding:0 14px 14px;font-size:15px;line-height:1.85}
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;padding:12px;border:1px solid rgba(216,210,196,.3);background:rgba(246,242,233,.08);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:2px}
.filter-btn{font-size:13px;letter-spacing:.04em;padding:6px 12px;background:transparent;color:inherit;border:1px solid rgba(216,210,196,.45);border-radius:2px;cursor:pointer;transition:background-color .18s ease,border-color .18s ease,color .18s ease}
.filter-btn:hover{border-color:var(--green)}
.filter-btn[aria-pressed="true"]{background:var(--green);border-color:var(--green);color:#16210A;font-weight:700}
.filter-status{margin-top:10px;font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--grape)}
.media{margin:0}
.media-frame{position:relative;overflow:hidden;aspect-ratio:4/3;border:1px solid var(--line);border-radius:2px;background:linear-gradient(135deg,var(--ink),var(--indigo))}
.media-frame::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,rgba(246,242,233,.12) 0 1px,transparent 1px 32px),repeating-linear-gradient(0deg,rgba(246,242,233,.12) 0 1px,transparent 1px 32px)}
.media-frame img{position:relative;width:100%;height:100%;object-fit:cover}
.media-frame::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,rgba(27,11,43,0) 50%,rgba(27,11,43,.42))}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:3/4}
.media-caption{margin-top:8px;font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--grape)}
.media-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}

/* ---------- 11. 动效状态 ---------- */
[data-reveal]{opacity:0;transform:translateY(8px);transition:opacity .5s ease,transform .5s ease}
[data-reveal].is-visible{opacity:1;transform:none}
[data-path]{stroke-dasharray:var(--len,420);stroke-dashoffset:var(--len,420);transition:stroke-dashoffset .8s ease}
[data-path].is-drawn{stroke-dashoffset:0}
[data-filter-item]{transition:opacity .16s linear}
[data-filter-list].is-switching [data-filter-item]{opacity:0;transition:opacity .12s linear}
[data-index-key]{transition:color .2s ease,border-color .2s ease,background-color .2s ease}
[data-index-key].is-linked{color:var(--gold);border-color:var(--gold)}

/* ---------- 12. 响应式 ---------- */
@media (max-width:1200px){
  .header-status{display:none}
}
@media (max-width:1024px){
  .footer-shell{grid-template-columns:repeat(2,minmax(0,1fr))}
  .col-3,.col-4,.col-5{grid-column:span 6}
  .col-7,.col-8,.col-9{grid-column:span 12}
}
@media (max-width:960px){
  .site-header{--header-h:62px}
  .brand-sub{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .primary-nav{
    position:absolute;left:0;right:0;top:100%;
    display:block;margin:0;
    background:var(--ink);
    border-top:1px solid rgba(164,111,196,.35);
    box-shadow:0 18px 36px rgba(27,11,43,.4);
    padding:6px var(--gutter) 18px;
    max-height:0;overflow:hidden;visibility:hidden;opacity:0;
    transition:max-height .32s ease,opacity .22s ease,visibility .22s ease;
  }
  .primary-nav[data-open]{max-height:min(76vh,540px);overflow-y:auto;visibility:visible;opacity:1}
  .nav-list{display:block}
  .nav-item{border-bottom:1px solid rgba(216,210,196,.16)}
  .nav-item:first-child{border-top:1px solid rgba(216,210,196,.16)}
  .nav-link{display:flex;align-items:baseline;gap:14px;padding:15px 2px;font-size:16px;border-bottom:0}
  .nav-index{min-width:20px}
  .header-actions{gap:10px;margin-top:18px}
  .header-actions .btn{flex:1;padding:11px 10px}
}
@media (max-width:640px){
  .col-6,.col-12{grid-column:span 12}
  .footer-shell{grid-template-columns:1fr}
  .footer-base{padding-bottom:22px}
  .page-title{font-size:clamp(2rem,8vw,2.6rem)}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}
  [data-reveal]{opacity:1;transform:none}
  [data-path]{stroke-dashoffset:0}
  .skip-link{transition:none}
}