/* ==========================================================================
   DAFA168 安装中心 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 头部 / 页脚 / 基础组件
   隐喻：夜间仪表盘 + 手边工具包（刻度、编号、状态灯、工具位）
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:118px}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd,hr{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}

/* ---------- 2. 变量 ---------- */
:root{
  --ink-900:#0A1030;
  --ink-850:#101737;
  --ink-800:#141C42;
  --ink-750:#1A2350;
  --line:#2A3567;
  --line-soft:rgba(42,53,103,.55);
  --orange:#FF6B1A;
  --orange-soft:#FF9A4D;
  --teal:#1FE0B6;
  --amber:#FFC24B;
  --paper:#F6F2E9;
  --muted:#9AA4CC;
  --font-sans:'HarmonyOS Sans SC','Source Han Sans SC','Noto Sans SC',-apple-system,BlinkMacSystemFont,'Microsoft YaHei',sans-serif;
  --font-mono:'JetBrains Mono','SFMono-Regular',ui-monospace,'Courier New',monospace;
  --r-xl:28px;
  --r-lg:22px;
  --r-md:16px;
  --r-pill:999px;
  --maxw:1180px;
  --pad:clamp(18px,4vw,44px);
  --shadow-panel:0 20px 44px -30px rgba(0,0,0,.95);
}

/* ---------- 3. 基础与中文排版 ---------- */
body{
  background-color:var(--ink-900);
  background-image:repeating-linear-gradient(104deg,rgba(246,242,233,.022) 0 1px,transparent 1px 5px);
  background-attachment:fixed;
  color:var(--muted);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{color:var(--paper);font-weight:800;line-height:1.2;letter-spacing:-.01em;text-wrap:balance}
strong,b{color:var(--paper);font-weight:700}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:6px}
::selection{background:var(--orange);color:#200C00}

.d168-container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}
.d168-section{padding-block:clamp(48px,7vw,96px)}
.d168-section--tight{padding-block:clamp(26px,4vw,52px)}
.d168-display{font-size:clamp(34px,5vw,64px);line-height:1.1}
.d168-title{font-size:clamp(24px,3vw,36px)}
.d168-lede{font-size:17px;line-height:1.8;max-width:36em;color:var(--muted)}
.d168-prose{max-width:38em;font-size:17px;line-height:1.85}
.d168-prose p + p{margin-top:14px}
.d168-prose h2{margin-top:28px;font-size:clamp(20px,2.2vw,26px)}
.d168-prose h3{margin-top:22px;font-size:19px}
.d168-mono{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.02em}
.d168-eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--orange);text-transform:uppercase}
.d168-eyebrow::before{content:"";width:22px;height:1px;background:currentColor;opacity:.7}
.d168-eyebrow--teal{color:var(--teal)}
.d168-eyebrow--muted{color:var(--muted)}
.d168-section__head{display:grid;gap:12px;margin-bottom:clamp(20px,3vw,34px)}

/* ---------- 4. 头部 ---------- */
.d168-header{
  position:sticky;top:0;z-index:70;
  background:rgba(10,16,48,.965);
  border-bottom:1px solid var(--line);
}
.d168-progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:90;pointer-events:none}
.d168-progress__fill{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--orange),var(--teal));box-shadow:0 0 10px rgba(31,224,182,.45);transition:width .12s linear}
.d168-skip{position:absolute;left:14px;top:-64px;z-index:99;padding:10px 18px;border-radius:var(--r-pill);background:var(--orange);color:#200C00;font-weight:700;font-size:14px;transition:top .18s ease}
.d168-skip:focus{top:14px}

.d168-header__top{
  display:flex;align-items:center;justify-content:space-between;gap:22px;
  padding-block:12px;border-bottom:1px solid var(--line-soft);
}
.d168-brand{display:flex;align-items:center;gap:14px;min-width:0}
.d168-brand__mark{
  flex:none;position:relative;width:38px;height:38px;border-radius:12px;
  background:linear-gradient(150deg,var(--orange),var(--orange-soft));
  box-shadow:0 0 0 1px rgba(255,107,26,.35),0 12px 26px -16px rgba(255,107,26,.95);
}
.d168-brand__mark::before{
  content:"";position:absolute;left:9px;right:9px;bottom:11px;height:2px;border-radius:2px;
  background:rgba(10,16,48,.85);
  box-shadow:0 -7px 0 rgba(10,16,48,.6),0 -14px 0 rgba(10,16,48,.38);
}
.d168-brand__text{min-width:0;display:block}
.d168-brand__name{display:block;color:var(--paper);font-weight:800;font-size:17px;line-height:1.4}
.d168-brand__line{display:block;font-family:var(--font-mono);font-size:12px;color:var(--muted);line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.d168-headmeta{display:flex;align-items:center;gap:20px;flex:none}
.d168-headmeta__item{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12.5px;color:var(--muted);white-space:nowrap}
.d168-dot{width:7px;height:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 3px rgba(31,224,182,.16);animation:d168-breathe 2.4s ease-in-out infinite}

.d168-header__bar{display:flex;align-items:center;justify-content:space-between;gap:18px}
.d168-header__actions{display:flex;align-items:center;gap:10px;flex:none}
.d168-nav{display:flex;align-items:center;min-width:0}
.d168-nav__head{display:none}
.d168-nav__list{display:flex;align-items:center;gap:clamp(8px,1.8vw,24px)}
.d168-nav__item{position:relative}
.d168-nav__link{
  position:relative;display:inline-flex;align-items:center;gap:9px;
  padding:17px 3px 15px;font-size:15px;font-weight:600;color:var(--muted);
  transition:color .2s ease;
}
.d168-nav__link::before{
  content:"";width:12px;height:2px;border-radius:2px;background:var(--line);
  transition:background .2s ease,width .2s ease,box-shadow .2s ease;
}
.d168-nav__link:hover{color:var(--paper)}
.d168-nav__link:hover::before{background:var(--orange-soft)}
.d168-nav__link[aria-current="page"]{color:var(--paper)}
.d168-nav__link[aria-current="page"]::before{width:20px;height:3px;background:var(--orange);box-shadow:0 0 12px rgba(255,107,26,.85)}
.d168-nav__foot{display:none}
.d168-nav__footline{display:block;font-family:var(--font-mono);font-size:12.5px;color:var(--muted)}

.d168-navtoggle{
  display:none;align-items:center;gap:10px;
  padding:9px 15px;border:1px solid var(--line);border-radius:var(--r-pill);
  background:var(--ink-800);color:var(--paper);font-size:13.5px;font-weight:700;
}
.d168-navtoggle__bars{display:grid;gap:4px;width:16px}
.d168-navtoggle__bars i{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .22s ease,opacity .22s ease}
.d168-navtoggle[aria-expanded="true"]{border-color:var(--orange);color:var(--orange)}
.d168-navtoggle[aria-expanded="true"] .d168-navtoggle__bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.d168-navtoggle[aria-expanded="true"] .d168-navtoggle__bars i:nth-child(2){opacity:0}
.d168-navtoggle[aria-expanded="true"] .d168-navtoggle__bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.d168-scrim{
  position:fixed;inset:0;z-index:65;background:rgba(6,10,26,.7);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.d168-scrim[data-open="true"]{opacity:1;visibility:visible}

/* ---------- 5. 页脚 ---------- */
.d168-footer{position:relative;margin-top:clamp(40px,7vw,92px);background:var(--ink-850);border-top:1px solid var(--line)}
.d168-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:8px;
  background-image:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 28px);
  background-repeat:repeat-x;background-size:28px 8px;
}
.d168-footer__inner{padding-block:clamp(38px,5vw,68px) clamp(24px,3vw,34px)}
.d168-footer__grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:clamp(24px,4vw,58px)}
.d168-footer__brandname{display:inline-flex;align-items:center;gap:10px;color:var(--paper);font-weight:800;font-size:18px}
.d168-footer__brandname::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 3px rgba(31,224,182,.14)}
.d168-footer__brandline{margin-top:12px;font-size:15px;line-height:1.75;max-width:32em;color:var(--muted)}
.d168-footer__brandline--mono{font-family:var(--font-mono);font-size:12.5px;color:var(--line);letter-spacing:.04em}
.d168-footer__title{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--paper)}
.d168-footer__list{margin-top:16px;display:grid;gap:10px}
.d168-footer__link{display:inline-flex;align-items:center;gap:9px;font-size:15px;color:var(--muted);transition:color .2s ease}
.d168-footer__link::before{content:"";width:8px;height:1px;background:var(--line);transition:width .2s ease,background .2s ease}
.d168-footer__link:hover{color:var(--paper)}
.d168-footer__link:hover::before{width:16px;background:var(--orange)}
.d168-footer__link[aria-current="page"]{color:var(--orange)}
.d168-footer__link[aria-current="page"]::before{width:16px;background:var(--orange)}
.d168-footer__contact{
  margin-top:clamp(26px,4vw,42px);padding-top:20px;border-top:1px solid var(--line-soft);
  display:grid;gap:6px;font-family:var(--font-mono);font-size:12.5px;color:var(--muted);
}
.d168-footer__contactline{line-height:1.7}
.d168-footer__bottom{
  margin-top:22px;padding-top:16px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
}
.d168-footer__legal{font-family:var(--font-mono);font-size:12px;color:var(--line)}

/* ---------- 6. 按钮 ---------- */
.d168-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:46px;padding:0 22px;border-radius:var(--r-pill);
  border:1px solid transparent;font-weight:700;font-size:15px;
  transition:transform .16s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.d168-btn--primary{background:var(--orange);color:#200C00;box-shadow:0 14px 30px -20px rgba(255,107,26,.95)}
.d168-btn--primary:hover{background:var(--orange-soft);transform:translateY(-1px)}
.d168-btn--ghost{border-color:var(--line);background:rgba(20,28,66,.7);color:var(--paper)}
.d168-btn--ghost:hover{border-color:var(--teal);color:var(--teal)}
.d168-btn--teal{background:var(--teal);color:#04231C}
.d168-btn--teal:hover{background:#5cf0cf;transform:translateY(-1px)}
.d168-btn--sm{min-height:38px;padding:0 16px;font-size:13.5px}

/* ---------- 7. 面板 / 网格 / 分隔 ---------- */
.d168-panel{background:var(--ink-800);border:1px solid var(--line);border-radius:var(--r-xl);padding:clamp(20px,3vw,32px);box-shadow:var(--shadow-panel)}
.d168-panel--flush{padding:0;overflow:hidden}
.d168-panel--quiet{background:rgba(20,28,66,.5)}
.d168-grid{display:grid;gap:clamp(16px,2.4vw,26px)}
.d168-grid--2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.d168-grid--3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.d168-grid--asym{grid-template-columns:minmax(0,1.7fr) minmax(0,1fr)}
.d168-rule{height:1px;border:0;background:var(--line)}
.d168-rule--ticks{
  height:8px;border:0;border-top:1px solid var(--line);background-color:transparent;
  background-image:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 26px);
  background-repeat:repeat-x;background-size:26px 8px;
}
.d168-band{position:relative;background:var(--ink-800);border-block:1px solid var(--line);padding-block:clamp(20px,3vw,32px)}

/* ---------- 8. 索引 / 状态 / 版本号 ---------- */
.d168-chips{display:flex;flex-wrap:wrap;gap:10px}
.d168-chip{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(20,28,66,.6);color:var(--muted);
  font-family:var(--font-mono);font-size:12.5px;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.d168-chip:hover{border-color:var(--orange-soft);color:var(--paper)}
.d168-chip[aria-pressed="true"],.d168-chip[data-selected="true"]{background:var(--orange);border-color:var(--orange);color:#200C00}
.d168-chip--done{color:var(--teal);border-color:rgba(31,224,182,.42)}
.d168-chip--warn{color:var(--amber);border-color:rgba(255,194,75,.42)}
.d168-status{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-mono);font-size:12.5px;color:var(--muted)}
.d168-status::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--muted);box-shadow:0 0 0 3px rgba(154,164,204,.14)}
.d168-status--done{color:var(--teal)}
.d168-status--done::before{background:var(--teal);box-shadow:0 0 0 3px rgba(31,224,182,.16)}
.d168-status--pending{color:var(--orange)}
.d168-status--pending::before{background:var(--orange);box-shadow:0 0 0 3px rgba(255,107,26,.18);animation:d168-breathe 2.4s ease-in-out infinite}
.d168-status--warn{color:var(--amber)}
.d168-status--warn::before{background:var(--amber);box-shadow:0 0 0 3px rgba(255,194,75,.16)}
@keyframes d168-breathe{0%,100%{opacity:.45}50%{opacity:1}}
.d168-ver{font-family:var(--font-mono);font-weight:700;font-size:15px;color:var(--paper);border-bottom:1px solid var(--line);padding-bottom:1px;transition:border-color .2s ease}
.d168-ver:hover{border-color:var(--orange)}
.d168-copy{position:relative;display:inline-block}
.d168-copy[data-copied="true"]::after{
  content:"已复制";position:absolute;left:calc(100% + 10px);top:50%;transform:translateY(-50%);
  padding:3px 9px;border-radius:var(--r-pill);background:var(--teal);color:#04231C;
  font-family:var(--font-mono);font-size:11.5px;white-space:nowrap;
}

/* ---------- 9. 面包屑 / 页内目录 / 时间轴 ---------- */
.d168-crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-family:var(--font-mono);font-size:12.5px;color:var(--muted)}
.d168-crumbs__item{color:var(--muted)}
.d168-crumbs a.d168-crumbs__item:hover{color:var(--paper)}
.d168-crumbs__sep{color:var(--line)}
.d168-crumbs__item[aria-current="page"]{color:var(--orange)}
.d168-toc{display:grid;gap:2px;border-left:1px solid var(--line)}
.d168-toc__link{display:flex;align-items:center;gap:10px;padding:9px 14px;margin-left:-1px;border-left:2px solid transparent;font-size:14.5px;color:var(--muted);transition:color .2s ease,border-color .2s ease}
.d168-toc__link::before{content:"";width:10px;height:1px;background:var(--line);transition:width .2s ease,background .2s ease}
.d168-toc__link:hover{color:var(--paper)}
.d168-toc__link[data-active="true"]{color:var(--paper);border-left-color:var(--orange)}
.d168-toc__link[data-active="true"]::before{width:18px;background:var(--orange)}
.d168-timeline{position:relative;display:grid;padding-left:28px}
.d168-timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:1px;background:var(--line)}
.d168-timeline__item{position:relative;padding:14px 0}
.d168-timeline__item::before{content:"";position:absolute;left:-28px;top:24px;width:13px;height:3px;border-radius:2px;background:var(--line);transition:background .2s ease,width .2s ease}
.d168-timeline__item[data-state="current"]::before{width:20px;background:var(--orange);box-shadow:0 0 12px rgba(255,107,26,.8)}
.d168-timeline__item[data-state="done"]::before{background:var(--teal)}

/* ---------- 10. 图片容器（页面阶段放 <img>） ---------- */
.d168-media{
  position:relative;overflow:hidden;aspect-ratio:16/9;border-radius:var(--r-lg);border:1px solid var(--line);
  background:
    radial-gradient(120% 92% at 18% 10%,rgba(255,107,26,.22),transparent 62%),
    radial-gradient(94% 84% at 84% 84%,rgba(31,224,182,.18),transparent 64%),
    var(--ink-800);
}
.d168-media img{width:100%;height:100%;object-fit:cover}
.d168-media--square{aspect-ratio:1/1}
.d168-media--portrait{aspect-ratio:4/5}
.d168-media--tall{aspect-ratio:3/4}
.d168-media--wide{aspect-ratio:21/9}
.d168-media__note{
  position:absolute;left:14px;bottom:12px;padding:4px 11px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(10,16,48,.78);
  font-family:var(--font-mono);font-size:12px;color:var(--paper);
}

/* ---------- 11. 手风琴 / 回到顶部 / 显现 ---------- */
.d168-acc{display:grid;gap:12px}
.d168-acc__item{background:var(--ink-800);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.d168-acc__btn{display:flex;width:100%;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;text-align:left;color:var(--paper);font-weight:700;font-size:16px}
.d168-acc__btn::after{content:"+";font-family:var(--font-mono);font-size:18px;color:var(--orange)}
.d168-acc__btn[aria-expanded="true"]::after{content:"–"}
.d168-acc__panel{padding:2px 20px 18px;border-top:1px solid var(--line-soft);color:var(--muted);line-height:1.8}
.d168-totop{
  position:fixed;right:clamp(14px,3vw,32px);bottom:clamp(14px,3vw,32px);z-index:60;
  display:inline-flex;align-items:center;gap:10px;padding:11px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(20,28,66,.94);color:var(--paper);
  font-family:var(--font-mono);font-size:12.5px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease,border-color .2s ease;
}
.d168-totop::before{content:"";width:12px;height:2px;border-radius:2px;background:var(--orange)}
.d168-totop[data-visible="true"]{opacity:1;visibility:visible;transform:none}
.d168-totop:hover{border-color:var(--orange)}
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 12. 平板 ---------- */
@media (max-width:1080px){
  .d168-footer__grid{grid-template-columns:1.5fr 1fr 1fr;gap:28px}
  .d168-nav__link{font-size:14.5px}
}

/* ---------- 13. 移动端：双层头部折叠为刻度抽屉 ---------- */
@media (max-width:920px){
  html{scroll-padding-top:96px}
  .d168-headmeta{display:none}
  .d168-header__cta{display:none}
  .d168-navtoggle{display:inline-flex}
  .d168-nav{
    position:fixed;top:0;left:0;bottom:0;width:min(320px,86vw);z-index:75;
    display:block;overflow-y:auto;
    padding:88px 0 32px;
    background:var(--ink-800);border-right:1px solid var(--line);
    box-shadow:34px 0 70px -46px #000;
    transform:translateX(-102%);
    transition:transform .32s cubic-bezier(.22,.8,.24,1);
  }
  .d168-nav[data-open="true"]{transform:translateX(0)}
  .d168-nav__head{
    display:block;padding:0 22px 16px;border-bottom:1px solid var(--line-soft);
    font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--orange);
  }
  .d168-nav__list{display:flex;flex-direction:column;align-items:stretch;gap:0;padding-inline:22px}
  .d168-nav__link{width:100%;padding:15px 0;font-size:16px;border-bottom:1px solid var(--line-soft)}
  .d168-nav__link::before{width:18px;height:3px}
  .d168-nav__link[aria-current="page"]::before{width:26px}
  .d168-nav__foot{display:grid;gap:10px;padding:22px;margin-top:14px;border-top:1px solid var(--line-soft)}
  .d168-nav__foot .d168-btn{width:100%}
  .d168-footer__grid{grid-template-columns:1fr 1fr}
  .d168-footer__brand{grid-column:1 / -1}
  .d168-grid--asym{grid-template-columns:1fr}
}

/* ---------- 14. 小屏 ---------- */
@media (max-width:620px){
  body{font-size:16px}
  .d168-brand__line{display:none}
  .d168-header__top{padding-block:10px}
  .d168-footer__grid{grid-template-columns:1fr;gap:22px}
  .d168-footer__bottom{flex-direction:column;align-items:flex-start}
  .d168-totop{right:14px;bottom:14px}
}

/* ---------- 15. 降级动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none}
  [data-reveal],.d168-nav,.d168-progress__fill,.d168-totop,.d168-scrim,.d168-navtoggle__bars i{transition:none}
  .d168-dot,.d168-status--pending::before{animation:none;opacity:1}
}