/* ============================================================
   大发黄金指南 · 全站共享层  /assets/site.css
   暗墨基底 + 金线路径 + 档案式标签系统
   ============================================================ */

*,*::before,*::after{ box-sizing: border-box; }

:root{
  --ink:#17130E;
  --ink-2:#1E1913;
  --gold:#E8B23A;
  --amber:#C96A1E;
  --cream:#F5E7C6;
  --teal:#10201F;
  --indigo:#1B1730;
  --wine:#2A1216;
  --line:#6E5A2E;
  --muted:#8C8577;
  --ok:#4F8A6B;

  --wrap:1180px;
  --read:36em;
  --cut:22px;

  --font-head:"Helvetica Neue","Arial Narrow","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"SF Mono","JetBrains Mono","Cascadia Mono",Menlo,Consolas,"Courier New",monospace;

  --ease:cubic-bezier(.2,.7,.2,1);
}

/* ---------- reset ---------- */
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  background:var(--ink);
}
body{
  margin:0;
  background:var(--ink);
  color:var(--cream);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img,svg,video{ max-width:100%; }
button,input,select,textarea{ font:inherit; color:inherit; }
a{ color:var(--gold); text-underline-offset:3px; }
ul,ol{ margin:0 0 1.1em; padding-left:1.2em; }

:focus-visible{
  outline:2px solid var(--gold);
  outline-offset:3px;
  border-radius:4px;
}

/* ---------- 中文排版 ---------- */
h1,h2,h3,h4,h5{
  font-family:var(--font-head);
  font-weight:800;
  line-height:1.24;
  letter-spacing:.02em;
  margin:0 0 .6em;
  color:var(--cream);
  text-wrap:balance;
}
h1{ font-size:clamp(30px,5.4vw,58px); font-weight:900; letter-spacing:.01em; }
h2{ font-size:clamp(23px,3.4vw,34px); }
h3{ font-size:clamp(18px,2.2vw,22px); }
h4{ font-size:15px; letter-spacing:.12em; color:var(--gold); text-transform:uppercase; }
p{ margin:0 0 1.1em; }
p:last-child{ margin-bottom:0; }
strong{ color:#fff; font-weight:700; }

/* ---------- 通用容器 ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:clamp(16px,4vw,32px);
}
.prose{
  max-width:var(--read);
  line-height:1.9;
}
.prose p{ margin:0 0 1.15em; }
.lede{
  font-size:clamp(18px,2.1vw,21px);
  line-height:1.8;
  color:var(--cream);
  max-width:var(--read);
}
#main-content{ scroll-margin-top:104px; }

/* ---------- 面包屑 ---------- */
.crumbs{
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--muted);
  margin:0 0 18px;
}
.crumbs ol{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin:0;
  padding:0;
}
.crumbs li{ display:flex; align-items:center; gap:8px; }
.crumbs li::after{ content:"/"; color:var(--line); }
.crumbs li:last-child::after{ content:none; }
.crumbs a{ color:var(--muted); text-decoration:none; }
.crumbs a:hover{ color:var(--gold); }

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:13px 24px;
  font-family:var(--font-head);
  font-size:14.5px;
  font-weight:700;
  letter-spacing:.06em;
  line-height:1.2;
  text-decoration:none;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--cream);
  background:transparent;
  cursor:pointer;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn-gold{
  background:var(--gold);
  border-color:var(--gold);
  color:var(--ink);
}
.btn-gold:hover{ background:var(--amber); border-color:var(--amber); color:#fff; }
.btn-ghost:hover{ border-color:var(--gold); color:var(--gold); background:rgba(232,178,58,.08); }
.btn:active{ transform:translateY(1px); }

/* ---------- 切角面板 ---------- */
.panel{
  position:relative;
  padding:clamp(22px,3.4vw,34px);
  background:var(--panel-bg,var(--ink-2));
  border-left:2px solid var(--panel-accent,var(--gold));
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
  overflow:hidden;
}
.panel::before{
  content:"";
  position:absolute;
  top:-70px;
  right:-70px;
  width:200px;
  height:200px;
  background:radial-gradient(circle,rgba(232,178,58,.13),transparent 68%);
  pointer-events:none;
}
.panel-teal{ --panel-bg:var(--teal); --panel-accent:var(--ok); }
.panel-indigo{ --panel-bg:var(--indigo); --panel-accent:var(--gold); }
.panel-wine{ --panel-bg:var(--wine); --panel-accent:var(--amber); }

/* ---------- 横向主题带 ---------- */
.band{
  background:var(--band-bg,var(--teal));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:clamp(26px,4vw,46px) 0;
  margin-block:clamp(34px,6vw,72px);
}
.band-teal{ --band-bg:var(--teal); }
.band-indigo{ --band-bg:var(--indigo); }
.band-wine{ --band-bg:var(--wine); }

/* ---------- 网格 ---------- */
.grid-2{
  display:grid;
  gap:clamp(20px,3vw,36px);
  grid-template-columns:1fr;
}
.grid-offset{
  display:grid;
  gap:clamp(22px,4vw,48px);
  grid-template-columns:1fr;
}
@media (min-width:820px){
  .grid-2{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (min-width:900px){
  .grid-offset{ grid-template-columns:1.15fr .85fr; align-items:start; }
  .grid-offset > :nth-child(2){ margin-top:clamp(30px,7vw,84px); }
}

/* ---------- 标签 ---------- */
.tag-row{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin:0 0 18px;
  padding:0;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 13px;
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--muted);
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(232,178,58,.04);
}
.tag b{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  color:var(--gold);
  letter-spacing:.04em;
}

/* ---------- 编号折线路径 ---------- */
.trail{
  list-style:none;
  position:relative;
  margin:0;
  padding:0 0 0 42px;
  display:grid;
  gap:22px;
}
.trail::before{
  content:"";
  position:absolute;
  left:13px;
  top:8px;
  bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--gold),rgba(232,178,58,.28) 68%,transparent);
}
.trail-item{ position:relative; }
.trail-dot{
  position:absolute;
  left:-42px;
  top:0;
  width:28px;
  height:28px;
  display:grid;
  place-items:center;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.02em;
  color:var(--gold);
  border:1px solid var(--line);
  border-radius:50%;
  background:var(--ink);
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease);
}
.trail-dot[data-state="on"]{
  color:var(--ink);
  background:var(--gold);
  border-color:var(--gold);
}

/* ---------- 编号与注释 ---------- */
.num{
  font-family:var(--font-mono);
  font-size:.82em;
  letter-spacing:.07em;
  color:var(--gold);
}
.note-side{
  writing-mode:vertical-rl;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.24em;
  color:var(--muted);
  margin:0;
}

/* ---------- 原位展开对照层 ---------- */
.fold{
  border:1px solid var(--line);
  background:rgba(16,32,31,.5);
}
.fold + .fold{ margin-top:10px; }
.fold-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  width:100%;
  padding:16px 18px;
  background:transparent;
  border:0;
  text-align:left;
  font-family:var(--font-head);
  font-size:15px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--cream);
  cursor:pointer;
  transition:color .2s var(--ease);
}
.fold-head:hover{ color:var(--gold); }
.fold-sign{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:14px;
  color:var(--gold);
  transition:transform .25s var(--ease);
}
.fold-head[aria-expanded="true"] .fold-sign{ transform:rotate(45deg); }
.fold-body{
  padding:2px 18px 20px;
  font-size:15.5px;
  color:var(--cream);
}
.fold-body[hidden]{ display:none; }

/* ---------- 图片容器基础规则 ---------- */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16 / 10;
  overflow:hidden;
  border:1px solid var(--line);
  background:
    radial-gradient(120% 90% at 80% 0%,rgba(232,178,58,.12),transparent 62%),
    linear-gradient(155deg,var(--teal),var(--ink-2) 70%);
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
}
.media-frame img,
.media-frame svg{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame[data-ratio="wide"]{ aspect-ratio:21 / 9; }
.media-frame[data-ratio="square"]{ aspect-ratio:1 / 1; }
.media-frame[data-ratio="tall"]{ aspect-ratio:3 / 4; }
@media (max-width:640px){
  .media-frame,
  .media-frame[data-ratio="wide"]{ aspect-ratio:4 / 3; }
}

/* ---------- 已核对清单 ---------- */
.tick-list{
  list-style:none;
  margin:0;
  padding:0;
}
.tick-list li{
  position:relative;
  padding:14px 0 14px 26px;
  border-bottom:1px dashed rgba(110,90,46,.45);
  font-size:15.5px;
}
.tick-list li:last-child{ border-bottom:0; }
.tick-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:23px;
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--ok);
  box-shadow:0 0 0 3px rgba(79,138,107,.18);
}

/* ---------- 显现 ---------- */
html[data-js="on"] [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
html[data-js="on"] [data-reveal].is-in{
  opacity:1;
  transform:none;
}

/* ============================================================
   头部 / 悬浮胶囊导航
   ============================================================ */
.skip-link{
  position:fixed;
  top:10px;
  left:50%;
  transform:translate(-50%,-180%);
  z-index:200;
  padding:10px 20px;
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  text-decoration:none;
  color:var(--ink);
  background:var(--gold);
  border-radius:999px;
  transition:transform .2s var(--ease);
}
.skip-link:focus{ transform:translate(-50%,0); }

.site-head{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:90;
  padding:14px clamp(12px,3vw,28px) 0;
  pointer-events:none;
}
.site-head > *{ pointer-events:auto; }

.read-progress{
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:3px;
  background:rgba(110,90,46,.3);
  pointer-events:none;
}
.read-progress-fill{
  display:block;
  height:100%;
  width:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--amber),var(--gold) 70%,#F5E7C6);
  transition:transform .12s linear;
}

.head-island{
  position:relative;
  max-width:var(--wrap);
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:14px;
  padding:10px 12px 10px 16px;
  background:rgba(23,19,14,.86);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:0 22px 48px -30px rgba(0,0,0,.95);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:padding .3s var(--ease),background .3s var(--ease),border-color .3s var(--ease);
}
.site-head[data-shrunk="true"] .head-island{
  padding:6px 10px 6px 14px;
  background:rgba(23,19,14,.95);
  border-color:rgba(110,90,46,.85);
}

.brand-mark{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  min-width:0;
  text-decoration:none;
  color:inherit;
}
.brand-glyph{
  display:grid;
  place-items:center;
  flex:0 0 auto;
  width:32px;
  height:32px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.03em;
  color:var(--gold);
  border:1px solid var(--line);
  background:rgba(232,178,58,.08);
  clip-path:polygon(0 0,calc(100% - 9px) 0,100% 9px,100% 100%,9px 100%,0 calc(100% - 9px));
}
.brand-text{
  display:flex;
  flex-direction:column;
  min-width:0;
  line-height:1.25;
}
.brand-name{
  font-family:var(--font-head);
  font-size:15px;
  font-weight:800;
  letter-spacing:.07em;
  color:var(--cream);
  white-space:nowrap;
}
.brand-line{
  max-height:20px;
  font-size:11px;
  letter-spacing:.15em;
  color:var(--muted);
  white-space:nowrap;
  overflow:hidden;
  transition:max-height .3s var(--ease),opacity .25s var(--ease);
}
.site-head[data-shrunk="true"] .brand-line{
  max-height:0;
  opacity:0;
}

/* 导航：移动优先为浮层面板 */
.site-nav{
  position:absolute;
  top:calc(100% + 10px);
  left:0;
  right:0;
  display:none;
  padding:12px;
  background:rgba(23,19,14,.97);
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:0 34px 64px -34px rgba(0,0,0,.95);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.site-head[data-open="true"] .site-nav{ display:block; }

.nav-list{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:2px;
  margin:0;
  padding:0;
}
.nav-link{
  display:block;
  padding:12px 14px;
  font-size:15px;
  letter-spacing:.04em;
  color:var(--cream);
  text-decoration:none;
  border:1px solid transparent;
  border-radius:14px;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.nav-link:hover,
.nav-link:focus-visible{
  color:var(--gold);
  background:rgba(232,178,58,.08);
  border-color:var(--line);
}
.nav-link[aria-current="page"]{
  color:var(--ink);
  background:var(--gold);
  border-color:var(--gold);
  font-weight:700;
}

.head-actions{
  display:flex;
  align-items:center;
  gap:8px;
  flex:0 0 auto;
  margin-left:auto;
}
.head-search{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px 8px 10px;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--cream);
  text-decoration:none;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(16,32,31,.72);
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.head-search:hover,
.head-search:focus-visible{
  color:var(--gold);
  border-color:var(--gold);
  background:rgba(232,178,58,.1);
}
.head-search-key{
  display:grid;
  place-items:center;
  width:20px;
  height:20px;
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--muted);
  border:1px solid var(--line);
  border-radius:6px;
}
.head-cta{
  display:inline-flex;
  align-items:center;
  padding:9px 17px;
  font-family:var(--font-head);
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--ink);
  background:var(--gold);
  border:1px solid var(--gold);
  border-radius:999px;
  text-decoration:none;
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.head-cta:hover{ background:var(--amber); border-color:var(--amber); color:#fff; }

.nav-toggle{
  display:inline-grid;
  place-content:center;
  gap:5px;
  width:38px;
  height:38px;
  padding:0;
  background:transparent;
  border:1px solid var(--line);
  border-radius:999px;
  cursor:pointer;
  transition:border-color .2s var(--ease);
}
.nav-toggle:hover{ border-color:var(--gold); }
.nav-toggle-bar{
  display:block;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--cream);
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.site-head[data-open="true"] .nav-toggle-bar:first-child{ transform:translateY(3.5px) rotate(45deg); }
.site-head[data-open="true"] .nav-toggle-bar:last-child{ transform:translateY(-3.5px) rotate(-45deg); }
.site-head[data-open="true"] .nav-toggle{ border-color:var(--gold); }
.site-head[data-open="true"] .nav-toggle-bar{ background:var(--gold); }

@media (max-width:640px){
  .head-search-text{ display:none; }
  .head-search{ padding:8px; }
  .brand-line{ display:none; }
}
@media (max-width:860px){
  .head-cta{ display:none; }
}
@media (min-width:1080px){
  .head-island{ padding:10px 16px; }
  .site-head[data-shrunk="true"] .head-island{ padding:7px 14px; }
  .site-nav{
    position:static;
    display:block;
    flex:1 1 auto;
    padding:0 8px;
    background:none;
    border:0;
    border-radius:0;
    box-shadow:none;
    backdrop-filter:none;
    -webkit-backdrop-filter:none;
  }
  .nav-list{
    flex-direction:row;
    flex-wrap:wrap;
    justify-content:center;
    gap:2px;
  }
  .nav-link{
    padding:8px 13px;
    font-size:14px;
    border-radius:999px;
  }
  .nav-toggle{ display:none; }
  .skip-link{ top:14px; }
}

/* ============================================================
   页脚
   ============================================================ */
.site-foot{
  margin-top:clamp(64px,10vw,120px);
  padding:clamp(42px,6vw,76px) clamp(16px,4vw,32px) 26px;
  background:
    radial-gradient(120% 90% at 10% 0%,rgba(232,178,58,.1),transparent 58%),
    #100D09;
  border-top:1px solid var(--line);
}
.foot-wrap{
  max-width:var(--wrap);
  margin:0 auto;
}
.foot-grid{
  display:grid;
  gap:clamp(28px,4vw,48px);
  grid-template-columns:1fr;
}
@media (min-width:760px){
  .foot-grid{ grid-template-columns:1.25fr 1fr 1.35fr; }
}
.foot-brand{ min-width:0; }
.foot-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
  text-decoration:none;
  color:var(--cream);
}
.foot-say{
  max-width:26em;
  font-size:15px;
  color:var(--cream);
  margin-bottom:10px;
}
.foot-meta{
  font-size:12.5px;
  letter-spacing:.05em;
  color:var(--muted);
}
.foot-title{
  margin:0 0 14px;
  font-family:var(--font-head);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.24em;
  color:var(--muted);
  text-transform:uppercase;
}
.foot-list{
  list-style:none;
  display:grid;
  gap:6px;
  margin:0;
  padding:0;
}
.foot-list li{ font-size:14.5px; line-height:1.7; }
.foot-list a{
  display:inline-block;
  padding:3px 0;
  font-size:14.5px;
  letter-spacing:.03em;
  color:var(--cream);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.foot-list a:hover,
.foot-list a:focus-visible{
  color:var(--gold);
  border-bottom-color:var(--gold);
}
.foot-mail,.foot-tel{
  font-family:var(--font-mono);
  font-size:13.5px;
  letter-spacing:.02em;
  color:var(--cream);
  word-break:break-all;
}
.foot-addr{
  font-size:13.5px;
  color:var(--muted);
  max-width:22em;
}
.foot-legal{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:6px 16px;
  margin:18px 0 0;
  padding:0;
  font-size:12.5px;
}
.foot-legal a{
  color:var(--muted);
  letter-spacing:.05em;
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.foot-legal a:hover,
.foot-legal a:focus-visible{
  color:var(--gold);
  border-bottom-color:var(--gold);
}

.copy-btn{
  margin-left:8px;
  padding:2px 10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  vertical-align:middle;
  color:var(--muted);
  background:transparent;
  border:1px solid var(--line);
  border-radius:999px;
  cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.copy-btn:hover{ color:var(--gold); border-color:var(--gold); background:rgba(232,178,58,.08); }
.copy-btn[data-copy-state="done"]{ color:var(--ok); border-color:var(--ok); }

.foot-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 24px;
  margin-top:clamp(32px,5vw,58px);
  padding-top:20px;
  border-top:1px solid rgba(110,90,46,.5);
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--muted);
}
.foot-base p{ margin:0; }
.foot-icp{ font-family:var(--font-mono); }

/* ============================================================
   动效降级
   ============================================================ */
@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html[data-js="on"] [data-reveal]{
    opacity:1;
    transform:none;
  }
  .read-progress-fill{ transition:none; }
}