/* ============================================================
   77棋牌服务 · 微赢棋牌中文官方站 —— 共享样式 /assets/site.css
   青绿为骨、朱砂为记、铜金为亮
   ============================================================ */

:root{
  --ink:#1A1D1B;
  --paper:#F5F0E6;
  --paper-2:#E4DED1;
  --jade:#0E5147;
  --jade-deep:#072A25;
  --felt:#1A5B45;
  --jade-mid:#1C7A68;
  --cinnabar:#B23327;
  --copper:#C08A3E;
  --electric:#2F6DA4;
  --neon:#4FC3A1;

  --notch:16px;
  --rail:88px;
  --shell:1240px;
  --nav-break:920px;

  --font-display:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-body:"HarmonyOS Sans","HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --ease:cubic-bezier(.2,.7,.3,1);
  --line-copper:rgba(192,138,62,.42);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
a{color:inherit;text-decoration:none;}
img,svg{display:block;max-width:100%;}
:focus-visible{outline:2px solid var(--copper);outline-offset:3px;border-radius:3px;}

/* ---------- 中文排版基底 ---------- */
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background-color:var(--paper);
  background-image:
    linear-gradient(to right,rgba(14,81,71,.035) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(14,81,71,.035) 1px,transparent 1px);
  background-size:64px 64px;
  letter-spacing:.01em;
}
p{max-width:36em;}
strong{font-weight:600;color:var(--jade);}
::selection{background:rgba(178,51,39,.22);}

.num,.stat__value,.ledger__v,.footer-meta__legal{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
}
.label{
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:rgba(26,29,27,.55);
}
.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;
}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:300;
  padding:11px 20px;border-radius:999px;
  background:var(--copper);color:var(--jade-deep);
  font-size:14px;font-weight:600;letter-spacing:.04em;
  transform:translateY(-260%);
  transition:transform .22s var(--ease);
}
.skip-link:focus{transform:translateY(0);}

/* ============================================================
   头部
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(7,42,37,.94);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line-copper);
  padding:12px 0 14px;
  transition:padding .3s var(--ease);
}
.site-header.is-compact{padding:6px 0 8px;}
.site-header.is-compact .brand-lockup__score{width:38px;height:38px;font-size:19px;}

.site-header__shell{width:min(100% - 28px,1340px);margin-inline:auto;}
.site-header__bar{
  display:flex;align-items:center;gap:16px;
  min-height:52px;
}

/* 品牌 */
.brand-lockup{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-lockup__score{
  width:46px;height:46px;display:grid;place-items:center;
  font-family:var(--font-mono);font-size:22px;font-weight:700;line-height:1;
  letter-spacing:-.05em;color:var(--jade-deep);background:var(--copper);
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  transition:width .3s var(--ease),height .3s var(--ease),font-size .3s var(--ease);
}
.brand-lockup__text{display:flex;flex-direction:column;line-height:1.3;}
.brand-lockup__name{
  font-family:var(--font-display);font-size:17px;font-weight:700;
  color:#fff;letter-spacing:.02em;
}
.brand-lockup__tagline{font-size:11px;letter-spacing:.18em;color:var(--neon);opacity:.86;}

/* 悬浮胶囊导航 */
.capsule-nav{flex:1 1 auto;display:flex;justify-content:center;}
.capsule-nav__list{
  display:flex;align-items:center;gap:2px;
  padding:4px;border-radius:999px;
  background:rgba(14,81,71,.55);
  border:1px solid var(--line-copper);
}
.capsule-nav__link{
  display:block;padding:9px 17px;border-radius:999px;
  font-size:14px;letter-spacing:.02em;white-space:nowrap;
  color:rgba(245,240,230,.86);
  transition:background .25s var(--ease),color .25s var(--ease);
}
.capsule-nav__link:hover{background:rgba(79,195,161,.16);color:#fff;}
.capsule-nav__link[aria-current="page"]{background:var(--cinnabar);color:#fff;font-weight:600;}
.capsule-nav__foot{display:none;}

/* 头部行动 */
.header-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 18px;border-radius:999px;
  font-size:14px;font-weight:600;letter-spacing:.03em;white-space:nowrap;
  transition:background .25s var(--ease),color .25s var(--ease),
             border-color .25s var(--ease),transform .25s var(--ease);
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn--gold{background:var(--copper);color:#20160A;}
.btn--gold:hover{background:#D29A49;}
.btn--quiet{color:rgba(245,240,230,.88);border:1px solid rgba(192,138,62,.5);}
.btn--quiet:hover{background:rgba(192,138,62,.16);color:#fff;}
.btn--ghost{color:var(--jade);border:1px solid rgba(14,81,71,.35);}
.btn--ghost:hover{background:rgba(14,81,71,.08);border-color:var(--jade);}

/* 移动开关 */
.nav-toggle{
  display:none;align-items:center;gap:9px;flex:0 0 auto;
  padding:10px 14px;border-radius:999px;
  border:1px solid rgba(192,138,62,.5);
  color:var(--paper);font-size:13px;letter-spacing:.12em;
  transition:background .25s var(--ease);
}
.nav-toggle:hover{background:rgba(192,138,62,.16);}
.nav-toggle__bars{position:relative;display:block;width:18px;height:10px;}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;
  background:currentColor;
  transition:transform .28s var(--ease),top .28s var(--ease);
}
.nav-toggle__bars::before{top:0;}
.nav-toggle__bars::after{top:8px;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:4px;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:4px;transform:rotate(-45deg);}
.nav-toggle__label{font-family:var(--font-body);}

/* 阅读进度 */
.header-progress{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:rgba(245,240,230,.1);
}
.header-progress__bar{
  display:block;width:100%;height:100%;
  background:linear-gradient(90deg,var(--copper),var(--neon));
  transform:scaleX(0);transform-origin:0 50%;
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;overflow:hidden;
  margin-top:96px;
  background:var(--jade-deep);
  color:rgba(245,240,230,.8);
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(115deg,rgba(79,195,161,.055) 0 2px,transparent 2px 22px);
}
.site-footer__inner{
  position:relative;
  display:grid;grid-template-columns:minmax(240px,1fr) 2fr;
  gap:56px;padding:72px 0 48px;
}
.footer-brand__mark{
  font-family:var(--font-mono);font-size:42px;line-height:1;
  letter-spacing:-.06em;color:var(--copper);
}
.footer-brand__name{
  margin-top:14px;font-family:var(--font-display);font-size:19px;
  color:#fff;letter-spacing:.02em;
}
.footer-brand__note{
  margin-top:10px;font-size:14px;line-height:1.85;
  color:rgba(245,240,230,.68);
}
.footer-contact{
  margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;
}
.footer-contact__line{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.02em;
  color:var(--neon);
}
.copy-btn{
  font-size:12px;letter-spacing:.12em;padding:6px 13px;border-radius:999px;
  border:1px solid rgba(192,138,62,.55);color:var(--copper);
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.copy-btn:hover{background:rgba(192,138,62,.18);color:#fff;}
.copy-btn[data-copied]{background:var(--copper);color:var(--jade-deep);border-color:var(--copper);}

.footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;}
.footer-col__title{
  font-size:12px;font-weight:600;letter-spacing:.22em;
  color:var(--copper);margin-bottom:16px;
}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list__item{font-size:14px;color:rgba(245,240,230,.66);}
.footer-link{
  font-size:14px;color:rgba(245,240,230,.88);
  border-bottom:1px solid transparent;
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.footer-link:hover{color:var(--neon);border-bottom-color:var(--neon);}

.footer-rule{
  position:relative;height:1px;
  background:linear-gradient(90deg,transparent,rgba(192,138,62,.65),transparent);
}
.footer-meta{
  position:relative;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 28px;
  padding:22px 0 34px;
  font-size:12.5px;letter-spacing:.04em;color:rgba(245,240,230,.58);
}
.footer-meta__legal{letter-spacing:.08em;color:rgba(192,138,62,.92);}
.footer-meta__text{max-width:none;}

/* 返回顶部 */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:110;
  width:48px;height:48px;display:grid;place-items:center;
  color:var(--neon);background:var(--jade-deep);
  border:1px solid rgba(192,138,62,.5);
  clip-path:polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),
             visibility .3s var(--ease),background .25s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--jade);}
.to-top__mark{font-family:var(--font-mono);font-size:17px;line-height:1;}

/* ============================================================
   通用容器与章节
   ============================================================ */
.container{width:min(100% - 36px,var(--shell));margin-inline:auto;}

.section{padding:76px 0;}
.section--dark{background:var(--jade);color:var(--paper);}
.section--felt{background:var(--jade-deep);color:var(--paper);}
.section__index{
  display:block;margin-bottom:12px;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.26em;
  color:var(--cinnabar);
}
.section__title{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(28px,4vw,44px);line-height:1.22;letter-spacing:-.01em;
  color:var(--jade);
}
.section__lede{
  margin-top:16px;max-width:36em;
  font-size:16.5px;line-height:1.95;color:rgba(26,29,27,.78);
}
.section--dark .section__index,
.section--felt .section__index{color:var(--copper);}
.section--dark .section__title,
.section--felt .section__title{color:#fff;}
.section--dark .section__lede,
.section--felt .section__lede{color:rgba(245,240,230,.78);}

.rule-copper{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,rgba(192,138,62,.85),rgba(192,138,62,.05));
}
.link-line{
  color:var(--jade);
  border-bottom:1px solid rgba(192,138,62,.6);
  padding-bottom:2px;
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.link-line:hover{color:var(--cinnabar);border-color:var(--cinnabar);}

/* 面包屑 */
.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:0;
  font-size:12.5px;letter-spacing:.1em;color:rgba(26,29,27,.5);
}
.breadcrumbs__item{display:flex;align-items:center;}
.breadcrumbs__item + .breadcrumbs__item::before{
  content:"／";margin:0 8px;color:var(--copper);
}
.breadcrumbs__link{color:var(--jade);border-bottom:1px solid rgba(14,81,71,.25);}
.breadcrumbs__link:hover{border-bottom-color:var(--copper);}
.breadcrumbs [aria-current="page"]{color:rgba(26,29,27,.62);}
.section--dark .breadcrumbs,
.section--felt .breadcrumbs{color:rgba(245,240,230,.6);}
.section--dark .breadcrumbs__link,
.section--felt .breadcrumbs__link{color:var(--neon);border-bottom-color:rgba(79,195,161,.4);}

/* 网格 */
.grid{display:grid;gap:24px;}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid--rail{grid-template-columns:var(--rail) minmax(0,1fr);}

/* ============================================================
   面板 / 统计 / 账目
   ============================================================ */
.panel{
  position:relative;
  padding:26px;
  background:var(--paper);
  border:1px solid rgba(14,81,71,.16);
}
.panel--notch{
  clip-path:polygon(var(--notch) 0,100% 0,100% calc(100% - var(--notch)),
                    calc(100% - var(--notch)) 100%,0 100%,0 var(--notch));
}
.panel--felt{
  background:var(--felt);color:var(--paper);
  border-color:rgba(192,138,62,.35);
}
.panel--dark{
  background:var(--jade-deep);color:var(--paper);
  border-color:rgba(79,195,161,.25);
}

.stat{display:flex;flex-direction:column;gap:6px;}
.stat__value{
  font-size:clamp(30px,4.4vw,56px);line-height:1;
  letter-spacing:-.03em;color:var(--copper);
}
.stat--neon .stat__value{color:var(--neon);}
.stat__label{font-size:12px;letter-spacing:.18em;color:rgba(26,29,27,.55);}
.panel--felt .stat__label,
.panel--dark .stat__label{color:rgba(245,240,230,.62);}
.section--dark .stat__label,
.section--felt .stat__label{color:rgba(245,240,230,.62);}

.ledger{display:flex;flex-direction:column;}
.ledger__row{
  display:flex;justify-content:space-between;gap:16px;
  padding:12px 0;font-size:14.5px;
  border-bottom:1px dashed rgba(14,81,71,.2);
}
.ledger__row:last-child{border-bottom:0;}
.ledger__k{color:rgba(26,29,27,.72);}
.ledger__v{color:var(--jade);}
.panel--felt .ledger__row,
.panel--dark .ledger__row,
.section--dark .ledger__row,
.section--felt .ledger__row{border-bottom-color:rgba(192,138,62,.28);}
.panel--felt .ledger__k,
.panel--dark .ledger__k,
.section--dark .ledger__k,
.section--felt .ledger__k{color:rgba(245,240,230,.7);}
.panel--felt .ledger__v,
.panel--dark .ledger__v,
.section--dark .ledger__v,
.section--felt .ledger__v{color:var(--neon);}

/* ============================================================
   抽屉 / 标签筛选
   ============================================================ */
.drawer{
  background:var(--paper);
  border:1px solid rgba(14,81,71,.18);
}
.drawer + .drawer{margin-top:10px;}
.drawer__summary{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 20px;cursor:pointer;
  font-size:15.5px;font-weight:600;color:var(--jade);
  list-style:none;
}
.drawer__summary::-webkit-details-marker{display:none;}
.drawer__summary::after{
  content:"＋";font-family:var(--font-mono);color:var(--copper);flex:0 0 auto;
}
.drawer[open] > .drawer__summary::after{content:"－";}
.drawer__body{
  padding:0 20px 20px;
  font-size:15px;line-height:1.9;color:rgba(26,29,27,.78);
}
.drawer__body p{max-width:36em;}

.chip-row{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  padding:7px 14px;border-radius:999px;
  font-size:12.5px;letter-spacing:.08em;
  color:var(--jade);border:1px solid rgba(14,81,71,.24);
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.chip:hover{border-color:var(--copper);}
.chip.is-active,
.chip[aria-pressed="true"]{background:var(--jade);border-color:var(--jade);color:var(--paper);}

/* ============================================================
   时间轴轨道 / 目录
   ============================================================ */
.rail{position:relative;padding-left:4px;}
.rail__track{
  position:absolute;left:27px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(to bottom,var(--copper),rgba(14,81,71,.12));
}
.rail__item{position:relative;padding:0 0 38px 64px;}
.rail__item:last-child{padding-bottom:0;}
.rail__dot{
  position:absolute;left:20px;top:6px;
  width:15px;height:15px;border-radius:50%;
  background:var(--paper);
  border:2px solid rgba(14,81,71,.35);
  transition:background .3s var(--ease),border-color .3s var(--ease);
}
.rail__item.is-current .rail__dot{
  background:var(--cinnabar);border-color:var(--cinnabar);
}
.rail__label{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  color:var(--copper);
}
.section--dark .rail__track,
.section--felt .rail__track{background:linear-gradient(to bottom,var(--copper),rgba(245,240,230,.14));}
.section--dark .rail__dot,
.section--felt .rail__dot{background:var(--jade-deep);border-color:rgba(245,240,230,.35);}

.toc{display:flex;flex-direction:column;gap:2px;}
.toc__link{
  display:block;padding:9px 14px;
  font-size:13.5px;letter-spacing:.06em;
  color:rgba(26,29,27,.6);
  border-left:2px solid rgba(14,81,71,.14);
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.toc__link:hover{color:var(--jade);background:rgba(14,81,71,.05);}
.toc__link.is-current{
  color:var(--cinnabar);font-weight:600;
  border-left-color:var(--cinnabar);
  background:rgba(178,51,39,.06);
}

/* ============================================================
   图片容器基础规则（页面阶段放置占位图）
   ============================================================ */
.figure-frame{
  position:relative;overflow:hidden;
  background:var(--felt);
  clip-path:polygon(var(--notch) 0,100% 0,100% calc(100% - var(--notch)),
                    calc(100% - var(--notch)) 100%,0 100%,0 var(--notch));
}
.figure-frame--table{aspect-ratio:16/10;}
.figure-frame--square{aspect-ratio:1/1;}
.figure-frame--tall{aspect-ratio:4/5;}
.figure-frame img,
.figure-frame__img{width:100%;height:100%;object-fit:cover;}
.figure-frame__note{
  position:absolute;left:0;right:0;bottom:0;
  padding:22px 16px 14px;
  font-size:12.5px;letter-spacing:.06em;color:var(--paper);
  background:linear-gradient(to top,rgba(7,42,37,.9),rgba(7,42,37,0));
}
.figure-frame__note p{max-width:none;}

/* ============================================================
   显现动画协议
   ============================================================ */
.has-js [data-reveal]{
  opacity:0;transform:translateY(8px);
  transition:opacity .4s ease-out,transform .4s ease-out;
}
.has-js [data-reveal].is-in{opacity:1;transform:none;}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1080px){
  .brand-lockup__tagline{display:none;}
  .capsule-nav__link{padding:8px 12px;font-size:13px;}
  .header-actions .btn{padding:10px 14px;font-size:13px;}
}

@media (max-width:920px){
  .header-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .capsule-nav{
    position:fixed;left:12px;right:12px;top:78px;z-index:130;
    display:none;flex-direction:column;justify-content:flex-start;
    padding:18px 18px 22px;border-radius:22px;
    background:var(--jade-deep);
    border:1px solid rgba(192,138,62,.4);
    box-shadow:0 24px 60px rgba(7,42,37,.5);
    max-height:calc(100vh - 110px);overflow:auto;
  }
  .capsule-nav[data-open]{
    display:flex;
    animation:navDrop .28s var(--ease) both;
  }
  .capsule-nav__list{
    flex-direction:column;align-items:stretch;gap:4px;
    padding:0;border:0;background:none;
  }
  .capsule-nav__link{
    padding:14px 16px;border-radius:12px;
    font-family:var(--font-display);font-size:18px;
  }
  .capsule-nav__foot{
    display:block;margin-top:14px;
    font-size:12px;letter-spacing:.16em;color:rgba(79,195,161,.8);
  }
  .grid--2,.grid--3,.grid--rail{grid-template-columns:minmax(0,1fr);}
  .site-footer__inner{grid-template-columns:minmax(0,1fr);gap:40px;padding:56px 0 40px;}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .section{padding:56px 0;}
  .site-footer{margin-top:64px;}
}

@media (max-width:620px){
  body{font-size:15.5px;}
  .brand-lockup__score{width:40px;height:40px;font-size:19px;}
  .brand-lockup__name{font-size:15px;}
  .footer-cols{grid-template-columns:minmax(0,1fr);}
  .site-header{padding:8px 0 10px;}
  .capsule-nav{top:70px;}
  .panel{padding:20px;}
  .to-top{right:14px;bottom:16px;width:44px;height:44px;}
  .section{padding:44px 0;}
}

@keyframes navDrop{
  from{opacity:0;transform:translateY(-8px);}
  to{opacity:1;transform:none;}
}

/* ============================================================
   动效偏好
   ============================================================ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .has-js [data-reveal]{opacity:1;transform:none;}
  .to-top{transition:none;}
}