/* ===========================================================
   壹号娱乐官网 — /assets/site.css
   共享层：门牌体系（reset / 变量 / 排版 / 头尾 / 通用组件）
   =========================================================== */

/* ---------- 1. 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,figure,blockquote,dl,dd,ul,ol{margin:0}

ul,ol{padding:0;list-style:none}

img,svg,video{display:block;max-width:100%}

button,input,select,textarea{font:inherit;color:inherit}

a{color:inherit}

table{border-collapse:collapse;width:100%}

/* ---------- 2. Tokens ---------- */
:root{
  --door-orange:#E8622C;
  --ink-green:#1F4D3A;
  --cream:#F5EFE6;
  --amber:#F2B705;
  --wood:#4A2E1E;
  --warm-gray:#8C7B6B;
  --door-light:#FFD9A0;
  --moss:#DCE8DF;
  --night:#102B20;
  --copper:#B07A3C;
  --paper:#FFFCF7;

  --font-display:"Noto Serif SC","Songti SC","Source Han Serif SC",serif;
  --font-body:"Noto Sans SC","PingFang SC","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;

  --shell:1180px;
  --gutter:clamp(18px,4vw,44px);

  --radius-s:6px;
  --radius-m:10px;
  --radius-l:14px;

  --line:rgba(74,46,30,.16);
  --line-soft:rgba(74,46,30,.09);
  --shadow-1:0 2px 0 rgba(74,46,30,.05);
  --shadow-2:0 12px 28px -20px rgba(74,46,30,.6);

  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 3. Base typography ---------- */
body{
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--wood);
  background-color:var(--cream);
  background-image:
    radial-gradient(120% 62% at 8% -6%,rgba(255,217,160,.30),transparent 62%),
    radial-gradient(90% 48% at 100% 0%,rgba(220,232,223,.5),transparent 68%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.2;
  letter-spacing:.04em;
  color:var(--ink-green);
  text-wrap:balance;
}

h1{font-size:clamp(36px,4.5vw,48px);line-height:1.15}
h2{font-size:clamp(26px,3vw,32px)}
h3{font-size:20px;letter-spacing:.03em;line-height:1.35}
h4{font-size:17px;letter-spacing:.04em}

p{text-wrap:pretty}

strong{font-weight:700;color:var(--ink-green)}

a{text-decoration-thickness:1px;text-underline-offset:3px}

.mono{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  line-height:1.6;
}

/* ---------- 4. Accessibility ---------- */
:focus-visible{
  outline:2px solid var(--door-orange);
  outline-offset:3px;
  border-radius:2px;
}

.skip-link{
  position:fixed;
  top:10px;
  left:10px;
  z-index:900;
  transform:translateY(-240%);
  padding:10px 20px;
  border-radius:0 0 var(--radius-s) var(--radius-s);
  background:var(--ink-green);
  color:var(--cream);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  text-decoration:none;
  box-shadow:var(--shadow-2);
  transition:transform .18s var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible{transform:none;outline-offset:0}

/* ---------- 5. Shell & rhythm ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.page-main{display:block}

.section{padding-block:clamp(40px,6vw,72px)}
.section--tight{padding-block:clamp(26px,4vw,44px)}

.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.22em;
  color:var(--door-orange);
  margin:0 0 10px;
}

.section-num{
  display:block;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.24em;
  color:var(--copper);
  margin-bottom:8px;
}

.rule{
  height:1px;
  border:0;
  margin:0;
  background:linear-gradient(90deg,var(--line),transparent);
}

/* ---------- 6. Grid ---------- */
.grid{
  display:grid;
  gap:clamp(18px,2.6vw,32px);
  grid-template-columns:1fr;
}

@media (min-width:760px){
  .grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--split{grid-template-columns:minmax(0,4fr) minmax(0,8fr)}
}

@media (min-width:980px){
  .grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
}

/* ---------- 7. Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 22px;
  border:1px solid transparent;
  border-radius:var(--radius-s);
  background:transparent;
  color:var(--ink-green);
  font-family:var(--font-body);
  font-size:15px;
  line-height:1.4;
  letter-spacing:.02em;
  text-decoration:none;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),
             border-color .2s var(--ease),transform .2s var(--ease),
             box-shadow .2s var(--ease);
}

.btn::after{
  content:"";
  width:14px;
  height:1px;
  background:currentColor;
  transition:width .2s var(--ease);
}

.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn:hover::after{width:20px}

.btn--primary{background:var(--door-orange);color:var(--cream)}
.btn--primary:hover{background:#D4551F}

.btn--amber{background:var(--amber);color:var(--wood)}
.btn--amber:hover{background:#E0A904}

.btn--ghost{
  background:transparent;
  color:var(--ink-green);
  border-color:rgba(31,77,58,.32);
}
.btn--ghost:hover{background:rgba(31,77,58,.07);border-color:var(--ink-green)}

/* ---------- 8. Breadcrumb ---------- */
.breadcrumb{padding-block:18px 0}

.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--warm-gray);
}

.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--copper);opacity:.55}

.breadcrumb a{
  color:var(--warm-gray);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}

.breadcrumb a:hover{color:var(--door-orange);border-bottom-color:currentColor}
.breadcrumb [aria-current="page"]{color:var(--ink-green)}

/* ---------- 9. Card / tag ---------- */
.card{
  background:var(--paper);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-m);
  padding:clamp(18px,2.4vw,26px);
  box-shadow:var(--shadow-1);
  transition:box-shadow .24s var(--ease),transform .24s var(--ease),
             border-color .24s var(--ease);
}

.card:hover{
  box-shadow:var(--shadow-2);
  transform:translateY(-2px);
  border-color:rgba(232,98,44,.3);
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  border-radius:999px;
  background:var(--moss);
  color:var(--ink-green);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  line-height:1.8;
  white-space:nowrap;
}

.tag--amber{background:rgba(242,183,5,.24);color:var(--wood)}
.tag--green{background:rgba(31,77,58,.12);color:var(--ink-green)}
.tag--muted{background:rgba(140,123,107,.14);color:var(--warm-gray)}

/* ---------- 10. Media frames ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--radius-m);
  background:var(--moss);
  aspect-ratio:4 / 3;
}

.media img,
.media picture,
.media svg{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}

.media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(158deg,rgba(255,217,160,.24),transparent 58%);
  mix-blend-mode:screen;
}

.media--wide{aspect-ratio:16 / 9}
.media--portrait{aspect-ratio:3 / 4}
.media--square{aspect-ratio:1 / 1}
.media--door{
  aspect-ratio:5 / 7;
  border-radius:var(--radius-l) var(--radius-l) var(--radius-s) var(--radius-s);
  border:1px solid rgba(176,122,60,.4);
}

/* ---------- 11. Accordion ---------- */
.accordion{display:grid;gap:10px}

.accordion-item{
  background:var(--paper);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-m);
  overflow:hidden;
}

.accordion-trigger{
  display:flex;
  width:100%;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:16px 20px;
  background:transparent;
  border:0;
  text-align:left;
  cursor:pointer;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  color:var(--ink-green);
  transition:background-color .18s var(--ease);
}

.accordion-trigger:hover{background:var(--moss)}

.accordion-trigger::after{
  content:"+";
  font-family:var(--font-mono);
  font-size:18px;
  line-height:1;
  color:var(--door-orange);
  transition:transform .2s var(--ease);
}

.accordion-trigger[aria-expanded="true"]{
  background:rgba(31,77,58,.06);
  font-weight:700;
}

.accordion-trigger[aria-expanded="true"]::after{content:"−"}

.accordion-panel{
  padding:14px 20px 20px;
  border-top:1px solid var(--line-soft);
  font-size:15.5px;
  line-height:1.85;
  color:var(--wood);
}

.accordion-panel[hidden]{display:none}

/* ---------- 12. Scroll reveal ---------- */
.reveal-ready [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}

.reveal-ready [data-reveal].is-visible{
  opacity:1;
  transform:none;
}

/* ===========================================================
   13. HEADER
   =========================================================== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--cream);
}

/* 13.1 琥珀公告带 */
.header-strip{
  background:var(--amber);
  color:var(--wood);
  border-bottom:1px solid rgba(74,46,30,.16);
}

.strip-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  min-height:38px;
  padding-block:6px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
}

.strip-text{
  display:flex;
  align-items:center;
  gap:9px;
  margin:0;
  line-height:1.5;
}

.strip-dot{
  flex:none;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--door-orange);
  box-shadow:0 0 0 3px rgba(232,98,44,.22);
  animation:door-pulse 3s var(--ease) infinite;
}

@keyframes door-pulse{
  0%,100%{box-shadow:0 0 0 3px rgba(232,98,44,.22)}
  50%{box-shadow:0 0 0 6px rgba(232,98,44,.05)}
}

.strip-right{
  display:flex;
  align-items:center;
  gap:14px;
}

.strip-hint{
  display:none;
  margin:0;
  color:rgba(74,46,30,.6);
  letter-spacing:.16em;
}

.strip-cta{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:5px 13px;
  border-radius:var(--radius-s);
  background:var(--ink-green);
  color:var(--cream);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  text-decoration:none;
  white-space:nowrap;
  transition:background-color .18s var(--ease),transform .18s var(--ease);
}

.strip-cta::after{content:"→";font-size:11px;line-height:1}

.strip-cta:hover{background:var(--wood);transform:translateX(2px)}

/* 13.2 门楣主条 */
.header-bar{
  position:relative;
  background:rgba(245,239,230,.9);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
}

.bar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:76px;
}

/* 13.3 品牌门牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  padding:6px 2px;
  border-radius:var(--radius-s);
  text-decoration:none;
  color:var(--ink-green);
  transition:transform .2s var(--ease);
}

.brand:hover{transform:translateY(-1px)}

.brand-door{
  display:grid;
  place-items:center;
  flex:none;
  width:42px;
  height:42px;
  border-radius:var(--radius-s);
  background:var(--ink-green);
  color:var(--door-light);
  box-shadow:inset 0 0 0 1px rgba(255,217,160,.28);
}

.brand-door svg{
  transition:transform .2s var(--ease);
}

.brand:hover .brand-door svg{transform:translateX(2px)}

.brand-type{
  display:flex;
  flex-direction:column;
  line-height:1.1;
}

.brand-name{
  font-family:var(--font-display);
  font-weight:700;
  font-size:21px;
  letter-spacing:.1em;
  color:var(--ink-green);
}

.brand-sub{
  margin-top:4px;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.16em;
  color:var(--warm-gray);
}

/* 13.4 导航 */
.site-nav{
  display:flex;
  align-items:center;
  gap:4px;
}

.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
}

.nav-link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:10px 12px;
  border-radius:var(--radius-s);
  color:var(--wood);
  font-size:15px;
  letter-spacing:.02em;
  text-decoration:none;
  transition:color .18s var(--ease),background-color .18s var(--ease);
}

.nav-link::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:5px;
  height:2px;
  border-radius:2px;
  background:var(--door-orange);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}

.nav-num{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.1em;
  color:var(--copper);
  opacity:.85;
  transition:color .18s var(--ease),opacity .18s var(--ease);
}

.nav-link:hover{
  color:var(--ink-green);
  background:var(--moss);
}

.nav-link:hover::after{transform:scaleX(.4)}

.nav-link[aria-current="page"]{
  color:var(--ink-green);
  background:rgba(31,77,58,.08);
  font-weight:700;
}

.nav-link[aria-current="page"]::after{transform:scaleX(1)}

.nav-link[aria-current="page"] .nav-num{
  color:var(--door-orange);
  opacity:1;
}

/* 13.5 移动端门闩按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:9px 14px;
  border:1px solid transparent;
  border-radius:var(--radius-s);
  background:var(--ink-green);
  color:var(--cream);
  cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}

.nav-toggle:hover{background:var(--night)}

.nav-toggle-icon{
  display:inline-flex;
  flex-direction:column;
  justify-content:space-between;
  width:16px;
  height:12px;
}

.nav-toggle-icon i{
  display:block;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}

.nav-toggle-label{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
}

.site-header[data-open="true"] .nav-toggle{
  background:var(--door-orange);
  color:#fff;
}

.site-header[data-open="true"] .nav-toggle-icon i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle-icon i:nth-child(2){opacity:0}
.site-header[data-open="true"] .nav-toggle-icon i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* 13.6 阅读进度门缝 */
.scroll-meter{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  overflow:hidden;
  pointer-events:none;
  z-index:5;
}

.scroll-meter > span{
  display:block;
  width:100%;
  height:100%;
  background:linear-gradient(90deg,var(--door-orange),var(--amber));
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .1s linear;
}

/* ===========================================================
   14. FOOTER
   =========================================================== */
.site-footer{
  position:relative;
  margin-top:clamp(64px,10vw,120px);
  background:var(--ink-green);
  color:var(--cream);
  overflow:hidden;
}

.site-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:3px;
  background:linear-gradient(90deg,var(--door-orange),var(--amber),var(--door-light));
  z-index:2;
}

.site-footer::after{
  content:"";
  position:absolute;
  right:-12%;
  top:-38%;
  width:58vw;
  height:58vw;
  max-width:760px;
  max-height:760px;
  background:radial-gradient(circle,rgba(255,217,160,.16),transparent 62%);
  pointer-events:none;
}

.footer-top{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(30px,5vw,64px);
  padding-block:clamp(48px,7vw,80px);
}

.footer-eyebrow{
  margin:0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.24em;
  color:var(--door-light);
}

.footer-title{
  margin:10px 0 14px;
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(28px,4vw,40px);
  line-height:1.2;
  letter-spacing:.08em;
  color:var(--cream);
}

.footer-tagline{
  margin:0;
  max-width:36ch;
  font-size:15px;
  line-height:1.9;
  color:rgba(245,239,230,.78);
}

.footer-nav{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px 28px;
}

.footer-h{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.2em;
  color:var(--amber);
}

.footer-list{
  display:grid;
  gap:9px;
}

.footer-list a{
  position:relative;
  display:inline-block;
  color:rgba(245,239,230,.86);
  font-size:15px;
  line-height:1.7;
  text-decoration:none;
  transition:color .18s var(--ease),transform .18s var(--ease);
}

.footer-list a::before{
  content:"";
  position:absolute;
  left:-12px;
  top:50%;
  width:6px;
  height:1px;
  background:var(--door-light);
  opacity:0;
  transform:translateY(-50%);
  transition:opacity .18s var(--ease);
}

.footer-list a:hover{
  color:var(--door-light);
  transform:translateX(4px);
}

.footer-list a:hover::before{opacity:1}

.footer-contact{
  position:relative;
  z-index:1;
  padding-block:clamp(24px,4vw,36px);
  border-top:1px solid rgba(245,239,230,.16);
  border-bottom:1px solid rgba(245,239,230,.16);
}

.contact-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:20px 32px;
  margin:0;
}

.contact-item dt{
  margin-bottom:6px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  color:var(--amber);
}

.contact-item dd{
  margin:0;
  font-size:15px;
  line-height:1.75;
  color:rgba(245,239,230,.9);
  overflow-wrap:anywhere;
}

.contact-note{
  display:block;
  margin-top:6px;
  font-size:13px;
  line-height:1.7;
  color:rgba(245,239,230,.62);
}

.footer-base{
  position:relative;
  z-index:1;
  background:var(--night);
  color:rgba(245,239,230,.66);
}

.footer-base-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 24px;
  padding-block:18px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
}

.footer-copy,
.footer-icp{margin:0}

/* ===========================================================
   15. Responsive
   =========================================================== */
@media (min-width:720px){
  .strip-hint{display:block}
}

@media (min-width:820px){
  .footer-top{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr)}
  .contact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (min-width:1040px){
  .contact-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
}

@media (min-width:1041px){
  .footer-nav{gap:32px 40px}
}

@media (max-width:960px){
  .bar-inner{
    flex-wrap:wrap;
    min-height:70px;
    padding-block:10px;
    row-gap:0;
  }

  .nav-toggle{display:inline-flex}

  .site-nav{
    display:none;
    flex-basis:100%;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin-top:12px;
    padding-top:10px;
    border-top:1px solid var(--line-soft);
  }

  .site-header[data-open="true"] .site-nav{display:flex}

  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
  }

  .nav-link{
    justify-content:flex-start;
    padding:14px 12px;
    font-size:16px;
    border-radius:var(--radius-s);
  }

  .nav-link::after{display:none}

  .nav-link[aria-current="page"]{
    background:var(--moss);
    box-shadow:inset 3px 0 0 var(--door-orange);
  }
}

@media (max-width:560px){
  body{font-size:16px}
  .strip-hint{display:none}
  .strip-inner{font-size:11px}
  .strip-cta{font-size:10px;padding:4px 10px}
  .brand-name{font-size:19px}
  .brand-sub{font-size:10px;letter-spacing:.1em}
  .brand-door{width:38px;height:38px}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-base-inner{font-size:11px}
}

@media (max-width:380px){
  .nav-toggle-label{display:none}
  .brand-sub{display:none}
}

/* ===========================================================
   16. Reduced motion
   =========================================================== */
@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }

  .strip-dot{animation:none}

  .reveal-ready [data-reveal]{
    opacity:1 !important;
    transform:none !important;
    transition:none !important;
  }

  .scroll-meter > span{transition:none}

  .brand:hover,
  .card:hover,
  .btn:hover,
  .footer-list a:hover{transform:none}
}