/* =========================================================
   Rita · 贵州非遗故事集 — 共享设计系统
   Tokens / Topbar / Footer / Buttons
========================================================= */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'EB Garamond','Noto Serif SC',serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.65;
  overflow-x:clip;
}

:root{
  --paper:        #F2EFE7;
  --paper-2:      #E8E4D8;
  --white:        #FFFFFF;
  --ink:          #15171A;
  --ink-2:        #3A3D42;
  --ink-3:        #7A776E;
  --indigo:       #1F3A5F;
  --indigo-deep:  #11203A;
  --indigo-soft:  #E4E9F0;
  --cinnabar:     #B8352C;
  --cinnabar-soft:#F4DFD9;
  --silver:       #8E8B82;
  --bronze:       #8C6B2E;
  --line:         #CFC9BC;
  --line-2:       #B5B0A5;
}

/* TOPBAR */
.topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(242,239,231,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  max-width:1480px;margin:0 auto;
  padding:18px 40px;
  display:flex;align-items:center;gap:48px;
}
.brand{display:flex;align-items:baseline;gap:10px;flex-shrink:0}
.brand-en{
  font-family:'Playfair Display',serif;
  font-weight:700;font-size:22px;
  letter-spacing:-0.01em;color:var(--ink);
  font-style:italic;
}
.brand-cn{
  font-family:'Noto Serif SC',serif;
  font-weight:500;font-size:14px;
  color:var(--ink-3);
  letter-spacing:0.04em;
}
.topbar-nav{display:flex;align-items:center;gap:22px;flex:1}
.topbar-nav a{
  font-family:'Noto Serif SC',serif;
  font-size:12.5px;font-weight:500;
  color:var(--ink-2);text-decoration:none;
  position:relative;padding:4px 0;
  transition:color .2s;
  white-space:nowrap;
}
.topbar-nav a:hover{color:var(--cinnabar)}
.topbar-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;
  height:1px;background:var(--cinnabar);
  transform:scaleX(0);transform-origin:left;
  transition:transform .3s;
}
.topbar-nav a:hover::after{transform:scaleX(1)}
.topbar-actions{display:flex;align-items:center;gap:16px;flex-shrink:0}
.lang-toggle{
  display:inline-flex;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:99px;padding:2px;
}
.lang-btn{
  padding:5px 14px;
  font-family:'Playfair Display',serif;
  font-size:12.5px;font-weight:500;
  color:var(--ink-2);
  background:transparent;border:none;
  border-radius:99px;cursor:pointer;
  transition:all .2s;letter-spacing:0.04em;
}
.lang-btn.active{background:var(--indigo);color:var(--white)}
.signin{
  font-family:'Noto Serif SC',serif;
  font-size:13px;font-weight:500;
  color:var(--ink-2);text-decoration:none;
  padding:7px 16px;
  border:1px solid var(--line-2);
  border-radius:99px;transition:all .2s;
}
.signin:hover{border-color:var(--ink);color:var(--ink)}

/* BUTTONS */
.seal-btn{
  display:inline-flex;align-items:center;gap:12px;
  padding:14px 32px;
  background:var(--cinnabar);
  color:var(--white);
  font-family:'Playfair Display',serif;
  font-style:italic;font-size:16px;font-weight:500;
  border:2px solid var(--cinnabar);
  border-radius:99px;
  cursor:pointer;text-decoration:none;
  box-shadow:0 4px 16px rgba(184,53,44,.25);
  transition:all .25s;
  position:relative;
}
.seal-btn::before{
  content:"";position:absolute;inset:-3px;
  border:1px solid var(--cinnabar);
  border-radius:99px;
  opacity:0;transition:opacity .25s;
}
.seal-btn:hover{
  transform:translateY(-2px) rotate(-0.5deg);
  box-shadow:0 8px 24px rgba(184,53,44,.4);
}
.seal-btn:hover::before{opacity:1}
.line-btn{
  font-family:'Playfair Display',serif;
  font-style:italic;font-size:15px;
  color:var(--ink-2);
  background:transparent;border:none;
  border-bottom:1px solid var(--ink-3);
  padding:6px 2px;
  cursor:pointer;text-decoration:none;
  transition:all .2s;
}
.line-btn:hover{color:var(--cinnabar);border-color:var(--cinnabar)}

/* SECTION HEADS */
.section-inner{max-width:1480px;margin:0 auto}
.section-eyebrow{
  font-family:'Playfair Display',serif;
  font-style:italic;font-size:13px;
  color:var(--cinnabar);
  letter-spacing:0.18em;
  text-transform:uppercase;
  margin-bottom:18px;
  display:inline-flex;align-items:center;gap:12px;
}
.section-eyebrow::before{
  content:"";width:24px;height:1px;background:var(--cinnabar);
}
.section-title{
  font-family:'Playfair Display',serif;
  font-weight:700;
  font-size:clamp(36px,4.5vw,64px);
  line-height:1.1;color:var(--ink);
  letter-spacing:-0.01em;
  margin-bottom:18px;
}
.section-cn{
  font-family:'Noto Serif SC',serif;
  font-size:16px;line-height:1.85;
  color:var(--ink-2);
  max-width:540px;
  margin-bottom:80px;
}

/* STAMP (shared) */
.stamp{
  aspect-ratio:1;
  display:grid;place-items:center;
  border:1.5px solid var(--line);
  border-radius:50%;
  background:var(--white);
  background-size:cover;
  background-position:center;
  transition:all .25s;cursor:pointer;
  position:relative;
  padding:8px;
  overflow:hidden;
}
.stamp.earned{
  background-color:var(--cinnabar);
  background-blend-mode:multiply;
  border-color:var(--cinnabar);
  color:var(--white);
  box-shadow:0 2px 10px rgba(184,53,44,.3);
}
.stamp.earned::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(184,53,44,.35), rgba(120,30,20,.55));
  border-radius:50%;
  pointer-events:none;
}
.stamp-name{
  position:relative;z-index:1;
  text-shadow:0 1px 2px rgba(0,0,0,.4);
  font-family:'Noto Serif SC',serif;
  font-size:11px;font-weight:600;
  text-align:center;line-height:1.15;
  letter-spacing:0.02em;
}
.stamp-num{
  position:absolute;top:6px;right:8px;
  z-index:1;
  font-family:'Playfair Display',serif;
  font-style:italic;font-size:9px;
  color:rgba(0,0,0,.25);font-weight:500;
  text-shadow:0 1px 2px rgba(0,0,0,.3);
}
.stamp.earned .stamp-num{color:rgba(255,255,255,.5)}
.stamp.locked{
  opacity:0.5;cursor:not-allowed;
  background-color:var(--paper-2);
  background-blend-mode:normal;
  border-style:dashed;
}
.stamp:not(.locked):hover{
  transform:translateY(-3px) rotate(3deg);
  border-color:var(--cinnabar);
  box-shadow:0 6px 16px rgba(0,0,0,.1);
}
.stamp .fa-star{color:var(--bronze);font-size:8px;display:block;margin-top:3px}
.stamp.earned .fa-star{color:rgba(255,255,255,.7)}

/* FOOTER */
.footer{
  background:var(--ink);
  color:rgba(255,255,255,.5);
  padding:40px 40px;
  font-family:'Noto Serif SC',serif;
}
.footer-inner{
  max-width:1480px;margin:0 auto;
  display:flex;flex-direction:column;
  align-items:center;text-align:center;
  gap:14px;
}
.footer-licenses{
  font-size:12.5px;
  color:rgba(255,255,255,.6);
  display:flex;align-items:center;justify-content:center;
  gap:14px;flex-wrap:wrap;
  margin-bottom:6px;
}
.footer-licenses a{
  color:rgba(255,255,255,.75);
  text-decoration:none;
  transition:color .2s;
  letter-spacing:0.02em;
}
.footer-licenses a:hover{color:var(--white);text-decoration:underline}
.footer-copy{
  font-size:12.5px;
  color:rgba(255,255,255,.5);
  letter-spacing:0.04em;
}
.footer-copy a{
  color:rgba(255,255,255,.75);
  text-decoration:none;
  transition:color .2s;
  letter-spacing:0.04em;
}
.footer-copy a:hover{color:var(--white);text-decoration:underline}

/* RESPONSIVE */
@media (max-width:1080px){
  .topbar-inner{gap:24px}
  .topbar-nav{gap:16px}
  .topbar-nav a{font-size:12.5px;white-space:nowrap}
}

/* ---- 汉堡菜单（窄屏） ---- */
.nav-burger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:38px;height:38px;padding:0 8px;cursor:pointer;
  background:none;border:1px solid var(--line);border-radius:4px;
  transition:border-color .2s, background .2s;
}
.nav-burger:hover{border-color:var(--cinnabar);background:rgba(184,53,44,.06)}
.nav-burger span{
  display:block;height:1.6px;width:100%;background:var(--ink);
  transition:transform .25s, opacity .25s;
}
.nav-burger.open span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}
.topbar-menu{
  display:none;flex-direction:column;
  background:rgba(242,239,231,.98);backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
  padding:8px 24px 16px;
}
.topbar-menu.open{display:flex}
.topbar-menu a{
  font-family:'Noto Serif SC',serif;font-size:14.5px;color:var(--ink-2);
  text-decoration:none;padding:11px 2px;border-bottom:1px solid var(--line);
  letter-spacing:0.04em;
  transition:color .2s, padding-left .2s, border-color .2s;
}
.topbar-menu a:hover{
  color:var(--cinnabar);padding-left:10px;
  border-bottom-color:rgba(184,53,44,.35);
}
.topbar-menu a:last-child{border-bottom:none}
.topbar-menu a.active-link{color:var(--cinnabar)}
@media (max-width:920px){
  .topbar-inner{padding:12px 20px;gap:16px}
  .topbar-nav{display:none}
  .topbar-actions{margin-left:auto}
  .nav-burger{display:flex}
  .signin{display:none}
  .footer{padding:32px 20px}
}
/* 用 clip 而非 hidden：hidden 会创建非滚动容器导致 topbar 的 position:sticky 失效 */
html,body{overflow-x:clip}