:root{
  --tibet-red:#A61B29;
  --tibet-gold:#D4AF37;
  --snow-white:#FDFEFE;
  --sky-blue:#5DADE2;
  --warm-paper:#F5E6C8;
  --dark-ink:#2C3E50;
  --tibet-purple:#6C3483;
  --cloud-gray:#EBEDEF;
  --serif:Georgia,"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","Microsoft YaHei","PingFang SC",system-ui,sans-serif;
  --shadow-1:4px 4px 0 rgba(44,62,80,0.12);
  --shadow-2:8px 8px 0 rgba(166,27,41,0.15);
  --border-1:2px solid var(--dark-ink);
  --border-2:4px solid var(--dark-ink);
  --radius:8px;
  --tran:0.2s cubic-bezier(0.25,0.46,0.45,0.94);
  --page-width:1180px;
}

*,
*::before,
*::after{
  box-sizing:border-box;
  margin:0;
  padding:0;
}

html{
  scroll-behavior:smooth;
}

html:focus-within{
  scroll-behavior:smooth;
}

body{
  font-family:var(--sans);
  background-color:var(--snow-white);
  color:var(--dark-ink);
  line-height:1.75;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

body.nav-open{
  overflow:hidden;
}

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

a{
  color:var(--tibet-red);
  text-decoration-thickness:1px;
  text-underline-offset:4px;
  transition:color var(--tran), background-color var(--tran), border-color var(--tran), opacity var(--tran);
}

a:hover{
  color:var(--tibet-gold);
}

p{
  margin-bottom:1rem;
}

h1,h2,h3,h4,h5,h6{
  font-family:var(--serif);
  line-height:1.25;
  color:var(--dark-ink);
  font-weight:900;
}

h1{
  font-size:clamp(2rem,4vw,3rem);
  margin-bottom:1rem;
}

h2{
  font-size:clamp(1.4rem,2.5vw,2rem);
  margin-bottom:0.75rem;
}

h3{
  font-size:clamp(1.2rem,2vw,1.5rem);
  margin-bottom:0.5rem;
}

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

::selection{
  background-color:var(--tibet-gold);
  color:var(--dark-ink);
}

/* ---- SKIP LINK ---- */
.skip-link{
  position:absolute;
  top:-60px;
  left:12px;
  background:var(--tibet-red);
  color:var(--snow-white);
  padding:0.8rem 1.2rem;
  z-index:2000;
  font-weight:700;
  border-radius:0 0 var(--radius) var(--radius);
  text-decoration:none;
  transition:top var(--tran);
}

.skip-link:focus-visible{
  top:0;
  color:var(--snow-white);
}

/* ---- HEADER ---- */
.site-header{
  background:
    linear-gradient(180deg, rgba(166,27,41,0.4) 0%, rgba(166,27,41,0.1) 100%),
    var(--warm-paper);
  border-bottom:4px solid var(--tibet-red);
  position:relative;
  z-index:1000;
}

.site-header::after{
  content:"";
  display:block;
  height:4px;
  background:
    linear-gradient(90deg, var(--tibet-gold) 0%, var(--tibet-red) 30%, var(--tibet-gold) 70%, transparent 100%);
  width:100%;
}

.header-inner{
  max-width:var(--page-width);
  margin:0 auto;
  padding:1.2rem 1.5rem 0.8rem;
}

.brand-lockup{
  display:flex;
  justify-content:center;
  margin-bottom:0.5rem;
}

.brand-home-link{
  display:inline-flex;
  align-items:center;
  gap:0.9rem;
  text-decoration:none;
  color:var(--tibet-red);
  padding:0.3rem 1rem;
  border-radius:var(--radius);
}

.brand-home-link:hover{
  background-color:rgba(212,175,55,0.1);
  color:var(--tibet-red);
}

.brand-mark{
  display:flex;
  align-items:center;
  color:var(--tibet-gold);
}

.brand-mark svg{
  width:42px;
  height:42px;
}

.brand-text{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  line-height:1.1;
}

.brand-name{
  font-family:var(--serif);
  font-size:1.8rem;
  font-weight:900;
  letter-spacing:0.08em;
  color:var(--tibet-red);
}

.brand-sub{
  font-size:0.85rem;
  font-weight:700;
  letter-spacing:0.4em;
  color:var(--tibet-gold);
  text-transform:uppercase;
  background-color:var(--tibet-red);
  padding:0.1rem 0.5rem;
  border-radius:2px;
}

.decor-line{
  height:2px;
  background:linear-gradient(90deg, transparent, var(--tibet-gold), transparent);
  margin:0.4rem 0 0.6rem;
}

.main-nav ul{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:0.25rem;
  list-style:none;
  padding:0.2rem 0;
}

.main-nav a{
  display:block;
  padding:0.45rem 1.1rem;
  text-decoration:none;
  color:var(--dark-ink);
  font-weight:700;
  font-size:0.95rem;
  border-radius:30px;
  border:2px solid transparent;
  transition:color var(--tran), background-color var(--tran), border-color var(--tran);
}

.main-nav a:hover{
  color:var(--tibet-red);
  background-color:rgba(255,255,255,0.4);
  border-color:var(--tibet-gold);
}

.main-nav a[aria-current="page"]{
  color:var(--snow-white);
  background-color:var(--tibet-red);
  border-color:var(--tibet-gold);
}

.nav-toggle{
  display:none;
  background:var(--tibet-red);
  border:2px solid var(--tibet-gold);
  border-radius:var(--radius);
  padding:0.4rem;
  cursor:pointer;
  width:46px;
  height:40px;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:4px;
}

.toggle-bar{
  display:block;
  width:24px;
  height:3px;
  background:var(--snow-white);
  border-radius:3px;
  transition:transform var(--tran), opacity var(--tran);
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(1){
  transform:translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(2){
  opacity:0;
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(3){
  transform:translateY(-7px) rotate(-45deg);
}

/* ---- FOOTER ---- */
.site-footer{
  background:var(--dark-ink);
  color:var(--snow-white);
  position:relative;
}

.site-footer::before{
  content:"";
  display:block;
  height:6px;
  background:linear-gradient(90deg, var(--tibet-red) 0%, var(--tibet-gold) 30%, var(--tibet-purple) 50%, var(--tibet-gold) 70%, var(--tibet-red) 100%);
}

.footer-inner{
  max-width:var(--page-width);
  margin:0 auto;
  padding:3rem 1.5rem 2rem;
  display:grid;
  grid-template-columns:1.1fr 1.3fr 0.9fr 0.7fr;
  gap:2.5rem;
}

.footer-brand-block{
  display:flex;
  flex-direction:column;
  gap:0.7rem;
}

.footer-brand{
  display:flex;
  align-items:center;
  gap:0.6rem;
  font-family:var(--serif);
  font-size:1.3rem;
  font-weight:900;
  color:var(--tibet-gold);
}

.footer-logo{
  font-size:1.6rem;
  color:var(--tibet-red);
}

.footer-brand-name{
  letter-spacing:0.02em;
}

.footer-tagline{
  color:var(--sky-blue);
  font-size:0.95rem;
  font-style:italic;
  margin-bottom:0.5rem;
}

.footer-trust{
  color:var(--cloud-gray);
  font-size:0.85rem;
  line-height:1.6;
  padding:0.8rem;
  border-left:3px solid var(--tibet-gold);
  background-color:rgba(212,175,55,0.08);
  margin-bottom:0;
}

.footer-heading{
  font-family:var(--sans);
  font-size:0.8rem;
  letter-spacing:0.2em;
  text-transform:uppercase;
  color:var(--tibet-gold);
  border-bottom:1px solid rgba(212,175,55,0.3);
  padding-bottom:0.6rem;
  margin-bottom:1rem;
}

.footer-contact-list,
.footer-links{
  list-style:none;
  margin:0;
  padding:0;
}

.footer-contact-list li{
  display:flex;
  gap:0.6rem;
  align-items:baseline;
  font-size:0.88rem;
  padding:0.3rem 0;
}

.contact-label{
  display:inline-block;
  width:50px;
  flex-shrink:0;
  color:var(--sky-blue);
  font-weight:700;
  font-size:0.8rem;
  letter-spacing:0.05em;
}

.footer-contact-list a,
.footer-links a{
  color:var(--snow-white);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color var(--tran), border-color var(--tran);
}

.footer-contact-list a:hover,
.footer-links a:hover{
  color:var(--tibet-gold);
  border-bottom-color:var(--tibet-gold);
}

.footer-links li{
  margin-bottom:0.4rem;
}

.footer-links a{
  font-size:0.9rem;
  display:inline-block;
  padding-left:0.5rem;
  border-left:2px solid var(--tibet-red);
}

.footer-links a:hover{
  border-left-color:var(--tibet-gold);
}

.footer-end-block{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:0.6rem;
}

.footer-blessing{
  font-family:var(--serif);
  font-size:1.3rem;
  font-weight:900;
  color:var(--tibet-red);
  letter-spacing:0.1em;
  background:var(--tibet-gold);
  padding:0.2rem 1rem;
  border-radius:4px;
  margin-bottom:0.2rem;
}

.footer-icp{
  color:var(--cloud-gray);
  font-size:0.8rem;
}

.footer-copyright{
  color:var(--cloud-gray);
  font-size:0.78rem;
}

.scroll-top{
  margin-top:1rem;
  background:transparent;
  border:2px solid var(--tibet-gold);
  color:var(--tibet-gold);
  padding:0.5rem 1rem;
  border-radius:30px;
  cursor:pointer;
  font-weight:700;
  font-size:0.85rem;
  transition:background-color var(--tran), color var(--tran);
}

.scroll-top:hover{
  background-color:var(--tibet-gold);
  color:var(--dark-ink);
}

/* ---- COMMON LAYOUT ---- */
.page-sections{
  max-width:var(--page-width);
  margin:0 auto;
  padding:2.5rem 1.5rem 4rem;
}

.panel{
  background-color:var(--snow-white);
  border:var(--border-1);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  padding:2rem;
  margin-bottom:2.5rem;
  transition:box-shadow var(--tran), transform var(--tran);
}

.panel:hover{
  box-shadow:var(--shadow-2);
  transform:translate(-1px,-2px);
}

.panel-highlight{
  background:var(--warm-paper);
  border-top:6px solid var(--tibet-gold);
}

.btn{
  display:inline-block;
  background-color:var(--tibet-red);
  color:var(--snow-white);
  border:2px solid var(--tibet-red);
  border-radius:30px;
  padding:0.6rem 1.8rem;
  font-weight:700;
  text-decoration:none;
  cursor:pointer;
  font-size:0.95rem;
  transition:background-color var(--tran), color var(--tran), border-color var(--tran);
}

.btn:hover{
  background-color:var(--snow-white);
  color:var(--tibet-red);
}

.btn-ghost{
  background-color:transparent;
  color:var(--tibet-red);
  border-color:var(--tibet-red);
}

.btn-ghost:hover{
  background-color:var(--tibet-red);
  color:var(--snow-white);
}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  gap:0.5rem;
  font-size:0.85rem;
  margin-bottom:2rem;
  padding:0.5rem 0;
  border-bottom:2px solid var(--cloud-gray);
}

.breadcrumb a{
  color:var(--sky-blue);
  text-decoration:none;
  font-weight:700;
}

.breadcrumb a:hover{
  color:var(--tibet-data-red);
}

.breadcrumb span[aria-current="page"]{
  color:var(--dark-ink);
  font-weight:700;
}

.prose{
  max-width:70ch;
  line-height:1.9;
  color:var(--dark-ink);
}

.prose h2{
  margin-top:2rem;
  padding-top:1rem;
  border-top:2px solid var(--cloud-gray);
}

.prose blockquote{
  margin:1.5rem 0;
  padding:1rem 1.5rem;
  border-left:5px solid var(--tibet-gold);
  background-color:var(--warm-paper);
  font-style:italic;
  border-radius:0 var(--radius) var(--radius) 0;
}

.prose ul,
.prose ol{
  padding-left:1.5rem;
  margin-bottom:1rem;
}

.prose li{
  margin-bottom:0.4rem;
}

/* ---- IMAGE FRAME ---- */
.image-frame{
  position:relative;
  background:var(--warm-paper);
  border:var(--border-1);
  border-radius:var(--radius);
  overflow:hidden;
  aspect-ratio:16/9;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:1.5rem;
  box-shadow:var(--shadow-1);
}

.image-frame::after{
  content:attr(data-image-label);
  position:absolute;
  bottom:0;
  right:0;
  background:var(--tibet-red);
  color:var(--snow-white);
  font-size:0.8rem;
  padding:0.2rem 0.8rem;
  letter-spacing:0.1em;
  border-top-left-radius:6px;
}

.image-frame .placeholder-subject{
  width:100%;
  height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--tibet-red);
  opacity:0.7;
  font-family:var(--serif);
  font-size:1.2rem;
}

.image-frame-landscape{
  aspect-ratio:21/9;
}

.image-frame-square{
  aspect-ratio:1/1;
}

/* ---- REVEAL SCROLL ---- */
[data-reveal]{
  opacity:0;
  transform:translateY(24px);
  transition:opacity 0.4s ease, transform 0.4s ease;
}

[data-reveal].is-visible{
  opacity:1;
  transform:translateY(0);
}

/* ---- MOBILE NAV STATE ---- */
@media (max-width: 820px){
  .header-inner{
    display:grid;
    grid-template-columns:1fr auto;
    align-items:center;
  }

  .brand-lockup{
    justify-content:flex-start;
    margin-bottom:0.2rem;
  }

  .brand-mark svg{
    width:36px;
    height:36px;
  }

  .brand-name{
    font-size:1.4rem;
  }

  .brand-sub{
    font-size:0.7rem;
    letter-spacing:0.2em;
  }

  .nav-toggle{
    display:flex;
    justify-self:end;
  }

  .main-nav{
    grid-column:1 / -1;
    display:none;
    width:100%;
    margin-top:1rem;
    border-top:2px solid var(--tibet-gold);
    padding-top:0.5rem;
  }

  .main-nav[data-open]{
    display:block;
  }

  .main-nav ul{
    flex-direction:column;
    align-items:stretch;
  }

  .main-nav a{
    padding:0.8rem 1rem;
    border-radius:6px;
    border-left:4px solid transparent;
  }

  .main-nav a[aria-current="page"]{
    border-left-color:var(--tibet-gold);
  }

  .footer-inner{
    grid-template-columns:1fr 1fr;
    gap:2rem 1.5rem;
  }
}

@media (max-width: 600px){
  .footer-inner{
    grid-template-columns:1fr;
    gap:2rem;
  }

  .page-sections{
    padding:1.5rem 1rem 3rem;
  }

  .panel{
    padding:1.2rem;
  }

  .header-inner{
    padding:0.8rem 1rem 0.6rem;
  }

  .brand-lockup{
    margin-bottom:0;
  }
}

/* ---- REDUCED MOTION ---- */
@media (prefers-reduced-motion: reduce){
  *,
  *::before,
  *::after{
    animation-duration:0.001s !important;
    transition-duration:0.001s !important;
    scroll-behavior:auto !important;
  }

  [data-reveal]{
    opacity:1;
    transform:none;
  }
}