:root{
  --sakura:#e8547c;
  --sakura-deep:#c93a63;
  --sakura-light:#ffd6e2;
  --sakura-soft:#fff0f4;
  --ink:#2a2230;
  --ink-soft:#5c5263;
  --ink-mute:#8a8090;
  --bg:#fffafc;
  --bg-alt:#fff3f7;
  --card:#ffffff;
  --card-glass:rgba(255,255,255,.72);
  --border:rgba(232,84,124,.16);
  --shadow:0 10px 30px rgba(201,58,99,.10);
  --shadow-hover:0 18px 44px rgba(201,58,99,.20);
  --radius:20px;
  --radius-sm:12px;
  --header-h:72px;
  --maxw:1180px;
  --ease:cubic-bezier(.22,.68,.36,1);
}

[data-theme="dark"]{
  --sakura:#ff7ba0;
  --sakura-deep:#ff9ab8;
  --sakura-light:#4a2634;
  --sakura-soft:#2a1a22;
  --ink:#f3ecf1;
  --ink-soft:#cfc2cc;
  --ink-mute:#a496a2;
  --bg:#17121a;
  --bg-alt:#1e1722;
  --card:#221a27;
  --card-glass:rgba(34,26,39,.72);
  --border:rgba(255,123,160,.20);
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --shadow-hover:0 18px 44px rgba(255,123,160,.18);
}

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

html{
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 16px);
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  background-image:
    radial-gradient(circle at 12% 0%,rgba(232,84,124,.10),transparent 42%),
    radial-gradient(circle at 88% 8%,rgba(255,182,205,.16),transparent 40%);
  background-attachment:fixed;
  transition:background-color .35s var(--ease),color .35s var(--ease);
  overflow-x:hidden;
}

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

a{
  color:var(--sakura-deep);
  text-decoration:none;
  transition:color .25s var(--ease);
}
a:hover{color:var(--sakura);}

h1,h2,h3,h4{
  line-height:1.35;
  color:var(--ink);
  margin:0 0 .6em;
  font-weight:700;
  letter-spacing:.01em;
}
h1{font-size:clamp(1.6rem,3.4vw,2.5rem);}
h2{font-size:clamp(1.35rem,2.6vw,1.9rem);}
h3{font-size:clamp(1.1rem,1.9vw,1.35rem);}

p{margin:0 0 1em;color:var(--ink-soft);}
strong{color:var(--ink);font-weight:600;}

ul,ol{margin:0 0 1em;padding-left:1.4em;color:var(--ink-soft);}
li{margin:.35em 0;}

blockquote{
  margin:1em 0;
  padding:14px 20px;
  border-left:4px solid var(--sakura);
  background:var(--sakura-soft);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--ink-soft);
  font-style:normal;
}

::selection{background:var(--sakura);color:#fff;}

:focus-visible{
  outline:3px solid var(--sakura);
  outline-offset:3px;
  border-radius:6px;
}

/* ===== Header ===== */
#site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--card-glass);
  -webkit-backdrop-filter:saturate(180%) blur(18px);
  backdrop-filter:saturate(180%) blur(18px);
  border-bottom:1px solid var(--border);
  box-shadow:0 4px 24px rgba(201,58,99,.06);
  transition:background-color .35s var(--ease),box-shadow .3s var(--ease);
}

.header-inner{
  max-width:var(--maxw);
  margin:0 auto;
  min-height:var(--header-h);
  padding:10px 20px;
  display:flex;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}

.brand .logo{
  width:40px;
  height:40px;
  filter:drop-shadow(0 4px 10px rgba(232,84,124,.35));
  transition:transform .5s var(--ease);
}
.brand:hover .logo{transform:rotate(18deg) scale(1.06);}

.brand-name{
  font-size:1.22rem;
  font-weight:800;
  letter-spacing:.04em;
  background:linear-gradient(120deg,var(--sakura-deep),var(--sakura),#ff9ab8);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  color:var(--sakura-deep);
  white-space:nowrap;
}

.main-nav{flex:1 1 auto;min-width:0;}
.main-nav ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:4px;
  justify-content:center;
}
.main-nav li{margin:0;}
.main-nav a{
  display:inline-block;
  padding:6px 11px;
  border-radius:999px;
  font-size:.9rem;
  color:var(--ink-soft);
  font-weight:500;
  transition:background-color .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.main-nav a:hover{
  background:var(--sakura-soft);
  color:var(--sakura-deep);
  transform:translateY(-2px);
}

.header-tools{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}

.site-search{
  display:flex;
  align-items:center;
  background:var(--bg-alt);
  border:1px solid var(--border);
  border-radius:999px;
  padding:3px 3px 3px 14px;
  transition:box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.site-search:focus-within{
  border-color:var(--sakura);
  box-shadow:0 0 0 4px rgba(232,84,124,.14);
}
.site-search input{
  border:0;
  background:transparent;
  color:var(--ink);
  font-size:.88rem;
  padding:6px 4px;
  width:150px;
  outline:none;
  font-family:inherit;
}
.site-search input::placeholder{color:var(--ink-mute);}
.site-search button{
  border:0;
  cursor:pointer;
  font-family:inherit;
  font-size:.85rem;
  font-weight:600;
  color:#fff;
  background:linear-gradient(135deg,var(--sakura),var(--sakura-deep));
  padding:7px 16px;
  border-radius:999px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.site-search button:hover{
  transform:translateY(-1px);
  box-shadow:0 6px 16px rgba(232,84,124,.35);
}

#theme-toggle,#menu-toggle{
  cursor:pointer;
  font-family:inherit;
  font-size:.85rem;
  font-weight:600;
  color:var(--sakura-deep);
  background:var(--sakura-soft);
  border:1px solid var(--border);
  padding:8px 14px;
  border-radius:999px;
  transition:background-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
  white-space:nowrap;
}
#theme-toggle:hover,#menu-toggle:hover{
  background:var(--sakura-light);
  transform:translateY(-2px);
  box-shadow:0 6px 16px rgba(232,84,124,.22);
}
#menu-toggle{display:none;}

/* ===== Breadcrumb ===== */
.breadcrumb{
  max-width:var(--maxw);
  margin:0 auto;
  padding:14px 20px 0;
}
.breadcrumb ol{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin:0;
  padding:0;
  font-size:.85rem;
  color:var(--ink-mute);
}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li:not(:last-child)::after{
  content:"";
  width:6px;height:6px;
  border-top:1.5px solid var(--ink-mute);
  border-right:1.5px solid var(--ink-mute);
  transform:rotate(45deg);
  opacity:.6;
}
.breadcrumb a{color:var(--ink-soft);}
.breadcrumb a:hover{color:var(--sakura);}
.breadcrumb [aria-current="page"]{color:var(--sakura-deep);font-weight:600;}

/* ===== Main / Sections ===== */
main{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 20px 60px;
}

.section{
  margin:34px 0;
  padding:clamp(22px,4vw,42px);
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
  transition:box-shadow .35s var(--ease),transform .35s var(--ease),background-color .35s var(--ease);
}
.section::before{
  content:"";
  position:absolute;
  top:-60px;right:-60px;
  width:160px;height:160px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(232,84,124,.10),transparent 70%);
  pointer-events:none;
}
.section:hover{box-shadow:var(--shadow-hover);}

.section > h2{
  position:relative;
  padding-left:18px;
  margin-bottom:1em;
}
.section > h2::before{
  content:"";
  position:absolute;
  left:0;top:.18em;
  width:6px;
  height:1.1em;
  border-radius:6px;
  background:linear-gradient(180deg,var(--sakura),#ff9ab8);
  box-shadow:0 2px 8px rgba(232,84,124,.4);
}

/* ===== Hero / Banner ===== */
#banner.hero{
  margin:26px 0 0;
  padding:0;
  border:0;
  background:transparent;
  box-shadow:none;
  overflow:visible;
}
#banner.hero::before{display:none;}

.hero-slider{
  position:relative;
  border-radius:calc(var(--radius) + 6px);
  overflow:hidden;
  background:
    linear-gradient(120deg,#ffd6e2 0%,#ffb6cd 26%,#e8547c 62%,#b23a63 100%);
  box-shadow:0 24px 60px rgba(201,58,99,.28);
  isolation:isolate;
}
.hero-slider::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 82% 18%,rgba(255,255,255,.42),transparent 46%),
    radial-gradient(circle at 8% 92%,rgba(255,255,255,.18),transparent 50%);
  pointer-events:none;
  z-index:0;
}

.slide{
  position:relative;
  z-index:1;
  padding:clamp(32px,6vw,72px) clamp(22px,5vw,64px);
  color:#fff;
  opacity:0;
  transform:translateY(18px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
}
.slide.active{opacity:1;transform:none;}

.slide h1{
  color:#fff;
  text-shadow:0 3px 18px rgba(120,20,50,.28);
  margin-bottom:.5em;
  letter-spacing:.01em;
}
.hero-lead{
  color:rgba(255,255,255,.94);
  font-size:clamp(.95rem,1.6vw,1.06rem);
  max-width:820px;
  text-shadow:0 2px 10px rgba(120,20,50,.20);
}

.cta{
  display:inline-block;
  margin-top:14px;
  padding:13px 32px;
  border-radius:999px;
  font-weight:700;
  font-size:.98rem;
  color:var(--sakura-deep);
  background:rgba(255,255,255,.96);
  box-shadow:0 10px 26px rgba(120,20,50,.24);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background-color .3s var(--ease);
}
.cta:hover{
  color:var(--sakura-deep);
  transform:translateY(-3px) scale(1.02);
  box-shadow:0 16px 36px rgba(120,20,50,.32);
  background:#fff;
}
.cta:active{transform:translateY(0) scale(.99);}

/* ===== News list ===== */
.news-list{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap:16px;
}
.news-list li{
  margin:0;
  padding:18px 22px;
  border-radius:var(--radius-sm);
  background:var(--bg-alt);
  border:1px solid var(--border);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.news-list li:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow);
  border-color:rgba(232,84,124,.38);
}
.news-list h3{margin:0 0 .3em;font-size:1.08rem;}
.news-list h3 a{color:var(--ink);}
.news-list h3 a:hover{color:var(--sakura-deep);}
.news-list p{margin:0 0 .4em;font-size:.94rem;}
.news-list .meta{
  font-size:.82rem;
  color:var(--ink-mute);
  letter-spacing:.02em;
}

/* ===== Articles ===== */
#articles article{
  padding:22px 24px;
  margin:0 0 18px;
  border-radius:var(--radius-sm);
  background:var(--bg-alt);
  border:1px solid var(--border);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background-color .3s var(--ease);
}
#articles article:last-child{margin-bottom:0;}
#articles article:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  background:var(--card);
}
#articles article h3{
  font-size:1.1rem;
  margin-bottom:.35em;
}
#articles article .meta{
  font-size:.8rem;
  color:var(--ink-mute);
  margin-bottom:.7em;
}
#articles article p:last-child{margin-bottom:0;}
#articles article a{
  display:inline-block;
  font-weight:600;
  font-size:.9rem;
  padding:6px 16px;
  border-radius:999px;
  background:var(--sakura-soft);
  transition:background-color .25s var(--ease),transform .25s var(--ease);
}
#articles article a:hover{
  background:var(--sakura-light);
  transform:translateX(4px);
}

/* ===== FAQ ===== */
.faq-item{
  padding:20px 22px;
  margin:0 0 14px;
  border-radius:var(--radius-sm);
  background:var(--bg-alt);
  border:1px solid var(--border);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.faq-item:last-child{margin-bottom:0;}
.faq-item:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow);
  border-color:rgba(232,84,124,.36);
}
.faq-item h3{
  font-size:1.04rem;
  margin-bottom:.45em;
  color:var(--sakura-deep);
  position:relative;
  padding-left:26px;
}
.faq-item h3::before{
  content:"Q";
  position:absolute;
  left:0;top:.02em;
  width:20px;height:20px;
  display:grid;
  place-items:center;
  font-size:.72rem;
  font-weight:800;
  color:#fff;
  background:linear-gradient(135deg,var(--sakura),var(--sakura-deep));
  border-radius:6px;
  line-height:1;
}
.faq-item p{margin:0;font-size:.95rem;}

/* ===== HowTo ===== */
#howto ol{
  counter-reset:step;
  list-style:none;
  padding:0;
}
#howto ol li{
  counter-increment:step;
  position:relative;
  padding:14px 18px 14px 56px;
  margin:0 0 10px;
  background:var(--bg-alt);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
#howto ol li::before{
  content:counter(step);
  position:absolute;
  left:16px;top:50%;
  transform:translateY(-50%);
  width:26px;height:26px;
  display:grid;
  place-items:center;
  font-size:.82rem;
  font-weight:800;
  color:#fff;
  background:linear-gradient(135deg,var(--sakura),var(--sakura-deep));
  border-radius:50%;
  box-shadow:0 4px 12px rgba(232,84,124,.35);
}
#howto ol li:hover{
  transform:translateX(5px);
  box-shadow:var(--shadow);
}

/* ===== Contact ===== */
.contact-list{
  list-style:none;
  padding:0;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:12px;
}
.contact-list li{
  margin:0;
  padding:14px 18px;
  border-radius:var(--radius-sm);
  background:var(--bg-alt);
  border:1px solid var(--border);
  font-size:.94rem;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.contact-list li:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow);
  border-color:rgba(232,84,124,.36);
}

/* ===== Sitemap ===== */
.sitemap-list{
  list-style:none;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.sitemap-list li{margin:0;}
.sitemap-list a{
  display:inline-block;
  padding:8px 18px;
  border-radius:999px;
  font-size:.9rem;
  font-weight:500;
  color:var(--ink-soft);
  background:var(--bg-alt);
  border:1px solid var(--border);
  transition:background-color .25s var(--ease),color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.sitemap-list a:hover{
  color:#fff;
  background:linear-gradient(135deg,var(--sakura),var(--sakura-deep));
  border-color:transparent;
  transform:translateY(-3px);
  box-shadow:0 8px 20px rgba(232,84,124,.32);
}

/* ===== Footer ===== */
#site-footer{
  background:var(--bg-alt);
  border-top:1px solid var(--border);
  padding:48px 20px 28px;
  margin-top:20px;
}
.footer-inner{
  max-width:var(--maxw);
  margin:0 auto;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:28px;
}
#site-footer section{
  background:var(--card-glass);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:20px 22px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
#site-footer section:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow);
}
#site-footer h2{
  font-size:1.02rem;
  color:var(--sakura-deep);
  margin-bottom:.6em;
  padding-bottom:.5em;
  border-bottom:1px dashed var(--border);
}
#site-footer p{font-size:.88rem;margin:0 0 .6em;}
#site-footer p:last-child{margin-bottom:0;}
#site-footer ul{
  list-style:none;
  padding:0;
  margin:0;
}
#site-footer ul li{margin:.3em 0;}
#site-footer ul a{
  font-size:.9rem;
  color:var(--ink-soft);
  transition:color .25s var(--ease),padding-left .25s var(--ease);
}
#site-footer ul a:hover{
  color:var(--sakura-deep);
  padding-left:6px;
}
.copyright{
  grid-column:1 / -1;
  text-align:center;
  font-size:.82rem;
  color:var(--ink-mute);
  margin:6px 0 0;
  padding-top:20px;
  border-top:1px solid var(--border);
}

/* ===== Back to top ===== */
#back-to-top{
  position:fixed;
  right:22px;
  bottom:26px;
  z-index:120;
  cursor:pointer;
  font-family:inherit;
  font-size:.82rem;
  font-weight:600;
  color:#fff;
  background:linear-gradient(135deg,var(--sakura),var(--sakura-deep));
  border:0;
  padding:12px 18px;
  border-radius:999px;
  box-shadow:0 10px 26px rgba(201,58,99,.38);
  opacity:0;
  visibility:hidden;
  transform:translateY(14px);
  transition:opacity .35s var(--ease),transform .35s var(--ease),visibility .35s var(--ease),box-shadow .3s var(--ease);
}
#back-to-top.show{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
#back-to-top:hover{
  transform:translateY(-4px);
  box-shadow:0 16px 36px rgba(201,58,99,.5);
}

/* ===== Scroll reveal ===== */
.reveal{
  opacity:0;
  transform:translateY(28px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
  will-change:opacity,transform;
}
.reveal.visible{
  opacity:1;
  transform:none;
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .header-inner{gap:12px;}
  .main-nav ul{justify-content:flex-start;}
  .site-search input{width:120px;}
}

@media (max-width:860px){
  :root{--header-h:64px;}
  .header-inner{padding:10px 16px;}
  .main-nav{
    order:4;
    flex-basis:100%;
    max-height:0;
    overflow:hidden;
    transition:max-height .4s var(--ease);
  }
  .main-nav.open{max-height:520px;}
  .main-nav ul{
    flex-direction:column;
    gap:2px;
    padding:8px 0 4px;
    border-top:1px solid var(--border);
  }
  .main-nav a{
    display:block;
    padding:10px 14px;
    border-radius:var(--radius-sm);
  }
  #menu-toggle{display:inline-block;}
  .site-search{display:none;}
  main{padding:0 16px 48px;}
  .breadcrumb{padding:12px 16px 0;}
  #site-footer{padding:36px 16px 24px;}
}

@media (max-width:560px){
  body{font-size:15px;line-height:1.8;}
  .header-inner{gap:8px;}
  .brand-name{font-size:1.08rem;}
  .brand .logo{width:34px;height:34px;}
  #theme-toggle,#menu-toggle{padding:7px 12px;font-size:.8rem;}
  .section{padding:20px 16px;border-radius:16px;margin:22px 0;}
  .hero-slider{border-radius:18px;}
  .slide{padding:30px 20px 34px;}
  .cta{width:100%;text-align:center;padding:13px 20px;}
  .news-list li,#articles article,.faq-item{padding:16px 16px;}
  #articles article a{width:100%;text-align:center;}
  .contact-list{grid-template-columns:1fr;}
  #howto ol li{padding:12px 14px 12px 52px;}
  #back-to-top{right:14px;bottom:16px;padding:10px 14px;font-size:.78rem;}
  .footer-inner{gap:16px;}
}

@media (hover:none){
  .section:hover,
  .news-list li:hover,
  #articles article:hover,
  .faq-item:hover,
  .contact-list li:hover,
  #site-footer section:hover{
    transform:none;
    box-shadow:var(--shadow);
  }
}