@charset "utf-8";

/* ============================================================
   千果品牌站 · 共享样式 /assets/site.css
   墨黑 + 暖象牙白 + 果皮橙锚点 + 枝叶青绿分区
   ============================================================ */

:root{
  /* 色板 */
  --ink:#17150F;
  --ivory:#FBF6EC;
  --paper:#FFFFFF;
  --orange:#E2551E;
  --orange-deep:#A63A0D;
  --amber:#F2B735;
  --amber-pale:#FCEBC4;
  --leaf:#2F6E4F;
  --leaf-deep:#255840;
  --leaf-pale:#DCE9DF;
  --berry:#B5253C;
  --brown:#6B4A2F;
  --gray:#6E6A62;
  --rule:#E3DACB;

  /* 字体 */
  --font-display:"Songti SC","Noto Serif SC","Source Han Serif SC","SimSun",Georgia,"Times New Roman",serif;
  --font-body:"PingFang SC","Noto Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  /* 模块化字阶 1.25 */
  --step-12:0.75rem;
  --step-14:0.875rem;
  --step-16:1rem;
  --step-20:1.25rem;
  --step-25:1.5625rem;
  --step-31:1.9375rem;
  --step-39:2.4375rem;
  --step-49:3.0625rem;
  --step-61:3.8125rem;

  /* 形状 */
  --radius-lg:30px;
  --radius-md:18px;
  --radius-sm:12px;
  --radius-pill:999px;

  /* 尺度 */
  --shell:1180px;
  --shell-wide:1380px;
  --gutter:clamp(20px,5vw,56px);
  --ease:cubic-bezier(.22,.8,.28,1);
  --shadow-card:0 22px 44px -34px rgba(23,21,15,.5);
  --shadow-lift:0 16px 30px -20px rgba(23,21,15,.42);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--ivory);
  background-image:
    radial-gradient(60rem 40rem at 94% -8%, rgba(47,110,79,.13), transparent 62%),
    radial-gradient(48rem 34rem at 2% -6%, rgba(242,183,53,.22), transparent 58%);
  background-repeat:no-repeat;
  color:var(--ink);
  font-family:var(--font-body);
  font-size:clamp(16px,.4vw + 15px,17.5px);
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,ul,ol,dl,dd{margin:0}
ul,ol{padding:0}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px;border-radius:6px}
::selection{background:var(--amber);color:var(--ink)}
#main-content{scroll-margin-top:110px}

/* ---------- 中文排版 ---------- */
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.18;
  letter-spacing:.005em;
}
h1{font-size:clamp(2.35rem,5.4vw,var(--step-61))}
h2{font-size:clamp(1.85rem,3.4vw,var(--step-39))}
h3{font-size:clamp(1.25rem,2vw,var(--step-25))}
p{text-wrap:pretty}

/* ---------- 布局容器 ---------- */
.container{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.container--wide{max-width:var(--shell-wide)}
.section{padding-block:clamp(44px,6.5vw,92px)}
.section__head{max-width:64ch;margin-bottom:clamp(24px,3.5vw,48px)}
.section__title{margin-top:10px}
.divider{height:1px;border:0;background:var(--rule);margin-block:clamp(28px,4vw,56px)}

/* ---------- 文本原子 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:var(--step-12);
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--brown);
}
.eyebrow::before{
  content:"";
  flex:none;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--orange);
}
.label-mono{
  font-family:var(--font-mono);
  font-size:var(--step-12);
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--brown);
}
.lead{
  max-width:34em;
  font-size:var(--step-20);
  line-height:1.72;
  color:var(--gray);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border:1.5px solid transparent;
  border-radius:var(--radius-pill);
  font-size:var(--step-16);
  font-weight:600;
  line-height:1;
  text-align:center;
  white-space:nowrap;
  cursor:pointer;
  transition:transform .24s var(--ease),background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.btn--primary{background:var(--orange);color:#fff}
.btn--primary:hover{background:var(--orange-deep);transform:translateY(-3px)}
.btn--secondary{background:var(--leaf);color:#fff}
.btn--secondary:hover{background:var(--leaf-deep);transform:translateY(-3px)}
.btn--ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:var(--ivory);transform:translateY(-3px)}
.btn--small{padding:9px 16px;font-size:var(--step-14)}

/* ---------- 卡片 ---------- */
.card{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:clamp(20px,2.6vw,32px);
  background:var(--paper);
  border:1px solid var(--rule);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--orange);
  box-shadow:var(--shadow-lift);
}
.card__title{font-family:var(--font-display);font-size:var(--step-25);line-height:1.32}
.card__meta{font-family:var(--font-mono);font-size:var(--step-12);letter-spacing:.12em;color:var(--brown)}

/* ---------- 标签与筛选 ---------- */
.tag-wall{display:flex;flex-wrap:wrap;gap:10px 12px}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  background:var(--leaf-pale);
  color:var(--leaf);
  font-size:var(--step-14);
  line-height:1.45;
  transition:background-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.tag:hover{transform:translateY(-2px)}
.tag--active,
.tag[aria-pressed="true"]{background:var(--orange);color:#fff}
.tag--amber{background:var(--amber-pale);color:var(--brown)}

.filter-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding:10px;
  border:1px solid rgba(47,110,79,.2);
  border-radius:var(--radius-pill);
  background:var(--leaf-pale);
}
.filter-btn{
  padding:8px 18px;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  background:var(--paper);
  color:var(--leaf);
  font-size:var(--step-14);
  line-height:1.4;
  transition:background-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.filter-btn:hover{transform:translateY(-2px)}
.filter-btn[aria-pressed="true"]{background:var(--orange);color:#fff}
.filter-count{
  margin-left:auto;
  padding-right:14px;
  font-family:var(--font-mono);
  font-size:var(--step-12);
  letter-spacing:.1em;
  color:var(--brown);
}

/* ---------- 面包屑 ---------- */
.breadcrumbs{
  padding-block:18px;
  font-family:var(--font-mono);
  font-size:var(--step-12);
  letter-spacing:.1em;
  color:var(--brown);
}
.breadcrumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0}
.breadcrumbs__item+.breadcrumbs__item::before{content:"/";margin-right:8px;color:var(--rule)}
.breadcrumbs__item[aria-current="page"]{color:var(--gray)}
.breadcrumbs__link{
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.breadcrumbs__link:hover{color:var(--orange-deep);border-bottom-color:var(--orange-deep)}

/* ---------- 图片容器 ---------- */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:4/3;
  border-radius:var(--radius-lg);
  background:var(--leaf-pale);
}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--portrait{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame__img{width:100%;height:100%;object-fit:cover;display:block}
.media-frame__caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:var(--step-12);
  letter-spacing:.08em;
  color:var(--brown);
}

/* ---------- 贴纸 ---------- */
.sticker{
  display:inline-block;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  background:var(--amber);
  color:var(--ink);
  font-family:var(--font-mono);
  font-size:var(--step-12);
  letter-spacing:.12em;
  transform:rotate(-2deg);
}

/* ---------- 手风琴 ---------- */
.accordion{display:flex;flex-direction:column;gap:12px}
.accordion__item{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius-md);overflow:hidden}
.accordion__trigger{
  display:flex;
  width:100%;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  text-align:left;
  font-family:var(--font-display);
  font-size:var(--step-20);
  font-weight:700;
  line-height:1.4;
}
.accordion__trigger::after{
  content:"";
  flex:none;
  width:10px;height:10px;
  margin-right:4px;
  border-right:2px solid var(--orange);
  border-bottom:2px solid var(--orange);
  transform:rotate(45deg);
  transition:transform .25s var(--ease);
}
.accordion__trigger[aria-expanded="true"]::after{transform:rotate(-135deg)}
.accordion__panel{padding:0 22px 22px;color:var(--gray);font-size:var(--step-16)}

/* ---------- 入场动效（无 JS 时内容完整可见） ---------- */
.js-reveal [data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
.js-reveal [data-reveal][data-visible]{opacity:1;transform:none}

/* ============================================================
   页头
   ============================================================ */
.skip-link{
  position:fixed;
  left:50%;
  top:0;
  z-index:120;
  transform:translate(-50%,-160%);
  padding:10px 20px;
  border-radius:0 0 var(--radius-md) var(--radius-md);
  background:var(--ink);
  color:var(--ivory);
  font-size:var(--step-14);
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translate(-50%,0)}

.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(251,246,236,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--rule);
  transition:background-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header[data-stuck]{
  background:rgba(251,246,236,.96);
  box-shadow:0 18px 36px -32px rgba(23,21,15,.85);
}
.site-header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:clamp(16px,3vw,44px);
  width:100%;
  max-width:var(--shell-wide);
  margin-inline:auto;
  padding:clamp(12px,1.6vw,20px) var(--gutter);
  transition:padding .3s var(--ease);
}
.site-header[data-stuck] .site-header__inner{padding-block:9px}

.site-header__brand{display:flex;align-items:baseline;gap:16px;min-width:0}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-display);
  font-weight:700;
  font-size:var(--step-25);
  line-height:1;
  letter-spacing:.04em;
  transition:font-size .3s var(--ease);
}
.site-header[data-stuck] .brand{font-size:var(--step-20)}
.brand__mark{
  position:relative;
  flex:none;
  width:22px;height:22px;
  border-radius:52% 48% 46% 54% / 50% 54% 46% 50%;
  background:radial-gradient(circle at 34% 30%, #FF8A52, var(--orange) 58%, var(--orange-deep));
  box-shadow:inset -3px -4px 0 rgba(107,74,47,.22);
}
.brand__mark::after{
  content:"";
  position:absolute;
  top:-6px;right:-7px;
  width:11px;height:11px;
  border-radius:50% 0 50% 50%;
  background:var(--leaf);
  transform:rotate(-16deg);
}
.brand__text{white-space:nowrap}
.brand__tagline{
  font-family:var(--font-mono);
  font-size:var(--step-12);
  letter-spacing:.16em;
  color:var(--brown);
  white-space:nowrap;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);
}
.site-header[data-stuck] .brand__tagline{opacity:0;visibility:hidden}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 15px;
  border:1.5px solid var(--ink);
  border-radius:var(--radius-pill);
  background:var(--paper);
  font-family:var(--font-mono);
  font-size:var(--step-12);
  letter-spacing:.14em;
  color:var(--ink);
}
.nav-toggle__bars{
  position:relative;
  display:block;
  width:16px;height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:background-color .22s var(--ease);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .25s var(--ease),top .25s var(--ease);
}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}
.nav-toggle__label{white-space:nowrap}

.site-nav{display:flex;align-items:center;gap:clamp(14px,2.2vw,34px)}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(12px,1.7vw,26px);
  list-style:none;
  margin:0;
  padding:0;
}
.site-nav__item{display:flex}
.site-nav__link{
  position:relative;
  display:inline-block;
  padding:6px 2px;
  font-size:var(--step-14);
  letter-spacing:.06em;
  color:var(--ink);
  white-space:nowrap;
  transition:color .2s var(--ease);
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--orange);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .28s var(--ease);
}
.site-nav__link:hover{color:var(--orange-deep)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--orange-deep);font-weight:600}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.site-nav__cta{padding:11px 20px;font-size:var(--step-14)}

.site-header__progress{
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  background:linear-gradient(90deg,var(--orange),var(--amber));
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform .12s linear;
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;
  margin-top:clamp(64px,9vw,140px);
  background:var(--ink);
  color:var(--ivory);
  overflow:hidden;
}
.site-footer__curve{
  position:absolute;
  top:-1px;left:50%;
  width:170%;
  height:clamp(48px,7vw,86px);
  transform:translateX(-50%);
  background:var(--ivory);
  border-radius:0 0 50% 50% / 0 0 100% 100%;
  pointer-events:none;
}
.site-footer__inner{
  position:relative;
  z-index:1;
  width:100%;
  max-width:var(--shell-wide);
  margin-inline:auto;
  padding:clamp(84px,11vw,152px) var(--gutter) 30px;
}

.site-footer__top{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,2fr);
  gap:clamp(32px,5vw,80px);
  padding-bottom:clamp(32px,5vw,56px);
  border-bottom:1px solid rgba(251,246,236,.16);
}
.site-footer__brand{min-width:0}
.footer-brand{
  font-family:var(--font-display);
  font-size:clamp(2rem,4vw,var(--step-39));
  font-weight:700;
  line-height:1.1;
  letter-spacing:.06em;
  color:var(--ivory);
}
.footer-brand__line{
  max-width:30ch;
  margin-top:16px;
  font-size:var(--step-16);
  line-height:1.8;
  color:rgba(251,246,236,.72);
}

.site-footer__cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(20px,3vw,44px);
}
.footer-col{min-width:0}
.footer-col__title{
  margin-bottom:16px;
  font-family:var(--font-mono);
  font-size:var(--step-12);
  font-weight:400;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--amber);
}
.footer-col__list{display:flex;flex-direction:column;gap:10px;list-style:none;margin:0;padding:0}
.footer-col__link{
  display:inline-block;
  font-size:var(--step-16);
  color:rgba(251,246,236,.82);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col__link:hover{color:var(--amber);transform:translateX(4px)}

.site-footer__contact{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
  gap:clamp(20px,3vw,44px);
  padding-block:clamp(28px,4vw,48px);
}
.footer-contact__item{min-width:0}
.footer-contact__label{
  display:block;
  font-family:var(--font-mono);
  font-size:var(--step-12);
  letter-spacing:.16em;
  color:rgba(251,246,236,.5);
}
.footer-contact__value{
  display:block;
  margin-top:8px;
  font-size:var(--step-16);
  line-height:1.6;
  color:var(--ivory);
  overflow-wrap:anywhere;
}
.footer-contact__note{
  display:block;
  margin-top:10px;
  font-size:var(--step-14);
  line-height:1.85;
  color:rgba(251,246,236,.6);
}

.site-footer__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:22px;
  border-top:1px solid rgba(251,246,236,.16);
}
.footer-meta{
  font-family:var(--font-mono);
  font-size:var(--step-12);
  letter-spacing:.1em;
  color:rgba(251,246,236,.6);
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1100px){
  .site-footer__top{grid-template-columns:minmax(0,1fr) minmax(0,1.6fr)}
}

@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .site-header__brand{gap:0}
  .brand__tagline{display:none}

  .site-nav{
    position:absolute;
    left:0;right:0;top:100%;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:4px var(--gutter) 26px;
    background:var(--paper);
    border-bottom:1px solid var(--rule);
    box-shadow:0 36px 44px -36px rgba(23,21,15,.8);
    opacity:0;
    visibility:hidden;
    transform:translateY(-12px);
    transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease);
  }
  .site-nav[data-open]{opacity:1;visibility:visible;transform:translateY(0)}

  .site-nav__list{flex-direction:column;align-items:stretch;gap:0;width:100%}
  .site-nav__item{display:block;border-bottom:1px dashed var(--rule)}
  .site-nav__link{
    display:block;
    padding:16px 4px;
    font-family:var(--font-display);
    font-size:var(--step-20);
    font-weight:700;
    letter-spacing:.02em;
  }
  .site-nav__link::after{display:none}
  .site-nav__cta{margin-top:20px;width:100%;padding:15px 22px;font-size:var(--step-16)}

  .site-footer__top{grid-template-columns:minmax(0,1fr)}
  .site-footer__cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-footer__curve{width:190%;height:56px}
}

@media (max-width:620px){
  .filter-bar{border-radius:var(--radius-lg);padding:12px}
  .filter-count{margin-left:0;padding-right:0}
  .site-footer__cols{grid-template-columns:minmax(0,1fr);gap:26px}
  .site-footer__bottom{flex-direction:column;align-items:flex-start}
  .accordion__trigger{padding:16px 18px;font-size:var(--step-20)}
  .accordion__panel{padding:0 18px 20px}
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .js-reveal [data-reveal]{opacity:1;transform:none}
  .card:hover,.btn:hover,.tag:hover,.filter-btn:hover,.footer-col__link:hover{transform:none}
}