:root {
  color-scheme: light;
  --ink: #2d261f;
  --ink-soft: #65584b;
  --paper: #f2e7cc;
  --paper-light: #fffaf0;
  --cinnabar: #9a3f30;
  --green: #546b54;
  --ochre: #a66b2c;
  --line: rgba(77, 57, 39, 0.2);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 8%, rgba(154,63,48,.11), transparent 25rem),
    radial-gradient(circle at 92% 72%, rgba(84,107,84,.1), transparent 30rem),
    linear-gradient(145deg,#fffdf8,var(--paper));
  font-family:
    "Noto Sans SC",
    "Microsoft YaHei",
    "PingFang SC",
    sans-serif;
}

.home {
  width:min(1160px,calc(100% - 48px));
  margin:0 auto;
  padding:72px 0 88px;
}

.hero {
  min-height:420px;
  margin-bottom:72px;
  display:grid;
  grid-template-columns:minmax(0,1fr) 270px;
  align-items:center;
  gap:64px;
}

.hero-copy {
  max-width:760px;
}

.eyebrow {
  margin:0 0 20px;
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--cinnabar);
  font-size:.9rem;
  font-weight:700;
  letter-spacing:.16em;
}

.eyebrow span {
  width:26px;
  height:2px;
  background:currentColor;
}

h1 {
  margin:0;
  font-family:
    "Noto Serif SC",
    "Songti SC",
    SimSun,
    serif;
  font-size:clamp(3rem,6.4vw,5.6rem);
  line-height:1.08;
  letter-spacing:-.045em;
}

.subtitle {
  margin:26px 0 0;
  color:var(--cinnabar);
  font-family:
    "Noto Serif SC",
    "Songti SC",
    SimSun,
    serif;
  font-size:clamp(1.3rem,2.4vw,1.8rem);
  font-weight:700;
}

.intro {
  max-width:600px;
  margin:18px 0 0;
  color:var(--ink-soft);
  font-size:1rem;
  line-height:1.9;
}

.build-note {
  position:relative;
  min-height:280px;
  padding:36px 30px 30px;
  overflow:hidden;
  border:1px solid rgba(154,63,48,.24);
  border-radius:48% 46% 45% 42% / 44% 50% 42% 48%;
  background:rgba(255,250,240,.68);
  box-shadow:0 24px 60px rgba(83,58,31,.11);
  text-align:center;
  transform:rotate(1.5deg);
}

.build-note::after {
  content:"";
  position:absolute;
  inset:12px;
  border:1px dashed rgba(154,63,48,.2);
  border-radius:inherit;
}

.build-note > * {
  position:relative;
  z-index:1;
}

.build-note__mark {
  width:82px;
  height:82px;
  margin:0 auto 22px;
  display:grid;
  place-items:center;
  color:var(--paper-light);
  border-radius:50% 44% 48% 40%;
  background:var(--cinnabar);
  font-family:
    "Noto Serif SC",
    "Songti SC",
    SimSun,
    serif;
  font-size:2rem;
  font-weight:700;
}
.build-note__label,
.build-note__status,
.build-note__version {
  margin:0;
}

.build-note__label {
  color:var(--ink-soft);
  font-size:.78rem;
  letter-spacing:.14em;
}

.build-note__status {
  margin-top:8px;
  font-weight:800;
}

.build-note__version {
  margin-top:10px;
  color:var(--ink-soft);
  font-size:.82rem;
}


.section-heading {
  margin-bottom:26px;
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:24px;
}

.section-kicker {
  margin:0 0 8px;
  color:var(--cinnabar);
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.14em;
}

.section-heading h2 {
  margin:0;
  font-family:
    "Noto Serif SC",
    "Songti SC",
    SimSun,
    serif;
  font-size:clamp(1.75rem,3vw,2.45rem);
}

.section-note {
  margin:0 0 3px;
  color:var(--ink-soft);
  font-size:.88rem;
}


.entries {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}


.entry-card {
  --accent:var(--ochre);

  min-height:248px;
  padding:22px;

  display:flex;
  flex-direction:column;
  justify-content:space-between;

  border:1px solid var(--line);
  border-top:5px solid var(--accent);
  border-radius:8px 8px 22px 8px;

  background:rgba(255,252,244,.82);
  box-shadow:
    0 14px 36px rgba(75,50,29,.07);
}


.entry-card--green {
  --accent:var(--green);
}


.entry-card--red {
  --accent:var(--cinnabar);
}


.entry-card--ink {
  --accent:#49423b;
}


.card-top {

  width:100%;

  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;

}


.card-number {

  color:var(--accent);

  font-family:Georgia,serif;

  font-size:1.05rem;

  font-weight:700;

}


.status {

  padding:6px 11px;

  color:var(--accent);

  border:
    1px solid
    color-mix(
      in srgb,
      var(--accent) 34%,
      transparent
    );

  border-radius:999px;

  background:
    color-mix(
      in srgb,
      var(--accent) 7%,
      transparent
    );

  font-size:.82rem;

  font-weight:700;

  line-height:1.2;

}


.entry-card h3 {

  margin:0;

  font-family:
    "Noto Serif SC",
    "Songti SC",
    SimSun,
    serif;

  font-size:1.45rem;

}


.entry-card p {

  margin:12px 0 0;

  color:var(--ink-soft);

  font-size:.9rem;

  line-height:1.75;

}


/* ===============================
   响应式布局
   =============================== */


@media(max-width:800px){

  .home {

    padding:56px 0 72px;

  }


  .hero {

    min-height:auto;

    margin-bottom:64px;

    grid-template-columns:1fr;

    gap:36px;

  }


  .build-note {

    min-height:auto;

    padding:22px 26px;

    display:grid;

    grid-template-columns:58px 1fr;

    grid-template-areas:

      "mark label"

      "mark status"

      "mark version";

    column-gap:18px;

    text-align:left;

  }


  .build-note__mark {

    grid-area:mark;

    width:58px;

    height:58px;

    margin:0;

    font-size:1.4rem;

  }


  .build-note__label {

    grid-area:label;

  }


  .build-note__status {

    grid-area:status;

  }


  .build-note__version {

    grid-area:version;

  }


  .section-heading {

    align-items:start;

    flex-direction:column;

    gap:12px;

  }


  .entries {

    grid-template-columns:repeat(2,1fr);

  }

}


@media(max-width:480px){

  .home {

    width:min(100% - 28px,1160px);

    padding:48px 0;

  }


  .hero {

    margin-bottom:52px;

  }


  .title-break {

    display:none;

  }


  h1 {

    font-size:
      clamp(2.45rem,13vw,3.4rem);

  }


  .entries {

    grid-template-columns:1fr;

  }


  .entry-card {

    min-height:190px;

  }

}
/* ===============================
   Step25-G3-B2 返回链
   =============================== */


.breadcrumb {

  display:flex;

  align-items:center;

  flex-wrap:wrap;

  gap:8px;

  margin-bottom:36px;

  color:var(--ink-soft);

  font-size:.88rem;

}


.breadcrumb a {

  color:var(--ink-soft);

  text-decoration:none;

}


.breadcrumb a:hover {

  color:var(--cinnabar);

}


.breadcrumb strong {

  color:var(--ink);

}



/* 返回区域 */


.return-panel {

  margin-top:72px;

  padding:36px 32px;


  border-top:1px solid var(--line);


  background:

    rgba(255,250,240,.55);


  border-radius:24px;


}



.return-panel h3 {

  margin:0;


  font-family:

    "Noto Serif SC",

    "Songti SC",

    SimSun,

    serif;


  font-size:1.5rem;


}



.return-panel p {

  margin:14px 0 24px;


  color:var(--ink-soft);


  line-height:1.8;


}



.return-links {

  display:flex;


  flex-wrap:wrap;


  gap:14px;


}



.return-links a {


  padding:10px 18px;


  border:1px solid var(--line);


  border-radius:999px;


  background:#fffaf0;


  color:var(--ink);


  text-decoration:none;


  font-size:.9rem;


}



.return-links a:hover {


  color:var(--cinnabar);


  border-color:var(--cinnabar);


}



@media(max-width:480px){


  .breadcrumb {


    margin-bottom:24px;


    font-size:.82rem;


  }



  .return-panel {


    padding:26px 20px;


  }



  .return-links {


    flex-direction:column;


  }



  .return-links a {


    text-align:center;


  }


}/* =====================================================
   Step29-E｜儿童甲骨文字展品模板 V1.0
   用于：
   /oracle-bone/characters/ren/
   /oracle-bone/characters/ri/

   仅追加，不影响旧样式
===================================================== */


/* ---------- 展品页整体 ---------- */

.ob-exhibit-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}


/* ---------- 面包屑 ---------- */

.ob-breadcrumb {
  font-size: 14px;
  color: #8a7562;
  margin-bottom: 28px;
}

.ob-breadcrumb a {
  color: #8a7562;
  text-decoration: none;
}

.ob-breadcrumb span {
  margin: 0 8px;
}


/* ---------- 首屏展柜 ---------- */

.ob-hero-card {

  background:
    linear-gradient(
      135deg,
      rgba(255,250,240,.96),
      rgba(250,242,224,.96)
    );

  border:1px solid #ead8bb;

  border-radius:28px;

  padding:48px;

  display:grid;

  grid-template-columns:
  1.2fr .8fr;

  gap:40px;

  box-shadow:
  0 18px 45px rgba(90,60,30,.08);

}


.ob-title {

  font-family:
  "Noto Serif SC",
  serif;

  font-size:58px;

  line-height:1.15;

  color:#24170f;

  margin:0 0 18px;

}


.ob-subtitle {

  font-size:24px;

  line-height:1.7;

  color:#9b4432;

  margin-bottom:22px;

}


.ob-description {

  font-size:18px;

  line-height:1.9;

  color:#5f5146;

}



/* ---------- 基础信息 ---------- */

.ob-meta {

  display:flex;

  flex-wrap:wrap;

  gap:14px;

  margin-top:30px;

}


.ob-meta-item {

  background:#fff;

  border:1px solid #ead8bb;

  border-radius:16px;

  padding:14px 18px;

  min-width:90px;

  text-align:center;

}


.ob-meta-label {

  font-size:13px;

  color:#98785a;

}


.ob-meta-value {

  margin-top:6px;

  font-size:18px;

  color:#362319;

}



/* ---------- 右侧引导 ---------- */

.ob-guide {

  display:flex;

  align-items:center;

  justify-content:center;

}


.ob-guide-box {

  background:#fff;

  border-radius:24px;

  padding:36px;

  border:1px solid #ead8bb;

  text-align:center;

}


.ob-guide-title {

  font-size:20px;

  color:#9b4432;

  margin-bottom:20px;

}


.ob-guide-text {

  font-size:22px;

  line-height:1.8;

  color:#302219;

}



/* ---------- 内容模块 ---------- */


.ob-section {

  margin-top:42px;

}


.ob-section h2 {

  border-left:

  6px solid #a64b38;

  padding-left:14px;

  font-size:32px;

  color:#2c2118;

}



.ob-panel {

  background:#fffdf8;

  border:1px solid #ead8bb;

  border-radius:22px;

  padding:32px;

  margin-top:18px;

  line-height:1.9;

  color:#514338;

  font-size:18px;

}



/* ---------- 观察区域 ---------- */


.ob-look-box {

  min-height:260px;

  display:flex;

  flex-direction:column;

  justify-content:center;

  align-items:center;

  background:#fffaf0;

  border:2px dashed #d7b990;

}


.ob-look-placeholder {

  font-size:22px;

  color:#a07b55;

}



/* ---------- 字形变化 ---------- */


.ob-evolution {

  display:grid;

  grid-template-columns:
  repeat(4,1fr);

  gap:18px;

}


.ob-evolution-card {

  background:white;

  border:1px solid #ead8bb;

  border-radius:18px;

  padding:22px;

}


.ob-evolution-card strong {

  display:block;

  color:#a64b38;

  margin-bottom:10px;

}



/* ---------- 儿童任务 ---------- */


.ob-task {

  display:grid;

  grid-template-columns:
  repeat(3,1fr);

  gap:20px;

}


.ob-task-card {

  background:#fff;

  border-radius:20px;

  padding:24px;

  border:1px solid #ead8bb;

}


.ob-task-card h3 {

  color:#a64b38;

}



/* ---------- 家庭共学 ---------- */


.ob-family {

  background:
  linear-gradient(
  135deg,
  #fff7df,
  #fffdf8
  );

}



/* ---------- 返回按钮 ---------- */


.ob-return {

  margin-top:50px;

  text-align:center;

}


.ob-return a {

  display:inline-block;

  padding:12px 22px;

  margin:8px;

  border-radius:999px;

  border:1px solid #d9c19b;

  background:#fff;

  color:#49372b;

  text-decoration:none;

}


.ob-return a:hover {

  background:#f7ead1;

}



/* ---------- 首页字卡 ---------- */


.ob-character-grid {

  display:grid;

  grid-template-columns:
  repeat(2,1fr);

  gap:24px;

}


.ob-character-card {

  background:#fffaf0;

  border:1px solid #ead8bb;

  border-radius:24px;

  padding:28px;

}


.ob-character-card h3 {

  font-size:30px;

  margin-bottom:12px;

}


.ob-character-card .number {

  color:#a64b38;

  font-size:14px;

}


.ob-character-card a {

  display:inline-block;

  margin-top:18px;

  padding:12px 20px;

  border-radius:999px;

  background:#516f91;

  color:white;

  text-decoration:none;

}



/* ---------- 移动端 ---------- */


@media(max-width:768px){

.ob-hero-card{

grid-template-columns:1fr;

padding:28px;

}


.ob-title{

font-size:42px;

}


.ob-evolution{

grid-template-columns:1fr 1fr;

}


.ob-task{

grid-template-columns:1fr;

}


.ob-character-grid{

grid-template-columns:1fr;

}

}