:root {
    --green-dark: #1B4D3E;
    --green-mid: #2D6A4F;
    --green-light: #52B788;
    --green-mint: #95D5B2;
    --green-pale: #D8F3DC;
    --green-bg: #F1F8F4;
    --bg-white: #F8FFF8;
    --gold: #B8860B;
    --white: #FFFFFF;
    --gray-dark: #333333;
    --gray-mid: #555555;
    --border: #C8E6C9;
  }
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-white);
    color: var(--green-dark);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
  }
a { color: inherit; text-decoration: none; }
.logo-en {
    font-size: 18px;
    font-weight: 900;
    letter-spacing: 3px;
    color: var(--green-dark);
  }
.logo-cn {
    margin-top: 3px;
    font-size: 10px;
    color: var(--green-light);
    letter-spacing: 4px;
    font-weight: 400;
  }
.hero {
    min-height: 78vh;
    padding: 140px 48px 64px;
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
    gap: 56px;
    align-items: center;
    background:
      linear-gradient(120deg, rgba(216, 243, 220, 0.9), rgba(248, 255, 248, 0.72)),
      url('/wp-content/themes/supersyn/assets/img/science-hero-desktop.jpg') center / cover no-repeat;
  }
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 28px;
    color: var(--gold);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 4px;
  }
.eyebrow::before {
    content: "";
    width: 42px;
    height: 1px;
    background: var(--gold);
  }
h1 {
    max-width: 760px;
    color: var(--green-dark);
    font-size: clamp(48px, 7vw, 88px);
    line-height: 1.04;
    font-weight: 900;
    letter-spacing: 0;
  }
.hero-copy {
    max-width: 680px;
    margin-top: 30px;
    color: var(--gray-mid);
    font-size: 18px;
    line-height: 2;
  }
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 38px;
  }
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 22px;
    border-radius: 999px;
    border: 1px solid var(--green-mid);
    background: var(--green-dark);
    color: var(--white);
    font-weight: 700;
  }
.button.secondary {
    background: transparent;
    color: var(--green-dark);
  }
.science-map {
    min-height: 420px;
    border: 1px solid rgba(82, 183, 136, 0.28);
    background: rgba(255, 255, 255, 0.5);
    border-radius: 8px;
    padding: 28px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
.map-card {
    min-height: 160px;
    padding: 24px;
    border: 1px solid rgba(82, 183, 136, 0.24);
    background: rgba(255, 255, 255, 0.68);
    border-radius: 8px;
  }
.map-index {
    display: inline-flex;
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    border-radius: 50%;
    background: var(--green-pale);
    color: var(--green-dark);
    font-weight: 900;
  }
.map-index img {
    width: 24px;
    height: 24px;
    display: block;
  }
.map-card h2 {
    margin-bottom: 10px;
    font-size: 20px;
    letter-spacing: 1px;
  }
.map-card p {
    color: var(--gray-mid);
    line-height: 1.8;
    font-size: 14px;
  }
section {
    padding: 96px 48px;
  }
.section-inner {
    max-width: 1180px;
    margin: 0 auto;
  }
.section-kicker {
    margin-bottom: 18px;
    color: var(--gold);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 4px;
  }
.section-title {
    max-width: 760px;
    margin-bottom: 18px;
    font-size: clamp(32px, 4vw, 54px);
    line-height: 1.15;
    font-weight: 900;
    letter-spacing: 0;
  }
.section-desc {
    max-width: 740px;
    color: var(--gray-mid);
    font-size: 17px;
    line-height: 1.9;
  }
.topic-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-top: 42px;
  }
.topic-card {
    padding: 28px;
    min-height: 210px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--white);
  }
.topic-card strong {
    display: block;
    margin-bottom: 14px;
    font-size: 18px;
  }
.topic-card p {
    color: var(--gray-mid);
    font-size: 14px;
    line-height: 1.85;
  }
.library {
    background: var(--green-bg);
  }
.article-list {
    display: grid;
    gap: 16px;
    margin-top: 42px;
  }
.article-card {
    display: grid;
    grid-template-columns: 150px minmax(0, 1fr) auto;
    gap: 28px;
    align-items: center;
    padding: 26px 30px;
    border: 1px solid rgba(82, 183, 136, 0.22);
    border-radius: 8px;
    background: var(--white);
    color: inherit;
    text-decoration: none;
    transition: transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
  }
.article-card.with-cover {
    grid-template-columns: 150px 168px minmax(0, 1fr) auto;
  }
.article-cover-thumb {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid rgba(82, 183, 136, 0.18);
  }
.article-card:hover {
    transform: translateY(-3px);
    border-color: rgba(82, 183, 136, 0.42);
    box-shadow: 0 18px 44px rgba(27, 77, 62, 0.08);
  }
.article-type {
    display: inline-flex;
    width: fit-content;
    padding: 8px 12px;
    border-radius: 999px;
    background: var(--green-pale);
    color: var(--green-dark);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
  }
.article-card h3 {
    margin-bottom: 10px;
    font-size: 22px;
    line-height: 1.35;
  }
.article-card p {
    max-width: 680px;
    color: var(--gray-mid);
    line-height: 1.8;
    font-size: 14px;
  }
.article-meta {
    color: var(--green-mid);
    font-size: 13px;
    white-space: nowrap;
  }
.reader-guide {
    margin-top: 54px;
    padding: 30px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--white);
    scroll-margin-top: 92px;
  }
.reader-guide h3 { margin-bottom: 12px; font-size: 26px; line-height: 1.4; }
.reader-guide-intro { color: var(--gray-mid); font-size: 14px; line-height: 1.8; }
.reader-topic-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 28px;
    margin-top: 12px;
    list-style: none;
  }
.reader-topic {
    min-width: 0;
    padding: 22px 0;
    border-bottom: 1px solid var(--border);
  }
.reader-topic:last-child { grid-column: 1 / -1; border-bottom: 0; padding-bottom: 0; }
.reader-topic h4 { margin-bottom: 9px; font-size: 15px; color: var(--green-mid); }
.reader-topic a {
    color: var(--green-dark);
    text-decoration: underline;
    text-decoration-color: rgba(82, 183, 136, 0.45);
    text-underline-offset: 4px;
  }
.reader-topic a:hover { text-decoration-color: var(--green-dark); }
.reader-topic a:focus-visible { outline: 2px solid var(--green-mid); outline-offset: 4px; }
.reader-question { display: block; font-size: 16px; line-height: 1.8; font-weight: 500; }
.reader-related { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 10px; font-size: 13px; line-height: 1.8; }
@media (max-width: 600px) {
.reader-guide { padding: 22px; margin-top: 34px; scroll-margin-top: 80px; }
.reader-guide h3 { font-size: 22px; }
.reader-topic-list { grid-template-columns: 1fr; }
.reader-topic { padding: 18px 0; }

}
.editorial {
    display: grid;
    grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
    gap: 54px;
    align-items: start;
  }
.rule-list {
    display: grid;
    gap: 16px;
  }
.rule {
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
  }
.rule strong {
    display: block;
    margin-bottom: 10px;
    font-size: 20px;
  }
.rule p {
    color: var(--gray-mid);
    line-height: 1.8;
  }
@media (max-width: 960px) {
.hero {
      grid-template-columns: 1fr;
      padding: 124px 24px 56px;
      background:
        linear-gradient(180deg, rgba(216, 243, 220, 0.92), rgba(248, 255, 248, 0.74)),
        url('/wp-content/themes/supersyn/assets/img/science-hero-mobile.jpg') center / cover no-repeat;
    }
section { padding: 72px 24px; }
.topic-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.article-card, .article-card.with-cover { grid-template-columns: 1fr; }
.editorial { grid-template-columns: 1fr; }

}
@media (max-width: 960px) {
.logo-en {
      font-size: 16px;
      letter-spacing: 2px;
    }
.logo-cn {
      margin-top: 4px;
      font-size: 10px;
      letter-spacing: 3px;
    }
.hero {
      min-height: auto;
      padding: 106px 20px 54px;
      gap: 34px;
    }
h1 {
      font-size: clamp(38px, 11vw, 48px);
      line-height: 1.1;
    }
.eyebrow {
      margin-bottom: 20px;
      font-size: 11px;
      letter-spacing: 3px;
    }
.hero-copy {
      margin-top: 22px;
      font-size: 15px;
      line-height: 1.85;
    }
.hero-actions {
      margin-top: 28px;
      display: grid;
      grid-template-columns: 1fr;
    }
.button {
      width: 100%;
      min-height: 48px;
    }
.science-map {
      min-height: auto;
      grid-template-columns: 1fr;
      padding: 16px;
      gap: 12px;
      border-radius: 8px;
    }
.map-card {
      min-height: auto;
      padding: 18px;
    }
section {
      padding: 62px 20px;
    }
.section-kicker {
      letter-spacing: 3px;
      margin-bottom: 14px;
    }
.section-title {
      font-size: 30px;
      line-height: 1.18;
    }
.section-desc {
      font-size: 15px;
      line-height: 1.85;
    }
.topic-grid { grid-template-columns: 1fr; }
.topic-card {
      min-height: auto;
      padding: 22px;
    }
.article-list {
      margin-top: 30px;
    }
.article-card {
      padding: 22px;
      gap: 16px;
    }
.article-card h3 {
      font-size: 20px;
      line-height: 1.4;
    }
.article-meta {
      white-space: normal;
    }
.editorial {
      gap: 26px;
    }
.rule {
      padding: 20px 0;
    }
.rule strong {
      font-size: 18px;
    }

}