/* ============================================
   yuSnip — Docs Page
   深邃蓝调 · 轻奢文档 · 与主页统一
   ============================================ */

.docs-body {
  background:
    /* 顶部：Hero 亮蓝 + 紫色光晕，与主页衔接 */
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(107, 77, 255, 0.22) 0%, transparent 60%),
    /* 顶部亮蓝渐变带，向下自然过渡到深色 */
    linear-gradient(180deg, #2A10A8 0%, #1A0B66 12%, #10074A 24%, #0C0538 36%, #0A0428 52%, #0A0428 100%),
    /* 底部微弱琥珀点缀 */
    radial-gradient(ellipse at 80% 95%, rgba(201, 169, 110, 0.04) 0%, transparent 50%);
  background-attachment: fixed;
  overflow-x: hidden;
}

/* ====== Top Nav ====== */
.docs-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 40px;
  background: rgba(42, 16, 168, 0.72);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(248, 242, 237, 0.1);
  gap: 24px;
}
.docs-nav__brand {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-en); font-size: 20px; font-weight: 600;
  color: var(--cream); flex-shrink: 0;
}
.docs-nav__brand svg { color: var(--cream); }
.docs-nav__brand em {
  font-family: var(--font-en); font-style: italic; font-size: 13px;
  font-weight: 400; color: var(--accent-2); letter-spacing: 0.05em;
  margin-left: 2px;
}

/* 搜索框 */
.docs-nav__search {
  flex: 1; max-width: 460px;
  display: flex; align-items: center; gap: 10px;
  background: rgba(248, 242, 237, 0.06);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 14px;
  transition: border-color 0.3s, background 0.3s;
}
.docs-nav__search:focus-within {
  border-color: rgba(107, 77, 255, 0.5);
  background: rgba(107, 77, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(107, 77, 255, 0.12);
}
.docs-nav__search svg { color: var(--cream-dim); flex-shrink: 0; }
.docs-nav__search input {
  flex: 1; background: none; border: none; outline: none;
  color: var(--cream); font-family: var(--font-sans); font-size: 14px;
  letter-spacing: 0.02em;
}
.docs-nav__search input::placeholder { color: var(--cream-dim); }
.docs-nav__search kbd {
  font-family: var(--font-sans); font-size: 11px;
  padding: 2px 7px;
  background: rgba(248, 242, 237, 0.1); border: 1px solid var(--line-strong);
  border-radius: 4px; color: var(--cream-dim);
  white-space: nowrap;
}

.docs-nav__back {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-sans); font-size: 14px; font-weight: 500;
  color: var(--cream-soft); opacity: 0.75;
  transition: opacity 0.3s; flex-shrink: 0;
}
.docs-nav__back:hover { opacity: 1; }

/* ====== Layout ====== */
.docs-layout {
  display: flex;
  align-items: flex-start;
  margin: 62px auto 0;
  max-width: 1280px;
  padding: 0 40px;
  min-height: calc(100vh - 62px);
}

/* ====== Sidebar ====== */
.docs-sidebar {
  position: sticky; top: 62px;
  width: 280px; flex-shrink: 0;
  height: calc(100vh - 62px);
  border-right: 1px solid var(--line);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}
.docs-sidebar::-webkit-scrollbar { width: 4px; }
.docs-sidebar::-webkit-scrollbar-track { background: transparent; }
.docs-sidebar::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 2px; }

.docs-sidebar__inner {
  padding: 36px 24px;
}

.docs-sidebar__label {
  font-family: var(--font-en); font-size: 11px; font-weight: 500;
  letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--cream-faint);
  margin-bottom: 24px;
  padding-left: 14px;
}

.docs-toc {
  display: flex; flex-direction: column; gap: 2px;
}
.docs-toc__item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px;
  border-radius: 6px;
  font-family: var(--font-sans); font-size: 14px; font-weight: 500;
  color: var(--cream-soft);
  transition: all 0.3s var(--ease);
  position: relative;
}
.docs-toc__item::before {
  content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 2px; height: 0; background: var(--blue-light);
  border-radius: 1px; transition: height 0.3s var(--ease), background 0.3s var(--ease);
}
.docs-toc__item:hover {
  background: rgba(248, 242, 237, 0.05);
  color: var(--cream);
}
.docs-toc__item:hover::before { height: 16px; background: var(--accent-2); }
.docs-toc__item.--active {
  background: rgba(107, 77, 255, 0.12);
  color: var(--cream);
}
.docs-toc__item.--active::before { height: 20px; background: var(--blue-light); }

.docs-toc__num {
  font-family: var(--font-en); font-size: 12px; font-weight: 400;
  color: var(--accent-2); opacity: 0.6; letter-spacing: 0.08em;
  flex-shrink: 0; width: 20px;
}
.docs-toc__item.--active .docs-toc__num { opacity: 1; }
.docs-toc__text { letter-spacing: 0.02em; }

/* 搜索结果 */
.docs-search-results {
  display: none;
  margin-top: 16px;
}
.docs-search-results.--show {
  display: block;
}
.docs-search-results__label {
  font-family: var(--font-en); font-size: 11px; font-weight: 500;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--cream-faint);
  margin-bottom: 16px; padding-left: 14px;
}
.docs-search-results__item {
  display: block;
  padding: 8px 14px;
  border-radius: 6px;
  font-family: var(--font-sans); font-size: 13px;
  color: var(--cream-soft);
  transition: all 0.2s;
  line-height: 1.5;
}
.docs-search-results__item:hover {
  background: rgba(248, 242, 237, 0.05);
  color: var(--cream);
}
.docs-search-results__item mark {
  background: rgba(201, 169, 110, 0.25);
  color: var(--accent-2); border-radius: 2px; padding: 0 2px;
}
.docs-search-results__item-context {
  display: block; font-size: 11px; color: var(--cream-dim);
  margin-top: 2px; line-height: 1.4;
}
.docs-search-results__empty {
  padding: 12px 14px;
  font-size: 13px; color: var(--cream-dim); font-style: italic;
}

/* ====== Content ====== */
.docs-content {
  flex: 1; min-width: 0;
  padding: 60px 60px 80px;
  max-width: 920px;
}

/* Section */
.doc-section {
  margin-bottom: 80px;
  scroll-margin-top: 80px;
}
.doc-section:last-of-type { margin-bottom: 40px; }

.doc-section__head {
  display: flex; align-items: baseline; gap: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}
.doc-section__num {
  font-family: var(--font-en); font-size: 56px; font-weight: 300;
  line-height: 1; color: var(--blue-light); opacity: 0.35;
  flex-shrink: 0;
}
.doc-section__title {
  font-family: var(--font-mincho); font-size: clamp(26px, 3vw, 36px);
  font-weight: 700; letter-spacing: 0.04em; color: var(--cream);
  line-height: 1.3;
}

.doc-section__body {
  font-size: 15px; line-height: 2; color: var(--cream-soft);
}
.doc-section__body p { margin-bottom: 16px; }
.doc-intro {
  font-family: var(--font-mincho); font-size: 16px;
  color: var(--cream) !important;
  padding-left: 16px; border-left: 2px solid var(--accent-2);
  margin-bottom: 32px !important;
}

/* Headings inside section */
.doc-h3 {
  font-family: var(--font-mincho); font-size: 19px; font-weight: 600;
  color: var(--cream); letter-spacing: 0.03em;
  margin: 36px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.doc-h3::before {
  content: ''; position: absolute; bottom: -1px; left: 0;
  width: 32px; height: 1px; background: var(--accent-2);
}

/* Lists */
.doc-list {
  list-style: none; margin-bottom: 16px; padding-left: 4px;
}
.doc-list li {
  padding-left: 18px; position: relative; margin-bottom: 6px;
  line-height: 1.9;
}
.doc-list li::before {
  content: '—'; position: absolute; left: 0; top: 0;
  color: var(--cream-faint); font-weight: 300;
}
.doc-list strong { color: var(--cream); font-weight: 600; }

.doc-olist {
  margin-bottom: 16px; padding-left: 22px;
}
.doc-olist li {
  margin-bottom: 6px; line-height: 1.9; color: var(--cream-soft);
}
.doc-olist li::marker {
  color: var(--accent-2); font-family: var(--font-en); font-weight: 500;
}

/* Tables */
.doc-table-wrap {
  margin: 16px 0 24px;
  overflow-x: auto;
  border-radius: 8px;
  border: 1px solid var(--line);
}
.doc-table {
  width: 100%; border-collapse: collapse;
  font-size: 14px;
}
.doc-table thead {
  background: rgba(248, 242, 237, 0.04);
}
.doc-table th {
  padding: 12px 16px;
  text-align: left; font-weight: 600; font-size: 13px;
  color: var(--cream); letter-spacing: 0.04em;
  border-bottom: 1px solid var(--line-strong);
  white-space: nowrap;
}
.doc-table td {
  padding: 11px 16px;
  color: var(--cream-soft);
  border-bottom: 1px solid var(--line);
  line-height: 1.6;
}
.doc-table tr:last-child td { border-bottom: none; }
.doc-table tr:hover td { background: rgba(248, 242, 237, 0.02); }
.doc-table code { font-size: 12px; }

/* Code blocks */
.doc-code {
  background: rgba(10, 4, 56, 0.6);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 16px 0 24px;
  overflow-x: auto;
  font-family: var(--font-mono); font-size: 13px; line-height: 1.7;
  color: var(--cream-soft);
}
.doc-code code { background: none; padding: 0; font-size: inherit; }

/* Blockquote */
.doc-quote {
  margin: 16px 0 24px;
  padding: 14px 18px;
  background: rgba(201, 169, 110, 0.06);
  border-left: 2px solid var(--accent-2);
  border-radius: 0 6px 6px 0;
  font-size: 14px; color: var(--cream-soft);
  font-style: italic;
}

/* FAQ items */
.doc-faq {
  margin-bottom: 28px;
  padding: 20px 24px;
  background: rgba(248, 242, 237, 0.03);
  border: 1px solid var(--line);
  border-radius: 10px;
  transition: border-color 0.3s;
}
.doc-faq:hover { border-color: var(--line-strong); }
.doc-faq .doc-h3 {
  margin-top: 0; border-bottom: 1px solid var(--line);
}
.doc-faq p, .doc-faq ol, .doc-faq ul { margin-bottom: 8px; }
.doc-faq p:last-child, .doc-faq ol:last-child, .doc-faq ul:last-child { margin-bottom: 0; }

/* Links in content */
.doc-section__body a {
  color: var(--accent-2); text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}
.doc-section__body a:hover { border-bottom-color: var(--accent-2); }

/* Highlighted search result */
.doc-section.--highlight {
  animation: docHighlight 2s var(--ease-out);
}
@keyframes docHighlight {
  0% { background: rgba(201, 169, 110, 0.12); }
  100% { background: transparent; }
}

/* Content footer */
.docs-content__footer {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 32px; margin-top: 20px;
  border-top: 1px solid var(--line);
}
.docs-back-home {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-sans); font-size: 14px; font-weight: 500;
  color: var(--cream-soft);
  transition: color 0.3s;
}
.docs-back-home:hover { color: var(--cream); }
.docs-copyright {
  font-family: var(--font-en); font-size: 12px;
  color: var(--cream-faint); letter-spacing: 0.08em;
}

/* ====== Responsive ====== */
@media (max-width: 1100px) {
  .docs-layout { padding: 0 24px; }
  .docs-content { padding: 50px 40px 60px; }
}
@media (max-width: 900px) {
  .docs-nav {
    padding: 12px 20px; gap: 12px;
    flex-wrap: wrap;
  }
  .docs-nav__search { order: 3; flex: 1 1 100%; max-width: none; }
  .docs-nav__back { display: none; }
  .docs-layout { flex-direction: column; margin-top: 92px; }
  .docs-sidebar {
    position: relative; top: 0; width: 100%; height: auto;
    border-right: none; border-bottom: 1px solid var(--line);
    max-height: 240px;
  }
  .docs-content { padding: 40px 24px 60px; }
  .doc-section__num { font-size: 36px; }
  .doc-section__title { font-size: 22px; }
  .doc-section__head { gap: 14px; }
  .docs-content__footer { flex-direction: column; gap: 16px; text-align: center; }
}
@media (max-width: 640px) {
  .docs-nav__brand em { display: none; }
  .docs-nav__search kbd { display: none; }
  .doc-table { font-size: 13px; }
  .doc-table th, .doc-table td { padding: 8px 10px; }
}