/* ============================================================
   奥科客户中心 · 分子生物学 SMS2 汉化版 · 统一样式
   在保留 SMS2 原始脚本与计算逻辑的前提下，重写外观：
   持久导航外壳、工具卡片、放大字号、内嵌结果窗口。
   仅覆盖样式，不改变任何计算行为。
   ============================================================ */

:root {
  --sms-brand: #3574b8;
  --sms-brand-strong: #245a97;
  --sms-brand-soft: #4a90d9;
  --sms-ink: #334155;
  --sms-muted: #64748b;
  --sms-line: #e3eaf2;
  --sms-bg: #f5f8fc;
  --sms-panel: #ffffff;
  --sms-radius: 14px;
  --sms-shadow: 0 10px 30px rgba(60, 90, 130, 0.08);
}

* { box-sizing: border-box; }

html { background: var(--sms-bg); }

body.main {
  margin: 0;
  padding: 24px 26px 32px;
  color: var(--sms-ink);
  background: var(--sms-bg);
  font-family: "IBM Plex Sans", Inter, "PingFang SC", "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.7;
}

a { color: var(--sms-brand); }

/* ============================================================
   外壳（index.html）：顶部标题 + 左侧持久导航 + 右侧内容 iframe
   ============================================================ */

body.main.sms2-shell {
  padding: 0;
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background:
    linear-gradient(135deg, rgba(74, 144, 217, 0.07), transparent 45%),
    var(--sms-bg);
}

.sms2-topbar {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: 16px 24px;
  background: #ffffff;
  border-bottom: 1px solid var(--sms-line);
  box-shadow: 0 2px 12px rgba(60, 90, 130, 0.05);
}

.sms2-title { display: flex; flex-direction: column; }
.sms2-title h1 {
  margin: 0;
  color: var(--sms-brand-strong);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.01em;
}
.sms2-title p {
  margin: 2px 0 0;
  color: var(--sms-muted);
  font-size: 13px;
}

.sms2-topbar-tools { display: flex; align-items: center; gap: 12px; }

.sms2-search {
  min-height: 38px;
  width: 240px;
  padding: 7px 14px;
  color: var(--sms-ink);
  background: #f7fafd;
  border: 1px solid #d7e2ee;
  border-radius: 10px;
  font-size: 14px;
}
.sms2-search:focus {
  outline: none;
  border-color: var(--sms-brand-soft);
  box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.16);
  background: #ffffff;
}

.sms2-body { flex: 1 1 auto; display: flex; min-height: 0; }

.sms2-nav {
  flex: 0 0 268px;
  min-width: 240px;
  padding: 16px 14px 28px;
  overflow-y: auto;
  background: #ffffff;
  border-right: 1px solid var(--sms-line);
}

.sms2-nav-cat { margin-bottom: 16px; }
.sms2-nav-cat > h3 {
  margin: 0 0 8px;
  padding: 0 8px 6px;
  color: var(--sms-brand);
  border-bottom: 1px solid var(--sms-line);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.sms2-nav-list { display: flex; flex-direction: column; gap: 2px; }

.sms2-nav-link {
  display: block;
  padding: 7px 10px;
  color: #445566;
  border-radius: 8px;
  font-size: 14px;
  text-decoration: none;
  transition: background 0.14s ease, color 0.14s ease;
}
.sms2-nav-link:hover { color: var(--sms-brand-strong); background: #f1f6fc; }
.sms2-nav-link.active {
  color: #ffffff;
  background: linear-gradient(135deg, #4a90d9, #3574b8);
  font-weight: 700;
}
.sms2-nav-cat.empty { display: none; }

.sms2-content {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  background: var(--sms-bg);
}
.sms2-frame {
  flex: 1 1 auto;
  width: 100%;
  height: 100%;
  border: 0;
  background: var(--sms-bg);
}

/* ============================================================
   工具页
   ============================================================ */

body.main > table {
  width: 100%;
  border-spacing: 0;
  border-collapse: separate;
}

td.program {
  vertical-align: top;
  color: var(--sms-ink);
  font-family: inherit;
}

td.program > table {
  width: 100%;
  border-spacing: 0;
  border-collapse: separate;
  background: var(--sms-panel);
  border: 1px solid var(--sms-line);
  border-radius: var(--sms-radius);
  box-shadow: var(--sms-shadow);
  overflow: hidden;
}

td.program > table > tbody > tr > td { padding: 12px 30px; }

td.sms {
  padding-top: 26px !important;
  color: var(--sms-brand);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

td.title {
  padding-bottom: 6px !important;
  color: #1f2d3d;
  font-size: 26px;
  font-weight: 800;
  line-height: 1.3;
}

.tool-desc {
  max-width: 900px;
  margin: 6px 0 0;
  color: var(--sms-muted);
  font-size: 14.5px;
  font-weight: 400;
  line-height: 1.75;
}

/* 示例数据工具条 */
.tool-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 16px 0 18px;
  padding: 10px 14px;
  background: #f3f8fd;
  border: 1px dashed #cfe0f2;
  border-radius: 10px;
}
.sample-btn {
  min-height: 34px;
  padding: 0 16px;
  color: #ffffff;
  background: linear-gradient(135deg, #4a90d9, #3574b8);
  border: 1px solid #3574b8;
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.14s ease;
}
.sample-btn:hover { filter: brightness(1.06); }
.sample-hint { color: var(--sms-muted); font-size: 13px; }

td.description {
  padding-bottom: 26px !important;
  color: var(--sms-ink);
  font-family: inherit;
  font-size: 14.5px;
  line-height: 1.8;
}
td.description a { color: var(--sms-brand); text-decoration: none; }
td.description a:hover { text-decoration: underline; }

/* 表单控件 */
textarea {
  width: 100%;
  max-width: 100%;
  min-height: 150px;
  padding: 13px 15px;
  color: var(--sms-ink);
  background: #fbfdff;
  border: 1px solid #d7e2ee;
  border-radius: 10px;
  font-family: "DejaVu Sans Mono", "SFMono-Regular", Consolas, "Courier New", monospace;
  font-size: 13.5px;
  line-height: 1.65;
}
textarea:focus {
  outline: none;
  border-color: var(--sms-brand-soft);
  box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.15);
  background: #ffffff;
}

input[type="text"],
input[type="number"],
input[type="password"],
input[type="search"] {
  min-height: 36px;
  padding: 6px 12px;
  color: var(--sms-ink);
  background: #fbfdff;
  border: 1px solid #d7e2ee;
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
}
input[type="text"]:focus,
input[type="number"]:focus,
input[type="password"]:focus {
  outline: none;
  border-color: var(--sms-brand-soft);
  box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.15);
}

select {
  min-height: 36px;
  padding: 5px 12px;
  color: var(--sms-ink);
  background: #fbfdff;
  border: 1px solid #d7e2ee;
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
}
select:focus {
  outline: none;
  border-color: var(--sms-brand-soft);
  box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.15);
}

input[type="button"],
input[type="submit"],
input[type="reset"] {
  min-height: 38px;
  margin: 8px 10px 8px 0;
  padding: 0 20px;
  color: #ffffff;
  background: var(--sms-brand);
  border: 1px solid var(--sms-brand);
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.14s ease, border-color 0.14s ease;
}
input[type="button"]:hover,
input[type="submit"]:hover { background: #2b5f9b; border-color: #2b5f9b; }
input[type="reset"] {
  color: var(--sms-brand);
  background: #ffffff;
  border-color: #cfe0f2;
}
input[type="reset"]:hover { color: #1f5a9c; background: #f3f8fd; }
input[type="radio"],
input[type="checkbox"] { accent-color: var(--sms-brand); }

ul { padding-left: 22px; }
li { margin: 4px 0; }

/* 内嵌结果窗口 */
iframe.sms-output-frame {
  display: none;
  width: 100%;
  min-height: 360px;
  margin-top: 20px;
  border: 1px solid var(--sms-line);
  border-radius: 10px;
  background: #ffffff;
}

/* 搜索无结果 */
.sms2-nav-empty {
  display: none;
  padding: 20px 10px;
  color: var(--sms-muted);
  font-size: 14px;
  text-align: center;
}

/* ============================================================
   欢迎页（welcome.html）
   ============================================================ */

.welcome-wrap { max-width: 1080px; margin: 0 auto; padding: 26px 24px 40px; }
.welcome-hero {
  padding: 26px 28px;
  background: #ffffff;
  border: 1px solid var(--sms-line);
  border-radius: var(--sms-radius);
  box-shadow: var(--sms-shadow);
}
.welcome-hero h1 { margin: 0 0 6px; color: var(--sms-brand-strong); font-size: 24px; }
.welcome-hero p { margin: 0; color: var(--sms-muted); font-size: 14.5px; }
.welcome-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
  margin-top: 20px;
}
.welcome-card {
  display: block;
  padding: 14px 16px;
  background: #ffffff;
  border: 1px solid var(--sms-line);
  border-radius: 12px;
  text-decoration: none;
  transition: border-color 0.14s ease, box-shadow 0.14s ease, transform 0.14s ease;
}
.welcome-card:hover {
  border-color: #bdd6ee;
  box-shadow: 0 10px 24px rgba(60, 90, 130, 0.1);
  transform: translateY(-1px);
}
.welcome-card strong { display: block; color: var(--sms-brand-strong); font-size: 14.5px; }
.welcome-card span { display: block; margin-top: 3px; color: var(--sms-muted); font-size: 12.5px; line-height: 1.55; }
.welcome-foot { margin-top: 24px; text-align: center; color: var(--sms-muted); font-size: 13.5px; }
.welcome-foot a { color: var(--sms-brand-strong); }
.welcome-sep { margin: 0 8px; color: var(--sms-line); }

/* ---- 关于 SMS2 ---- */
.about-wrap { max-width: 900px; margin: 0 auto; padding: 26px 24px 44px; }
.about-card {
  padding: 30px 34px;
  background: #ffffff;
  border: 1px solid var(--sms-line);
  border-radius: var(--sms-radius);
  box-shadow: var(--sms-shadow);
  line-height: 1.85;
  color: var(--sms-text);
  font-size: 14.5px;
}
.about-card h1 {
  margin: 0 0 12px;
  color: var(--sms-brand-strong);
  font-size: 25px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--sms-line);
}
.about-card h2 {
  margin: 26px 0 8px;
  color: var(--sms-brand-strong);
  font-size: 17px;
  padding-left: 11px;
  border-left: 4px solid var(--sms-brand);
}
.about-card p { margin: 8px 0; }
.about-lead { color: var(--sms-muted); font-size: 15px; }
.about-card a { color: var(--sms-brand-strong); }
.about-cite {
  margin: 12px 0;
  padding: 14px 18px;
  background: #f6f9fc;
  border-left: 4px solid var(--sms-brand);
  border-radius: 0 8px 8px 0;
  color: var(--sms-text);
}
.about-foot { margin-top: 26px; padding-top: 14px; border-top: 1px solid var(--sms-line); }

/* ============================================================
   窄屏适配
   ============================================================ */
@media (max-width: 820px) {
  .sms2-body { flex-direction: column; }
  .sms2-nav { flex: 0 0 auto; max-height: 240px; border-right: 0; border-bottom: 1px solid var(--sms-line); }
  .sms2-search { width: 100%; }
  body.main { padding: 16px; }
  td.program > table > tbody > tr > td { padding: 10px 18px; }
}