:root {
  --green: #07c160;
  --green-dark: #06ad56;
  --green-soft: rgba(7, 193, 96, 0.1);
  --blue: #3a7afe;
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #14181f;
  --text-2: #5b6470;
  --text-3: #8b949f;
  --line: #e8ebef;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 8px 24px rgba(16, 24, 40, 0.06);
  --radius: 16px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --card: #171b21;
    --text: #eef1f4;
    --text-2: #a8b1bc;
    --text-3: #7b8593;
    --line: #262c34;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.28);
    --green-soft: rgba(7, 193, 96, 0.14);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
code, .mono { font-family: ui-monospace, "SFMono-Regular", "JetBrains Mono", Consolas, monospace; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px max(16px, env(safe-area-inset-left)) 12px max(16px, env(safe-area-inset-right));
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
}

.topbar.is-scrolled { border-bottom-color: var(--line); }

.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }

.brand-mark {
  flex: none;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(140deg, #07c160, #04a04e);
  color: #fff;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.5px;
  box-shadow: 0 6px 14px rgba(7, 193, 96, 0.28);
}

.brand-text { display: flex; flex-direction: column; line-height: 1.2; min-width: 0; }
.brand-text strong { font-size: 16px; letter-spacing: 0.2px; }
.brand-text small { color: var(--text-3); font-size: 11px; margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.topnav { display: flex; gap: 4px; flex: none; }
.topnav a {
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--text-2);
  transition: background 0.15s ease, color 0.15s ease;
}
.topnav a:hover { background: var(--green-soft); color: var(--green-dark); }
.topnav a.active { background: var(--green); color: #fff; }

.lang-btn {
  flex: none;
  padding: 7px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text-2);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.4px;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.lang-btn:hover { border-color: var(--green); color: var(--green-dark); }

@media (max-width: 359px) {
  .brand-text small { display: none; }
  .topnav a { padding: 7px 9px; font-size: 12px; }
}

/* ---------- layout ---------- */
.view {
  flex: 1;
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 8px max(16px, env(safe-area-inset-left)) 32px max(16px, env(safe-area-inset-right));
}

.footer {
  margin-top: auto;
  padding: 20px 16px calc(24px + var(--safe-bottom));
  text-align: center;
  color: var(--text-3);
  font-size: 12px;
  border-top: 1px solid var(--line);
}
.footer p { margin: 2px 0; }
.muted { color: var(--text-3); }

/* ---------- hero / search ---------- */
.hero {
  position: relative;
  margin: 10px 0 18px;
  padding: 22px 20px 20px;
  border-radius: 22px;
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(7, 193, 96, 0.22), transparent 55%),
    linear-gradient(145deg, #0c1a12, #12261a 55%, #0d1b13);
  color: #f2fff7;
  overflow: hidden;
  box-shadow: var(--shadow);
}
@media (prefers-color-scheme: dark) {
  .hero { background: radial-gradient(120% 140% at 100% 0%, rgba(7, 193, 96, 0.28), transparent 55%), linear-gradient(145deg, #0a1410, #0e2016); }
}

.hero::after {
  content: "";
  position: absolute;
  right: -40px;
  top: -70px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 26px rgba(255, 255, 255, 0.03), 0 0 0 52px rgba(255, 255, 255, 0.02);
  pointer-events: none;
}

.hero h1 { margin: 0 0 6px; font-size: 22px; line-height: 1.35; letter-spacing: 0.3px; }
.hero p { margin: 0 0 16px; color: rgba(235, 255, 244, 0.72); font-size: 13px; }

.searchbox {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border-radius: 14px;
  padding: 6px 6px 6px 14px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.22);
}
.searchbox:focus-within { outline: 3px solid rgba(7, 193, 96, 0.35); }

.searchbox svg { flex: none; color: var(--text-3); }
.searchbox input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: #14181f;
  font-size: 16px;
  padding: 8px 0;
}
.searchbox input::placeholder { color: #9aa3ad; }

.searchbox button {
  flex: none;
  border: 0;
  border-radius: 10px;
  padding: 9px 16px;
  background: var(--green);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: transform 0.1s ease, background 0.15s ease;
}
.searchbox button:active { transform: scale(0.97); }
.searchbox button:hover { background: var(--green-dark); }

.quick {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.quick a {
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(240, 255, 246, 0.9);
  font-size: 12px;
}
.quick a:hover { background: rgba(255, 255, 255, 0.18); }

/* ---------- suggestions ---------- */
.suggest {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 8px);
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
  z-index: 30;
}
.suggest button {
  display: flex;
  width: 100%;
  gap: 10px;
  align-items: baseline;
  padding: 10px 14px;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
}
.suggest button:hover, .suggest button.active { background: var(--green-soft); }
.suggest .s-code { font-family: ui-monospace, Consolas, monospace; font-weight: 700; color: var(--green-dark); flex: none; }
.suggest .s-desc { color: var(--text-2); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---------- sections ---------- */
.section { margin-top: 22px; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 10px; }
.section-head h2 { margin: 0; font-size: 15px; letter-spacing: 0.2px; }
.section-head a { font-size: 12px; color: var(--green-dark); }

.module-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.module-card {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 13px 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  transition: transform 0.12s ease, border-color 0.15s ease;
}
.module-card:hover { border-color: rgba(7, 193, 96, 0.45); transform: translateY(-1px); }
.module-card strong { font-size: 14px; font-weight: 600; }
.module-card span { color: var(--text-3); font-size: 12px; }

/* ---------- result list ---------- */
.result-list { display: flex; flex-direction: column; gap: 10px; }

.result-card {
  display: block;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 1px 1px rgba(16, 24, 40, 0.03);
  transition: border-color 0.15s ease, transform 0.12s ease;
}
.result-card:hover { border-color: rgba(7, 193, 96, 0.5); transform: translateY(-1px); }

.result-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.code-badge {
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-weight: 700;
  font-size: 16px;
  color: var(--green-dark);
  letter-spacing: 0.3px;
}
.result-card .module-tag {
  font-size: 11px;
  color: var(--text-2);
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 1px 7px;
  border-radius: 999px;
}
.vendor-tag {
  font-size: 11px;
  color: var(--blue);
  background: rgba(58, 122, 254, 0.08);
  padding: 1px 7px;
  border-radius: 999px;
}
.result-desc { margin: 6px 0 0; color: var(--text); font-size: 14px; }
.result-sol { margin: 4px 0 0; color: var(--text-2); font-size: 13px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.result-meta { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 6px 12px; color: var(--text-3); font-size: 11px; }
.result-meta span { word-break: break-all; }

/* ---------- detail ---------- */
.backlink { display: inline-flex; align-items: center; gap: 6px; margin: 6px 0 12px; color: var(--text-2); font-size: 13px; }
.backlink:hover { color: var(--green-dark); }

.detail-hero {
  padding: 20px;
  border-radius: 20px;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.detail-code {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 38px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 1px;
  color: var(--green-dark);
}
.detail-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.detail-desc { margin: 14px 0 0; font-size: 16px; font-weight: 600; }

.detail-block {
  margin-top: 12px;
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.detail-block h3 {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--text-3);
}
.detail-block p { margin: 0; font-size: 15px; line-height: 1.75; white-space: pre-wrap; word-break: break-word; }
.detail-block ol { margin: 0; padding-left: 20px; }
.detail-block li { margin: 4px 0; }

.hw-list { display: flex; flex-wrap: wrap; gap: 8px; }
.hw-code {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 13px;
  padding: 5px 10px;
  border-radius: 8px;
  background: var(--bg);
  border: 1px solid var(--line);
  word-break: break-all;
}
.alt-list { display: flex; flex-direction: column; gap: 10px; }

.detail-actions { display: flex; gap: 10px; margin-top: 14px; }
.btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 11px 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--card);
  cursor: pointer;
  font-size: 14px;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { background: var(--green-soft); border-color: rgba(7, 193, 96, 0.4); }
.btn.primary { background: var(--green); border-color: var(--green); color: #fff; }
.btn.primary:hover { background: var(--green-dark); }
.btn[disabled] { opacity: 0.5; cursor: default; }

/* ---------- misc ---------- */
.page-title { margin: 12px 0 4px; font-size: 20px; }
.page-sub { margin: 0 0 16px; color: var(--text-3); font-size: 13px; }

.filter-input {
  width: 100%;
  padding: 11px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  font-size: 15px;
  outline: none;
  margin-bottom: 12px;
}
.filter-input:focus { border-color: var(--green); box-shadow: 0 0 0 3px var(--green-soft); }

.chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.chip {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text-2);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  cursor: pointer;
}
.chip.active { background: var(--green); border-color: var(--green); color: #fff; }

.empty {
  padding: 48px 20px;
  text-align: center;
  color: var(--text-3);
}
.empty strong { display: block; color: var(--text-2); font-size: 15px; margin-bottom: 4px; }

.pager { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 18px; }
.pager span { color: var(--text-3); font-size: 13px; }

.skeleton { height: 88px; border-radius: var(--radius); background: linear-gradient(90deg, var(--card) 25%, var(--bg) 37%, var(--card) 63%); background-size: 400% 100%; animation: shimmer 1.3s ease infinite; }
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: 0 0; } }

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(32px + var(--safe-bottom));
  transform: translate(-50%, 12px);
  background: rgba(20, 24, 31, 0.92);
  color: #fff;
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 100;
  max-width: 80vw;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 380px) {
  .brand-text small { display: none; }
  .detail-code { font-size: 32px; }
}

@media (min-width: 640px) {
  .module-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}