/* wyzs.top 使用说明站 — 无外部依赖，移动端优先 */
:root {
  color-scheme: light dark;
  --bg: #f4f6f9;
  --bg-soft: #eaeef4;
  --surface: #ffffff;
  --surface-2: #f7f9fc;
  --border: #dfe5ee;
  --text: #15202b;
  --muted: #5b6b7d;
  --accent: #1b4b8f;
  --accent-2: #0f8f84;
  --accent-soft: #e8f0fb;
  --code-bg: #eef2f7;
  --shadow: 0 1px 2px rgba(15, 32, 56, .06), 0 8px 24px rgba(15, 32, 56, .06);
  --radius: 14px;
  --maxw: 960px;
  --fs-h1: clamp(25px, 6.5vw, 36px);
  --fs-h2: 20px;
  --fs-h3: 16.5px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a111b;
    --bg-soft: #0e1825;
    --surface: #121e2d;
    --surface-2: #162334;
    --border: #24344a;
    --text: #e5edf7;
    --muted: #9db0c6;
    --accent: #74a9ff;
    --accent-2: #4fd6c6;
    --accent-soft: #182a44;
    --code-bg: #0e1a28;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 30px rgba(0, 0, 0, .28);
  }
}

* { 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, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }

/* 顶栏 */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 54px;
  min-width: 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 650;
  color: var(--text);
  letter-spacing: .02em;
  margin-right: auto;
  flex: 0 1 auto;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.brand .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.nav { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; flex: 0 1 auto; min-width: 0; }
.nav::-webkit-scrollbar { display: none; }
.nav a {
  white-space: nowrap;
  font-size: 14px;
  color: var(--muted);
  padding: 6px 10px;
  border-radius: 8px;
}
.nav a:hover { text-decoration: none; background: var(--surface); color: var(--text); }
.nav a[aria-current="page"] { color: var(--accent); background: var(--accent-soft); font-weight: 600; }

@media (max-width: 480px) {
  .brand { font-size: 14px; }
  .nav a { font-size: 13px; padding: 6px 8px; }
}

/* 首屏 */
.hero { padding: 36px 0 8px; }
.hero h1 {
  font-size: var(--fs-h1);
  line-height: 1.25;
  margin: 0 0 12px;
  letter-spacing: -.01em;
}
.hero .lead { color: var(--muted); margin: 0; max-width: 46em; }
.hero .meta { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
}

/* 卡片 */
.cards { display: grid; gap: 14px; padding: 26px 0 8px; }
@media (min-width: 720px) { .cards { grid-template-columns: 1fr 1fr; } }

.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  color: var(--text);
  transition: transform .18s ease, border-color .18s ease;
}
.card:hover { text-decoration: none; transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); }
.card .eyebrow { font-size: 12.5px; color: var(--accent-2); letter-spacing: .06em; }
.card h2 { font-size: 19px; margin: 6px 0 6px; }
.card p { margin: 0; color: var(--muted); font-size: 14.5px; }
.card .go { margin-top: 14px; font-size: 13.5px; color: var(--accent); font-weight: 600; }

/* 正文 */
main { padding-bottom: 48px; }

.section { padding-top: 34px; scroll-margin-top: 64px; }
.section > h2 {
  font-size: var(--fs-h2);
  margin: 0 0 12px;
  padding-left: 12px;
  border-left: 4px solid var(--accent);
  line-height: 1.35;
}
.section h3 { font-size: var(--fs-h3); margin: 22px 0 8px; }
.section p { margin: 0 0 12px; }
.section ul, .section ol { margin: 0 0 14px; padding-left: 22px; }
.section li { margin: 4px 0; }

.page-title { padding: 36px 0 8px; }
.page-title h1 { font-size: var(--fs-h1); margin: 0 0 8px; line-height: 1.3; }
.page-title p { margin: 0; color: var(--muted); }

.toc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin: 22px 0 4px;
  font-size: 14.5px;
}
.toc strong { display: block; font-size: 13px; color: var(--muted); letter-spacing: .08em; margin-bottom: 8px; font-weight: 600; }
.toc ul { margin: 0; padding-left: 18px; columns: 2; column-gap: 20px; }
@media (max-width: 560px) { .toc ul { columns: 1; } }
.toc li { margin: 2px 0; break-inside: avoid; }

/* 单页合并：分册入口、分册标题、折叠目录 */
.jump { display: grid; gap: 12px; padding: 18px 0 6px; }
@media (min-width: 640px) { .jump { grid-template-columns: 1fr 1fr; } }
.jump a {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  color: inherit;
  text-decoration: none;
}
.jump a:hover { border-color: var(--accent); }
.jump .eyebrow { display: block; font-size: 12.5px; color: var(--accent-2); letter-spacing: .06em; }
.jump b { display: block; font-size: 18px; margin: 4px 0 2px; }
.jump small { color: var(--muted); font-size: 13px; }

.part { scroll-margin-top: 60px; }
.part-head { padding: 26px 0 4px; border-top: 1px solid var(--border); margin-top: 38px; }
.part-head .eyebrow { font-size: 12.5px; color: var(--accent-2); letter-spacing: .08em; }
.part-head h2 { font-size: clamp(24px, 6vw, 31px); margin: 6px 0 6px; line-height: 1.3; }
.part-head p { margin: 0; color: var(--muted); }

details.toc summary {
  cursor: pointer;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: .08em;
  font-weight: 600;
  list-style: none;
}
details.toc summary::-webkit-details-marker { display: none; }
details.toc summary::before { content: "▸ "; }
details.toc[open] summary::before { content: "▾ "; }
details.toc[open] summary { margin-bottom: 10px; }
details.toc ul { padding-left: 18px; }

/* 表格 */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0 0 16px; border-radius: 12px; border: 1px solid var(--border); background: var(--surface); }
table { border-collapse: collapse; width: 100%; min-width: 460px; font-size: 14px; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
thead th { background: var(--surface-2); font-size: 13px; color: var(--muted); font-weight: 600; white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
td code, th code { white-space: nowrap; }

/* 代码 / 等宽 */
code {
  font-family: ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, monospace;
  font-size: .88em;
  background: var(--code-bg);
  border-radius: 6px;
  padding: 1.5px 5px;
}
pre {
  margin: 0 0 16px;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.65;
}
pre code { background: none; padding: 0; font-size: inherit; }

/* 步骤 */
.steps { list-style: none; padding: 0; counter-reset: step; margin: 0 0 16px; }
.steps li {
  counter-increment: step;
  position: relative;
  padding-left: 42px;
  margin: 0 0 12px;
}
.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0; top: 2px;
  width: 26px; height: 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.steps li strong { display: block; margin-bottom: 2px; }

/* 提示块 */
.note {
  border-left: 3px solid var(--accent-2);
  background: var(--surface);
  border-radius: 0 10px 10px 0;
  padding: 12px 16px;
  margin: 0 0 16px;
  font-size: 14.5px;
  color: var(--muted);
}
.note b { color: var(--text); }
.warn { border-left-color: #d98b17; }

/* 截图 */
.shots { display: grid; grid-template-columns: repeat(auto-fill, minmax(158px, 1fr)); gap: 12px; margin: 0 0 18px; }
.shots figure { margin: 0; }
.shots img {
  width: 100%;
  display: block;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  aspect-ratio: 9 / 19.5;
  object-fit: cover;
  object-position: top center;
}
.shots figcaption { font-size: 12.5px; color: var(--muted); margin-top: 6px; }

/* FAQ */
details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  margin: 0 0 10px;
}
details[open] { padding-bottom: 6px; }
summary { cursor: pointer; font-weight: 600; font-size: 15px; }
details p { color: var(--muted); font-size: 14.5px; margin: 10px 0 6px; }
details ul { margin: 8px 0 6px; padding-left: 22px; color: var(--muted); font-size: 14.5px; }

/* 页脚 */
.footer {
  border-top: 1px solid var(--border);
  padding: 22px 0 34px;
  color: var(--muted);
  font-size: 13px;
}
.footer p { margin: 4px 0; }

.badge {
  display: inline-block;
  font-size: 12px;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-left: 6px;
  vertical-align: 1px;
}
.gap { color: var(--muted); font-size: 14px; }

/* ---------- 门户首页：全屏首屏 ---------- */
.is-portal .topbar {
  background: rgba(4, 18, 40, .78);
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.is-portal .topbar .brand { color: #fff; }
.is-portal .topbar .nav a { color: rgba(255, 255, 255, .72); }
.is-portal .topbar .nav a:hover { background: rgba(255, 255, 255, .1); color: #fff; }
.is-portal .topbar .dot { background: linear-gradient(135deg, #74a9ff, #4fd6c6); }

.ph {
  position: relative;
  min-height: calc(100svh - 54px);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 48px 0 86px;
  color: #fff;
  background: #04122a;
}
.ph-bg {
  position: absolute;
  inset: 0;
  background: url("/assets/img/bg-main.jpg") center / cover no-repeat, #04122a;
}
.ph-accent {
  position: absolute;
  right: -6%;
  bottom: -10%;
  width: min(760px, 64vw);
  height: 74%;
  background: url("/assets/img/brand-grid.jpg") 62% 100% / cover no-repeat;
  opacity: .5;
  -webkit-mask-image: radial-gradient(62% 62% at 60% 60%, #000 22%, transparent 72%);
  mask-image: radial-gradient(62% 62% at 60% 60%, #000 22%, transparent 72%);
  pointer-events: none;
}
.ph-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(3, 16, 38, .96) 0%, rgba(3, 16, 38, .8) 40%, rgba(3, 16, 38, .26) 72%, rgba(3, 16, 38, .6) 100%),
    linear-gradient(180deg, rgba(3, 16, 38, .5) 0%, rgba(3, 16, 38, 0) 34%, rgba(3, 16, 38, .9) 100%);
}
.ph::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .055) 1px, transparent 1px);
  background-size: 50px 50px;
  -webkit-mask-image: radial-gradient(78% 70% at 32% 42%, #000, transparent 74%);
  mask-image: radial-gradient(78% 70% at 32% 42%, #000, transparent 74%);
  z-index: 1;
}
.ph-inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 28px;
  align-items: center;
}
@media (min-width: 900px) {
  .ph-inner { grid-template-columns: minmax(0, 1fr) minmax(300px, 380px); gap: 40px; }
}
.ph-eyebrow {
  display: inline-block;
  font-size: 12.5px;
  letter-spacing: .14em;
  color: #8fd6ee;
  padding: 4px 10px;
  border: 1px solid rgba(143, 214, 238, .35);
  border-radius: 999px;
  background: rgba(143, 214, 238, .08);
}
.ph h1 {
  margin: 16px 0 14px;
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.12;
  letter-spacing: -.02em;
  font-weight: 700;
  text-shadow: 0 2px 20px rgba(0, 12, 30, .5);
}
.ph-lead {
  margin: 0;
  max-width: 33em;
  font-size: clamp(14.5px, 1.5vw, 16.5px);
  line-height: 1.75;
  color: rgba(226, 238, 250, .84);
}
.ph-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.btn-primary, .btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: .01em;
  transition: transform .16s ease, background .16s ease, border-color .16s ease;
}
.btn-primary { background: linear-gradient(120deg, #2f7fe0, #14b8a6); color: #fff; box-shadow: 0 10px 26px rgba(20, 118, 180, .35); }
.btn-ghost { background: rgba(255, 255, 255, .1); color: #fff; border: 1px solid rgba(255, 255, 255, .28); }
.btn-primary:hover, .btn-ghost:hover { text-decoration: none; transform: translateY(-2px); }
.btn-ghost:hover { background: rgba(255, 255, 255, .18); }
.btn-primary span, .btn-ghost span { font-size: 12px; opacity: .78; font-weight: 500; }
.ph-meta { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 22px; font-size: 12.5px; color: rgba(197, 216, 235, .7); }
.ph-meta span { display: inline-flex; align-items: center; gap: 6px; }
.ph-meta span::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: #4fd6c6; }

.ph-stack { position: relative; height: 300px; display: none; }
@media (min-width: 900px) { .ph-stack { display: block; height: 420px; } }
.ph-mock {
  position: absolute;
  right: 6px;
  bottom: 0;
  width: 188px;
  height: 396px;
  border-radius: 26px;
  border: 6px solid rgba(255, 255, 255, .16);
  background: #0b1220;
  box-shadow: 0 26px 56px rgba(0, 6, 18, .55);
  overflow: hidden;
  transform: rotate(3deg);
}
.ph-mock img { width: 100%; height: 100%; object-fit: cover; object-position: top center; display: block; }
.ph-scroll {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: rgba(214, 232, 248, .78);
  letter-spacing: .08em;
}
.ph-scroll:hover { color: #fff; text-decoration: none; }

/* 两个入口大卡片 */
.entries {
  display: grid;
  gap: 16px;
  margin-top: -56px;
  position: relative;
  z-index: 3;
}
@media (min-width: 820px) {
  .entries { grid-template-columns: 1fr 1fr; gap: 20px; margin-top: -72px; }
}
.entry {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 268px;
  padding: 24px 22px;
  border-radius: 22px;
  overflow: hidden;
  color: #fff;
  isolation: isolate;
  box-shadow: 0 18px 46px rgba(9, 26, 52, .22);
  transition: transform .2s ease, box-shadow .2s ease;
}
.entry:hover { text-decoration: none; transform: translateY(-3px); box-shadow: 0 24px 54px rgba(9, 26, 52, .28); }
.entry::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
}
.entry-cjzs::before {
  background:
    linear-gradient(135deg, rgba(9, 30, 66, .5), rgba(9, 30, 66, .12) 55%, rgba(9, 30, 66, .55)),
    linear-gradient(135deg, #1b4b8f 0%, #2f6bc4 52%, #12b3a6 100%);
}
.entry-wy::before {
  background:
    linear-gradient(160deg, rgba(4, 44, 38, .55) 0%, rgba(4, 44, 38, .82) 58%, rgba(4, 40, 34, .96) 100%),
    url("/assets/img/brand-photo.jpg") 62% 40% / cover no-repeat,
    linear-gradient(135deg, #0f766e, #0e7490);
}
.entry::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 36px 36px;
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 65%);
  mask-image: linear-gradient(180deg, #000, transparent 65%);
}
.entry-shot {
  position: absolute;
  right: -18px;
  top: -26px;
  width: 132px;
  border-radius: 14px;
  border: 5px solid rgba(255, 255, 255, .16);
  box-shadow: 0 14px 34px rgba(0, 10, 24, .35);
  transform: rotate(7deg);
  opacity: .96;
}
.entry-eyebrow { font-size: 12px; letter-spacing: .12em; color: rgba(255, 255, 255, .78); }
.entry h2 { margin: 6px 0 4px; font-size: clamp(24px, 4vw, 30px); letter-spacing: .01em; }
.entry-sub { margin: 0 0 14px; font-size: 13.5px; color: rgba(255, 255, 255, .82); }
.entry-list { margin: 0 0 16px; padding-left: 18px; font-size: 13px; line-height: 1.75; color: rgba(255, 255, 255, .9); }
.entry-list li { margin: 2px 0; }
.entry-go { font-size: 13.5px; font-weight: 650; color: #fff; letter-spacing: .02em; }

@media (max-width: 819px) {
  .entry { min-height: 0; padding: 0 22px 24px; }
  .entry-shot {
    position: static;
    display: block;
    width: calc(100% + 44px);
    height: 128px;
    margin: 0 -22px 16px;
    border: 0;
    border-radius: 0;
    transform: none;
    object-fit: cover;
    object-position: top center;
    opacity: 1;
  }
}

/* 使用前须知 */
.facts { display: grid; gap: 14px; padding: 30px 0 6px; }
@media (min-width: 760px) { .facts { grid-template-columns: repeat(3, 1fr); gap: 18px; } }
.fact {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
}
.fact h3 { margin: 0 0 6px; font-size: 16px; }
.fact p { margin: 0; font-size: 14px; color: var(--muted); }

/* ---------- 子页头部 ---------- */
.apphead {
  margin-top: 18px;
  padding: 26px 20px 20px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(27, 75, 143, .10), rgba(15, 143, 132, .06));
}
.apphead[data-app="weiyan"] {
  background: linear-gradient(135deg, rgba(13, 148, 136, .13), rgba(59, 111, 212, .05));
}
.apphead .eyebrow { font-size: 12.5px; letter-spacing: .1em; color: var(--accent-2); }
.apphead h1 { font-size: clamp(24px, 5.6vw, 32px); margin: 6px 0 4px; line-height: 1.25; }
.apphead p { margin: 0; color: var(--muted); font-size: 14.5px; }
.apphead .meta { margin-top: 14px; }

/* ---------- 演示置顶 ---------- */
.demo-first { padding-top: 26px; }
.demo-first > h2 { margin-bottom: 6px; }
.demo-first > p { margin: 0 0 4px; color: var(--muted); }
.demo-first .demo { margin-top: 12px; }
@media (max-width: 640px) {
  .demo-first { padding-top: 20px; }
  .demo-first .demo { margin-top: 10px; }
}

/* ---------- 联系方式 ---------- */
.contact { padding: 34px 0 8px; }
.contact-card {
  display: grid;
  gap: 18px;
  padding: 24px 22px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background:
    linear-gradient(135deg, rgba(27, 75, 143, .08), rgba(15, 143, 132, .06)),
    var(--surface);
  box-shadow: var(--shadow);
}
@media (min-width: 760px) {
  .contact-card { grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 28px; padding: 26px 28px; }
}
.contact-eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--accent-2);
  margin-bottom: 6px;
}
.contact h2 { margin: 0 0 8px; font-size: 21px; line-height: 1.35; }
.contact-copy p { margin: 0; font-size: 14.5px; color: var(--muted); max-width: 38em; }
.contact-qq {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: inherit;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 10px 14px;
  cursor: pointer;
  transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.contact-qq:hover { border-color: var(--accent); box-shadow: 0 6px 18px rgba(15, 32, 56, .1); }
.contact-qq:active { transform: scale(.98); }
.contact-qq:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.contact-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  color: #fff;
  background: var(--accent);
  border-radius: 6px;
  padding: 2px 6px;
}
.contact-num {
  font-family: ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, monospace;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--text);
  user-select: text;
}
.contact-act { font-size: 12.5px; color: var(--accent); white-space: nowrap; }
.contact-qq.is-copied { border-color: var(--accent-2); background: color-mix(in srgb, var(--accent-2) 12%, var(--surface)); }
.contact-done {
  grid-column: 1 / -1;
  margin: 0;
  min-height: 0;
  font-size: 13px;
  color: var(--accent-2);
}
.contact-done:empty { display: none; }