/* i02zane.site — Wuwa Tappo 联机房间号展示站 */

:root {
  --bg: #f5f6fa;
  --surface: #ffffff;
  --ink: #0e1424;
  --ink-2: #46506a;
  --ink-3: #79839b;
  --line: #e5e8f0;
  --line-2: #eef1f7;
  --brand: #1f4bff;
  --brand-ink: #1536c4;
  --brand-soft: #eef2ff;
  --mint: #00b894;
  --amber: #e8930c;
  --red: #d64545;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, .04);
  --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 16px 40px -20px rgba(16, 24, 40, .22);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Source Han Sans SC", sans-serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* 顶部柔光背景 */
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto 0;
  height: 520px;
  background:
    radial-gradient(900px 380px at 18% -8%, rgba(31, 75, 255, .10), transparent 70%),
    radial-gradient(700px 320px at 82% -12%, rgba(0, 184, 148, .10), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

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

h1, h2, h3, h4 { line-height: 1.28; letter-spacing: -.01em; margin: 0; }
p { margin: 0; }
img { max-width: 100%; }

.wrap {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.skip {
  position: absolute; left: -9999px;
  background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 8px; z-index: 99;
}
.skip:focus { left: 16px; top: 12px; }

/* ---------------- 头部 ---------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -.02em;
  font-size: 16px;
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }

.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(150deg, #2a5bff, #0ea5a4);
  color: #fff;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: -.04em;
  box-shadow: 0 4px 12px -4px rgba(31, 75, 255, .55);
}

.brand-sub {
  font-size: 12px;
  color: var(--ink-3);
  font-weight: 500;
  letter-spacing: 0;
  padding-left: 10px;
  border-left: 1px solid var(--line);
  display: none;
}
@media (min-width: 720px) { .brand-sub { display: inline; } }

.nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav a {
  color: var(--ink-2);
  font-size: 14.5px;
  padding: 8px 12px;
  border-radius: 8px;
  font-weight: 500;
  white-space: nowrap;
}
.nav a:hover { background: var(--line-2); color: var(--ink); text-decoration: none; }
.nav a[aria-current="page"] { color: var(--brand); background: var(--brand-soft); }

.nav .nav-cta {
  margin-left: 6px;
  background: var(--ink);
  color: #fff;
  padding: 9px 16px;
}
.nav .nav-cta:hover { background: #1b2440; color: #fff; }

@media (max-width: 720px) {
  .nav a:not(.nav-cta) { display: none; }
}

/* ---------------- 通用元素 ---------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: inherit;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 6px 18px -8px rgba(31, 75, 255, .75);
}
.btn-primary:hover { background: var(--brand-ink); text-decoration: none; color: #fff; }
.btn-ghost {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--line);
  box-shadow: var(--shadow-sm);
}
.btn-ghost:hover { border-color: #cfd6e6; text-decoration: none; color: var(--ink); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--brand);
  background: var(--brand-soft);
  border: 1px solid rgba(31, 75, 255, .14);
  padding: 5px 11px;
  border-radius: 999px;
}

.section { padding: 64px 0; }
.section-head { max-width: 720px; margin-bottom: 32px; }
.section-head h2 { font-size: clamp(24px, 3.2vw, 32px); margin: 14px 0 10px; }
.section-head p { color: var(--ink-2); font-size: 16px; }

.hr-soft { height: 1px; background: var(--line); border: 0; margin: 0; }

/* ---------------- Hero ---------------- */

.hero { padding: 72px 0 56px; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(32px, 4.6vw, 50px);
  letter-spacing: -.025em;
  margin: 18px 0 18px;
}
.hero h1 .accent {
  background: linear-gradient(100deg, #1f4bff, #0ea5a4);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .lede {
  color: var(--ink-2);
  font-size: 17px;
  max-width: 44ch;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 26px;
  color: var(--ink-3);
  font-size: 13.5px;
}
.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }
.dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 3px rgba(0, 184, 148, .16);
  flex: none;
}
.dot.pulse { animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(0, 184, 148, .16); }
  50% { box-shadow: 0 0 0 7px rgba(0, 184, 148, .06); }
}

/* 右上角“在线房间”面板 */
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line-2);
  background: linear-gradient(180deg, #fbfcff, #fff);
}
.panel-head .title { font-size: 13.5px; font-weight: 600; color: var(--ink-2); }
.panel-head .live {
  margin-left: auto;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--mint);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.panel-body { padding: 12px; }

.mini-copy {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink-2);
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 7px;
  cursor: pointer;
  font-family: inherit;
}
.mini-copy:hover { border-color: #cfd6e6; color: var(--ink); }
.mini-copy.done { background: #e6f8f3; border-color: #a8e6d7; color: #0a7f68; }

.panel-foot {
  padding: 10px 18px 14px;
  font-size: 12px;
  color: var(--ink-3);
  display: flex;
  justify-content: space-between;
  gap: 10px;
  border-top: 1px solid var(--line-2);
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero { padding: 48px 0 36px; }
}

/* ---------------- 特性 / 步骤 ---------------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.feature {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.feature .ico {
  width: 38px; height: 38px;
  border-radius: 10px;
  display: grid; place-items: center;
  background: var(--brand-soft);
  color: var(--brand);
  margin-bottom: 14px;
}
.feature h3 { font-size: 16.5px; margin-bottom: 6px; }
.feature p { color: var(--ink-2); font-size: 14.5px; }

.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.step {
  background: linear-gradient(180deg, #fff, #fbfcff);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  position: relative;
}
.step .num {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--brand);
  background: var(--brand-soft);
  border-radius: 6px;
  padding: 3px 8px;
  display: inline-block;
  margin-bottom: 12px;
}
.step h3 { font-size: 16px; margin-bottom: 6px; }
.step p { font-size: 14.5px; color: var(--ink-2); }

/* ---------------- 说明块 ---------------- */

.notice {
  background: #fffdf7;
  border: 1px solid #f3e6c8;
  border-radius: var(--radius);
  padding: 20px 22px;
  color: #6b5320;
  font-size: 14.5px;
}
.notice h3 { font-size: 15.5px; color: #5b451a; margin-bottom: 8px; }
.notice ul { margin: 0; padding-left: 20px; }
.notice li + li { margin-top: 6px; }

/* ---------------- 正文页 ---------------- */

.page-head { padding: 56px 0 32px; }
.page-head h1 { font-size: clamp(28px, 4vw, 40px); margin: 14px 0 12px; letter-spacing: -.02em; }
.page-head p { color: var(--ink-2); max-width: 60ch; }

.prose { max-width: 760px; padding-bottom: 72px; }
.prose h2 {
  font-size: 21px;
  margin: 40px 0 12px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.prose h2:first-of-type { border-top: 0; padding-top: 0; margin-top: 24px; }
.prose h3 { font-size: 16.5px; margin: 24px 0 8px; }
.prose p { color: var(--ink-2); margin: 10px 0; }
.prose ul, .prose ol { color: var(--ink-2); padding-left: 22px; margin: 10px 0; }
.prose li + li { margin-top: 6px; }
.prose code {
  font-family: var(--mono);
  font-size: .9em;
  background: #f3f5fa;
  border: 1px solid var(--line);
  padding: 1px 6px;
  border-radius: 5px;
  color: var(--ink);
}
/* ---------------- 页脚 ---------------- */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 40px 0 32px;
  margin-top: 24px;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
  align-items: flex-start;
}

.footer-brand { max-width: 380px; }
.footer-brand p { color: var(--ink-3); font-size: 13.5px; margin-top: 10px; }

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  font-size: 13.5px;
}
.footer-links a { color: var(--ink-2); }
.footer-links a:hover { color: var(--brand); }

.footer-bottom {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--line-2);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  align-items: center;
  font-size: 13px;
  color: var(--ink-3);
}
.footer-bottom .fill { margin-left: auto; }

/* 备案号：默认低调，但清晰可读、可点击 */
.icp {
  color: var(--ink-2) !important;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
}
.icp:hover { color: var(--brand) !important; }
.icp::before {
  content: "";
  width: 12px; height: 12px;
  background: currentColor;
  opacity: .55;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2 3.5 5.6v6.2c0 5.1 3.6 8.9 8.5 10.2 4.9-1.3 8.5-5.1 8.5-10.2V5.6L12 2Zm0 2.2 6.5 2.8v4.8c0 3.9-2.6 6.9-6.5 8-3.9-1.1-6.5-4.1-6.5-8V7Z'/%3E%3C/svg%3E") center/contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 2 3.5 5.6v6.2c0 5.1 3.6 8.9 8.5 10.2 4.9-1.3 8.5-5.1 8.5-10.2V5.6L12 2Zm0 2.2 6.5 2.8v4.8c0 3.9-2.6 6.9-6.5 8-3.9-1.1-6.5-4.1-6.5-8V7Z'/%3E%3C/svg%3E") center/contain no-repeat;
}

/* 复制提示 */
.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translate(-50%, 20px);
  background: #101524;
  color: #fff;
  font-size: 13.5px;
  padding: 10px 18px;
  border-radius: 10px;
  box-shadow: 0 12px 30px -10px rgba(0, 0, 0, .5);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
  z-index: 200;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 6px; }

@media (max-width: 640px) {
  .section { padding: 44px 0; }
  .hero-actions .btn { flex: 1 1 100%; }
  .footer-bottom .fill { margin-left: 0; flex-basis: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ---------------- 下载信息 ---------------- */

.dl-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 14px;
}
.dl-row + .dl-row { border-top: 1px dashed var(--line-2); }
.dl-key { flex: 0 0 88px; color: var(--ink-3); font-size: 13.5px; }
.dl-val {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  color: var(--ink);
  font-weight: 500;
  justify-content: flex-end;
  text-align: right;
}
.mono { font-family: var(--mono); letter-spacing: .02em; }

.pw {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .12em;
  background: var(--brand-soft);
  border: 1px solid rgba(31, 75, 255, .18);
  color: var(--brand-ink);
  padding: 2px 10px;
  border-radius: 6px;
}

@media (max-width: 460px) {
  .dl-row { flex-direction: column; gap: 4px; }
  /* 纵向排列后 flex-basis 会作用到高度上，必须复位 */
  .dl-key { flex: none; }
  .dl-val { flex: none; justify-content: flex-start; text-align: left; }
}

/* ---------------- 房间号 ---------------- */

.room-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(284px, 1fr));
  gap: 16px;
}

.room-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 20px 16px;
  box-shadow: var(--shadow-sm);
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
.room-card:hover {
  border-color: #cfd9ff;
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.room-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.room-label { font-size: 12.5px; color: var(--ink-3); margin-bottom: 6px; }
.room-code {
  font-family: var(--mono);
  font-size: clamp(22px, 2.4vw, 27px);
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--ink);
  word-break: break-all;
  line-height: 1.3;
}
.room-pin {
  flex: none;
  font-size: 12px;
  font-weight: 600;
  color: #a86a24;
  background: #fff5e6;
  border: 1px solid #f3e0bd;
  padding: 3px 9px;
  border-radius: 999px;
}

.room-foot {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px dashed var(--line-2);
  font-size: 12.5px;
  color: var(--ink-3);
}
.room-foot .copy { margin-left: auto; }

.copy {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--brand-ink);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
}
.copy:hover { border-color: #b9c7ff; background: var(--brand-soft); }
.copy.done { background: #e6f8f3; border-color: #a8e6d7; color: #0a7f68; }

.mini-room {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  border-radius: 10px;
}
.mini-room + .mini-room { border-top: 1px dashed var(--line-2); }
.mini-room:hover { background: #fafbff; }
.mini-code {
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: .1em;
}
.mini-meta { margin-left: auto; font-size: 12px; color: var(--ink-3); white-space: nowrap; }

.toolbar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 22px; }
.search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0 12px;
  color: var(--ink-3);
  flex: 1 1 220px;
  min-width: 200px;
}
.search input {
  border: 0; outline: 0; background: transparent;
  padding: 10px 0; font-size: 14.5px; font-family: inherit;
  color: var(--ink); width: 100%;
}
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-2);
  font-size: 13px;
  padding: 8px 13px;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
}
.chip:hover { border-color: #cfd6e6; }
.chip[aria-pressed="true"] {
  background: var(--brand-soft);
  border-color: rgba(31, 75, 255, .24);
  color: var(--brand-ink);
  font-weight: 600;
}
.stamp { font-size: 12.5px; color: var(--ink-3); margin-left: auto; white-space: nowrap; }
.stamp b { color: var(--ink-2); font-weight: 600; }

.empty {
  background: var(--surface);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 26px;
  color: var(--ink-3);
  font-size: 14px;
  text-align: center;
}
.empty strong { display: block; color: var(--ink); font-size: 15.5px; margin-bottom: 4px; }

/* 同步说明 + 下载卡 */
.sync-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; align-items: start; }
.sync-steps { display: grid; gap: 12px; }
.sync-step {
  display: flex;
  gap: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
}
.sync-step .n {
  flex: none;
  width: 26px; height: 26px;
  border-radius: 8px;
  background: var(--brand-soft);
  color: var(--brand-ink);
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 700;
  display: grid;
  place-items: center;
}
.sync-step h3 { font-size: 15px; margin-bottom: 4px; }
.sync-step p { font-size: 13.5px; color: var(--ink-2); }
.callout {
  background: var(--brand-soft);
  border: 1px solid rgba(31, 75, 255, .16);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 14px;
  color: #22306b;
  margin-top: 16px;
}
.callout strong { color: var(--brand-ink); }

@media (max-width: 900px) {
  .sync-grid { grid-template-columns: 1fr; }
  .stamp { margin-left: 0; flex-basis: 100%; }
}
@media (max-width: 560px) {
  .room-grid { grid-template-columns: 1fr; }
  .room-foot .copy { margin-left: 0; }
}