:root {
  --bg: #f7f6f2;
  --bg-2: #fdfcf9;
  --ink: #14201c;
  --ink-2: #45524c;
  --ink-3: #7d8a83;
  --line: #e3e1d8;
  --line-2: #d5d2c6;
  --green: #1f5c46;
  --green-2: #2c7a5c;
  --green-soft: #e8efe9;
  --gold: #b08a4f;
  --danger: #a8402f;
  --radius: 18px;
  --radius-sm: 11px;
  --shadow: 0 1px 2px rgba(20, 32, 28, .04), 0 12px 32px -12px rgba(20, 32, 28, .12);
  --serif: "Songti SC", "Source Han Serif SC", "Noto Serif SC", "STSong", "SimSun", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro SC", "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

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

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

a { color: inherit; text-decoration: none; }

.wrap { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }

/* ------------------------------------------------------------- 顶栏 */

.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  background: rgba(247, 246, 242, .82);
  border-bottom: 1px solid rgba(227, 225, 216, .7);
}
.nav-in {
  height: 68px; display: flex; align-items: center; gap: 28px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: .2px; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px;
  background: linear-gradient(150deg, var(--green-2), var(--green));
  color: #fff; display: grid; place-items: center;
  font-family: var(--serif); font-size: 15px; font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.22);
}
.nav-links { display: flex; gap: 22px; margin-left: auto; font-size: 14px; color: var(--ink-2); }
.nav-links a:hover { color: var(--green); }
@media (max-width: 720px) { .nav-links { display: none; } }

/* ------------------------------------------------------------- 按钮 */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 24px; border-radius: 999px;
  border: 1px solid transparent; background: var(--green); color: #fff;
  font: inherit; font-size: 15px; font-weight: 500; cursor: pointer;
  transition: transform .16s ease, background .16s ease, box-shadow .16s ease;
  box-shadow: 0 6px 18px -8px rgba(31, 92, 70, .55);
}
.btn:hover { background: var(--green-2); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }
.btn.ghost {
  background: transparent; color: var(--ink); border-color: var(--line-2);
  box-shadow: none; font-weight: 400;
}
.btn.ghost:hover { background: #fff; border-color: var(--ink-3); }
.btn.sm { height: 36px; padding: 0 16px; font-size: 13px; }
.btn.wide { width: 100%; }
.btn.danger { background: transparent; color: var(--danger); border-color: #e0cbc5; box-shadow: none; }
.btn.danger:hover { background: #fbf1ef; }

/* ------------------------------------------------------------- 首屏 */

.hero { padding: 92px 0 76px; position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
@media (max-width: 900px) { .hero { padding: 56px 0 40px; } .hero-grid { grid-template-columns: 1fr; } }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--green); background: var(--green-soft);
  border: 1px solid #d6e3d9; border-radius: 999px; padding: 5px 13px;
}
.eyebrow .dot { width: 5px; height: 5px; border-radius: 50%; background: var(--green-2); }

h1.title {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(36px, 4.6vw, 58px); line-height: 1.2;
  letter-spacing: -.01em; margin: 26px 0 0;
  max-width: 11em; text-wrap: balance;
}
h1.title em {
  font-style: normal; color: var(--green);
  display: block; font-size: 1.02em; letter-spacing: .01em; margin-bottom: 2px;
}
h1.title span { display: block; font-size: .74em; line-height: 1.32; }
.lede {
  color: var(--ink-2); font-size: 17px; max-width: 33em; margin: 22px 0 0;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

/* 同心圆装饰 */
.orbit { position: relative; aspect-ratio: 1; max-width: 440px; margin: 0 auto; width: 100%; }
.orbit .ring {
  position: absolute; inset: 0; border: 1px solid var(--line);
  border-radius: 50%; margin: auto;
}
.orbit .ring:nth-child(1) { width: 100%; height: 100%; border-color: #e9e7dd; }
.orbit .ring:nth-child(2) { width: 78%; height: 78%; }
.orbit .ring:nth-child(3) { width: 56%; height: 56%; border-style: dashed; opacity: .8; }
.orbit .ring:nth-child(4) { width: 34%; height: 34%; border-color: var(--line-2); }
.orbit .core {
  position: absolute; inset: 0; width: 86px; height: 86px; margin: auto;
  border-radius: 24px; display: grid; place-items: center;
  background: linear-gradient(150deg, var(--green-2), var(--green));
  color: #fff; font-family: var(--serif); font-size: 30px; font-weight: 700;
  box-shadow: 0 18px 40px -16px rgba(31, 92, 70, .5);
}
.chip {
  position: absolute; width: 54px; height: 54px; border-radius: 15px;
  display: grid; place-items: center; font-size: 22px;
  background: #fff; border: 1px solid var(--line);
  box-shadow: 0 10px 24px -14px rgba(20,32,28,.35);
  animation: float 7s ease-in-out infinite;
}
.chip.a { top: 6%; right: 16%; }
.chip.b { bottom: 10%; left: 6%; animation-delay: -2.4s; }
.chip.c { bottom: 20%; right: 2%; animation-delay: -4.6s; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}
@media (prefers-reduced-motion: reduce) { .chip { animation: none; } }

/* ------------------------------------------------------------- 分节 */

.section { padding: 64px 0; }
.section-head { margin-bottom: 34px; }
.kicker {
  font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--ink-3); margin-bottom: 10px;
}
h2 {
  font-family: var(--serif); font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.25; margin: 0; font-weight: 700;
}
h2 em { font-style: normal; color: var(--green); }
.sub { color: var(--ink-2); margin: 12px 0 0; }

/* 步骤 */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }
.step {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px 24px 24px;
  transition: border-color .2s ease, transform .2s ease;
}
.step:hover { border-color: var(--line-2); transform: translateY(-2px); }
.step-no {
  font-family: var(--serif); font-size: 13px; color: var(--green);
  letter-spacing: .1em; margin-bottom: 14px;
}
.step h3 { margin: 0 0 8px; font-size: 17px; font-weight: 600; }
.step p { margin: 0; color: var(--ink-2); font-size: 14px; line-height: 1.75; }

/* 卡片 */
.card {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow);
}
.panel-narrow { max-width: 640px; margin: 0 auto; }

/* 提示条 */
.notice {
  display: flex; gap: 12px; align-items: flex-start;
  border: 1px solid #e6e0cd; background: #fdfaf0; color: #6b5730;
  border-radius: var(--radius-sm); padding: 14px 16px; font-size: 13.5px;
  line-height: 1.7;
}
.notice.err { border-color: #e6cfc9; background: #fdf3f1; color: #8a3a2c; }
.notice.ok { border-color: #cfe1d4; background: #f1f8f3; color: #235f45; }

/* 表单 */
.field { margin-bottom: 16px; }
.label { display: block; font-size: 13px; color: var(--ink-2); margin-bottom: 7px; }
.input {
  width: 100%; height: 46px; padding: 0 14px;
  border: 1px solid var(--line-2); border-radius: var(--radius-sm);
  background: #fff; color: var(--ink); font: inherit; font-size: 15px;
  transition: border-color .16s ease, box-shadow .16s ease;
}
.input:focus {
  outline: none; border-color: var(--green-2);
  box-shadow: 0 0 0 3px rgba(44, 122, 92, .12);
}
.input::placeholder { color: #a9b3ad; }

/* 键值表 */
.kv { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; }
.kv-row { display: grid; grid-template-columns: 100px 1fr; gap: 14px; background: var(--bg-2); padding: 13px 16px; font-size: 14px; }
.kv-row .k { color: var(--ink-3); }
.kv-row .v { color: var(--ink); word-break: break-all; font-variant-numeric: tabular-nums; }

/* 徽章 */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  height: 22px; padding: 0 9px; border-radius: 999px;
  font-size: 11.5px; letter-spacing: .02em;
  background: var(--green-soft); color: var(--green);
  border: 1px solid #d6e3d9;
}
.badge.warn { background: #fdf6e7; color: #8a6a2a; border-color: #ecdfbf; }
.badge.err { background: #fbf1ef; color: var(--danger); border-color: #e6cfc9; }
.badge.mute { background: #f1f0ea; color: var(--ink-3); border-color: var(--line); }

/* 应用列表 */
.apps { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.app {
  display: flex; gap: 14px; align-items: center; text-align: left;
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 15px; padding: 14px; cursor: pointer;
  transition: border-color .16s ease, background .16s ease, transform .16s ease;
}
.app:hover { border-color: var(--line-2); transform: translateY(-1px); }
.app.sel { border-color: var(--green-2); background: #f4f9f5; box-shadow: 0 0 0 3px rgba(44,122,92,.1); }
.app-ico {
  width: 52px; height: 52px; border-radius: 13px; flex: none;
  background: linear-gradient(150deg, #eef1ea, #e3e7de);
  display: grid; place-items: center; overflow: hidden;
  border: 1px solid var(--line);
  font-family: var(--serif); font-size: 20px; color: var(--ink-3);
}
.app-ico img { width: 100%; height: 100%; object-fit: cover; }
.app-meta { min-width: 0; }
.app-name { font-size: 14.5px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.app-sub { font-size: 12px; color: var(--ink-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* 进度 */
.progress { height: 4px; border-radius: 999px; background: var(--line); overflow: hidden; }
.progress > i {
  display: block; height: 100%; width: 30%; border-radius: 999px;
  background: linear-gradient(90deg, var(--green-2), var(--green));
  animation: slide 1.5s ease-in-out infinite;
}
@keyframes slide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(340%); }
}
.progress.done > i { animation: none; width: 100%; }

/* 页脚 */
.foot {
  border-top: 1px solid var(--line); margin-top: 60px; padding: 34px 0 44px;
  color: var(--ink-3); font-size: 12.5px;
  display: flex; flex-wrap: wrap; gap: 10px 22px; align-items: center;
}
.foot .sp { margin-left: auto; }

/* 设备页 */
.device-main { padding: 48px 0 20px; }
.device-head { text-align: center; margin-bottom: 30px; }
.device-head h1 {
  font-family: var(--serif); font-size: clamp(28px, 4vw, 40px);
  margin: 0 0 8px; font-weight: 700;
}
.device-head p { margin: 0; color: var(--ink-2); font-size: 14.5px; }

/* 徽章式标识 */
.seal {
  width: 64px; height: 64px; margin: 0 auto 18px;
  border-radius: 20px; display: grid; place-items: center;
  background: linear-gradient(150deg, var(--green-2), var(--green));
  color: #fff; font-family: var(--serif); font-size: 24px; font-weight: 700;
  box-shadow: 0 16px 34px -18px rgba(31,92,70,.6);
}

/* 后台 */
.admin-shell { display: grid; grid-template-columns: 220px 1fr; gap: 28px; padding: 32px 0 60px; }
@media (max-width: 860px) { .admin-shell { grid-template-columns: 1fr; } }
.side { position: sticky; top: 92px; align-self: start; }
.side a {
  display: block; padding: 9px 13px; border-radius: 9px;
  font-size: 14px; color: var(--ink-2);
}
.side a.on { background: var(--green-soft); color: var(--green); font-weight: 500; }
.side a:hover { background: #f0eee7; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 26px; }
.stat { background: var(--bg-2); border: 1px solid var(--line); border-radius: 15px; padding: 18px 20px; }
.stat .n { font-family: var(--serif); font-size: 30px; line-height: 1.2; }
.stat .l { font-size: 12px; color: var(--ink-3); letter-spacing: .04em; }

.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table th {
  text-align: left; font-weight: 500; color: var(--ink-3);
  font-size: 12px; letter-spacing: .04em; padding: 10px 12px;
  border-bottom: 1px solid var(--line);
}
.table td { padding: 13px 12px; border-bottom: 1px solid #eeece4; vertical-align: middle; }
.table tr:last-child td { border-bottom: none; }
.table .mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 12px; }
.table-empty { text-align: center; color: var(--ink-3); padding: 34px 0; font-size: 13.5px; }

.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.row.end { justify-content: flex-end; }
.spacer { flex: 1; }

.hidden { display: none !important; }

/* 上传区 */
.drop {
  border: 1.5px dashed var(--line-2); border-radius: var(--radius);
  padding: 30px; text-align: center; color: var(--ink-3);
  background: var(--bg-2); transition: border-color .16s ease, background .16s ease;
  cursor: pointer;
}
.drop:hover, .drop.over { border-color: var(--green-2); background: #f4f9f5; color: var(--green); }
.drop strong { color: var(--ink); font-weight: 500; }

/* 移动端微调 */
@media (max-width: 560px) {
  .wrap { width: calc(100% - 32px); }
  .hero-actions .btn { flex: 1 1 auto; }
  .card { padding: 20px; }
  .kv-row { grid-template-columns: 78px 1fr; gap: 10px; padding: 12px 13px; }
  .stats { grid-template-columns: 1fr; }
}