:root {
  --bg: #0b1117;
  --panel: #121b24;
  --panel-2: #172532;
  --line: rgba(224, 234, 241, .14);
  --text: #eef5f8;
  --muted: #94a8b4;
  --green: #20c997;
  --blue: #4aa8ff;
  --warn: #f1b84b;
  --danger: #ef7078;
  --radius: 8px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}
a { color: inherit; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
img { max-width: 100%; }

body[data-page="landing"] {
  background:
    linear-gradient(rgba(7, 11, 16, .62), rgba(7, 11, 16, .94)),
    url("/hero-network.svg") center top / cover no-repeat fixed,
    var(--bg);
}

.site-header,
.app-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 68px;
  padding: 10px clamp(16px, 4vw, 52px);
  border-bottom: 1px solid var(--line);
  background: rgba(11, 17, 23, .88);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 900;
}
.brand img { width: 42px; height: 42px; object-fit: contain; }
nav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
nav a {
  padding: 9px 11px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--muted);
  text-decoration: none;
  font-weight: 800;
}
nav a:hover, .nav-cta { border-color: var(--line); color: var(--text); background: rgba(255,255,255,.05); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.05);
  color: var(--text);
  text-decoration: none;
  font-weight: 900;
}
.btn.danger {
  border-color: rgba(239, 112, 120, .36);
  background: rgba(239, 112, 120, .12);
  color: #ffd6d9;
}
.btn.primary { background: var(--green); color: #061512; border-color: rgba(32, 201, 151, .7); }
.btn.secondary { background: rgba(74, 168, 255, .12); border-color: rgba(74, 168, 255, .32); }
.btn.ghost { background: transparent; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.action-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.hint { color: var(--muted); line-height: 1.65; }
.eyebrow, .section-head span, .page-title span, .price-card span, .purchase-panel span, .config-card span {
  display: inline-block;
  color: var(--green);
  font-weight: 900;
  text-transform: uppercase;
}

.landing-hero {
  min-height: calc(100vh - 68px);
  display: flex;
  align-items: center;
  padding: clamp(44px, 8vw, 96px) clamp(16px, 6vw, 84px);
}
.hero-text { max-width: 820px; }
.hero-text h1 {
  margin: 10px 0 16px;
  font-size: clamp(54px, 10vw, 112px);
  line-height: .95;
  letter-spacing: 0;
}
.lead {
  max-width: 720px;
  color: #cbd9e2;
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.7;
}

.section {
  padding: clamp(40px, 6vw, 72px) clamp(16px, 6vw, 84px);
  border-top: 1px solid var(--line);
}
.section-head { max-width: 860px; margin-bottom: 18px; }
.section-head h2, .page-title h1 {
  margin: 6px 0 8px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.1;
  letter-spacing: 0;
}
.section-head p, .page-title p { color: var(--muted); line-height: 1.65; }
.plan-layout {
  display: grid;
  grid-template-columns: minmax(260px, .7fr) minmax(0, 1.3fr);
  gap: 14px;
}
.price-card, .rule-grid article, .process-list li, .split-section article, .state-card,
.purchase-panel, .list-panel, .config-card, .empty-panel, .summary-grid article, .product-card,
.download-card, .guide-grid article, .setting-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 27, 36, .88);
}
.price-card { display: grid; gap: 8px; padding: 22px; }
.price-card strong { font-size: clamp(52px, 8vw, 86px); line-height: 1; }
.price-card small { color: var(--muted); }
.rule-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.rule-grid article { padding: 18px; }
.rule-grid p, .split-section p { color: var(--muted); line-height: 1.65; }
.process-list { list-style: none; counter-reset: step; display: grid; gap: 12px; padding: 0; margin: 0; }
.process-list li { position: relative; padding: 18px 18px 18px 56px; }
.process-list li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 16px;
  top: 18px;
  color: var(--green);
  font-weight: 900;
}
.process-list p { margin: 6px 0 0; color: var(--muted); }
.split-section { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.split-section article { padding: 20px; }
.site-footer { display: flex; gap: 14px; flex-wrap: wrap; padding: 24px clamp(16px, 6vw, 84px); border-top: 1px solid var(--line); color: var(--muted); }
.site-footer a { text-decoration: none; }

.client-shell, .ops-shell {
  display: grid;
  grid-template-columns: 236px minmax(0,1fr);
  min-height: 100vh;
}
.client-sidebar, .ops-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px;
  border-right: 1px solid var(--line);
  background: #0d151d;
}
.client-sidebar strong { margin: 8px 0 10px; }
.side-item, .ops-nav {
  width: 100%;
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: transparent;
  color: var(--muted);
  text-align: left;
  font-weight: 900;
}
.side-item.active, .side-item:hover, .ops-nav.active, .ops-nav:hover {
  color: var(--text);
  border-color: rgba(32, 201, 151, .32);
  background: rgba(32, 201, 151, .12);
}
.client-main, .ops-main { padding: clamp(18px, 4vw, 38px); min-width: 0; }
.client-view, .ops-panel { display: none; }
.client-view.active, .ops-panel.active { display: block; }
.page-title { margin-bottom: 18px; }
.state-card { padding: 22px; margin-bottom: 18px; }
.summary-grid, .kpi-grid, .task-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.summary-grid article, .kpi-grid article, .task-grid article { padding: 16px; }
.summary-grid span, .kpi-grid span { display: block; color: var(--muted); margin-bottom: 6px; }
.summary-grid strong, .kpi-grid strong { font-size: 24px; }
.product-state { display: grid; gap: 12px; }
.product-card {
  display: grid;
  grid-template-columns: minmax(0,1fr) 150px 110px auto;
  gap: 12px;
  align-items: center;
  padding: 16px;
}
.product-card.active { border-color: rgba(32, 201, 151, .48); background: rgba(32, 201, 151, .08); }
.product-card span { display: block; color: var(--muted); font-size: 13px; }
.empty-panel, .purchase-panel, .config-card { padding: 20px; }
.order-layout { display: grid; grid-template-columns: 320px minmax(0,1fr); gap: 14px; }
.purchase-panel strong { display: block; font-size: 56px; line-height: 1; margin: 6px 0; }
.list-panel { padding: 12px; }
.list-row { display: grid; gap: 4px; padding: 12px; border-bottom: 1px solid var(--line); }
.list-row:last-child { border-bottom: 0; }
.list-row span, .list-row small { color: var(--muted); }
.config-panel { display: grid; gap: 12px; }

.wechat-shell {
  display: grid;
  grid-template-columns: 280px minmax(0,1fr);
  min-height: 620px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}
.wechat-list, .conversation-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px;
  border-right: 1px solid var(--line);
  background: #0f1820;
}
.visitor-card input, .visitor-card select, .chat-input-row input, .chat-input-row textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #0c131a;
  color: var(--text);
  padding: 11px 12px;
}
.wechat-chat { display: grid; grid-template-rows: auto minmax(0,1fr) auto; min-height: 620px; }
.chat-head { display: flex; justify-content: space-between; gap: 12px; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.chat-head div { display: grid; gap: 4px; }
.chat-head span,
.chat-head small { color: var(--muted); }
.chat-messages { overflow: auto; padding: 18px; display: flex; flex-direction: column; gap: 12px; }
.bubble { max-width: min(640px, 86%); display: grid; gap: 6px; }
.bubble.mine { align-self: flex-end; }
.bubble.theirs { align-self: flex-start; }
.bubble small { color: var(--muted); }
.bubble p { margin: 0; padding: 10px 12px; border-radius: var(--radius); background: #202d38; line-height: 1.6; word-break: break-word; }
.bubble.mine p { background: #d6f7ea; color: #071512; }
.ops-bubble.mine small { text-align: right; }
.ops-bubble.theirs small { text-align: left; }
.ops-bubble.system {
  align-self: center;
  max-width: min(720px, 92%);
  text-align: center;
}
.ops-bubble.system p {
  background: rgba(255, 209, 102, .12);
  color: var(--text);
}
.chat-image img { max-width: min(260px, 64vw); max-height: 260px; object-fit: cover; border-radius: var(--radius); }
.chat-input-row { display: grid; grid-template-columns: auto minmax(0,1fr) auto; gap: 10px; padding: 12px; border-top: 1px solid var(--line); }
.chat-input-row textarea { resize: none; min-height: 42px; }
.upload-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.05);
  font-weight: 900;
  overflow: hidden;
}
.upload-btn input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.support-shell, .download-shell { padding: clamp(24px, 5vw, 58px) clamp(16px, 6vw, 84px); }
.support-chat-shell { min-height: 660px; }
.download-grid, .guide-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 14px;
}
.download-card { display: grid; gap: 8px; padding: 18px; text-decoration: none; }
.download-card span { color: var(--green); font-weight: 900; }
.download-card small, .guide-grid li { color: var(--muted); }
.guide-grid { grid-template-columns: 1fr 1fr; margin-top: 14px; }
.guide-grid article { padding: 18px; }

.ops-shell { grid-template-columns: 250px minmax(0,1fr); }
.ops-sidebar footer { margin-top: auto; display: grid; gap: 6px; }
.ops-sidebar footer a { color: var(--muted); text-decoration: none; }
.ops-top { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 16px; }
.ops-top span { color: var(--green); font-weight: 900; }
.ops-top h1 { margin: 4px 0 0; font-size: clamp(28px, 4vw, 42px); }
.ops-top-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.ops-notice {
  margin: -6px 0 14px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(74, 168, 255, .1);
  color: var(--text);
  font-weight: 800;
}
.ops-notice.success {
  border-color: rgba(32, 201, 151, .36);
  background: rgba(32, 201, 151, .12);
}
.ops-notice.error {
  border-color: rgba(255, 107, 107, .36);
  background: rgba(255, 107, 107, .12);
}
.panel-head { margin-bottom: 14px; }
.panel-head h2 { margin: 0 0 6px; }
.panel-head p { margin: 0; color: var(--muted); }
#opsKpis.kpi-grid,
#opsTasks.task-grid {
  display: block;
}
#opsTasks.task-grid {
  margin-top: 12px;
}
.overview-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: end;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  margin-bottom: 14px;
}
.overview-hero span,
.overview-card span,
.overview-card small,
.overview-panel small,
.overview-hero-side small {
  color: var(--muted);
}
.overview-hero h2 {
  margin: 4px 0;
  font-size: 30px;
}
.overview-hero p {
  margin: 0;
  color: var(--muted);
}
.overview-hero-side {
  display: grid;
  gap: 5px;
  text-align: right;
}
.overview-card-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(130px, 1fr));
  gap: 10px;
}
.overview-card {
  display: grid;
  gap: 7px;
  min-height: 118px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--text);
  text-align: left;
}
.overview-card:hover {
  border-color: rgba(74, 168, 255, .36);
  background: rgba(74, 168, 255, .08);
}
.overview-card strong {
  font-size: 28px;
}
.overview-card.ok strong { color: var(--green); }
.overview-card.warning strong { color: var(--warn); }
.overview-layout {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.overview-panel {
  display: grid;
  align-content: start;
  gap: 12px;
  min-height: 230px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.overview-panel.wide {
  grid-column: span 2;
}
.ai-diagnosis-card {
  min-height: 180px;
}
.ai-diagnosis-card pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
  font-size: 13px;
  line-height: 1.65;
  padding: 12px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 10px;
  background: rgba(0,0,0,.16);
}
.overview-panel header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.overview-panel h3 {
  margin: 0;
}
.overview-todo {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}
.overview-todo button {
  display: grid;
  gap: 5px;
  min-height: 112px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255,255,255,.035);
  color: var(--text);
  text-align: left;
}
.overview-todo button:hover {
  background: rgba(32, 201, 151, .1);
}
.overview-todo strong {
  font-size: 24px;
  color: var(--green);
}
.overview-todo small {
  color: var(--muted);
}
.overview-pools,
.overview-list {
  display: grid;
  gap: 9px;
}
.pool-row,
.overview-list div {
  display: grid;
  grid-template-columns: minmax(150px, 1fr) minmax(120px, .8fr) auto;
  gap: 10px;
  align-items: center;
  padding: 10px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 10px;
  background: rgba(255,255,255,.025);
}
.overview-list div {
  grid-template-columns: minmax(0, 1fr);
}
.pool-row b,
.overview-list b {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pool-bar {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
}
.pool-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--green);
}
.ops-search {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto;
  gap: 10px;
  align-items: center;
  margin-bottom: 14px;
}
.ops-search input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #0c131a;
  color: var(--text);
  padding: 11px 12px;
  outline: none;
}
.ops-search input:focus {
  border-color: rgba(74, 168, 255, .65);
  box-shadow: 0 0 0 3px rgba(74, 168, 255, .12);
}
.ops-search span {
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}
.table-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: auto;
  background: var(--panel);
}
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { padding: 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-size: 13px; }
td small { display: block; color: var(--muted); margin-top: 4px; }
code { color: #a7f3d0; word-break: break-all; }
.upstream-create-card {
  display: grid;
  gap: 12px;
  margin-bottom: 16px;
  padding: 16px;
  border: 1px solid rgba(32, 201, 151, .24);
  border-radius: var(--radius);
  background: rgba(32, 201, 151, .07);
}
.upstream-create-card h3 {
  margin: 0;
}
.upstream-create-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}
.upstream-form {
  display: grid;
  gap: 12px;
}
.upstream-form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-weight: 800;
}
.upstream-form input,
.upstream-form textarea,
.upstream-form select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #0c131a;
  color: var(--text);
  padding: 11px 12px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.dispatch-rule {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
  padding: 16px;
  border: 1px solid rgba(74, 168, 255, .22);
  border-radius: var(--radius);
  background: rgba(74, 168, 255, .08);
}
.dispatch-rule span { color: var(--muted); line-height: 1.65; }
.upstream-slot-group {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.upstream-slot-head {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(180px, .42fr) minmax(120px, .24fr) auto;
  gap: 12px;
  align-items: stretch;
}
.upstream-slot-head span,
.upstream-slot-head small,
.slot-card small,
.slot-meta dt {
  color: var(--muted);
}
.upstream-slot-head h3 { margin: 4px 0; font-size: 24px; }
.upstream-countdown,
.upstream-capacity {
  display: grid;
  gap: 4px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255,255,255,.035);
}
.upstream-countdown strong,
.upstream-capacity strong { font-size: 24px; }
.upstream-slot-actions {
  display: grid;
  align-content: center;
  gap: 8px;
}
.upstream-slot-actions .btn {
  width: 100%;
}
.upstream-slot-head > .btn {
  align-self: center;
  white-space: nowrap;
}
.upstream-countdown.ok strong { color: var(--green); }
.upstream-countdown.warning strong { color: var(--yellow); }
.upstream-countdown.expired strong { color: var(--red); }
.slot-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(190px, 1fr));
  gap: 10px;
}
.slot-card {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 330px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255,255,255,.035);
}
.slot-card.active { border-color: rgba(32, 201, 151, .36); background: rgba(32, 201, 151, .075); }
.slot-card.frozen { border-color: rgba(255, 107, 107, .34); background: rgba(255, 107, 107, .08); }
.slot-card.scheduled { border-color: rgba(255, 209, 102, .34); background: rgba(255, 209, 102, .08); }
.slot-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.slot-card-head span {
  padding: 3px 7px;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  color: var(--muted);
  font-size: 12px;
}
.slot-customer { display: grid; gap: 4px; min-height: 48px; }
.slot-customer b,
.slot-customer small,
.slot-meta dd { word-break: break-all; }
.slot-meta { display: grid; gap: 7px; margin: 0; }
.slot-meta div { display: grid; gap: 2px; }
.slot-meta dt,
.slot-meta dd { margin: 0; }
.slot-meta code { white-space: normal; }
.slot-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  margin-top: auto;
}
.slot-actions .btn { width: 100%; }
.qr-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: rgba(4, 9, 15, .72);
  backdrop-filter: blur(10px);
}
.qr-modal.active { display: flex; }
.qr-dialog {
  position: relative;
  display: grid;
  gap: 12px;
  width: min(420px, 100%);
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #101922;
  box-shadow: 0 24px 80px rgba(0,0,0,.38);
}
.qr-dialog h3 { margin: 0; }
.qr-dialog p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}
.qr-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255,255,255,.05);
  color: var(--text);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}
.subscription-qr-box {
  display: grid;
  place-items: center;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}
.subscription-qr-box img {
  width: min(320px, 100%);
  height: auto;
  image-rendering: pixelated;
}
.qr-dialog code {
  display: block;
  max-height: 72px;
  overflow: auto;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255,255,255,.04);
  color: var(--muted);
  white-space: normal;
  word-break: break-all;
}
.qr-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.slot-expiry-form {
  display: grid;
  gap: 7px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255,255,255,.03);
}
.slot-expiry-form label {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}
.slot-expiry-form input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0c131a;
  color: var(--text);
  padding: 8px 9px;
}
.slot-empty-note {
  display: block;
  margin-top: auto;
  color: var(--muted);
  line-height: 1.55;
}
.subscription-manage {
  display: grid;
  gap: 16px;
}
.subscription-tech-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 12px;
}
.subscription-tech-summary article,
.subscription-tech-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.subscription-tech-summary article {
  display: grid;
  gap: 5px;
  padding: 14px;
}
.subscription-tech-summary span,
.subscription-tech-summary small,
.subscription-tech-card span,
.subscription-tech-card small,
.subscription-tech-section p {
  color: var(--muted);
}
.subscription-tech-summary strong {
  font-size: 26px;
}
.subscription-tech-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(320px, 1fr));
  gap: 14px;
}
.subscription-tech-card {
  display: grid;
  gap: 14px;
  padding: 16px;
}
.subscription-tech-card.ok { border-color: rgba(32, 201, 151, .24); }
.subscription-tech-card.warning { border-color: rgba(255, 209, 102, .36); }
.subscription-tech-card.danger { border-color: rgba(255, 107, 107, .36); }
.subscription-tech-card header,
.subscription-tech-card footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.subscription-tech-card header h3 {
  margin: 4px 0;
  font-size: 22px;
}
.subscription-tech-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(110px, 1fr));
  gap: 10px;
}
.subscription-tech-metrics div,
.subscription-tech-section {
  display: grid;
  gap: 5px;
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255,255,255,.035);
}
.subscription-tech-metrics strong {
  font-size: 24px;
}
.subscription-tech-section p {
  margin: 0;
  line-height: 1.65;
}
.subscription-tech-section div {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 12px;
}
.subscription-tech-card footer {
  flex-wrap: wrap;
  justify-content: flex-start;
}
.subscription-tech-card footer span {
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(255,255,255,.06);
  font-size: 12px;
}
.ops-chat-layout { display: grid; gap: 12px; }
.ops-chat-layout .ops-search { margin-bottom: 0; }
.ops-chat-body { display: grid; grid-template-columns: 300px minmax(0,1fr); min-height: 620px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--panel); }
.conversation-list button { border: 0; border-radius: var(--radius); background: transparent; color: var(--text); text-align: left; padding: 10px; }
.conversation-list button.active, .conversation-list button:hover { background: rgba(32,201,151,.12); }
.conversation-list span,
.conversation-list small { display: block; color: var(--muted); font-size: 12px; margin-top: 4px; }
.support-desk {
  display: grid;
  gap: 12px;
}
.support-toolbar {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto;
  gap: 12px;
  align-items: stretch;
}
.support-search {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.support-search span,
.support-search small,
.support-stats span,
.support-queue-head span,
.support-chat-head span,
.support-chat-head small,
.support-profile span {
  color: var(--muted);
}
.support-search input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #0c131a;
  color: var(--text);
  padding: 11px 12px;
}
.support-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(84px, 1fr));
  gap: 8px;
}
.support-stats article {
  display: grid;
  gap: 4px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.support-stats strong { font-size: 20px; }
.support-workspace {
  display: grid;
  grid-template-columns: 300px minmax(420px, 1fr) 240px;
  height: clamp(500px, calc(100vh - 245px), 760px);
  min-height: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}
.support-queue {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: 12px;
  border-right: 1px solid var(--line);
  background: #0f1820;
  overflow: auto;
}
.support-queue-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 4px 2px 8px;
}
.support-thread {
  display: grid;
  gap: 6px;
  width: 100%;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  text-align: left;
  padding: 11px;
}
.support-thread.active,
.support-thread:hover {
  border-color: rgba(32, 201, 151, .3);
  background: rgba(32, 201, 151, .12);
}
.support-thread b,
.support-thread small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.support-thread small { color: var(--muted); }
.thread-order {
  width: fit-content;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(74, 168, 255, .12);
  color: #9ed2ff;
  font-size: 12px;
  font-weight: 900;
}
.support-chat {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  min-height: 0;
  background: #101922;
}
.support-chat-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.025);
}
.support-chat-head h3 {
  margin: 3px 0;
  font-size: 24px;
}
.support-chat-head strong:last-child {
  align-self: start;
  padding: 5px 9px;
  border-radius: 999px;
  background: rgba(32, 201, 151, .12);
  color: var(--green);
}
.support-messages {
  overflow: auto;
  min-height: 0;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.support-composer {
  position: sticky;
  bottom: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px;
  padding: 12px;
  border-top: 1px solid var(--line);
  background: rgba(255,255,255,.025);
}
.support-composer input[name="message"] {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #0c131a;
  color: var(--text);
  padding: 11px 12px;
}
.support-upload {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 64px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--muted);
  cursor: pointer;
}
.support-upload input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}
.support-profile {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 14px;
  border-left: 1px solid var(--line);
  background: #0f1820;
}
.support-profile div {
  display: grid;
  gap: 5px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255,255,255,.03);
}
.support-profile strong { word-break: break-word; }
.settings-grid { display: grid; grid-template-columns: minmax(280px, 420px); gap: 14px; }
.setting-card { padding: 18px; }
.qr-preview { width: min(260px, 100%); border-radius: var(--radius); background: #fff; padding: 8px; }
.finance-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}
.finance-grid article {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 27, 36, .88);
}
.finance-grid span, .finance-grid small { color: var(--muted); }
.finance-grid strong { display: block; margin: 8px 0 4px; font-size: 26px; }
.finance-split { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.finance-split h3 { margin: 0 0 10px; }

@media (max-width: 980px) {
  .plan-layout, .split-section, .order-layout, .client-shell, .ops-shell, .wechat-shell, .ops-chat-body, .support-toolbar, .support-workspace, .upstream-slot-head, .finance-split, .subscription-tech-grid { grid-template-columns: 1fr; }
  .client-sidebar, .ops-sidebar { position: static; height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .summary-grid, .kpi-grid, .task-grid, .download-grid, .overview-card-grid, .overview-layout, .subscription-tech-summary, .subscription-tech-metrics { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .finance-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .overview-panel.wide { grid-column: span 2; }
  .overview-todo { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .product-card { grid-template-columns: 1fr; }
  .slot-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .support-queue, .support-profile { border: 0; border-bottom: 1px solid var(--line); }
  .support-workspace { height: auto; }
  .support-chat { min-height: 520px; }
}

@media (max-width: 640px) {
  .site-header, .app-header { align-items: flex-start; flex-direction: column; }
  nav { width: 100%; overflow-x: auto; flex-wrap: nowrap; }
  .hero-text h1 { font-size: 48px; }
  .rule-grid, .summary-grid, .kpi-grid, .task-grid, .download-grid, .guide-grid, .overview-card-grid, .overview-layout, .overview-todo, .overview-hero, .subscription-tech-summary, .subscription-tech-metrics, .subscription-tech-section div { grid-template-columns: 1fr; }
  .overview-panel.wide { grid-column: span 1; }
  .overview-hero-side { text-align: left; }
  .pool-row { grid-template-columns: 1fr; }
  .action-row, .chat-input-row, .support-search, .support-stats, .support-composer { grid-template-columns: 1fr; display: grid; }
  .qr-actions { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  table { min-width: 680px; }
}