:root {
  --bg: #f4f6f3;
  --ink: #17231f;
  --muted: #65736d;
  --panel: #ffffff;
  --line: #dbe2dd;
  --green: #0f6b5f;
  --orange: #d86f31;
  --red: #b53d35;
  --blue: #285f92;
  --shadow: 0 18px 45px rgba(30, 42, 36, .1);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

button, input, select { font: inherit; }

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  border-right: 1px solid var(--line);
  background: rgba(255, 255, 255, .78);
  backdrop-filter: blur(16px);
  padding: 22px 16px;
}

.side-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
  margin-bottom: 26px;
}

.side-brand > span {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--green);
  color: #fff;
  font-weight: 900;
  box-shadow: 0 10px 24px rgba(15, 107, 95, .26);
}

.side-brand strong,
.side-brand small {
  display: block;
}

.side-brand strong {
  font-size: 18px;
}

.side-brand small {
  color: var(--muted);
  margin-top: 3px;
  font-size: 12px;
}

.side-nav {
  display: grid;
  gap: 8px;
}

.side-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 12px;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 700;
}

.side-nav a.active,
.side-nav a:hover {
  background: #e8f1ee;
  color: var(--ink);
}

.side-nav span {
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
}

.side-guides {
  margin-top: 22px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
  display: grid;
  gap: 8px;
}

.side-guides p {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 2px;
}

.side-guides a {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  line-height: 1.35;
  padding: 6px 2px;
}

.side-guides a:hover {
  color: var(--green);
}

.app {
  min-height: 100vh;
  padding: 28px;
}

.top {
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--green);
  font-weight: 800;
  font-size: 12px;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(30px, 5vw, 58px);
  letter-spacing: 0;
}

.intro {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.6;
  max-width: 760px;
}

.advice-grid span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 4px;
}

button {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 8px;
  min-height: 40px;
  padding: 0 14px;
  cursor: pointer;
}

.primary {
  width: 100%;
  margin-top: 16px;
  background: var(--green);
  color: #fff;
  border-color: var(--green);
  font-weight: 800;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(320px, .95fr) minmax(320px, 1.05fr) minmax(340px, 1.15fr);
  gap: 18px;
  align-items: start;
  margin-top: 18px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.panel-title {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.step {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: #e8f1ee;
  color: var(--green);
  font-weight: 900;
  flex: 0 0 auto;
}

h2, h3, p { margin: 0; }
h2 { font-size: 20px; }
.panel-title p {
  color: var(--muted);
  font-size: 13px;
  margin-top: 6px;
  line-height: 1.5;
}

.grid, .selector-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

input, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 12px;
  color: var(--ink);
  outline: none;
  background: #fff;
}

input:focus, select:focus {
  border-color: rgba(15, 107, 95, .55);
  box-shadow: 0 0 0 3px rgba(15, 107, 95, .12);
}

.compare {
  margin-top: 16px;
  display: grid;
  gap: 12px;
}

.fulfillment-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  background: #fbfcfb;
}

.fulfillment-card h3 { font-size: 18px; }
.fulfillment-card p {
  color: var(--muted);
  font-size: 13px;
  margin-top: 4px;
  line-height: 1.45;
}

.fulfillment-card strong {
  font-size: 28px;
  color: var(--green);
}

.fulfillment-card span {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 13px;
}

.fulfillment-card.loss strong { color: var(--red); }
.fulfillment-card.best {
  border-color: rgba(15, 107, 95, .42);
  background: #edf7f3;
}

.advice-panel {
  background: #fff;
}

.hero-result {
  min-height: 96px;
  border-radius: 8px;
  padding: 18px;
  background: #17231f;
  color: #fff;
  font-size: 24px;
  line-height: 1.42;
  font-weight: 900;
}

.advice-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.advice-grid div {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fbfcfb;
}

.advice-grid strong {
  display: block;
  font-size: 20px;
  overflow-wrap: anywhere;
}

.ai-box {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
  color: #2b3833;
  padding: 14px;
  line-height: 1.65;
  min-height: 156px;
  white-space: pre-wrap;
}

.seo-content {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.seo-content article {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  padding: 18px;
}

.seo-content h2 {
  font-size: 18px;
  margin-bottom: 8px;
}

.seo-content p {
  color: var(--muted);
  line-height: 1.7;
  font-size: 14px;
}

.content-nav {
  margin-top: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.content-nav {
  margin-top: 0;
  margin-bottom: 0;
}

.content-nav-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.content-nav-head h2 {
  font-size: 22px;
}

.content-nav-head a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 13px;
  background: var(--green);
  color: #fff;
  border-radius: 8px;
  text-decoration: none;
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
}

.content-nav-grid {
  display: grid;
  grid-template-columns: 1.1fr .95fr 1.1fr;
  gap: 12px;
}

.nav-module {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
  padding: 15px;
}

.module-kicker {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: #e8f1ee;
  color: var(--green);
  font-weight: 900;
  font-size: 12px;
}

.nav-module h3 {
  margin: 12px 0 7px;
  font-size: 18px;
}

.nav-module p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
  margin-bottom: 12px;
}

.nav-module a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 40px;
  margin-top: 8px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 13px;
}

.nav-module a::after {
  content: "→";
  color: var(--green);
}

.daily-brief {
  margin-top: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.daily-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 14px;
}

.daily-head h2 {
  font-size: 22px;
}

.daily-head p:last-child {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
  margin-top: 6px;
}

.daily-head span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 11px;
  border-radius: 8px;
  background: #e8f1ee;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
}

.daily-actions {
  display: grid;
  justify-items: end;
  gap: 8px;
}

.daily-actions a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 12px;
  border-radius: 8px;
  background: var(--green);
  color: #fff;
  text-decoration: none;
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
}

.brief-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.brief-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.brief-filters button {
  min-height: 34px;
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.brief-filters button.active {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}

.brief-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
  padding: 14px;
}

.brief-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.brief-card span {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  padding: 0 8px;
  border-radius: 6px;
  background: #e8f1ee;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
}

.brief-card h3 {
  margin: 12px 0 7px;
  font-size: 17px;
}

.brief-card p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.brief-card .brief-zh {
  color: #314039;
  margin-top: 8px;
}

.brief-card .brief-original {
  margin-top: 7px;
  color: #7b8782;
  font-size: 12px;
}

.brief-card .brief-action {
  margin-top: 8px;
  padding: 10px;
  border-radius: 8px;
  background: #e8f1ee;
  color: #0d5d52;
  font-weight: 700;
}

.brief-card a {
  display: inline-flex;
  margin-top: 10px;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.brief-empty {
  grid-column: 1 / -1;
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 12px;
  color: var(--muted);
  background: #fbfcfb;
}

.brief-note {
  margin-top: 12px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

@media (max-width: 1160px) {
  .shell {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
    height: auto;
    padding: 14px 18px;
  }
  .side-brand {
    margin-bottom: 12px;
  }
  .side-nav {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .side-nav a {
    justify-content: center;
    padding: 0 8px;
  }
  .side-guides {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 8px;
    margin-top: 12px;
    padding-top: 12px;
  }
  .side-guides p {
    grid-column: 1 / -1;
  }
  .workspace { grid-template-columns: 1fr; }
  .seo-content { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .content-nav-grid { grid-template-columns: 1fr; }
  .brief-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .app { padding: 16px; }
  .side-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .side-nav a { justify-content: flex-start; }
  .side-guides { grid-template-columns: 1fr; }
  .grid, .selector-row, .advice-grid, .seo-content { grid-template-columns: 1fr; }
  .content-nav-head {
    flex-direction: column;
  }
  .daily-head {
    flex-direction: column;
  }
  .daily-actions {
    justify-items: start;
  }
  .fulfillment-card { grid-template-columns: 1fr; }
}