:root {
  color-scheme: light;
  --ink: #17211b;
  --muted: #5c695f;
  --line: #d8ded8;
  --panel: #ffffff;
  --paper: #f4f1e8;
  --green: #136f63;
  --green-dark: #0b4d45;
  --gold: #c8842f;
  --red: #a43d33;
  --shadow: 0 18px 50px rgba(27, 36, 29, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  letter-spacing: 0;
}

a {
  color: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: 0 32px;
  border-bottom: 1px solid rgba(23, 33, 27, 0.09);
  background: rgba(244, 241, 232, 0.92);
  backdrop-filter: blur(14px);
}

.brand,
.nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand {
  font-weight: 800;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: 154px;
  height: auto;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--green);
  color: white;
  font-size: 14px;
}

.nav a {
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 520px);
  gap: 56px;
  align-items: center;
  min-height: calc(100vh - 64px);
  padding: 56px clamp(24px, 6vw, 88px) 72px;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--red);
  font-size: 13px;
  font-weight: 800;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 800px;
  margin-bottom: 22px;
  font-size: clamp(38px, 7vw, 74px);
  line-height: 1.02;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.12;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
}

.lead {
  max-width: 670px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  gap: 9px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.button svg {
  width: 18px;
  height: 18px;
}

.primary {
  background: var(--green);
  color: #fff;
}

.secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.58);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 150px));
  gap: 14px;
  margin: 0;
}

.stats div {
  padding: 14px 16px;
  border-left: 3px solid var(--gold);
  background: rgba(255, 255, 255, 0.5);
}

.stats dt {
  font-size: 28px;
  font-weight: 900;
}

.stats dd {
  margin: 4px 0 0;
  color: var(--muted);
}

.hero-product {
  overflow: hidden;
  border: 1px solid rgba(23, 33, 27, 0.12);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-product img {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  background: #101514;
}

.preview-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
}

.preview-strip span {
  min-width: 0;
  padding: 14px 8px;
  background: white;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}

.band {
  padding: 72px clamp(24px, 6vw, 88px);
  background: #fff;
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.deliverables,
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.deliverable,
.price-card {
  min-height: 230px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.deliverable svg {
  width: 30px;
  height: 30px;
  color: var(--green);
}

.deliverable p,
.price-card p,
.order-copy p {
  color: var(--muted);
  line-height: 1.7;
}

.deliverable a {
  color: var(--green-dark);
  font-weight: 800;
}

.proof {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  gap: 40px;
  align-items: start;
  padding: 72px clamp(24px, 6vw, 88px);
}

.audience {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.audience li {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 58px;
  padding: 0 18px;
  border: 1px solid rgba(23, 33, 27, 0.1);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.55);
  font-weight: 700;
}

.audience svg {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  color: var(--gold);
}

.price-card {
  position: relative;
  cursor: pointer;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}

.price-card:hover,
.price-card:focus {
  border-color: rgba(19, 111, 99, 0.55);
  outline: none;
  transform: translateY(-2px);
}

.price-card.featured,
.price-card.selected {
  border-color: var(--green);
  box-shadow: var(--shadow);
}

.price-card.selected::after {
  content: "已选择";
  position: absolute;
  right: 18px;
  top: 18px;
  padding: 5px 9px;
  border-radius: 999px;
  background: var(--green);
  color: white;
  font-size: 12px;
  font-weight: 900;
}

.select-plan-button {
  width: 100%;
  min-height: 40px;
  margin-top: 18px;
  border: 1px solid var(--green);
  border-radius: 8px;
  background: #fff;
  color: var(--green-dark);
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.price-card.selected .select-plan-button {
  background: var(--green);
  color: white;
}

.badge {
  display: inline-block;
  margin-bottom: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(19, 111, 99, 0.1);
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 900;
}

.price {
  margin-bottom: 12px;
  color: var(--green-dark);
  font-size: 42px;
  font-weight: 900;
}

.order {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 520px);
  gap: 44px;
  padding: 72px clamp(24px, 6vw, 88px);
}

.order-form {
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 1px solid rgba(23, 33, 27, 0.12);
  border-radius: 8px;
  background: white;
  box-shadow: var(--shadow);
}

.selected-plan {
  display: grid;
  gap: 8px;
  padding: 16px;
  border-radius: 8px;
  background: #f7f2e8;
  border: 1px solid var(--line);
}

.selected-plan span:first-child {
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.selected-plan strong {
  color: var(--green-dark);
  font-size: 24px;
}

.pay-row {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr) 42px;
  align-items: center;
  gap: 12px;
  min-height: 58px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
}

.pay-row span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.pay-row strong {
  overflow-wrap: anywhere;
  font-size: 20px;
}

.icon-button {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  color: var(--green-dark);
  cursor: pointer;
}

.icon-button svg {
  width: 18px;
  height: 18px;
}

.order-note {
  display: flex;
  gap: 12px;
  padding: 16px;
  border-radius: 8px;
  background: rgba(19, 111, 99, 0.08);
}

.order-note svg {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  color: var(--green);
}

.order-note p,
.payment-steps {
  margin: 0;
  color: var(--green-dark);
  line-height: 1.6;
}

.payment-steps {
  padding-left: 20px;
}

.payment-steps li {
  margin: 0 0 8px;
}

.payment-steps li:last-child {
  margin-bottom: 0;
}

.order-note strong,
.payment-required {
  color: var(--red);
  font-weight: 900;
}

label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 13px;
  color: var(--ink);
  font: inherit;
}

textarea {
  resize: vertical;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(24px, 6vw, 88px);
  border-top: 1px solid rgba(23, 33, 27, 0.1);
  color: var(--muted);
  font-size: 14px;
}

.footer a {
  color: var(--green-dark);
  font-weight: 800;
}

.sample-body {
  background: #f7f4ec;
}

.sample-page {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
  padding: 42px 0 72px;
}

.sample-page h1 {
  margin: 26px 0 14px;
  font-size: clamp(32px, 6vw, 56px);
}

.sample-lead {
  color: var(--muted);
  line-height: 1.7;
}

.sample-doc {
  margin-top: 24px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.sample-doc h2 {
  margin: 28px 0 12px;
  font-size: 24px;
}

.sample-doc h2:first-child {
  margin-top: 0;
}

.sample-doc p {
  color: #27322b;
  font-size: 17px;
  line-height: 1.85;
}

.sample-note {
  margin-bottom: 22px;
  padding: 14px 16px;
  border-left: 4px solid var(--gold);
  border-radius: 8px;
  background: rgba(213, 151, 58, 0.11);
  color: #4d4638;
  font-weight: 800;
  line-height: 1.7;
}

.brief-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding-left: 24px;
}

.brief-list li {
  color: #27322b;
  font-size: 16px;
  line-height: 1.75;
}

.brief-list span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.storyboard-table {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.storyboard-table > div {
  display: grid;
  grid-template-columns: 0.8fr 1.5fr 1.5fr 1.4fr;
}

.storyboard-table > div:first-child {
  background: #136f63;
  color: #fff;
}

.storyboard-table strong,
.storyboard-table span {
  padding: 13px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  line-height: 1.6;
}

.storyboard-table em {
  display: none;
  margin-bottom: 4px;
  color: var(--green-dark);
  font-style: normal;
  font-weight: 900;
}

.storyboard-table strong:last-child,
.storyboard-table span:last-child {
  border-right: 0;
}

.storyboard-table > div:last-child span {
  border-bottom: 0;
}

.back-link {
  color: var(--green-dark);
  font-weight: 900;
}

@media (max-width: 900px) {
  .topbar {
    padding: 0 18px;
  }

  .nav {
    gap: 10px;
  }

  .hero,
  .proof,
  .order {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 38px;
  }

  .hero-product {
    max-width: 420px;
  }

  .deliverables,
  .price-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .brand-logo {
    width: 118px;
  }

  .stats {
    grid-template-columns: 1fr;
  }

  .preview-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer {
    flex-direction: column;
  }

  .storyboard-table {
    display: block;
    border: 0;
  }

  .storyboard-table > div {
    display: grid;
    grid-template-columns: 1fr;
    margin-bottom: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
  }

  .storyboard-table > div:first-child {
    display: none;
  }

  .storyboard-table span {
    border-right: 0;
  }

  .storyboard-table em {
    display: block;
  }
}