:root {
  color-scheme: light;
  --ink: #15202b;
  --muted: #627084;
  --line: #dce5ef;
  --blue: #0e5f9f;
  --deep: #08243d;
  --gold: #d8a94f;
  --bg: #f4f8fb;
  --card: #ffffff;
  --radius: 8px;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
}

.app {
  min-height: 100vh;
}

.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  gap: 52px;
  align-items: center;
  padding: 54px clamp(22px, 5vw, 86px);
  background:
    linear-gradient(90deg, rgba(5, 22, 38, 0.95), rgba(7, 44, 75, 0.74) 44%, rgba(7, 44, 75, 0.08)),
    url("./assets/sea-base.png") center/cover;
  color: #fff;
}

.hero-copy {
  max-width: 660px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 12px;
  border: 1px solid rgba(236, 197, 105, 0.7);
  border-radius: 999px;
  color: #ffe7af;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  background: rgba(255, 255, 255, 0.08);
}

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

h1 {
  margin-top: 24px;
  font-size: clamp(44px, 6.4vw, 78px);
  line-height: 1.05;
  letter-spacing: 0;
}

.hero-copy p {
  margin-top: 22px;
  color: rgba(240, 248, 255, 0.88);
  font-size: 19px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 34px;
  flex-wrap: wrap;
}

.btn {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 800;
  cursor: pointer;
  font-size: 16px;
}

.btn.primary {
  background: linear-gradient(135deg, #f2c866, #df9f32);
  color: #10243a;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.22);
}

.btn.ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.1);
}

.hero-preview {
  position: relative;
  justify-self: end;
  width: min(680px, 100%);
}

.hero-preview img {
  width: 100%;
  display: block;
  border-radius: 12px;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.34);
  border: 1px solid rgba(255, 255, 255, 0.32);
}

.float-card {
  position: absolute;
  left: -28px;
  bottom: 28px;
  width: 150px;
  min-height: 96px;
  border-radius: var(--radius);
  padding: 16px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
}

.float-card span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.float-card strong {
  display: block;
  margin-top: 8px;
  font-size: 34px;
  color: var(--blue);
}

.panel,
.examples,
.pricing {
  padding: 72px clamp(18px, 5vw, 86px);
}

.section-head {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 28px;
}

.section-head > span {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--deep);
  color: #ffe2a0;
  font-weight: 900;
}

.section-head h2 {
  font-size: 34px;
  line-height: 1.15;
}

.section-head p {
  margin-top: 7px;
  color: var(--muted);
  font-size: 16px;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  gap: 24px;
}

.form,
.result,
.example-grid article,
.price-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 36px rgba(15, 48, 78, 0.08);
}

.form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 22px;
}

label {
  display: grid;
  gap: 8px;
  color: #334155;
  font-size: 14px;
  font-weight: 700;
}

label.wide,
.submit {
  grid-column: 1 / -1;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid #cdd8e4;
  border-radius: 6px;
  padding: 10px 12px;
  font: inherit;
  color: var(--ink);
  background: #fbfdff;
}

input[type="file"] {
  padding: 9px 10px;
  background: #fff;
}

textarea {
  min-height: 118px;
  resize: vertical;
  line-height: 1.7;
}

.result {
  padding: 22px;
  align-self: start;
}

.mock-poster {
  min-height: 520px;
  border-radius: 10px;
  padding: 24px;
  color: #fff;
  display: flex;
  flex-direction: column;
  background:
    linear-gradient(180deg, rgba(2, 21, 36, 0.2), rgba(2, 21, 36, 0.82)),
    url("./assets/sea-base.png") center/cover;
  overflow: hidden;
}

.mock-poster.text-mode {
  color: var(--ink);
  background: #ffffff;
  border: 1px solid #d9e4ef;
  box-shadow: inset 0 0 0 1px rgba(8, 36, 61, 0.02);
}

.mock-poster.text-mode .mock-top,
.mock-poster.text-mode .mock-bottom {
  color: #607286;
}

.mock-poster.text-mode .mock-top b {
  color: #0e5f9f;
}

.mock-poster.text-mode h3 {
  color: #08243d;
}

.mock-poster.text-mode p {
  color: #475569;
}

.mock-poster.text-mode .mock-lines span {
  background: #f4f8fb;
  border: 1px solid #dbe6f0;
  color: #334155;
}

.mock-poster.text-mode .mock-bottom {
  border-top-color: #dbe6f0;
}

.mock-top,
.mock-bottom {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.82);
}

.mock-top b {
  color: #ffe2a0;
}

.mock-poster h3 {
  margin-top: auto;
  font-size: 34px;
  line-height: 1.18;
}

.mock-poster p {
  margin-top: 10px;
  color: #e7f4ff;
  font-weight: 700;
}

.mock-lines {
  margin-top: 18px;
  display: grid;
  gap: 8px;
}

.mock-lines span {
  display: block;
  padding: 9px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.9);
  font-size: 14px;
  line-height: 1.45;
}

.mock-bottom {
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.result-note {
  margin-top: 16px;
  padding: 16px;
  border-radius: var(--radius);
  background: #eef6fb;
  border: 1px solid #d8e8f4;
}

.result-note strong {
  color: var(--deep);
}

.result-note p {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.6;
}

.wechat-tip {
  grid-column: 1 / -1;
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(216, 169, 79, 0.55);
  background: #fff8e8;
  color: #5a4620;
  font-weight: 700;
  line-height: 1.6;
}

.wechat-tip strong {
  font-size: 18px;
  color: #08243d;
}

.wechat-tip span {
  display: block;
  color: #7a6847;
  font-weight: 600;
}

.example-grid,
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.example-grid article {
  overflow: hidden;
}

.example-grid img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}

.example-grid h3,
.example-grid p {
  padding-left: 18px;
  padding-right: 18px;
}

.example-grid h3 {
  padding-top: 16px;
  font-size: 22px;
}

.example-grid p {
  padding-top: 8px;
  padding-bottom: 18px;
  color: var(--muted);
  line-height: 1.55;
}

.pricing {
  background: #eaf2f8;
}

.price-card {
  padding: 24px;
}

.price-card span {
  color: var(--muted);
  font-weight: 800;
}

.price-card strong {
  display: block;
  margin-top: 12px;
  font-size: 38px;
  color: var(--deep);
}

.price-card p {
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.6;
}

.price-card.hot {
  border-color: var(--gold);
  box-shadow: 0 16px 42px rgba(216, 169, 79, 0.18);
}

@media (max-width: 980px) {
  .hero,
  .workspace,
  .example-grid,
  .price-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 36px;
    min-height: auto;
  }

  .hero-preview {
    justify-self: stretch;
  }
}

@media (max-width: 620px) {
  .hero {
    gap: 22px;
    min-height: auto;
    padding: 24px 16px 34px;
    align-items: start;
    background:
      linear-gradient(180deg, rgba(5, 22, 38, 0.9), rgba(7, 44, 75, 0.68) 46%, rgba(7, 44, 75, 0.18)),
      url("./assets/sea-base.png") 62% center/cover;
  }

  .hero-copy {
    max-width: 100%;
  }

  h1 {
    margin-top: 18px;
    max-width: 8.6em;
    font-size: clamp(36px, 10.4vw, 42px);
    line-height: 1.12;
  }

  h1 span {
    display: inline-block;
  }

  .hero-copy p {
    margin-top: 18px;
    max-width: 21em;
    font-size: 15px;
    line-height: 1.7;
    color: rgba(240, 248, 255, 0.9);
  }

  .eyebrow {
    height: 28px;
    padding: 0 11px;
    font-size: 12px;
  }

  .hero-actions {
    gap: 12px;
    margin-top: 26px;
  }

  .hero-actions .btn {
    min-height: 48px;
    flex: 1 1 132px;
    padding: 0 14px;
  }

  .hero-preview img {
    border-radius: 10px;
    max-height: 300px;
    object-fit: cover;
    object-position: 58% center;
  }

  .float-card {
    left: 12px;
    bottom: 12px;
    width: 126px;
    min-height: 82px;
    padding: 13px;
  }

  .float-card strong {
    font-size: 30px;
  }

  .panel,
  .examples,
  .pricing {
    padding: 40px 14px;
  }

  .form {
    grid-template-columns: 1fr;
    padding: 16px;
  }

  .section-head {
    gap: 12px;
    margin-bottom: 22px;
  }

  .section-head > span {
    width: 36px;
    height: 36px;
    flex: 0 0 36px;
    font-size: 15px;
  }

  .section-head h2 {
    font-size: 27px;
    line-height: 1.18;
  }

  .section-head p {
    font-size: 15px;
    line-height: 1.65;
  }

  .workspace {
    gap: 18px;
  }

  .mock-poster {
    min-height: 430px;
    padding: 18px;
  }

  .mock-poster h3 {
    font-size: 28px;
  }

  .result {
    padding: 16px;
  }

  .example-grid,
  .price-grid {
    gap: 16px;
  }

  .price-card {
    padding: 20px;
  }

  .price-card strong {
    font-size: 32px;
  }
}