* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  overflow-x: hidden;
  overscroll-behavior-x: none;
}

body {
  font-family: "AlibabaPuHui", "PingFang SC", "Microsoft Yahei", sans-serif;
  color: #333;
  background: #fff;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  overscroll-behavior-x: none;
  touch-action: pan-y;
}

img {
  max-width: 100%;
  display: block;
}

button,
input,
textarea {
  font: inherit;
}

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

:root {
  --color-primary: #ff8c28;
  --color-primary-deep: #f07c16;
  --color-dark: #2f3138;
  --color-muted: #666;
  --color-soft: #f5f5f5;
  --color-soft-deep: #ececec;
  --radius: 10px;
  --section-margin: 60px;
  --section-padding: 3%;
  --header-offset: 4%;
  --title-gap: 10px;
  --header-gap: 25px;
}

.page-main {
  width: 100%;
  overflow-x: clip;
  overscroll-behavior-x: none;
}

.page-section {
  margin-top: var(--section-margin);
  padding: 0 var(--section-padding);
}

.section-head {
  padding-left: var(--header-offset);
  margin-bottom: var(--header-gap);
}

.section-kicker {
  font-size: calc(12 / 12 * 1rem);
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-title {
  margin-top: 6px;
  font-size: calc(22 / 12 * 1rem);
  color: #222;
  line-height: 1.2;
}

.section-desc {
  margin-top: var(--title-gap);
  font-size: 1rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.hero-section {
  position: relative;
  width: 100%;
  margin-top: 0;
  padding: 0;
}

.hero-media {
  width: 100%;
  min-height: 18rem;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 0 8%;
  color: #fff;
}

.hero-title {
  font-size: calc(22 / 12 * 1rem);
  line-height: 1.15;
}

.hero-desc {
  margin-top: 25px;
  font-size: calc(12 / 12 * 1rem);
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.88);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.pill-button,
.ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 6.5rem;
  min-height: 2.5rem;
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  border: none;
  cursor: pointer;
}

.pill-button {
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
}

.ghost-button {
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
}

.tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 0 0 4px 4%;
  margin-bottom: 24px;
  scrollbar-width: none;
}

.tabs::-webkit-scrollbar {
  display: none;
}

.tab-button {
  flex: 0 0 auto;
  border: none;
  border-radius: 999px;
  background: #a7a8ad;
  color: #fff;
  padding: 0.75rem 1rem;
  white-space: nowrap;
  cursor: pointer;
}

.tab-button.is-active {
  background: var(--color-primary);
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
}

.panel-card,
.media-card,
.info-card,
.stat-card,
.mini-card {
  border-radius: var(--radius);
}

.panel-card,
.info-card,
.mini-card {
  background: var(--color-soft);
}

.panel-card {
  padding: 16px;
}

.download-layout {
  display: grid;
  gap: 12px;
}

.download-side {
  display: grid;
  gap: 10px;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.25rem;
  padding: 0 0.9rem;
  border-radius: 999px;
  background: #fff;
  color: #333;
  font-size: calc(12 / 12 * 1rem);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.info-card,
.mini-card {
  padding: 14px;
}

.card-title {
  margin-top: 10px;
  font-size: calc(16 / 12 * 1rem);
  line-height: 1.35;
  color: #222;
}

.card-text {
  margin-top: 8px;
  font-size: calc(13 / 12 * 1rem);
  color: var(--color-muted);
  line-height: 1.6;
}

.card-link {
  display: inline-flex;
  align-items: center;
  margin-top: 12px;
  color: var(--color-primary-deep);
  font-size: calc(13 / 12 * 1rem);
  font-weight: 700;
}

.media-frame {
  overflow: hidden;
  border-radius: var(--radius);
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.accent-card {
  background: linear-gradient(135deg, rgba(255, 140, 40, 0.9), rgba(255, 176, 72, 0.92));
  color: #fff;
}

.split-grid {
  display: grid;
  gap: 10px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.stat-card {
  position: relative;
  overflow: hidden;
  min-height: 7.5rem;
  padding: 16px;
  background: #2d2f35;
  color: #fff;
}

.stat-number {
  font-size: calc(28 / 12 * 1rem);
  font-weight: 700;
  color: var(--color-primary);
}

.stat-label {
  margin-top: 8px;
  font-size: calc(13 / 12 * 1rem);
  color: rgba(255, 255, 255, 0.84);
}

.feature-tags {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.feature-tag {
  min-height: 5.25rem;
  padding: 14px;
  background: #6d8ea8;
  border-radius: var(--radius);
  color: #fff;
}

.feature-tag:nth-child(2n) {
  background: #7d7f86;
}

.feature-tag:nth-child(3n) {
  background: #9c9c9c;
}

.accordion {
  display: grid;
  gap: 10px;
}

.accordion-item {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--color-soft);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 16px;
  border: none;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.accordion-item.is-active .accordion-trigger {
  background: #2f3138;
  color: #fff;
}

.accordion-panel {
  display: none;
  padding: 0 16px 16px;
}

.accordion-item.is-active .accordion-panel {
  display: block;
}

.contact-form {
  display: grid;
  gap: 10px;
  padding: 18px;
  background: var(--color-soft);
  border-radius: var(--radius);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid #ddd;
  border-radius: 10px;
  padding: 0.9rem 1rem;
  background: #fff;
}

.contact-form textarea {
  min-height: 7.5rem;
  resize: vertical;
}

.logo-wall {
  padding: 16px;
  background: var(--color-soft);
  border-radius: var(--radius);
}

.logo-wall img {
  width: 100%;
  height: auto;
}

@media (min-width: 769px) {
  body {
    background: #fafafa;
  }

  .page-main {
    max-width: 520px;
    margin: 0 auto;
    background: #fff;
  }
}