/* === General Styles === */
body {
  margin: 0;
  padding: 0;
  background: #111;
  color: #fff;
  font-family: 'Inter', Arial, sans-serif;
  min-height: 100vh;
  box-sizing: border-box;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding-left: 0;
  padding-right: 0;
  width: 100%;
  box-sizing: border-box;
}

/* === Header/Navbar === */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 0 2rem 0;
}
.title {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -1px;
}
.nav-links {
  display: flex;
  gap: 1.5rem;
}
.nav-link {
  background: #222;
  color: #fff;
  padding: 0.7em 1.5em;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  font-size: 1.1rem;
  transition: background 0.2s, color 0.2s;
  border: 1px solid #333;
  cursor: pointer;
}
.nav-link:hover {
  background: #fff;
  color: #111;
}

.nav-link-text {
  color: #fff;
  background: none;
  border: none;
  font-size: 1.15rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  padding: 0.7em 0.5em;
  border-radius: 8px;
  transition: color 0.2s;
}
.nav-link-text:hover {
  color: #fff;
  text-decoration: underline;
}

.nav-link-active {
  color: #e74c3c;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2.5px solid #e74c3c;
  padding-bottom: 0.5em;
}

/* === Main Hero Section === */
.main-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  max-width: 700px;
  margin: 5vh 0;
}
.main-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.1;
}
.subtitle {
  font-size: 1.2rem;
  color: #bbb;
  margin-bottom: 2.5rem;
}
.cta-btn {
  background: #fff;
  color: #111;
  border: none;
  border-radius: 8px;
  padding: 0.9em 2em;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  margin-top: 1rem;
}
.cta-btn:hover {
  background: #333;
  color: #fff;
}

/* === Feature Rows === */
.feature-row {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  margin: 10vh 0 10vh 0;
  gap: 2vw;
  max-width: 100vw;
  width: 100%;
  background: none;
  border-radius: 0;
  box-shadow: none;
  padding-left: 60px;
  padding-right: 60px;
}
.feature-text {
  flex: 1 1 0;
  min-width: 220px;
  max-width: 420px;
  padding-right: 2vw;
  margin-left: 0;
}
.feature-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  color: #fff;
  letter-spacing: -0.5px;
}
.feature-desc {
  font-size: 1rem;
  color: #ccc;
  line-height: 1.5;
}
.feature-image {
  flex: 2 1 0;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  min-width: 220px;
  max-width: none;
}
.feature-image img {
  width: 100%;
  max-width: 900px;
  border-radius: 12px;
  box-shadow: 0 8px 32px 0 #0008, 0 0 0 4px #fff2, 0 2px 24px 0 #fff3;
  background: none;
  margin-left: 0;
}

.feature-image.large-gif img {
  max-width: 900px;
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 8px 32px 0 #0008, 0 0 0 4px #fff2, 0 2px 24px 0 #fff3;
}

.feature-row.reverse-row {
  flex-direction: row-reverse !important;
}

/* === Responsive === */
@media (max-width: 1200px) {
  .feature-row {
    padding-left: 10px;
    padding-right: 10px;
  }
  .container {
    padding-left: 0;
    padding-right: 0;
  }
}

/* === Modal Styles === */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  overflow: auto;
  background: rgba(0,0,0,0.5);
  transition: opacity 0.2s;
}
.modal-content {
  background: #181818;
  margin: 10% auto;
  padding: 2rem 2.5rem;
  border-radius: 12px;
  width: 90%;
  max-width: 400px;
  color: #fff;
  box-shadow: 0 8px 32px 0 #0005;
  position: relative;
  text-align: center;
}
.close {
  color: #aaa;
  position: absolute;
  top: 18px;
  right: 24px;
  font-size: 2rem;
  font-weight: bold;
  cursor: pointer;
  transition: color 0.2s;
}
.close:hover {
  color: #fff;
}
@media (max-width: 600px) {
  .modal-content {
    padding: 1.2rem 0.5rem;
    max-width: 95vw;
  }
}

/* === Dropdown Styles === */
.dropdown {
  position: relative;
  display: inline-block;
}
.dropdown-content {
  display: none;
  position: absolute;
  right: 0;
  background: #222;
  min-width: 240px;
  box-shadow: 0 8px 32px 0 #0003;
  border-radius: 10px;
  z-index: 1100;
  margin-top: 0.5rem;
  padding: 0.5rem 0;
}
.dropdown-content a {
  color: #fff;
  padding: 0.8em 1.5em;
  text-decoration: none;
  display: block;
  font-size: 1.05rem;
  border-bottom: 1px solid #333;
  transition: background 0.2s, color 0.2s;
}
.dropdown-content a:last-child {
  border-bottom: none;
}
.dropdown-content a:hover {
  background: #fff;
  color: #111;
}
.show {
  display: block;
}

.feature-large-img {
  max-width: 780px;
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 8px 32px 0 #0002;
  margin: 0 auto;
  display: block;
}
@media (max-width: 900px) {
  .feature-large-img {
    max-width: 98vw;
  }
}

.site-logo {
  height: 40px;
  vertical-align: middle;
  margin-right: 0.7em;
}

.partner-row {
  width: 100vw;
  background: #111;
  padding: 1.2rem 0;
  overflow-x: hidden;
  position: relative;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
}
.partner-logos {
  display: flex;
  align-items: center;
  gap: 6rem;
  padding: 0 2rem;
  min-width: 1600px;
  animation: scroll-logos 10.5s linear infinite;
}
.partner-logo {
  height: 320px;
  object-fit: contain;
  filter: invert(1) grayscale(1) brightness(1.2);
  opacity: 0.85;
  transition: filter 0.2s, opacity 0.2s;
}
.partner-logo:hover {
  filter: grayscale(0) brightness(1);
  opacity: 1;
}

.rhino-logo {
  height: 160px;
}
@keyframes scroll-logos {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.feature-link {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: inherit;
  transition: color 0.2s;
}
.feature-link:hover {
  color: #fff;
  text-decoration: underline;
}

.team-member {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  margin-bottom: 2rem;
}
.avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid #eee;
  flex-shrink: 0;
}
.team-name {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.2em;
}
.team-role {
  font-size: 1.1rem;
  font-weight: 600;
  color: #888;
  margin-bottom: 0.7em;
}
.team-desc {
  font-size: 1.05rem;
  color: #fff;
  line-height: 1.6;
}
@media (max-width: 600px) {
  .team-member {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .avatar {
    width: 72px;
    height: 72px;
  }
}

/* === Workflow Section (已删除) === */

.invert-logo {
  filter: invert(1) brightness(2);
}

/* === Pricing Cards Layout === */
.pricing-cards-row {
  display: flex;
  gap: 2rem;
  flex-wrap: nowrap;
  justify-content: center;
  margin-bottom: 2rem;
}
.pricing-card {
  background: #181818;
  border-radius: 14px;
  box-shadow: 0 2px 16px #0002;
  padding: 2rem 1.5rem;
  flex: 1 1 0;
  max-width: 320px;
  min-width: 260px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-bottom: 1rem;
}
@media (max-width: 1100px) {
  .pricing-cards-row {
    flex-wrap: wrap;
  }
  .pricing-card {
    flex: 1 1 320px;
    max-width: 98vw;
    min-width: 0;
    width: 100%;
    align-items: stretch;
  }
}
@media (max-width: 900px) {
  .pricing-cards-row {
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
  }
  .pricing-card {
    max-width: 98vw;
    min-width: 0;
    width: 100%;
    align-items: stretch;
  }
}

/* === Feature Compare Section === */
.feature-compare-row {
  display: flex;
  gap: 0;
  justify-content: center;
  align-items: flex-start;
  margin: 3rem 0 2rem 0;
  flex-wrap: nowrap;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}
.feature-compare-col {
  flex: 1 1 0;
  min-width: 320px;
  max-width: 540px;
  color: #fff;
  padding: 0 2.5rem;
  box-sizing: border-box;
}
.feature-compare-col h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 2rem;
  text-align: left;
  color: #fff;
}
.feature-old-list, .feature-edge-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.feature-old-list li, .feature-edge-list li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 2.1em;
}
.feature-old-list li {
  color: #ccc;
  font-size: 1.15rem;
}
.feature-edge-list li {
  color: #b6fcb6;
  font-size: 1.15rem;
}
.feature-old-icon {
  color: #e74c3c;
  font-size: 1.3em;
  margin-right: 1em;
  margin-top: 0.1em;
  flex-shrink: 0;
}
.feature-edge-icon {
  color: #4ade80;
  font-size: 1.3em;
  margin-right: 1em;
  margin-top: 0.1em;
  flex-shrink: 0;
}
.feature-old-list b, .feature-edge-list b {
  font-weight: 700;
  color: #fff;
  min-width: 180px;
  display: inline-block;
  text-align: left;
}
.feature-old-list span, .feature-edge-list span {
  display: inline-block;
}
.feature-compare-row::before {
  content: '';
  display: block;
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: #fff;
  opacity: 0.18;
  z-index: 1;
}
@media (max-width: 1100px) {
  .feature-compare-row {
    flex-direction: column;
    gap: 2rem;
    align-items: stretch;
    max-width: 98vw;
  }
  .feature-compare-row::before {
    display: none;
  }
  .feature-compare-col {
    max-width: 100vw;
    padding: 0 0.5rem;
  }
}

/* === Strict Feature Compare Section (参考图风格) === */
.feature-compare-row-strict {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  position: relative;
  max-width: 1100px;
  margin: 3.5rem auto 0 auto;
  padding-bottom: 2.5rem;
}
.feature-compare-col-strict {
  flex: 1 1 0;
  min-width: 320px;
  max-width: 600px;
  padding: 0 2.5rem;
  box-sizing: border-box;
}
.feature-compare-col-left {
  text-align: left;
}
.feature-compare-col-right {
  text-align: left;
}
.feature-compare-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: #fff;
}
.feature-compare-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.feature-compare-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 2.1em;
  color: #d1d5db;
  font-size: 1.05rem;
  line-height: 1.7;
}
.feature-compare-icon {
  font-size: 1.5em;
  margin-right: 1.1em;
  margin-top: 0.1em;
  flex-shrink: 0;
}
.feature-compare-icon-red {
  color: #e74c3c;
}
.feature-compare-icon-green {
  color: #4ade80;
}
.feature-compare-item strong {
  color: #fff;
  font-weight: 600;
  margin-right: 0.2em;
}
.feature-compare-divider {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: #fff;
  opacity: 1;
  z-index: 1;
}
@media (max-width: 1100px) {
  .feature-compare-row-strict {
    flex-direction: column;
    max-width: 98vw;
    padding-bottom: 0;
  }
  .feature-compare-divider {
    display: none;
  }
  .feature-compare-col-strict {
    max-width: 100vw;
    padding: 0 0.5rem;
  }
}

/* === ArchiCopilot Feature Compare (可复用) === */
.ac-feature-compare-row {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  position: relative;
  max-width: 1100px;
  margin: 3.5rem auto 0 auto;
  padding-bottom: 2.5rem;
}
.ac-feature-compare-col {
  flex: 1 1 0;
  min-width: 320px;
  max-width: 600px;
  padding: 0 2.5rem;
  box-sizing: border-box;
  text-align: left;
}
.ac-feature-compare-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: #fff;
}
.ac-feature-compare-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.ac-feature-compare-item {
  display: flex;
  align-items: flex-start;
  color: #d1d5db;
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 1em;
}
.ac-feature-compare-icon {
  font-size: 1.5em;
  margin-right: 1.1em;
  margin-top: 0.1em;
  flex-shrink: 0;
}
.ac-feature-compare-icon-red {
  color: #e74c3c;
}
.ac-feature-compare-icon-green {
  color: #4ade80;
}
.ac-feature-compare-item strong {
  color: #fff;
  font-weight: 600;
  margin-right: 0.2em;
}
.ac-feature-compare-divider {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: #fff;
  opacity: 1;
  z-index: 1;
}
@media (max-width: 1100px) {
  .ac-feature-compare-row {
    flex-direction: column;
    max-width: 98vw;
    padding-bottom: 0;
  }
  .ac-feature-compare-divider {
    display: none;
  }
  .ac-feature-compare-col {
    max-width: 100vw;
    padding: 0 0.5rem;
  }
}