/* 智剪X 官网 — 企业站样式 */

:root {
  --bg: #f6f7f9;
  --bg-elevated: #ffffff;
  --text: #1a1d26;
  --text-muted: #5c6378;
  --border: #e2e5ec;
  --accent: #c41e3a;
  --accent-hover: #a01830;
  --accent-soft: rgba(196, 30, 58, 0.08);
  --teal: #0d6b6b;
  --teal-soft: rgba(13, 107, 107, 0.1);
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(26, 29, 38, 0.06);
  --shadow-hover: 0 12px 40px rgba(26, 29, 38, 0.1);
  --font-sans: "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --font-serif: "Noto Serif SC", "Noto Sans SC", serif;
  --header-h: 72px;
  --maxw: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

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

a {
  color: var(--teal);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(100% - 40px, var(--maxw));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 247, 249, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: var(--header-h);
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo:hover {
  text-decoration: none;
  color: var(--accent);
}

.logo-x {
  color: var(--accent);
  font-weight: 800;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.9375rem;
  text-decoration: none;
}

.nav a:hover {
  color: var(--text);
  text-decoration: none;
}

.header-cta {
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  position: relative;
}

.nav-toggle::before,
.nav-toggle::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: transform 0.2s, top 0.2s, opacity 0.2s;
}

.nav-toggle::before {
  top: 14px;
  box-shadow: 0 8px 0 var(--text);
}

.nav-toggle::after {
  top: 30px;
}

.nav-toggle[aria-expanded="true"]::before {
  top: 21px;
  box-shadow: none;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"]::after {
  top: 21px;
  transform: rotate(-45deg);
}

.nav-drawer {
  display: none;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem 20px 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}

.nav-drawer a {
  padding: 0.75rem 0;
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid var(--border);
}

.nav-drawer a:last-of-type {
  border-bottom: none;
}

.nav-drawer .btn {
  margin-top: 0.5rem;
  text-align: center;
  text-decoration: none;
}

@media (max-width: 768px) {
  .nav,
  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .nav-drawer:not([hidden]) {
    display: flex;
  }
}

@media (min-width: 769px) {
  .nav-drawer {
    display: none !important;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.35rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s, transform 0.15s;
}

.btn:hover {
  text-decoration: none;
}

.btn-sm {
  padding: 0.5rem 1.1rem;
  font-size: 0.875rem;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 12px rgba(196, 30, 58, 0.25);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(196, 30, 58, 0.3);
}

.btn-ghost {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--text-muted);
  color: var(--text);
}

.btn-block {
  width: 100%;
}

/* Hero */
.hero {
  position: relative;
  padding: clamp(3rem, 8vw, 5.5rem) 0 clamp(4rem, 10vw, 6rem);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 85% 15%, rgba(196, 30, 58, 0.07), transparent 55%),
    radial-gradient(ellipse 60% 50% at 10% 80%, rgba(13, 107, 107, 0.08), transparent 50%),
    linear-gradient(180deg, #eef0f4 0%, var(--bg) 45%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
}

.hero h1 {
  margin: 0 0 1.25rem;
  font-family: var(--font-serif);
  font-size: clamp(1.85rem, 4.2vw, 2.75rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text);
}

.lead {
  margin: 0 0 1.75rem;
  font-size: 1.0625rem;
  color: var(--text-muted);
  max-width: 36em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.hero-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
}

.hero-stats li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.hero-stats strong {
  font-size: 1rem;
  color: var(--text);
}

.hero-stats span {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Placeholder shots */
.placeholder-shot {
  border-radius: var(--radius-lg);
  border: 2px dashed var(--border);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.9) 0%, rgba(246, 247, 249, 0.95) 100%),
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 8px,
      rgba(226, 229, 236, 0.5) 8px,
      rgba(226, 229, 236, 0.5) 9px
    );
  min-height: 280px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 2rem;
  box-shadow: var(--shadow);
}

.hero .placeholder-shot {
  min-height: 340px;
  aspect-ratio: 4 / 3;
}

.placeholder-label {
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.placeholder-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  opacity: 0.85;
}

/* Sections */
.section {
  padding: clamp(3.5rem, 7vw, 5.5rem) 0;
}

.section-head {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto 3rem;
}

.section-head h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
}

.section-head p {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.02rem;
}

/* Features */
.features {
  background: var(--bg-elevated);
  border-block: 1px solid var(--border);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 900px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 540px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}

.feature-card {
  padding: 1.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
  transition: box-shadow 0.25s, border-color 0.25s, transform 0.2s;
}

.feature-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: transparent;
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.0625rem;
  font-weight: 600;
}

.feature-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Showcase */
.showcase-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

@media (max-width: 800px) {
  .showcase-row {
    grid-template-columns: 1fr;
  }
}

.showcase-shot {
  min-height: 260px;
  aspect-ratio: 16 / 10;
}

.showcase-copy h2 {
  margin: 0 0 1rem;
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
}

.showcase-copy > p {
  margin: 0 0 1.25rem;
  color: var(--text-muted);
}

.checklist {
  margin: 0;
  padding: 0;
  list-style: none;
}

.checklist li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--text);
  font-size: 0.9375rem;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 3px var(--teal-soft);
}

/* Highlights */
.highlights {
  background: linear-gradient(180deg, var(--bg) 0%, #eceef3 100%);
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

@media (max-width: 900px) {
  .highlight-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .highlight-grid {
    grid-template-columns: 1fr;
  }
}

.highlight-item {
  padding: 1.75rem;
  background: var(--bg-elevated);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.highlight-num {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.highlight-item h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.highlight-item p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* Workflow */
.workflow {
  background: linear-gradient(160deg, #1a1f2e 0%, #0f1219 100%);
  color: #e8eaef;
}

.section-head--light h2 {
  color: #fff;
}

.section-head--light p {
  color: rgba(232, 234, 239, 0.72);
}

.workflow-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .workflow-steps {
    grid-template-columns: 1fr;
  }
}

.workflow-steps li {
  display: flex;
  gap: 1.25rem;
  padding: 1.75rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
}

.step-index {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: #ff8a9a;
  border: 1px solid rgba(196, 30, 58, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.125rem;
}

.workflow-steps h3 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  color: #fff;
}

.workflow-steps p {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(232, 234, 239, 0.7);
  line-height: 1.55;
}

/* CTA */
.cta {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
}

.cta-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}

@media (max-width: 768px) {
  .cta-inner {
    grid-template-columns: 1fr;
  }
}

.cta-copy h2 {
  margin: 0 0 1rem;
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  line-height: 1.35;
}

.cta-copy p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.cta-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.field-full {
  grid-column: 1 / -1;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.field span {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
}

.field input,
.field textarea {
  font-family: inherit;
  font-size: 0.9375rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px var(--teal-soft);
}

.field textarea {
  resize: vertical;
  min-height: 88px;
}

@media (max-width: 480px) {
  .cta-form {
    grid-template-columns: 1fr;
  }

  .field-full {
    grid-column: 1;
  }
}

/* Footer */
.site-footer {
  padding: 2.5rem 0;
  background: #12151c;
  color: rgba(232, 234, 239, 0.85);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
  align-items: flex-start;
}

.footer-brand .logo {
  color: #fff;
}

.footer-brand p {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  color: rgba(232, 234, 239, 0.6);
  max-width: 280px;
}

.footer-meta {
  text-align: right;
}

.footer-meta p {
  margin: 0;
  font-size: 0.8125rem;
  color: rgba(232, 234, 239, 0.55);
}

.fineprint {
  margin-top: 0.5rem !important;
  max-width: 280px;
  margin-left: auto !important;
}

@media (max-width: 600px) {
  .footer-meta {
    text-align: left;
  }

  .fineprint {
    margin-left: 0 !important;
  }
}