#sign-section .main-card {
  padding: 20px 24px;
}

#sign-section .spacer,
#sign-section .space,
#sign-section .mt-large,
#sign-section .mb-large {
  margin-top: 12px !important;
  margin-bottom: 12px !important;
}

#sign-section .card-title,
#sign-section .section-title,
#sign-section h1,
#sign-section h2 {
  margin-top: 0;
  margin-bottom: 8px;
}

#sign-section .card-subtitle,
#sign-section .section-subtitle,
#sign-section .subtitle,
#sign-section .desc {
  margin-top: 0;
  margin-bottom: 2px;
}

#sign-section .drag-drop-zone,
#sign-section .dropzone,
#sign-section .add-area,
#sign-section .add-dropzone {
  margin-top: 2px;
  margin-bottom: 8px;
}

#sign-section .card-header { margin-bottom: 2px; }
#sign-section .content-container { margin-top: 0; }
#sign-section .add-section { margin-top: 0; }

@media (min-width: 1024px) {
  #sign-section .card-subtitle,
  #sign-section .section-subtitle,
  #sign-section .subtitle,
  #sign-section .desc { margin-bottom: 2px; }
  #sign-section .content-container { margin-top: 0; }
  #sign-section .add-section { margin-top: 0; }
  #sign-section .drag-drop-zone,
  #sign-section .dropzone,
  #sign-section .add-area,
  #sign-section .add-dropzone { margin-top: 2px; margin-bottom: 8px; }
}

#sign-section .card-header { margin-bottom: 0 !important; padding-bottom: 0 !important; }
#sign-section .card-subtitle,
#sign-section .section-subtitle,
#sign-section .subtitle,
#sign-section .desc { margin-bottom: 0 !important; }
#sign-section .content-container { margin-top: 0 !important; padding-top: 0 !important; }
#sign-section .add-section { margin-top: 0 !important; padding-top: 0 !important; }
#sign-section .drag-drop-zone,
#sign-section .dropzone,
#sign-section .add-area,
#sign-section .add-dropzone { margin-top: 0 !important; }
#sign-section .content-container > *:first-child { margin-top: 0 !important; }

#sign-section .form-group,
#sign-section .form-row {
  margin-bottom: 12px;
}

#sign-section .form-hint,
#sign-section .form-error,
#sign-section .error-message {
  margin-top: 4px;
  line-height: 1.35;
}

@media (min-width: 1024px) {

  #sign-section .main-card { 
    padding: 18px 22px; 
  }
  #sign-section .drag-drop-zone,
  #sign-section .dropzone, 
  #sign-section .add-area, 
  #sign-section .add-dropzone { 
    margin-top: 6px; 
    margin-bottom: 10px; 
  }
}

html, body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
}
:root {
  --primary: #00B7A3;
  --primary-light: #00aaff;
  --primary-dark: #00e0b8;
  --primary-gradient: linear-gradient(135deg, #00B7A3 0%, #00E6AF 100%);
  --bg-primary: #DDF6FF;
  --bg-secondary: #F9FEFF;
  --bg-gradient: linear-gradient(180deg, #DCEFEA 0%, #E3EDF3 50%, #EEF3F8 100%);
  --bg-white: #ffffff;
  --bg-light: #F8FCFF;
  --bg-footer: #F2F2F2;
  --text-primary: #1a1a1a;
  --text-secondary: #333333;
  --text-muted: #666666;
  --text-light: #999999;
  --border-light: #e5e5e5;
  --border-focus: #00B7A3;
  --shadow-soft: 0 4px 20px rgba(0, 170, 255, 0.1);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.12);
  --font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 24px;
  --radius-xl: 999px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease;
  --z-base: 0;
  --z-card: 1;
  --z-glow: 2;
  --z-header: 10;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", "Inter", "SF Pro Display", sans-serif;
}
html {
  font-size: 14px;
  line-height: 1.7;
}
body {
  font-weight: 400;
  color: #0E1E25;
  background: linear-gradient(180deg, #E3EDF3 0%, #E3EDF3 50%, #EEF3F8 100%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  line-height: 1.6;
}
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  padding: 0;
}
.navbar.scrolled {
  background: rgba(255, 255, 255, 0.5);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.nav-container {
  position: relative;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand-name {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: #1a1a1a;
  margin: 0;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: all 0.2s ease;
}
.brand-name:hover {
  color: #00B7A3;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 16px;
}
.nav-link {
  font-family: "Poppins", "Inter", "SF Pro Display", sans-serif;
  font-size: 15px;
  font-weight: 500;
  color: #0E1E25;
  text-decoration: none;
  padding: 12px 20px;
  border-radius: 999px;
  transition: all 0.25s ease;
  position: relative;
  background: rgba(255, 255, 255, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.5);
  height: auto;
  display: flex;
  align-items: center;
}
.nav-link:hover {
  border-color: #00B7A3;
  box-shadow: 0 0 8px rgba(0, 183, 163, 0.12);
  background: rgba(255, 255, 255, 0.35);
  transform: translateY(-1px);
}
.nav-link:active {
  transform: translateY(0px);
}
.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
}
.nav-link:hover::after {
  width: 100%;
}
.nav-toggle {
  display: none;
}
.nav-switch.active {
  color: #00B7A3;
  font-weight: 600;
  background: rgba(0, 183, 163, 0.1);
  border-color: #00B7A3;
}
.nav-switch.active::after {
  width: 100%;
  background: linear-gradient(135deg, #00C1D4 0%, #00E6AF 100%);
}
.nav-link[data-tooltip] {
  position: relative;
}
.nav-link[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: linear-gradient(135deg, #00B7A3, #00E6AF);
  color: #ffffff;
  border: 1px solid transparent;
  box-shadow: 0 2px 5px rgba(0, 183, 163, 0.05);
  font-size: 11px;
  padding: 6px 14px;
  border-radius: 12px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  width: max-content;
  min-width: 80px;
  max-width: 220px;
}
.nav-link[data-tooltip]:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0px);
}
.hero-section {
  padding: 60px 0 16px;
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}
.hero-container {
  max-width: 1000px;
  width: 100%;
  padding: 0 var(--space-lg);
  margin: 32px auto 16px;
}
.main-card {
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(32px) saturate(200%);
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: 
    0 40px 80px rgba(0, 0, 0, 0.18),
    0 20px 40px rgba(0, 0, 0, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    inset 0 -1px 0 rgba(255, 255, 255, 0.25);
  padding: 56px;
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}
.card-header {
  text-align: center;
  margin-bottom: 0;
}
.card-title {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 36px;
  font-weight: 800;
  background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 50%, #1a1a1a 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
  line-height: 1.2;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.card-subtitle {
  font-size: 18px;
  color: #333333;
  font-weight: 500;
  line-height: 1.6;
  margin-bottom: 0;
  opacity: 0.9;
}
.content-container {
  display: flex;
  flex-direction: column;
  gap: 32px;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}
.add-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
}
.form-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}
.action-section {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin-top: 0;
}
.add-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.form-fields {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
}
.form-row {
  display: flex;
  gap: 16px;
  height: auto;
  width: 100%;
}
.form-field {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
}
.form-label {
  font-weight: 700;
  font-size: 14px;
  color: #1a1a1a;
  margin-bottom: 0;
  display: block;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  opacity: 0.9;
}
.drag-drop-zone {
  height: 120px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(20px);
  border: 2px dashed rgba(102, 126, 234, 0.5);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  color: #4a5568;
  font-size: 16px;
  font-weight: 500;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  position: relative;
  margin-bottom: 0;
  box-shadow: 
    0 8px 24px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
  width: 100%;
}
.drag-drop-zone:hover {
  border-color: #00B7A3;
  background: rgba(255, 255, 255, 0.22);
  box-shadow: 
    0 12px 32px rgba(30, 64, 175, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}
.drag-drop-content {
  text-align: center;
}
.drag-icon {
  color: #00B7A3;
  opacity: 0.95;
  margin-bottom: 16px;
  font-size: 28px;
  transition: all 0.3s ease;
}
.drag-icon:hover {
  color: #00B7A3;
  transform: scale(1.1);
}
.drag-text {
  font-size: 16px;
  color: #333333;
  line-height: 1.6;
  margin: 0;
  font-weight: 500;
}
.drag-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}
.file-slots {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  width: 100%;
}
.file-slot {
  height: 56px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(20px);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  box-shadow: 
    0 8px 24px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  margin-top: 0;
  color: #1a1a1a;
  font-size: 14px;
  font-weight: 500;
  position: relative;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  width: 100%;
}
.file-slot:hover {
  border-color: rgba(30, 64, 175, 0.5);
  background: rgba(255, 255, 255, 0.22);
  box-shadow: 
    0 12px 32px rgba(0, 0, 0, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}
.file-slot.is-valid {
  border-color: #00B7A3;
  background: rgba(30, 64, 175, 0.18);
}
.slot-icon {
  color: #00B7A3;
  opacity: 1;
  margin-right: 12px;
  flex-shrink: 0;
  font-size: 16px;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(30, 64, 175, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
  border-radius: 8px;
  border: 1px solid rgba(30, 64, 175, 0.2);
  transition: all 0.3s ease;
}
.slot-icon:hover {
  background: linear-gradient(135deg, rgba(30, 64, 175, 0.2) 0%, rgba(59, 130, 246, 0.2) 100%);
  border-color: rgba(30, 64, 175, 0.4);
  transform: scale(1.1);
}
.slot-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.slot-name {
  font-size: 14px;
  color: #1a1a1a;
  font-weight: 500;
}
.slot-type {
  font-size: 12px;
  color: #6B7280;
}
.slot-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.select-btn, .remove-btn {
  background: linear-gradient(135deg, rgba(30, 64, 175, 0.15) 0%, rgba(59, 130, 246, 0.15) 100%);
  border: 2px solid rgba(30, 64, 175, 0.4);
  color: #00B7A3;
  font-weight: 600;
  font-size: 12px;
  cursor: pointer;
  padding: 8px 16px;
  border-radius: 12px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}
.select-btn::before, .remove-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.4s;
}
.select-btn:hover::before, .remove-btn:hover::before {
  left: 100%;
}
.select-btn:hover, .remove-btn:hover {
  color: #00B7A3;
  background: linear-gradient(135deg, rgba(30, 64, 175, 0.25) 0%, rgba(59, 130, 246, 0.25) 100%);
  border-color: #00B7A3;
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 24px rgba(30, 64, 175, 0.3);
}
.remove-btn {
  color: #EF4444;
}
.file-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}
.file-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}
.file-icon {
  color: #888;
  opacity: 0.7;
  flex-shrink: 0;
  font-size: 0.9em;
}
.file-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.file-name {
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
}
.file-hint {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.file-action {
  display: flex;
  align-items: center;
}
.add-icon {
  font-size: 1.2rem;
  opacity: 0.6;
  transition: var(--transition);
}
.form-input {
  height: 48px;
  width: 100%;
  border-radius: 14px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(20px);
  padding: 0 18px;
  font-size: 15px;
  font-weight: 500;
  color: #1a1a1a;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
  box-shadow: 
    0 6px 20px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
}
.form-input:hover {
  border-color: rgba(30, 64, 175, 0.5);
  background: rgba(255, 255, 255, 0.22);
  box-shadow: 
    0 8px 24px rgba(0, 0, 0, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
  transform: translateY(-1px);
}
.form-input:focus {
  border: 2px solid #00B7A3;
  background: rgba(255, 255, 255, 0.25);
  box-shadow: 
    0 0 0 3px rgba(30, 64, 175, 0.2),
    0 8px 24px rgba(30, 64, 175, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
  transform: translateY(-2px);
}
.form-input::placeholder {
  color: rgba(26, 26, 26, 0.6);
  font-weight: 400;
}
.form-input.error {
  border-color: #EF4444;
}
.error-message {
  font-size: 12px;
  color: #EF4444;
  margin-top: 4px;
}
.form-actions {
  margin-top: 32px;
  text-align: center;
}
.btn-sign {
  background: linear-gradient(100deg, #00A08F 0%, #00D199 100%);
  color: #ffffff;
  text-shadow: 0 1px 2px rgba(0,0,0,0.25);
  font-weight: 700;
  font-size: 18px;
  border: none;
  cursor: pointer;
  border-radius: 24px;
  min-width: 240px;
  padding: 0 48px;
  box-shadow:
    0 16px 48px rgba(0,183,163,0.35),
    0 8px 24px rgba(0,183,163,0.25),
    inset 0 1px 0 rgba(255,255,255,0.6);
  transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
  height: 60px;
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-sign::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transition: left 0.6s;
}
.btn-sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.3s ease;
}
.btn-sign:hover::before {
  left: 100%;
}
.btn-sign:hover::after {
  width: 300px;
  height: 300px;
}
.btn-sign:hover:not(.disabled) { transform: none; box-shadow: none; }
.btn-sign:active {
  transform: none;
}
.btn-sign.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}
.btn-sign.loading {
  cursor: not-allowed;
  transform: none;
}

#sign-section .btn-sign::before,
#sign-section .btn-sign::after { content: none; }
#sign-section .btn-sign:hover { transform: none; box-shadow: none; }
.advantages-section {
  padding: 40px 0;
  position: relative;
  overflow: hidden;
}
.advantages-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.section-header {
  text-align: center;
  margin-bottom: 24px;
}
.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  background: linear-gradient(90deg, #00E6AF 0%, #00C1D4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}
h1, h2, h3 {
  font-family: "SF Pro Display", "Inter", sans-serif;
  letter-spacing: 0.3px;
}
p {
  font-size: 1rem;
  line-height: 1.7;
  color: #444;
  max-width: 700px;
  margin: 0 auto;
}
.section-title::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(0, 183, 163, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  z-index: -1;
  opacity: 0.6;
}
.section-subtitle {
  font-family: "Poppins", "Inter", "SF Pro Display", sans-serif;
  font-size: 17px;
  color: #51626C;
  line-height: 1.6;
  text-align: center;
  font-weight: 500;
}
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.advantage-card {
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 183, 163, 0.2);
  border-radius: 20px;
  box-shadow: 
    0 4px 16px rgba(0, 183, 163, 0.1),
    0 2px 8px rgba(0, 0, 0, 0.05);
  padding: 26px;
  text-align: center;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}
.advantage-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, #00B7A3, transparent);
  opacity: 0;
  transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.advantage-card:hover::before {
  opacity: 1;
}
.advantage-card:hover {
  transform: translateY(-4px) scale(1.02);
  border-color: rgba(0, 183, 163, 0.3);
  box-shadow: 
    0 16px 40px rgba(0, 183, 163, 0.15),
    0 6px 16px rgba(0, 183, 163, 0.1);
}
.advantage-icon {
  color: #00B7A3;
  margin: 0 auto 20px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 183, 163, 0.08), rgba(0, 230, 175, 0.08));
  border-radius: 12px;
  border: 1px solid rgba(0, 183, 163, 0.15);
}
.advantage-card:hover .advantage-icon {
  transform: scale(1.08) rotate(1.5deg);
  background: linear-gradient(135deg, rgba(0, 183, 163, 0.12), rgba(0, 230, 175, 0.12));
  border-color: rgba(0, 183, 163, 0.25);
  box-shadow: 0 0 20px rgba(0, 183, 163, 0.3);
}
.advantage-title {
  font-family: "Poppins", "Inter", "SF Pro Display", sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: #2C3E50;
  margin-bottom: 12px;
  line-height: 1.3;
}
.advantage-description {
  font-family: "Poppins", "Inter", "SF Pro Display", sans-serif;
  font-size: 14px;
  color: #444;
  line-height: 1.65;
  font-weight: 400;
}
.security-section {
  padding: 80px 0;
  background: var(--bg-light);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
}
.security-container {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  text-align: center;
}
.security-content {
  margin-top: var(--space-lg);
}
.security-content p {
  color: #6B7280;
  line-height: 1.8;
  margin-bottom: 18px;
  font-size: 14px;
}
.authority-statement {
  font-weight: var(--font-weight-semibold) !important;
  color: #00C1D4 !important;
  font-size: 1.1rem !important;
  margin-top: var(--space-lg) !important;
  text-align: center;
}
.footer {
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255, 255, 255, 0.3);
  padding: 40px 0;
  margin-top: 32px;
  color: #5F6B74;
}
.footer-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-right {
  display: flex;
  gap: 24px;
}
.footer-left p {
  font-family: "Poppins", "Inter", "SF Pro Display", sans-serif;
  font-size: 13px;
  color: #5F6B74;
  margin: 0;
  font-weight: 400;
}
.footer-link {
  font-family: "Poppins", "Inter", "SF Pro Display", sans-serif;
  font-size: 13px;
  color: #5F6B74;
  text-decoration: none;
  font-weight: 400;
  transition: all 0.2s ease;
}
.footer-link:hover {
  color: #00B7A3;
  text-shadow: 0 0 8px rgba(0, 183, 163, 0.2);
}
.help-steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 44px;
}
@media (max-width: 1024px) {
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .help-steps {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  .help-steps {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 768px) {
  .nav-container {
    padding: 0 var(--space-md);
  }
  .nav-right {
    gap: 12px;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-menu {
    position: static;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    padding: 0;
    border-radius: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }
  .nav-menu .nav-link {
    width: auto;
    justify-content: center;
    border-radius: 999px;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.48);
  }
  .nav-menu .nav-link:hover {
    background: rgba(255, 255, 255, 0.82);
  }
  .nav-menu .nav-switch.active {
    background: rgba(0, 183, 163, 0.16);
    color: #00B7A3;
    border-color: #00B7A3;
  }
  .advantages-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .footer-container {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
  .footer-right {
    flex-wrap: wrap;
    justify-content: center;
  }
}
@media (max-width: 480px) {
  .hero-section {
    padding: 92px 0 36px;
  }
  .hero-container {
    padding: 0 16px;
    margin: 16px auto 0;
  }
  .main-card {
    padding: 22px 16px;
    border-radius: 20px;
  }
  .card-title {
    font-size: 1.75rem;
  }
  .card-subtitle {
    font-size: 0.95rem;
  }
  .drag-drop-zone {
    display: none;
  }
  .drag-text {
    font-size: 12px;
  }
  .file-slot {
    padding: 0 12px;
  }
  .btn-sign {
    padding: 0.8rem 1.6rem;
    font-size: 0.95rem;
  }
  .floating-btn-group {
    right: 12px;
    bottom: 12px;
    gap: 10px;
  }
  .floating-btn {
    width: 80px;
    height: 40px;
    padding: 0 12px;
    font-size: 13px;
  }
  .floating-btn-icon {
    width: 22px;
    height: 22px;
  }
}
@media (max-width: 1024px) {
  .hero-container {
    margin: 24px auto 16px;
  }
  .main-card {
    max-width: 100%;
    margin: 24px auto;
    padding: 36px;
    gap: 28px;
  }
  .content-container {
    max-width: 100%;
    gap: 24px;
  }
  .card-title {
    font-size: 32px;
  }
  .card-subtitle {
    font-size: 16px;
  }
  .file-slots {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}
@media (max-width: 768px) {
  .hero-section {
    padding: 72px 0 40px;
    align-items: stretch;
  }
  .hero-container {
    padding: 0 var(--space-sm);
    margin: 8px auto 0;
  }
  .main-card {
    margin: 0;
    padding: 26px 20px;
    gap: 20px;
    border-radius: 24px;
  }
  .content-container {
    gap: 20px;
  }
  .card-title {
    font-size: 26px;
  }
  .card-subtitle {
    font-size: 15px;
  }
  .drag-drop-zone {
    height: 96px;
    padding: 18px;
  }
  .drag-icon {
    font-size: 22px;
    margin-bottom: 8px;
  }
  .drag-text {
    font-size: 13px;
    line-height: 1.4;
  }
  .file-slot {
    height: 52px;
    padding: 0 14px;
    font-size: 13px;
  }
  .form-row {
    flex-direction: column;
    gap: 12px;
  }
  .form-input {
    height: 44px;
    padding: 0 16px;
    font-size: 14px;
  }
  .btn-sign {
    width: 100%;
    min-width: 0;
    height: 54px;
    font-size: 16px;
    padding: 0 30px;
  }
  .select-btn, .remove-btn {
    padding: 6px 12px;
    font-size: 11px;
  }
}
@keyframes fadeInUp {
  from {
  opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.main-card {
  animation: fadeInUp 0.6s ease-out;
}
.advantage-card {
  animation: fadeInUp 0.6s ease-out;
}
.advantage-card:nth-child(1) {
  animation: fadeInUp 0.6s ease-out;
}
.advantage-card:nth-child(2) {
  animation: fadeInUp 0.6s ease-out;
  animation-delay: 0.1s;
}
.advantage-card:nth-child(3) {
  animation: fadeInUp 0.6s ease-out;
  animation-delay: 0.2s;
}
@media (prefers-reduced-motion: no-preference) {
  .advantage-card,
  .security-section,
  .help-step {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
  }
  .advantage-card.in-view,
  .security-section.in-view,
  .help-step.in-view {
    opacity: 1;
    transform: translateY(0);
  }
}
.help-section {
  padding: 40px 0;
}
.help-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}
.help-header {
  text-align: center;
  margin-bottom: 24px;
}
.help-title {
  font-family: "Poppins", "Inter", "SF Pro Display", sans-serif;
  font-size: 36px;
  font-weight: 800;
  background: linear-gradient(135deg, #00B7A3 0%, #00E6AF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  position: relative;
}
.help-title::after {
  content: "";
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 2px;
  background: linear-gradient(135deg, #00B7A3, #00E6AF);
  border-radius: 1px;
}
.help-subtitle {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 18px;
  color: #4E5E67;
  font-weight: 500;
  line-height: 1.6;
}
.help-content {
  margin-bottom: 40px;
}
.help-card {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 183, 163, 0.15);
  border-radius: 20px;
  box-shadow: 0 8px 24px rgba(0, 183, 163, 0.08);
  padding: 32px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.help-step {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 183, 163, 0.2);
  border-radius: 20px;
  box-shadow: 
    0 4px 16px rgba(0, 183, 163, 0.1),
    0 2px 8px rgba(0, 0, 0, 0.05);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}
.help-step:hover {
  transform: translateY(-4px) scale(1.02);
  border-color: rgba(0, 183, 163, 0.3);
  box-shadow: 
    0 16px 40px rgba(0, 183, 163, 0.15),
    0 6px 16px rgba(0, 183, 163, 0.1);
}
.step-number {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #00B7A3, #00E6AF);
  color: #ffffff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0, 183, 163, 0.2);
  animation: float 3s ease-in-out infinite;
}
@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-2px);
  }
}
.step-content h3 {
  font-family: "Poppins", "Inter", "SF Pro Display", sans-serif;
  font-size: 17px;
  font-weight: 600;
  color: #2C3E50;
  margin-bottom: 8px;
}
.step-content p {
  font-family: "Poppins", "Inter", "SF Pro Display", sans-serif;
  font-size: 13px;
  color: #444;
  line-height: 1.75;
  margin: 0;
}
.help-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.feature-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(16px);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}
.feature-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.1);
  border-color: rgba(30, 64, 175, 0.2);
}
.feature-icon {
  font-size: 32px;
  flex-shrink: 0;
}
.feature-text h4 {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 8px;
}
.feature-text p {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 14px;
  color: #333333;
  line-height: 1.6;
  margin: 0;
}
.help-tips h3 {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: #1a1a1a;
  text-align: center;
  margin-bottom: 32px;
}
.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.tip-card {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(16px);
  border-radius: 16px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: center;
}
.tip-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(30, 64, 175, 0.15);
  border-color: rgba(30, 64, 175, 0.2);
}
.tip-icon {
  font-size: 32px;
  margin-bottom: 16px;
}
.tip-card h4 {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 12px;
}
.tip-card p {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 14px;
  color: #333333;
  line-height: 1.6;
}
.floating-btn-group {
  position: fixed;
  right: 12px;
  bottom: 12px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  z-index: 1000;
}
.floating-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 44px;
  gap: 6px;
  background: linear-gradient(135deg, #00C1D4 0%, #00E6AF 100%);
  color: #fff;
  padding: 0 16px;
  border-radius: 24px;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  box-shadow: 0 4px 16px rgba(0, 193, 212, 0.3);
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}
.floating-btn.is-hidden {
  display: none !important;
}
.floating-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 193, 212, 0.4);
  color: #fff;
  text-decoration: none;
}
.floating-btn:active {
  transform: translateY(0);
}
.floating-btn-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}
.floating-btn-text {
  line-height: 1;
}
html {
  scroll-padding-top: 45px; 
}
@media (max-width: 768px) {
  html {
    scroll-padding-top: 85px;
  }
}
#guide-section {
  scroll-margin-top: 45px; 
}
.card {
  position: relative;
  z-index: var(--z-card);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(12px);
  overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(0, 230, 175, 0.25);
}
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle at 50% 0%, rgba(0,230,175,0.25), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: var(--z-glow);
}
.card:hover::after {
  opacity: 1;
}
@media (max-width: 768px) {
  .section-title {
    font-size: 1.6rem;
  }
  .card {
    padding: 22px 16px;
  }
}
.hero-section,
.help-section,
.advantages-section {
  background: transparent;
}
.main-card,
.help-card,
.advantage-card {
  background: rgba(255, 255, 255, 0.18) !important;
  backdrop-filter: blur(32px) saturate(200%) !important;
}

.status-section {
  width: 100%;
}

.status-card {
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.35) 0%, rgba(255, 255, 255, 0.18) 100%);
  backdrop-filter: blur(28px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 24px;
  box-shadow: 0 28px 70px -34px rgba(7, 33, 66, 0.45);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.status-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 36px 90px -36px rgba(7, 33, 66, 0.5);
}

.status-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.status-title {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.3px;
  color: rgba(10, 31, 54, 0.92);
}

.status-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 18px;
  border-radius: 18px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  background: rgba(255, 255, 255, 0.45);
  border: 1px solid rgba(0, 183, 163, 0.35);
  color: #00B7A3;
  text-transform: uppercase;
  box-shadow: 0 6px 16px -8px rgba(0, 183, 163, 0.45);
}

.status-tag.is-adding {
  border-color: rgba(0, 193, 212, 0.55);
  color: #00AEEF;
}

.status-tag.is-processing {
  border-color: rgba(255, 171, 64, 0.5);
  color: #D88A00;
}

.status-tag.is-completed {
  border-color: rgba(0, 183, 163, 0.6);
  color: #00B7A3;
}

.status-tag.is-failed {
  border-color: rgba(234, 76, 99, 0.4);
  color: #D63A57;
}

.status-progress {
  position: relative;
  padding: 12px 4px 0;
}

.status-line {
  position: absolute;
  top: 22px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg, rgba(0, 193, 212, 0.25), rgba(0, 230, 175, 0.25));
  border-radius: 999px;
}

.status-checkpoints {
  display: flex;
  justify-content: space-between;
  position: relative;
}

.status-checkpoint {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex: 1;
  text-align: center;
}

.checkpoint-node {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(0, 193, 212, 0.35);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 4px 10px rgba(0, 193, 212, 0.25);
  transition: all 0.3s ease;
}

.status-checkpoint.active .checkpoint-node {
  border-color: rgba(0, 193, 212, 0.8);
  background: linear-gradient(135deg, #00C1D4, #00E6AF);
  box-shadow: 0 10px 24px rgba(0, 193, 212, 0.45);
}

.status-checkpoint.completed .checkpoint-node {
  border-color: rgba(0, 193, 212, 0.65);
  background: linear-gradient(135deg, rgba(0, 193, 212, 0.85), rgba(0, 230, 175, 0.85));
  position: relative;
}

.status-checkpoint.completed .checkpoint-node::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
}

.checkpoint-label {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: rgba(10, 31, 54, 0.75);
}

.status-body {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 12px;
}

.status-intake {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.progress-ring {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s ease;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.45);
}

.progress-ring::after {
  content: "";
  position: absolute;
  inset: 14px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

.ring-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.ring-value {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 34px;
  letter-spacing: 0.6px;
}

.ring-label {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  color: rgba(10, 31, 54, 0.62);
}

.status-processing {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.status-hint {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 14px;
}

.status-complete,
.status-failed {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
}

.status-failed .btn-tertiary {
  align-self: center;
}

.status-alert {
  border-radius: 16px;
  padding: 12px 18px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
}

.status-alert.error {
  background: rgba(234, 76, 99, 0.12);
  border: 1px solid rgba(234, 76, 99, 0.28);
  color: #B8203E;
}

.progress-track {
  width: 100%;
  height: 5px;
  border-radius: 999px;
  background: rgba(0, 183, 163, 0.18);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(135deg, #00C1D4 0%, #0084FF 100%);
  border-radius: inherit;
  transition: width 0.3s ease;
  width: 0;
}

.status-note {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 15px;
  color: rgba(15, 36, 61, 0.9);
}

.status-note.success {
  color: #00B7A3;
}

.status-note.error {
  color: #D63A57;
}

.status-loading {
  display: flex;
  align-items: center;
  gap: 12px;
}

.spinner {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(0, 183, 163, 0.28);
  border-top-color: #00B7A3;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.status-log {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 14px;
  line-height: 1.65;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 12px 0 4px;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  padding: 12px 24px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-download.primary {
  background: linear-gradient(135deg, #00C1D4 0%, #00E6AF 100%);
  color: #ffffff;
  box-shadow: 0 18px 32px -18px rgba(0, 193, 212, 0.55);
}

.btn-download.secondary {
  background: rgba(0, 193, 212, 0.16);
  color: #00AEEF;
  border: 1px solid rgba(0, 193, 212, 0.32);
}

.btn-download:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 44px -22px rgba(0, 193, 212, 0.55);
}

.btn-tertiary {
  background: transparent;
  border: 1px solid rgba(0, 174, 239, 0.4);
  color: #00AEEF;
  border-radius: 16px;
  padding: 10px 20px;
  font-weight: 600;
  font-size: 13px;
  transition: all 0.2s ease;
  cursor: pointer;
  text-decoration: none;
  align-self: flex-start;
}

.btn-tertiary:hover {
  background: rgba(0, 193, 212, 0.12);
}

.status-qrcode {
  width: 140px;
  height: 140px;
  margin: 8px auto 4px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}

.status-qrcode canvas {
  width: 100% !important;
  height: 100% !important;
}

@media (max-width: 768px) {
  .status-card {
    padding: 22px;
  }

  .status-line {
    left: 12%;
    right: 12%;
  }

  .status-checkpoints {
    gap: 24px;
  }

  .checkpoint-label {
    font-size: 10px;
  }

  .progress-ring {
    width: 140px;
    height: 140px;
  }

  .download-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-tertiary {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .floating-btn-group {
    right: 12px;
    bottom: 12px;
    transform: none;
    gap: 8px;
  }
  .floating-btn {
    width: 72px;
    height: 40px;
    padding: 0 12px;
    font-size: 13px;
  }
  .floating-btn-icon {
    width: 20px;
    height: 20px;
  }
}