/* ============================================================
   GENTLE-CODE - 定义当代男性的穿搭美学
   主样式文件 | CSS前缀: nt- (New Type)
   设计风格: 都市型男杂志风（炭黑+银灰）
   ============================================================ */

/* === CSS Reset & Base (Mobile-First) === */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --nt-charcoal: #1A1A1A;
  --nt-charcoal-light: #2A2A2A;
  --nt-charcoal-mid: #333333;
  --nt-silver: #A9A9A9;
  --nt-silver-light: #C8C8C8;
  --nt-deep-blue: #003366;
  --nt-deep-blue-light: #004488;
  --nt-white: #F5F5F5;
  --nt-pure-white: #FFFFFF;
  --nt-gold: #C9A96E;
  --nt-bg-dark: #111111;
  --nt-bg-section: #1E1E1E;
  --nt-text-primary: #F0F0F0;
  --nt-text-secondary: #A9A9A9;
  --nt-text-muted: #777777;
  --nt-border: #333333;
  --nt-serif: 'Playfair Display', 'Georgia', 'Times New Roman', serif;
  --nt-sans: 'Lato', 'Helvetica Neue', 'Arial', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --nt-transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --nt-shadow: 0 4px 24px rgba(0,0,0,0.4);
  --nt-shadow-hover: 0 8px 40px rgba(0,0,0,0.6);
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--nt-sans);
  background-color: var(--nt-bg-dark);
  color: var(--nt-text-primary);
  line-height: 1.8;
  overflow-x: hidden;
}

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

a {
  color: var(--nt-silver-light);
  text-decoration: none;
  transition: color var(--nt-transition);
}

a:hover {
  color: var(--nt-gold);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--nt-serif);
  font-weight: 700;
  line-height: 1.3;
  color: var(--nt-pure-white);
}

h1 { font-size: 1.8rem; margin-bottom: 1rem; }
h2 { font-size: 1.5rem; margin-bottom: 0.8rem; }
h3 { font-size: 1.2rem; margin-bottom: 0.6rem; }

p {
  margin-bottom: 1.2rem;
  color: var(--nt-text-secondary);
}

/* === Container === */
.nt-container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 16px;
}

/* === Navigation === */
.nt-header {
  position: relative;
  width: 100%;
  z-index: 100;
  background: rgba(26, 26, 26, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--nt-border);
}

.nt-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  max-width: 1440px;
  margin: 0 auto;
}

.nt-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nt-logo-img {
  height: 36px;
  width: auto;
}

.nt-logo-text {
  font-family: var(--nt-serif);
  font-size: 1.2rem;
  color: var(--nt-pure-white);
  letter-spacing: 3px;
  text-transform: uppercase;
  font-weight: 700;
}

.nt-nav-links {
  display: none;
  list-style: none;
  gap: 0;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--nt-charcoal);
  border-bottom: 1px solid var(--nt-border);
  padding: 16px 0;
}

.nt-nav-links.nt-nav-active {
  display: flex;
}

.nt-nav-link {
  position: relative;
  font-size: 0.9rem;
  letter-spacing: 1px;
  color: var(--nt-silver-light);
  padding: 10px 24px;
  display: block;
  transition: color var(--nt-transition);
}

.nt-nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 24px;
  right: 24px;
  height: 1px;
  background: var(--nt-silver);
  transform: scaleX(0);
  transition: transform var(--nt-transition);
}

.nt-nav-link:hover {
  color: var(--nt-pure-white);
}

.nt-nav-link:hover::after {
  transform: scaleX(1);
}

.nt-nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nt-search-box {
  display: none;
  position: relative;
}

.nt-search-input {
  background: var(--nt-charcoal-mid);
  border: 1px solid var(--nt-border);
  color: var(--nt-text-primary);
  padding: 8px 36px 8px 14px;
  border-radius: 4px;
  font-size: 0.85rem;
  width: 200px;
  outline: none;
  transition: border-color var(--nt-transition);
}

.nt-search-input:focus {
  border-color: var(--nt-deep-blue);
}

.nt-search-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--nt-silver);
  cursor: pointer;
  font-size: 0.9rem;
}

.nt-login-btn {
  display: none;
  padding: 7px 18px;
  background: transparent;
  border: 1px solid var(--nt-silver);
  color: var(--nt-silver-light);
  font-size: 0.8rem;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all var(--nt-transition);
  font-family: var(--nt-sans);
}

.nt-login-btn:hover {
  background: var(--nt-silver);
  color: var(--nt-charcoal);
}

/* Hamburger Menu */
.nt-hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nt-hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--nt-silver-light);
  transition: all var(--nt-transition);
}

.nt-hamburger.nt-active .nt-hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nt-hamburger.nt-active .nt-hamburger-line:nth-child(2) {
  opacity: 0;
}

.nt-hamburger.nt-active .nt-hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* === Hero Video Section === */
.nt-hero {
  position: relative;
  width: 100%;
  height: 70vh;
  min-height: 400px;
  overflow: hidden;
}

.nt-hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nt-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(17,17,17,0.3) 0%, rgba(17,17,17,0.7) 70%, rgba(17,17,17,1) 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 20px;
}

.nt-hero-title {
  font-family: var(--nt-serif);
  font-size: 2rem;
  color: var(--nt-pure-white);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 12px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.nt-hero-subtitle {
  font-size: 1rem;
  color: var(--nt-silver-light);
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.nt-btn-primary {
  display: inline-block;
  padding: 14px 36px;
  background: transparent;
  border: 1px solid var(--nt-silver);
  color: var(--nt-pure-white);
  font-family: var(--nt-sans);
  font-size: 0.85rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--nt-transition);
}

.nt-btn-primary:hover {
  background: var(--nt-pure-white);
  color: var(--nt-charcoal);
  border-color: var(--nt-pure-white);
}

/* === Section Common === */
.nt-section {
  padding: 48px 0;
}

.nt-section-header {
  text-align: center;
  margin-bottom: 36px;
}

.nt-section-title {
  font-family: var(--nt-serif);
  font-size: 1.6rem;
  color: var(--nt-pure-white);
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.nt-section-line {
  width: 60px;
  height: 1px;
  background: var(--nt-gold);
  margin: 0 auto 16px;
}

.nt-section-desc {
  font-size: 0.9rem;
  color: var(--nt-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

.nt-section-alt {
  background: var(--nt-bg-section);
}

/* === Trend Cards === */
.nt-trend-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.nt-trend-card {
  background: var(--nt-charcoal-light);
  border-radius: 4px;
  overflow: hidden;
  transition: transform var(--nt-transition), box-shadow var(--nt-transition);
}

.nt-trend-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--nt-shadow-hover);
}

.nt-trend-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/4;
}

.nt-trend-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.nt-trend-card:hover .nt-trend-img-wrap img {
  transform: scale(1.05);
}

.nt-trend-content {
  padding: 20px;
}

.nt-trend-tag {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--nt-gold);
  margin-bottom: 8px;
}

.nt-trend-title {
  font-family: var(--nt-serif);
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.nt-trend-text {
  font-size: 0.85rem;
  color: var(--nt-text-muted);
  line-height: 1.7;
}

/* === Street Snap Gallery === */
.nt-gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.nt-gallery-item {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
}

.nt-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.nt-gallery-item:hover img {
  transform: scale(1.08);
}

.nt-gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  transition: opacity var(--nt-transition);
}

.nt-gallery-city {
  font-family: var(--nt-serif);
  font-size: 1rem;
  color: var(--nt-pure-white);
  margin-bottom: 4px;
}

.nt-gallery-play {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--nt-gold);
  letter-spacing: 1px;
}

/* === Brand Show === */
.nt-brand-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.nt-brand-card {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.nt-brand-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nt-brand-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
}

.nt-brand-name {
  font-family: var(--nt-serif);
  font-size: 1.1rem;
  color: var(--nt-pure-white);
  margin-bottom: 4px;
}

.nt-brand-desc {
  font-size: 0.8rem;
  color: var(--nt-silver);
}

/* === Editorial Cards === */
.nt-editorial-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.nt-editorial-card {
  display: flex;
  flex-direction: column;
  background: var(--nt-charcoal-light);
  border-radius: 4px;
  overflow: hidden;
  transition: transform var(--nt-transition);
}

.nt-editorial-card:hover {
  transform: translateY(-3px);
}

.nt-editorial-img {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.nt-editorial-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nt-editorial-body {
  padding: 20px;
}

.nt-editorial-cat {
  font-size: 0.7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--nt-deep-blue-light);
  margin-bottom: 8px;
}

.nt-editorial-title {
  font-family: var(--nt-serif);
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.nt-editorial-excerpt {
  font-size: 0.85rem;
  color: var(--nt-text-muted);
  line-height: 1.7;
}

/* === Makeover Section === */
.nt-makeover-slider {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 16px;
}

.nt-makeover-item {
  min-width: 280px;
  scroll-snap-align: start;
  background: var(--nt-charcoal-light);
  border-radius: 4px;
  overflow: hidden;
}

.nt-makeover-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}

.nt-makeover-img-wrap {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
}

.nt-makeover-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nt-makeover-label {
  position: absolute;
  bottom: 8px;
  left: 8px;
  padding: 4px 10px;
  font-size: 0.65rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  background: rgba(0,0,0,0.7);
  color: var(--nt-pure-white);
  border-radius: 2px;
}

.nt-makeover-body {
  padding: 16px;
}

.nt-makeover-name {
  font-family: var(--nt-serif);
  font-size: 1rem;
  margin-bottom: 6px;
}

.nt-makeover-review {
  font-size: 0.8rem;
  color: var(--nt-text-muted);
  line-height: 1.6;
  font-style: italic;
}

/* === Academy Section === */
.nt-academy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.nt-academy-card {
  background: var(--nt-charcoal-light);
  border-radius: 4px;
  padding: 24px;
  border-left: 3px solid var(--nt-deep-blue);
  transition: transform var(--nt-transition);
}

.nt-academy-card:hover {
  transform: translateX(4px);
}

.nt-academy-level {
  font-size: 0.65rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--nt-gold);
  margin-bottom: 8px;
}

.nt-academy-title {
  font-family: var(--nt-serif);
  font-size: 1rem;
  margin-bottom: 6px;
}

.nt-academy-meta {
  font-size: 0.8rem;
  color: var(--nt-text-muted);
}

/* === Lifestyle Section === */
.nt-lifestyle-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.nt-lifestyle-card {
  display: flex;
  gap: 16px;
  background: var(--nt-charcoal-light);
  border-radius: 4px;
  overflow: hidden;
  transition: transform var(--nt-transition);
}

.nt-lifestyle-card:hover {
  transform: translateY(-3px);
}

.nt-lifestyle-img {
  width: 120px;
  min-height: 120px;
  flex-shrink: 0;
  overflow: hidden;
}

.nt-lifestyle-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nt-lifestyle-body {
  padding: 16px 16px 16px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.nt-lifestyle-cat {
  font-size: 0.65rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--nt-deep-blue-light);
  margin-bottom: 4px;
}

.nt-lifestyle-title {
  font-family: var(--nt-serif);
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.nt-lifestyle-text {
  font-size: 0.8rem;
  color: var(--nt-text-muted);
  line-height: 1.6;
}

/* === Partner Brands === */
.nt-partners {
  padding: 48px 0;
  text-align: center;
}

.nt-partner-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  align-items: center;
}

.nt-partner-item {
  padding: 16px 24px;
  border: 1px solid var(--nt-border);
  border-radius: 4px;
  font-family: var(--nt-serif);
  font-size: 0.9rem;
  color: var(--nt-silver);
  letter-spacing: 2px;
  transition: all var(--nt-transition);
}

.nt-partner-item:hover {
  border-color: var(--nt-gold);
  color: var(--nt-gold);
}

/* === Footer === */
.nt-footer {
  background: var(--nt-charcoal);
  border-top: 1px solid var(--nt-border);
  padding: 48px 0 24px;
}

.nt-footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.nt-footer-col-title {
  font-family: var(--nt-serif);
  font-size: 0.9rem;
  color: var(--nt-pure-white);
  letter-spacing: 2px;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.nt-footer-links {
  list-style: none;
}

.nt-footer-links li {
  margin-bottom: 8px;
}

.nt-footer-links a {
  font-size: 0.85rem;
  color: var(--nt-text-muted);
  transition: color var(--nt-transition);
}

.nt-footer-links a:hover {
  color: var(--nt-gold);
}

.nt-footer-honors {
  list-style: none;
}

.nt-footer-honors li {
  font-size: 0.8rem;
  color: var(--nt-text-muted);
  margin-bottom: 8px;
  line-height: 1.6;
}

.nt-footer-social {
  display: flex;
  gap: 16px;
}

.nt-footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--nt-border);
  border-radius: 50%;
  color: var(--nt-silver);
  font-size: 0.8rem;
  transition: all var(--nt-transition);
}

.nt-footer-social a:hover {
  border-color: var(--nt-gold);
  color: var(--nt-gold);
}

.nt-footer-bottom {
  border-top: 1px solid var(--nt-border);
  padding-top: 20px;
  text-align: center;
}

.nt-footer-copyright {
  font-size: 0.75rem;
  color: var(--nt-text-muted);
  margin-bottom: 6px;
  line-height: 1.8;
}

.nt-footer-license {
  font-size: 0.7rem;
  color: var(--nt-text-muted);
  letter-spacing: 1px;
}

/* === Video Modal === */
.nt-video-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.92);
  z-index: 9999;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.nt-video-modal.nt-modal-active {
  display: flex;
}

.nt-modal-content {
  position: relative;
  width: 100%;
  max-width: 900px;
}

.nt-modal-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: var(--nt-pure-white);
  font-size: 1.5rem;
  cursor: pointer;
}

.nt-modal-video {
  width: 100%;
  border-radius: 4px;
}

/* === Inner Page Styles === */
.nt-page-hero {
  position: relative;
  height: 40vh;
  min-height: 280px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nt-page-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.4);
}

.nt-page-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 20px;
}

.nt-page-hero-title {
  font-family: var(--nt-serif);
  font-size: 2rem;
  color: var(--nt-pure-white);
  letter-spacing: 3px;
  margin-bottom: 12px;
}

.nt-page-hero-desc {
  font-size: 0.95rem;
  color: var(--nt-silver-light);
  max-width: 600px;
  margin: 0 auto;
}

/* === Breadcrumb === */
.nt-breadcrumb {
  padding: 16px 0;
  border-bottom: 1px solid var(--nt-border);
}

.nt-breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  font-size: 0.8rem;
}

.nt-breadcrumb-list li::after {
  content: '/';
  margin-left: 8px;
  color: var(--nt-text-muted);
}

.nt-breadcrumb-list li:last-child::after {
  display: none;
}

.nt-breadcrumb-list a {
  color: var(--nt-text-muted);
}

.nt-breadcrumb-list a:hover {
  color: var(--nt-gold);
}

.nt-breadcrumb-current {
  color: var(--nt-silver-light);
}

/* === Article Content === */
.nt-article {
  padding: 40px 0;
}

.nt-article-body {
  max-width: 800px;
  margin: 0 auto;
}

.nt-article-body p {
  font-size: 0.95rem;
  line-height: 2;
  margin-bottom: 1.5rem;
  color: var(--nt-text-secondary);
}

.nt-article-body h2 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--nt-border);
}

.nt-article-body h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.8rem;
}

.nt-article-img {
  margin: 2rem 0;
  border-radius: 4px;
  overflow: hidden;
}

.nt-article-img img {
  width: 100%;
}

/* === Video Grid (Inner Pages) === */
.nt-video-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.nt-video-card {
  background: var(--nt-charcoal-light);
  border-radius: 4px;
  overflow: hidden;
  transition: transform var(--nt-transition);
}

.nt-video-card:hover {
  transform: translateY(-3px);
}

.nt-video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.nt-video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nt-video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  background: rgba(0,0,0,0.6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(255,255,255,0.5);
  transition: all var(--nt-transition);
}

.nt-video-play-btn::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent var(--nt-pure-white);
  margin-left: 4px;
}

.nt-video-card:hover .nt-video-play-btn {
  background: rgba(0,51,102,0.8);
  border-color: var(--nt-pure-white);
}

.nt-video-body {
  padding: 16px;
}

.nt-video-title {
  font-family: var(--nt-serif);
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.nt-video-meta {
  font-size: 0.75rem;
  color: var(--nt-text-muted);
}

/* === Form Styles (Style Advisor) === */
.nt-form-section {
  padding: 48px 0;
}

.nt-form-steps {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 36px;
}

.nt-form-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.nt-step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--nt-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--nt-serif);
  font-size: 0.9rem;
  color: var(--nt-text-muted);
  transition: all var(--nt-transition);
}

.nt-form-step.nt-step-active .nt-step-number {
  border-color: var(--nt-gold);
  color: var(--nt-gold);
  background: rgba(201,169,110,0.1);
}

.nt-step-label {
  font-size: 0.7rem;
  letter-spacing: 1px;
  color: var(--nt-text-muted);
}

.nt-form-step.nt-step-active .nt-step-label {
  color: var(--nt-gold);
}

.nt-form-panel {
  display: none;
  max-width: 600px;
  margin: 0 auto;
}

.nt-form-panel.nt-panel-active {
  display: block;
}

.nt-form-group {
  margin-bottom: 20px;
}

.nt-form-label {
  display: block;
  font-size: 0.85rem;
  color: var(--nt-silver-light);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.nt-form-input,
.nt-form-select {
  width: 100%;
  padding: 12px 16px;
  background: var(--nt-charcoal-mid);
  border: 1px solid var(--nt-border);
  color: var(--nt-text-primary);
  font-size: 0.9rem;
  font-family: var(--nt-sans);
  border-radius: 4px;
  outline: none;
  transition: border-color var(--nt-transition);
}

.nt-form-input:focus,
.nt-form-select:focus {
  border-color: var(--nt-deep-blue);
}

.nt-checkbox-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.nt-checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.nt-checkbox-item input[type="checkbox"] {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 1px solid var(--nt-border);
  border-radius: 2px;
  background: var(--nt-charcoal-mid);
  cursor: pointer;
  position: relative;
}

.nt-checkbox-item input[type="checkbox"]:checked {
  background: var(--nt-deep-blue);
  border-color: var(--nt-deep-blue);
}

.nt-checkbox-item input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 5px;
  width: 5px;
  height: 9px;
  border: solid var(--nt-pure-white);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.nt-checkbox-item span {
  font-size: 0.85rem;
  color: var(--nt-silver);
}

.nt-form-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 24px;
}

.nt-btn-secondary {
  padding: 12px 28px;
  background: transparent;
  border: 1px solid var(--nt-border);
  color: var(--nt-silver);
  font-family: var(--nt-sans);
  font-size: 0.85rem;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all var(--nt-transition);
}

.nt-btn-secondary:hover {
  border-color: var(--nt-silver);
  color: var(--nt-pure-white);
}

/* === AI Analysis Animation === */
.nt-analysis-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(17,17,17,0.95);
  z-index: 9999;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 24px;
}

.nt-analysis-overlay.nt-analysis-active {
  display: flex;
}

.nt-analysis-spinner {
  width: 60px;
  height: 60px;
  border: 2px solid var(--nt-border);
  border-top-color: var(--nt-gold);
  border-radius: 50%;
  animation: nt-spin 1s linear infinite;
}

@keyframes nt-spin {
  to { transform: rotate(360deg); }
}

.nt-analysis-text {
  font-family: var(--nt-serif);
  font-size: 1.1rem;
  color: var(--nt-silver-light);
  letter-spacing: 2px;
}

.nt-analysis-progress {
  width: 200px;
  height: 2px;
  background: var(--nt-border);
  border-radius: 1px;
  overflow: hidden;
}

.nt-analysis-bar {
  height: 100%;
  background: var(--nt-gold);
  width: 0;
  animation: nt-progress 3s ease-in-out forwards;
}

@keyframes nt-progress {
  0% { width: 0; }
  30% { width: 35%; }
  60% { width: 70%; }
  90% { width: 92%; }
  100% { width: 100%; }
}

/* === APP Download Page === */
.nt-app-hero {
  padding: 60px 0;
  text-align: center;
}

.nt-app-mockup {
  max-width: 280px;
  margin: 0 auto 32px;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--nt-shadow);
}

.nt-app-mockup img {
  width: 100%;
}

.nt-app-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  margin-top: 24px;
}

.nt-app-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border: 1px solid var(--nt-silver);
  border-radius: 8px;
  color: var(--nt-pure-white);
  font-size: 0.85rem;
  letter-spacing: 1px;
  transition: all var(--nt-transition);
  min-width: 220px;
  justify-content: center;
}

.nt-app-btn:hover {
  background: var(--nt-pure-white);
  color: var(--nt-charcoal);
  border-color: var(--nt-pure-white);
  transform: translateY(-2px);
}

.nt-app-btn-icon {
  font-size: 1.2rem;
}

.nt-app-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 48px 0;
}

.nt-app-feature {
  text-align: center;
  padding: 24px;
  background: var(--nt-charcoal-light);
  border-radius: 4px;
}

.nt-app-feature-icon {
  font-size: 2rem;
  margin-bottom: 12px;
  color: var(--nt-gold);
}

.nt-app-feature-title {
  font-family: var(--nt-serif);
  font-size: 1rem;
  margin-bottom: 8px;
}

.nt-app-feature-text {
  font-size: 0.85rem;
  color: var(--nt-text-muted);
}

/* === FAQ Section === */
.nt-faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.nt-faq-item {
  border-bottom: 1px solid var(--nt-border);
}

.nt-faq-question {
  width: 100%;
  padding: 18px 0;
  background: none;
  border: none;
  color: var(--nt-pure-white);
  font-family: var(--nt-serif);
  font-size: 0.95rem;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color var(--nt-transition);
}

.nt-faq-question:hover {
  color: var(--nt-gold);
}

.nt-faq-icon {
  font-size: 1.2rem;
  transition: transform var(--nt-transition);
}

.nt-faq-item.nt-faq-open .nt-faq-icon {
  transform: rotate(45deg);
}

.nt-faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.nt-faq-answer-inner {
  padding: 0 0 18px;
  font-size: 0.9rem;
  color: var(--nt-text-muted);
  line-height: 1.8;
}

/* === Sidebar (Inner Pages) === */
.nt-sidebar {
  padding: 24px 0;
}

.nt-sidebar-widget {
  background: var(--nt-charcoal-light);
  border-radius: 4px;
  padding: 20px;
  margin-bottom: 20px;
}

.nt-sidebar-title {
  font-family: var(--nt-serif);
  font-size: 0.9rem;
  color: var(--nt-pure-white);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--nt-border);
}

.nt-sidebar-links {
  list-style: none;
}

.nt-sidebar-links li {
  margin-bottom: 10px;
}

.nt-sidebar-links a {
  font-size: 0.85rem;
  color: var(--nt-text-muted);
}

.nt-sidebar-links a:hover {
  color: var(--nt-gold);
}

/* === Result Page === */
.nt-result-section {
  padding: 48px 0;
}

.nt-result-card {
  background: var(--nt-charcoal-light);
  border-radius: 4px;
  padding: 24px;
  margin-bottom: 20px;
  border-left: 3px solid var(--nt-gold);
}

.nt-result-title {
  font-family: var(--nt-serif);
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.nt-result-text {
  font-size: 0.9rem;
  color: var(--nt-text-secondary);
  line-height: 1.8;
}

/* === Responsive: 768px === */
@media (min-width: 768px) {
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.8rem; }
  h3 { font-size: 1.4rem; }

  .nt-container {
    padding: 0 24px;
  }

  .nt-hero {
    height: 80vh;
  }

  .nt-hero-title {
    font-size: 2.8rem;
    letter-spacing: 6px;
  }

  .nt-hero-subtitle {
    font-size: 1.1rem;
  }

  .nt-trend-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nt-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nt-brand-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nt-editorial-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nt-academy-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nt-lifestyle-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nt-video-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nt-footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nt-app-features {
    grid-template-columns: repeat(2, 1fr);
  }

  .nt-app-buttons {
    flex-direction: row;
    justify-content: center;
  }

  .nt-page-hero-title {
    font-size: 2.5rem;
  }

  .nt-section-title {
    font-size: 1.8rem;
  }
}

/* === Responsive: 1024px === */
@media (min-width: 1024px) {
  .nt-nav {
    padding: 14px 32px;
  }

  .nt-hamburger {
    display: none;
  }

  .nt-nav-links {
    display: flex;
    flex-direction: row;
    position: static;
    background: transparent;
    border: none;
    padding: 0;
    gap: 4px;
  }

  .nt-nav-link {
    padding: 8px 14px;
  }

  .nt-nav-link::after {
    left: 14px;
    right: 14px;
  }

  .nt-search-box {
    display: block;
  }

  .nt-login-btn {
    display: inline-block;
  }

  .nt-trend-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .nt-gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .nt-editorial-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nt-academy-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .nt-lifestyle-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nt-video-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .nt-footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .nt-app-features {
    grid-template-columns: repeat(4, 1fr);
  }

  .nt-section {
    padding: 64px 0;
  }

  .nt-hero {
    height: 90vh;
  }

  .nt-hero-title {
    font-size: 3.2rem;
    letter-spacing: 8px;
  }
}

/* === Responsive: 1440px === */
@media (min-width: 1440px) {
  .nt-container {
    padding: 0 48px;
  }

  .nt-hero-title {
    font-size: 3.8rem;
    letter-spacing: 10px;
  }

  .nt-section {
    padding: 80px 0;
  }

  .nt-section-title {
    font-size: 2rem;
  }

  .nt-page-hero-title {
    font-size: 3rem;
  }
}

/* === Utility Classes === */
.nt-text-center { text-align: center; }
.nt-text-gold { color: var(--nt-gold); }
.nt-mt-1 { margin-top: 8px; }
.nt-mt-2 { margin-top: 16px; }
.nt-mt-3 { margin-top: 24px; }
.nt-mb-1 { margin-bottom: 8px; }
.nt-mb-2 { margin-bottom: 16px; }
.nt-mb-3 { margin-bottom: 24px; }
.nt-hidden { display: none; }

/* === Page Layout with Sidebar === */
.nt-page-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

@media (min-width: 1024px) {
  .nt-page-layout {
    grid-template-columns: 1fr 300px;
  }
}

/* === Inner page content grid === */
.nt-content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 40px 0;
}

@media (min-width: 768px) {
  .nt-content-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .nt-content-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}