/* ==========================================================================
   陳十一作品网站 · 全局样式表 (css/style.css)
   ========================================================================== */

:root {
  --bg-main: #0A0E1A;
  --bg-panel: #121828;
  --text-main: #EDEAE2;
  --text-muted: #9AA3B2;
  --accent-warm: #E8A33D;
  --accent-cyan: #5B8DB8;
  --border-subtle: rgba(232, 163, 61, 0.22);
  --border-card: rgba(154, 163, 178, 0.14);
  --font-serif: "Songti SC", "STSong", "SimSun", serif;
  --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --max-width: 1440px;
}

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

html {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--text-main);
  text-decoration: none;
  transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
}

a:hover {
  color: var(--accent-cyan);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 0;
}

/* 布局容器：最大 1440px，移动端边距 16px */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: 16px;
  padding-right: 16px;
}

@media (min-width: 768px) {
  .container {
    padding-left: 40px;
    padding-right: 40px;
  }
}

/* ==========================================================================
   顶部导航栏
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(10, 14, 26, 0.94);
  border-bottom: 1px solid var(--border-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 12px;
}

.brand-logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-main);
  white-space: nowrap;
}

.brand-logo span {
  color: var(--accent-warm);
  font-size: 0.75rem;
  margin-left: 6px;
  letter-spacing: 0.14em;
  font-family: var(--font-sans);
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

@media (min-width: 768px) {
  .main-nav {
    gap: 32px;
  }
}

.main-nav a {
  font-size: 0.9375rem;
  color: var(--text-muted);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.main-nav a:hover {
  color: var(--accent-cyan);
}

.main-nav a.active {
  color: var(--text-main);
  border-bottom-color: var(--accent-warm);
}

/* ==========================================================================
   ELEVEN 杂志风章节间隔区标题（严格只出现在章节间隔区，绝不压图）
   ========================================================================== */
.section-divider {
  padding: 72px 0 36px;
  border-top: 1px solid var(--border-subtle);
  margin-top: 48px;
}

.section-divider--first {
  margin-top: 24px;
}

.eleven-eyebrow {
  font-family: var(--font-serif);
  font-size: 0.8125rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent-warm);
  margin-bottom: 10px;
  display: block;
}

.eleven-title {
  font-family: var(--font-serif);
  font-size: 1.85rem;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: 0.06em;
  line-height: 1.3;
}

@media (min-width: 768px) {
  .eleven-title {
    font-size: 2.4rem;
  }
}

.section-lead {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 0.975rem;
  max-width: 680px;
}

/* ==========================================================================
   按钮组件
   ========================================================================== */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.25s ease;
  font-weight: 500;
}

.btn-primary {
  background-color: var(--accent-warm);
  color: #0A0E1A;
  border: 1px solid var(--accent-warm);
}

.btn-primary:hover {
  background-color: #f3b352;
  border-color: #f3b352;
  color: #0A0E1A;
}

.btn-outline {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--accent-warm);
}

.btn-outline:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

/* ==========================================================================
   图片淡入动效（IntersectionObserver 触发，克制过渡）
   ========================================================================== */
.fade-img {
  opacity: 0;
  transition: opacity 0.6s ease-out;
  background-color: var(--bg-panel);
}

.fade-img.is-visible {
  opacity: 1;
}

/* ==========================================================================
   首页 1. Hero 区（全屏定调大图 + 下方独立文字区，严禁文字压图）
   ========================================================================== */
.hero-section {
  padding-top: 16px;
  padding-bottom: 32px;
}

.hero-media-frame {
  width: 100%;
  background-color: var(--bg-panel);
  overflow: hidden;
  cursor: zoom-in;
}

.hero-media-frame img {
  width: 100%;
  height: auto;
  display: block;
}

.hero-copy-below {
  padding: 36px 0 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-tagline {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-main);
  line-height: 1.25;
}

@media (min-width: 768px) {
  .hero-tagline {
    font-size: 2.85rem;
  }
}

.hero-subline {
  margin-top: 12px;
  font-size: 0.95rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

/* ==========================================================================
   序列画廊（首页精选序列 & 作品页「南京夜色」专题：单列纵向大图 + 独立题注区）
   ========================================================================== */
.sequence-list {
  display: flex;
  flex-direction: column;
  gap: 56px;
  padding: 16px 0 32px;
}

@media (min-width: 768px) {
  .sequence-list {
    gap: 80px;
  }
}

.sequence-item {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
}

.sequence-item.is-portrait {
  max-width: 640px;
}

.sequence-media {
  width: 100%;
  background-color: var(--bg-panel);
  cursor: zoom-in;
}

.sequence-media img {
  width: 100%;
  height: auto;
  display: block;
}

/* 题注严格在图片下方深色呼吸区，不压图 */
.sequence-caption {
  padding-top: 16px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid rgba(232, 163, 61, 0.15);
  padding-bottom: 12px;
}

.sequence-index {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: var(--accent-warm);
  letter-spacing: 0.12em;
}

.sequence-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--text-main);
  letter-spacing: 0.06em;
}

/* ==========================================================================
   首页 3. 分类入口三卡片（图片在上，文字在下方独立面板，含 hover 绝不压图）
   ========================================================================== */
.category-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding: 16px 0 32px;
}

@media (min-width: 768px) {
  .category-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }
}

.category-card {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-panel);
  border: 1px solid var(--border-card);
  transition: border-color 0.25s ease;
}

.category-card:hover {
  border-color: var(--accent-cyan);
}

.category-card-media {
  width: 100%;
  background-color: #0d1220;
}

.category-card-media img {
  width: 100%;
  height: auto;
  display: block;
}

.category-card-body {
  padding: 24px 20px;
  background-color: var(--bg-panel);
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.category-card-num {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  color: var(--accent-warm);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.category-card-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--text-main);
  margin: 8px 0 10px;
}

.category-card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.category-card-link {
  font-size: 0.85rem;
  color: var(--accent-warm);
  letter-spacing: 0.08em;
}

.category-card:hover .category-card-link {
  color: var(--accent-cyan);
}

/* ==========================================================================
   首页 4. 「南京夜色」专题入口横幅
   ========================================================================== */
.night-banner {
  margin: 48px 0 24px;
  padding: 44px 24px;
  background-color: var(--bg-panel);
  border-top: 1px solid var(--accent-warm);
  border-bottom: 1px solid var(--accent-warm);
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: flex-start;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .night-banner {
    flex-direction: row;
    align-items: center;
    padding: 56px 48px;
  }
}

.night-banner-eyebrow {
  font-family: var(--font-serif);
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  color: var(--accent-warm);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.night-banner-text {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--text-main);
  line-height: 1.45;
}

@media (min-width: 768px) {
  .night-banner-text {
    font-size: 1.65rem;
  }
}

/* ==========================================================================
   作品页：顶部锚点导航 & CSS Columns 瀑布流（桌面3列、平板2列、手机2列，零裁切）
   ========================================================================== */
.works-anchor-bar {
  position: sticky;
  top: 64px;
  z-index: 90;
  background-color: rgba(10, 14, 26, 0.95);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 0;
}

.anchor-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  align-items: center;
}

.anchor-link {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}

.anchor-link:hover {
  color: var(--accent-cyan);
  border-bottom-color: var(--accent-cyan);
}

.anchor-count {
  color: var(--accent-warm);
  font-size: 0.82rem;
  margin-left: 3px;
}

/* 瀑布流：手机2列、平板2列、桌面3列；严禁裁切 */
.masonry-gallery {
  column-count: 2;
  column-gap: 12px;
  padding: 16px 0 24px;
}

@media (min-width: 768px) {
  .masonry-gallery {
    column-count: 2;
    column-gap: 20px;
  }
}

@media (min-width: 1024px) {
  .masonry-gallery {
    column-count: 3;
    column-gap: 24px;
  }
}

.masonry-item {
  break-inside: avoid;
  -webkit-column-break-inside: avoid;
  page-break-inside: avoid;
  margin-bottom: 12px;
  background-color: var(--bg-panel);
  cursor: zoom-in;
}

@media (min-width: 768px) {
  .masonry-item {
    margin-bottom: 20px;
  }
}

@media (min-width: 1024px) {
  .masonry-item {
    margin-bottom: 24px;
  }
}

.masonry-item img {
  width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   约拍页 (booking.html)
   ========================================================================== */
.booking-intro {
  padding: 40px 0 16px;
}

.booking-lead-quote {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--text-main);
  border-left: 3px solid var(--accent-warm);
  padding-left: 16px;
  line-height: 1.5;
}

@media (min-width: 768px) {
  .booking-lead-quote {
    font-size: 1.65rem;
  }
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 28px;
}

@media (min-width: 768px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (min-width: 1200px) {
  .pricing-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.price-card {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-card);
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.price-card--highlight {
  border-color: var(--accent-warm);
}

.price-tier-name {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--text-main);
  margin-bottom: 12px;
}

.price-amount-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.price-current {
  font-family: var(--font-serif);
  font-size: 2.3rem;
  font-weight: 700;
  color: var(--accent-warm);
  line-height: 1;
}

.price-original {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-decoration: line-through;
}

.price-specs {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: var(--text-main);
  font-size: 0.9375rem;
}

.price-specs li::before {
  content: "· ";
  color: var(--accent-warm);
  font-weight: bold;
}

.pricing-footnote {
  margin-top: 20px;
  padding: 16px 20px;
  background-color: var(--bg-panel);
  border-left: 2px solid var(--accent-warm);
  color: var(--text-muted);
  font-size: 0.925rem;
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 20px;
}

@media (min-width: 768px) {
  .steps-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }
}

.step-card {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-card);
  padding: 24px 20px;
}

.step-num {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: var(--accent-warm);
  letter-spacing: 0.16em;
  margin-bottom: 8px;
}

.step-title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  color: var(--text-main);
  margin-bottom: 6px;
}

.step-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.tfp-box {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-card);
  padding: 28px 24px;
  margin-top: 20px;
}

.tfp-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

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

.tfp-list li {
  color: var(--text-main);
  font-size: 0.95rem;
}

.tfp-list li span {
  color: var(--accent-warm);
  margin-right: 8px;
}

.cta-panel {
  margin-top: 48px;
  padding: 36px 24px;
  background-color: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: flex-start;
}

@media (min-width: 768px) {
  .cta-panel {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 44px 40px;
  }
}

.qr-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.qr-box img {
  width: 148px;
  height: 148px;
  object-fit: contain;
  background-color: #1a2236;
  border: 1px solid var(--border-card);
  padding: 6px;
}

.qr-caption {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   关于页 (about.html)
   ========================================================================== */
.about-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding: 40px 0;
  align-items: start;
}

@media (min-width: 768px) {
  .about-layout {
    grid-template-columns: 360px 1fr;
    gap: 56px;
  }
}

.portrait-frame {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-card);
}

.portrait-frame img {
  width: 100%;
  height: auto;
  display: block;
}

.about-statement {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  line-height: 1.9;
  color: var(--text-main);
  margin-bottom: 28px;
}

@media (min-width: 768px) {
  .about-statement {
    font-size: 1.35rem;
  }
}

.about-meta-line {
  padding: 16px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 28px;
}

.about-meta-line strong {
  color: var(--accent-warm);
  font-weight: 500;
}

/* ==========================================================================
   全站统一页脚
   ========================================================================== */
.site-footer {
  margin-top: auto;
  padding: 56px 0 40px;
  border-top: 1px solid var(--border-subtle);
  background-color: #080b14;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: flex-start;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    align-items: center;
  }
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--text-main);
  margin-bottom: 8px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 12px;
}

.footer-links a {
  color: var(--accent-warm);
  font-size: 0.925rem;
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

.footer-qr {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-qr img {
  width: 96px;
  height: 96px;
  object-fit: contain;
  background-color: var(--bg-panel);
  border: 1px solid var(--border-card);
  padding: 4px;
}

.footer-copy {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid rgba(154, 163, 178, 0.1);
  font-size: 0.825rem;
  color: var(--text-muted);
  text-align: center;
}

/* ==========================================================================
   全站共用 Lightbox（object-fit: contain 零裁切、底部小字显示 title 与序号）
   ========================================================================== */
.lightbox {
  position: fixed;
  inset: 0;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 9999;
  background-color: rgba(10, 14, 26, 0.96);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  user-select: none;
  -webkit-user-select: none;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.lightbox-top {
  display: flex;
  justify-content: flex-end;
  padding: 16px 20px;
  flex-shrink: 0;
}

.lightbox-close {
  background: transparent;
  border: 1px solid var(--border-card);
  color: var(--text-main);
  font-size: 1rem;
  padding: 6px 14px;
  cursor: pointer;
}

.lightbox-close:hover {
  border-color: var(--accent-warm);
  color: var(--accent-warm);
}

.lightbox-stage {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 0 16px;
  min-height: 0;
}

.lightbox-picture {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  max-height: 100%;
}

.lightbox-img {
  max-width: 92vw;
  max-height: 78vh;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(18, 24, 40, 0.75);
  border: 1px solid var(--border-card);
  color: var(--text-main);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.25rem;
}

.lightbox-nav:hover {
  border-color: var(--accent-warm);
  color: var(--accent-warm);
}

.lightbox-prev {
  left: 16px;
}

.lightbox-next {
  right: 16px;
}

.lightbox-footer {
  padding: 14px 20px 22px;
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  flex-shrink: 0;
}