/* =========================================================
   薛嘉耀个人影像作品集 — 真实牛皮纸档案风设计系统
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@200;300;400;600;700;900&family=Space+Mono:wght@400;700&display=swap');

:root {
  --paper: #f7f5f0;
  --ink: #1a1a1a;
  --ink-light: #4a4a4a;
  --red-seal: #a83232;
  --kraft: #c9a878;
  --kraft-dark: #8b6f4e;
  --tape: rgba(245, 240, 230, 0.78);
  --shadow: rgba(30, 20, 10, 0.22);
  --radius: 2px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Serif SC', 'PingFang SC', 'Microsoft YaHei', serif;
  color: var(--ink);
  background: var(--kraft);
  overflow: auto;
  min-height: 100vh;
}

body.category-page {
  overflow: auto;
}

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

a {
  color: inherit;
  text-decoration: none;
}

/* =========================================================
   HERO 封面：直接使用 hero底图.jpg + hero标签.png
   #hero 自身就是背景图，不依赖子元素，确保稳定渲染
   ========================================================= */
#hero {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  width: 100vw;
  height: 100vh;
  padding-top: 10vh;
  background-image: url('../assets/images/hero-kraft-bg.jpg?v=4');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-color: #b08d5f; /* 图加载前的兜底色 */
}

.hero-label-wrapper {
  position: relative;
  z-index: 2;
  width: min(460px, 30vw);
  margin-top: 2vh;
  animation: labelSnap 1.1s cubic-bezier(0.34, 1.56, 0.64, 1) 0.25s both;
}

.hero-label {
  width: 100%;
  height: auto;
}

/* 标签“啪”地吸附：从上方飞入 + 回弹落定，最终微微右倾匹配参考 */
@keyframes labelSnap {
  0% {
    opacity: 0;
    transform: translateY(-100px) scale(1.45) rotate(-10deg);
  }
  50% {
    opacity: 1;
    transform: translateY(12px) scale(0.92) rotate(4deg);
  }
  70% {
    transform: translateY(-6px) scale(1.04) rotate(-0.5deg);
  }
  85% {
    transform: translateY(3px) scale(0.98) rotate(2deg);
  }
  100% {
    transform: translateY(0) scale(1) rotate(1.5deg);
  }
}

.scroll-hint {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  text-align: center;
  color: var(--ink-light);
  font-size: 11px;
  letter-spacing: 2px;
  opacity: 0.45;
  animation: hintPulse 2.5s ease-in-out infinite;
}

.scroll-hint span {
  display: block;
  margin-bottom: 8px;
  font-family: 'Space Mono', monospace;
}

.scroll-arrow {
  width: 1px;
  height: 28px;
  background: var(--ink-light);
  margin: 0 auto;
  position: relative;
}

.scroll-arrow::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: -3px;
  width: 7px;
  height: 7px;
  border-right: 1px solid var(--ink-light);
  border-bottom: 1px solid var(--ink-light);
  transform: rotate(45deg);
}

@keyframes hintPulse {
  0%, 100% { opacity: 0.5; transform: translateX(-50%) translateY(0); }
  50% { opacity: 1; transform: translateX(-50%) translateY(6px); }
}

/* =========================================================
   主内容区（滚动后从 hero 下方自然出现）
   ========================================================= */
#mainContent {
  position: relative;
  z-index: 15;
  margin-top: 100vh;
  background: url('../assets/images/bg-4.jpg?v=5') center top / cover no-repeat fixed;
}

.section {
  position: relative;
  min-height: 100vh;
  width: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 10vh 8vw;
  margin-bottom: -3px;
  transform: translateZ(0);
}

/* 概况区使用带白纸的底图 5.png（随内容滚动，像一张铺在牛皮纸上的白纸） */
.profile-section {
  background-image: url('../assets/images/bg-5.jpg?v=5');
  background-color: #c4a88a;
  background-attachment: scroll;
}

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* 白色纸张内容卡片 */
.paper-card {
  background: rgba(247, 245, 240, 0.94);
  padding: 48px 42px;
  box-shadow: 0 12px 50px rgba(0,0,0,0.15);
  position: relative;
}

.paper-card::before {
  content: '';
  position: absolute;
  top: 18px;
  left: 18px;
  right: 18px;
  bottom: 18px;
  border: 1px solid rgba(0,0,0,0.08);
  pointer-events: none;
}

.tape {
  position: absolute;
  background: var(--tape);
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  opacity: 0.85;
}

.tape-top {
  top: -12px;
  left: 50%;
  transform: translateX(-50%) rotate(-1deg);
  width: 140px;
  height: 28px;
}

.tape-left {
  left: -14px;
  top: 40px;
  width: 28px;
  height: 90px;
  transform: rotate(2deg);
}

.tape-right {
  right: -14px;
  top: 60px;
  width: 28px;
  height: 70px;
  transform: rotate(-1.5deg);
}

/* =========================================================
   标题系统
   ========================================================= */
.section-title {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(44px, 7vw, 92px);
  letter-spacing: 6px;
  line-height: 1.05;
  margin-bottom: 12px;
}

.section-title-en {
  font-family: 'Space Mono', monospace;
  font-size: clamp(12px, 1.4vw, 15px);
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--ink-light);
  margin-bottom: 42px;
  display: block;
}

/* =========================================================
   个人档案区
   ========================================================= */
.profile-section .section-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.profile-left {
  position: relative;
}

.profile-name {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(52px, 8vw, 110px);
  line-height: 1;
  letter-spacing: 8px;
  margin-bottom: 10px;
}

.profile-name-en {
  font-family: 'Space Mono', monospace;
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--ink-light);
  margin-bottom: 28px;
}

.profile-meta {
  font-size: 15px;
  line-height: 2;
  color: var(--ink-light);
  margin-bottom: 24px;
}

.profile-meta strong {
  color: var(--ink);
  font-weight: 600;
}

.profile-qr {
  width: 120px;
  height: 120px;
  background: #fff;
  padding: 6px;
  border: 1px solid rgba(0,0,0,0.1);
  margin-top: 20px;
}

.profile-right p {
  font-size: 16px;
  line-height: 2.1;
  margin-bottom: 20px;
  text-align: justify;
}

.profile-right p:last-child {
  margin-bottom: 0;
}

.highlight {
  background: linear-gradient(transparent 60%, rgba(168, 50, 50, 0.15) 60%);
  padding: 0 2px;
}

/* =========================================================
   案例展示四宫格（强制 2x2）
   ========================================================= */
.works-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.work-card {
  position: relative;
  /* 覆盖底图，比例归 16:9 */
  aspect-ratio: 16 / 9;
  background-color: #232323;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  box-shadow: 0 10px 40px rgba(0,0,0,0.12);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
}

.work-card:hover {
  transform: translateY(-6px) rotate(-0.5deg);
  box-shadow: 0 18px 55px rgba(0,0,0,0.18);
}

.work-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.68) 0%, rgba(0,0,0,0.25) 45%, transparent 70%);
  z-index: 1;
}

.work-card-content {
  position: relative;
  z-index: 2;
}

.work-card-num {
  font-family: 'Space Mono', monospace;
  font-size: 13px;
  color: #fff;
  margin-bottom: 8px;
  opacity: 0.9;
}

.work-card-title {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(28px, 4vw, 42px);
  color: #fff;
  letter-spacing: 3px;
  line-height: 1.2;
}

.work-card-en {
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  color: rgba(255,255,255,0.8);
  margin-top: 6px;
  letter-spacing: 2px;
}

/* =========================================================
   能力定位
   ========================================================= */
.skill-block {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  margin-bottom: 36px;
  align-items: start;
}

.skill-num {
  font-family: 'Space Mono', monospace;
  font-size: 42px;
  color: var(--red-seal);
  opacity: 0.7;
  line-height: 1;
}

.skill-body h3 {
  font-size: 22px;
  margin-bottom: 10px;
  letter-spacing: 2px;
}

.skill-body p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-light);
}

/* =========================================================
   联系方式
   ========================================================= */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.contact-card {
  background: rgba(247, 245, 240, 0.94);
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0,0,0,0.12);
  transition: transform 0.25s ease;
}

.contact-card:hover {
  transform: translateY(-4px);
}

.contact-label {
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  color: var(--ink-light);
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.contact-value {
  font-size: 16px;
  font-weight: 600;
  word-break: break-all;
}

.resume-btn {
  display: inline-block;
  margin-top: 16px;
  padding: 10px 24px;
  border: 1px solid var(--ink);
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  letter-spacing: 2px;
  transition: background 0.25s, color 0.25s;
}

.resume-btn:hover {
  background: var(--ink);
  color: var(--paper);
}

/* =========================================================
   感谢页
   ========================================================= */
.thank-section {
  text-align: center;
}

.thank-section h2 {
  font-family: 'Noto Serif SC', serif;
  font-weight: 200;
  font-size: clamp(32px, 5vw, 72px);
  letter-spacing: 0.3em;
  text-indent: 0.3em;
  color: var(--ink);
  margin-bottom: 26px;
}

.thank-section p {
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.5em;
  text-indent: 0.5em;
  text-transform: uppercase;
  color: var(--ink-light);
  opacity: 0.85;
}

/* =========================================================
   子页面通用 —— 背景固定用 5.png
   ========================================================= */
.category-page {
  background: url('../assets/images/bg-4.jpg?v=6') center center / cover no-repeat fixed;
  min-height: 100vh;
  padding: 10vh 6vw 8vh;
}

.back-btn {
  position: fixed;
  top: 24px;
  left: 24px;
  z-index: 100;
  background: rgba(247, 245, 240, 0.95);
  padding: 10px 18px;
  font-family: 'Space Mono', monospace;
  font-size: 13px;
  letter-spacing: 1px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.12);
  transition: transform 0.2s ease;
}

.back-btn:hover {
  transform: translateX(-4px);
}

.category-header {
  text-align: center;
  margin-bottom: 48px;
  padding-top: 30px;
}

.category-header h1 {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(42px, 7vw, 86px);
  letter-spacing: 6px;
  margin-bottom: 8px;
}

.category-header .category-en {
  font-family: 'Space Mono', monospace;
  font-size: 13px;
  letter-spacing: 3px;
  color: var(--ink-light);
}

/* 子页面作品四宫格（强制 2x2） */
.works-grid-page {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.work-item {
  position: relative;
  background: rgba(247, 245, 240, 0.93);
  aspect-ratio: 16 / 10;
  overflow: hidden;
  box-shadow: 0 12px 45px rgba(0,0,0,0.14);
  transition: transform 0.3s ease;
}

.work-item:hover {
  transform: translateY(-5px) rotate(-0.3deg);
}

.work-item img,
.work-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.work-item-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 24px 20px 18px;
  background: linear-gradient(to top, rgba(0,0,0,0.72), transparent);
  color: #fff;
}

.work-item-title {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(20px, 2.8vw, 30px);
  letter-spacing: 2px;
  margin-bottom: 4px;
}

.work-item-meta {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  letter-spacing: 1px;
  opacity: 0.85;
}

.award-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--red-seal);
  color: #fff;
  padding: 6px 12px;
  font-size: 12px;
  letter-spacing: 1px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.2);
}

.work-item.still-only {
  aspect-ratio: 16 / 11;
}

/* =========================================================
   子页面 · 作品区块（单一作品完整静帧展示）
   ========================================================= */
.work-block {
  max-width: 1200px;
  margin: 0 auto 56px;
  background: rgba(247, 245, 240, 0.94);
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 16px 50px rgba(0,0,0,0.16);
  position: relative;
  padding: 34px 34px 30px;
}

/* 顶部区：编号 + 标题 + 元信息 */
.work-block-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 20px;
  margin-bottom: 26px;
  border-bottom: 1px solid rgba(0,0,0,0.1);
}

.work-block-num {
  font-family: 'Space Mono', monospace;
  font-size: 13px;
  letter-spacing: 2px;
  color: #fff;
  background: var(--ink);
  padding: 5px 12px;
}

.work-block-title {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(24px, 3.5vw, 38px);
  letter-spacing: 2px;
}

/* 剧名旁的小字备注（赞助 / 入围 / 获奖） */
.work-block-note {
  font-size: 12px;
  line-height: 1.65;
  letter-spacing: 0.5px;
  color: var(--ink-light);
  border-left: 2px solid rgba(168, 50, 50, 0.45);
  padding-left: 12px;
  max-width: 340px;
}

.work-block-meta {
  font-family: 'Space Mono', monospace;
  font-size: 16px;
  letter-spacing: 1.5px;
  color: var(--ink-light);
  margin-left: auto;
}

.work-block-award {
  background: var(--red-seal);
  color: #fff;
  font-size: 12px;
  letter-spacing: 1px;
  padding: 5px 12px;
}

/* 静帧网格：封面占整行，其余按列排 */
.work-stills {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.work-stills figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: #e8e2d8;
  aspect-ratio: 16 / 10;
}

/* 封面图：占满整行 */
.work-stills figure.cover {
  grid-column: 1 / -1;
  aspect-ratio: 16 / 9;
}

.work-stills img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.work-stills figure:hover img {
  transform: scale(1.04);
}

.work-stills figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 10px 14px;
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  letter-spacing: 1px;
  color: #fff;
  background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
}

/* 封面可点击跳转原片 */
.work-stills figure.playable { cursor: pointer; }
.work-stills figure.playable .cover-link {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: block;
}
.work-stills figure.playable .cover-link:hover img { transform: scale(1.04); }
.work-stills figure.playable .cover-tape {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 92px;
  height: 26px;
  z-index: 4;
  transform: rotate(-5deg);
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.28), rgba(255,255,255,0) 42%, rgba(0,0,0,0.08)),
    repeating-linear-gradient(90deg, rgba(0,0,0,0.07) 0 2px, transparent 2px 4px),
    rgba(226, 214, 188, 0.92);
  box-shadow: 0 2px 6px rgba(0,0,0,0.22), inset 0 0 3px rgba(255,255,255,0.45);
  border-left: 2px dashed rgba(120,110,90,0.5);
  border-right: 2px dashed rgba(120,110,90,0.5);
}
.work-stills figure.playable .cover-hint {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 4;
  padding: 10px 14px;
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  letter-spacing: 1px;
  color: #fff;
  text-align: center;
  background: linear-gradient(to top, rgba(0,0,0,0.72), rgba(0,0,0,0));
  text-decoration: underline;
  pointer-events: none;
}

/* 一排五个 9:16 竖版静帧（无单独封面大图） */
.work-stills.still-row {
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.work-stills.still-row figure {
  aspect-ratio: 9 / 16;
}

/* 竖版窄列：胶带与提示文字等比缩小 */
.work-stills.still-row figure.playable .cover-tape {
  top: 10px;
  right: 10px;
  width: 66px;
  height: 20px;
  transform: rotate(-6deg);
}
.work-stills.still-row figure.playable .cover-hint {
  padding: 8px 8px;
  font-size: 10px;
  letter-spacing: 0.5px;
}

/* 2.35:1 静帧按原比例排布（整组或单张封面） */
.work-stills.r235 figure,
.work-stills figure.r235 {
  aspect-ratio: 2.35 / 1;
}

/* 一行三张 / 一行四张 */
.work-stills.cols-3 { grid-template-columns: repeat(3, 1fr); }
.work-stills.cols-4 { grid-template-columns: repeat(4, 1fr); }

/* 视频占位区块（用户后续替换成 <video>） */
.work-video-slot {
  margin-top: 20px;
  aspect-ratio: 16 / 9;
  background: #d8d0c2;
  border: 1px dashed rgba(0,0,0,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-light);
  font-family: 'Space Mono', monospace;
  font-size: 13px;
  letter-spacing: 1px;
  overflow: hidden;
}
.work-video-slot video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}

/* 响应式：窄屏单列 */
@media (max-width: 768px) {
  .work-stills { grid-template-columns: 1fr; }
  .work-stills.cols-3,
  .work-stills.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .work-stills figure.cover { aspect-ratio: 16 / 10; }
  .work-stills.r235 figure,
  .work-stills figure.cover.r235 { aspect-ratio: 2.35 / 1; }
  .work-stills.still-row { grid-template-columns: repeat(2, 1fr); }
  .work-block { padding: 22px 18px; }
  .work-block-meta { margin-left: 0; width: 100%; }
}


/* AIGC 工作流截图区 */
.workflow-strip {
  max-width: 1200px;
  margin: 32px auto 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.workflow-item {
  aspect-ratio: 1;
  background: rgba(247, 245, 240, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--ink-light);
  border: 1px dashed rgba(0,0,0,0.15);
}

/* =========================================================
   响应式
   ========================================================= */

/* 手机竖屏：使用专用竖版背景，标签放大 */
@media (max-width: 768px) and (orientation: portrait) {
  #hero {
    background-image: url('../assets/images/hero-kraft-bg-portrait.jpg?v=5');
    background-position: center top;
    align-items: center;
    padding-top: 0;
  }

  .hero-label-wrapper {
    width: min(78vw, 420px);
    margin-top: 0;
  }

  .scroll-hint {
    bottom: 14px;
    font-size: 10px;
  }
}

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

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .works-grid,
  .works-grid-page {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .paper-card {
    padding: 32px 24px;
  }

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

@media (max-width: 480px) {
  .hero-label-wrapper {
    width: min(320px, 58vw);
  }

  .section {
    padding: 8vh 5vw;
  }

  .works-grid,
  .works-grid-page {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .work-card {
    padding: 20px;
  }

  .work-card-title {
    font-size: 22px;
  }

  .category-page {
    padding: 8vh 4vw;
  }
}

/* =========================================================
   爆款展示：左 1/3 文字 + 右 2/3 扇形堆叠数据截图
   ========================================================= */
.hit-section {
  overflow-x: clip;
}

/* 给右侧扇形留出更宽的舞台，同时保证不和左侧文字重叠 */
.hit-section .section-inner {
  max-width: 1340px;
}

.hit-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 36px;
  align-items: center;
}

/* 左栏留出舒适宽度，文字恢复舒展的排版 */
.hit-card {
  padding: 30px 26px;
}

.hit-sub {
  font-family: 'Noto Serif SC', serif;
  font-size: 24px;
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.hit-card p {
  font-size: 15px;
  line-height: 1.95;
  color: var(--ink);
  margin-bottom: 14px;
}

.hit-stats {
  list-style: none;
  margin: 20px 0 18px;
}

.hit-stats li {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding-bottom: 9px;
  margin-bottom: 9px;
  border-bottom: 1px dashed rgba(0, 0, 0, 0.18);
}

.hit-stats li:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.hit-stats strong {
  font-family: 'Space Mono', monospace;
  font-size: 26px;
  font-weight: 700;
  color: var(--red-seal);
  letter-spacing: 1px;
}

.hit-stats span {
  font-size: 12px;
  letter-spacing: 0.5px;
  color: var(--ink-light);
}

.hit-note {
  font-size: 14px;
  color: var(--ink-light);
  margin-bottom: 12px;
}

.hit-note:last-child {
  margin-bottom: 0;
}

/* 扇形排布：四张沿弧线展开、彼此不遮挡，数据完整可见 */
.fan-stack {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: clamp(10px, 1.6vw, 22px);
  padding: 18px 0 24px;
}

.fan-card {
  position: relative;
  flex: 1 1 0;
  max-width: 230px;
  aspect-ratio: 1206 / 2015;
  margin: 0;
  overflow: hidden;
  background: #efe9de;
  border: 5px solid #f8f5ef;
  border-radius: 4px;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.24);
  transform-origin: 50% 100%;
  transform: translateY(var(--y, 0px)) rotate(var(--rot, 0deg));
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.fan-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 非手机比例（近方形）的截图：完整显示，不裁切数据 */
.fan-card.fit img {
  object-fit: contain;
  background: #f4f0e8;
}

.fan-card figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 10px 8px;
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  line-height: 1.5;
  letter-spacing: 0.5px;
  color: #fff;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0));
}

/* 弧线：外侧卡片略低、倾角更大，中间两张挺立 */
.fan-card:nth-child(1) { --rot: -5deg;  --y: 18px; }
.fan-card:nth-child(2) { --rot: -1.7deg; --y: 0px; }
.fan-card:nth-child(3) { --rot: 1.7deg; --y: 0px; }
.fan-card:nth-child(4) { --rot: 5deg;   --y: 18px; }
.fan-card:nth-child(5) { --rot: 8deg;   --y: 36px; }
.fan-card:nth-child(6) { --rot: 11deg;  --y: 56px; }

.fan-card:hover {
  z-index: 5;
  transform: translateY(calc(var(--y, 0px) - 14px)) rotate(var(--rot, 0deg)) scale(1.052);
  box-shadow: 0 24px 52px rgba(0, 0, 0, 0.32);
}

/* 响应式 */
@media (max-width: 1200px) {
  .hit-layout {
    grid-template-columns: 215px 1fr;
    gap: 24px;
  }

  .fan-stack {
    gap: 12px;
  }

  .fan-card {
    max-width: 205px;
  }
}

@media (max-width: 900px) {
  .hit-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .fan-stack {
    gap: 12px;
    padding: 14px 0 18px;
  }

  .fan-card {
    max-width: 200px;
  }

  /* 单列布局下文字栏变宽，数据行恢复数字+说明并排 */
  .hit-stats li {
    flex-direction: row;
    align-items: baseline;
    gap: 12px;
  }

  .hit-stats strong {
    min-width: 84px;
  }
}

/* =========================================================
   iOS Safari 兼容：它不支持 background-attachment: fixed，
   保留会导致背景错位/跳帧，这里改回随页面滚动
   ========================================================= */
@supports (-webkit-touch-callout: none) {
  .section,
  #mainContent {
    background-attachment: scroll;
  }
}

/* 手机竖屏：爆款展示改 2×2 四宫格，卡片放大、数据说明保留 */
@media (max-width: 520px) {
  /* 收紧卡片内边距，把宽度让给数据截图 */
  .hit-card {
    padding: 22px 14px;
  }

  .fan-stack {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 12px 0 16px;
    align-items: end;
  }

  /* 网格排布下取消扇形倾角，四张对齐、互不遮挡 */
  .fan-stack .fan-card:nth-child(1),
  .fan-stack .fan-card:nth-child(2),
  .fan-stack .fan-card:nth-child(3),
  .fan-stack .fan-card:nth-child(4) {
    --rot: 0deg;
    --y: 0px;
  }

  .fan-card {
    width: 100%;
    max-width: 100%;
    border-width: 4px;
  }

  /* 恢复数据说明，字号按小屏重新调整 */
  .fan-card figcaption {
    display: block;
    font-size: 9px;
    line-height: 1.45;
    letter-spacing: 0.2px;
    padding: 9px 7px 6px;
  }
}