/* ============================================================
   YOUNG POSSE 切片站 v0.0.1
   风格：街头 Mixtape · 沥青黑 / 荧光黄 / 桃粉 · 胶带贴纸拼贴
   ============================================================ */

:root {
  --ink: #0b0b0d;          /* 沥青黑 */
  --ink-2: #141419;        /* 卡片底 */
  --paper: #f4f0e6;        /* 脏白 */
  --paper-dim: #b9b4a6;
  --volt: #e8ff2a;         /* 荧光喷漆黄 */
  --pink: #ff2e88;         /* 桃粉 */
  --cyan: #37e6ff;
  --orange: #ff7a1a;
  --lilac: #b98aff;
  --font-display: 'Archivo Black', 'Noto Sans SC', sans-serif;
  --font-marker: 'Permanent Marker', 'Noto Sans SC', cursive;
  --font-body: 'Noto Sans SC', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: hidden;
}

/* 全局噪点颗粒 */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: .07;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

::selection { background: var(--volt); color: var(--ink); }

a { color: inherit; }

/* ---------- 滚动横幅 ---------- */
.ticker {
  background: var(--volt);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: .8rem;
  letter-spacing: .08em;
  overflow: hidden;
  border-bottom: 3px solid var(--ink);
  white-space: nowrap;
}
.ticker-track {
  display: inline-flex;
  animation: ticker-roll 26s linear infinite;
}
.ticker-chunk { padding: .5em 0; }
@keyframes ticker-roll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------- 导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .8rem clamp(1rem, 4vw, 3rem);
  background: rgba(11, 11, 13, .82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(244, 240, 230, .12);
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  text-decoration: none;
  letter-spacing: .02em;
}
.nav-logo-star { color: var(--pink); }
.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(.8rem, 2.5vw, 1.6rem);
  font-weight: 700;
  font-size: .88rem;
}
.nav-links a {
  text-decoration: none;
  padding: .15em .1em;
  border-bottom: 2px solid transparent;
  transition: border-color .2s, color .2s;
}
.nav-links a:hover { color: var(--volt); border-bottom-color: var(--volt); }
.nav-version {
  font-family: var(--font-marker);
  font-size: .78rem;
  color: var(--ink);
  background: var(--pink);
  padding: .1em .55em;
  transform: rotate(-3deg);
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  padding: clamp(3.5rem, 9vh, 7rem) clamp(1rem, 5vw, 4rem) clamp(3rem, 7vh, 5rem);
  overflow: hidden;
}
.hero-spray {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .32;
  pointer-events: none;
}
.hero-spray-pink { width: 520px; height: 520px; background: var(--pink); top: -180px; right: -140px; }
.hero-spray-volt { width: 460px; height: 460px; background: var(--volt); bottom: -220px; left: -160px; opacity: .18; }

.hero-inner { position: relative; max-width: 1080px; margin: 0 auto; }

.hero-kicker {
  font-weight: 700;
  font-size: .85rem;
  letter-spacing: .35em;
  color: var(--paper-dim);
  margin-bottom: 1.2rem;
}

.hero-title {
  font-family: var(--font-display);
  line-height: .88;
  margin-bottom: 1.4rem;
}
.hero-line {
  display: block;
  font-size: clamp(3.4rem, 13.5vw, 9.5rem);
  letter-spacing: -.01em;
}
.hero-line-outline {
  color: transparent;
  -webkit-text-stroke: 2.5px var(--paper);
}
.hero-line-fill {
  color: var(--volt);
  text-shadow: 6px 6px 0 var(--pink);
  margin-left: clamp(1.5rem, 8vw, 7rem);
}

.hero-sticker-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.6rem;
}
.sticker {
  font-family: var(--font-display);
  font-size: 1rem;
  padding: .3em .8em;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, .65);
}
.sticker-pink { background: var(--pink); color: var(--ink); transform: rotate(-3.5deg); }
.sticker-paper { background: var(--paper); color: var(--ink); transform: rotate(1.8deg); font-size: .82rem; }
.hero-marker {
  font-family: var(--font-marker);
  color: var(--volt);
  font-size: 1.05rem;
  transform: rotate(-1.5deg);
}

.hero-desc {
  max-width: 620px;
  color: var(--paper-dim);
  font-size: .95rem;
  margin-bottom: 2.4rem;
}

/* 磁带 */
.cassette-wrap {
  display: inline-block;
  text-decoration: none;
  margin-bottom: 2.6rem;
  transform: rotate(-2deg);
  transition: transform .3s cubic-bezier(.2, 1.4, .4, 1);
}
.cassette-wrap:hover { transform: rotate(0deg) scale(1.03); }
.cassette { width: min(400px, 82vw); height: auto; display: block; filter: drop-shadow(10px 12px 0 rgba(255, 46, 136, .35)); }
.cassette-reel { transform-origin: 152px 196px; animation: reel-spin 3.2s linear infinite; }
.cassette-reel-b { transform-origin: 268px 196px; }
.cassette-wrap:hover .cassette-reel { animation-duration: .9s; }
@keyframes reel-spin { to { transform: rotate(360deg); } }
.cassette-cta {
  display: flex;
  align-items: center;
  gap: .5em;
  margin-top: .9rem;
  font-family: var(--font-marker);
  font-size: 1rem;
  color: var(--volt);
}
.cassette-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--pink);
  animation: dot-pulse 1.1s ease-in-out infinite;
}
@keyframes dot-pulse { 50% { transform: scale(1.7); opacity: .5; } }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  border: 1px solid rgba(244, 240, 230, .18);
}
.stat {
  flex: 1 1 130px;
  padding: .9rem 1.1rem;
  border-right: 1px solid rgba(244, 240, 230, .18);
}
.stat:last-child { border-right: none; }
.stat dt { font-size: .72rem; letter-spacing: .2em; color: var(--paper-dim); }
.stat dd { font-family: var(--font-display); font-size: .98rem; margin-top: .2em; }

/* ---------- 区块通用 ---------- */
.section {
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(3.2rem, 9vh, 6rem) clamp(1rem, 5vw, 4rem) 0;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 5vw, 2.9rem);
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: .6em;
}
.section-num {
  font-family: var(--font-marker);
  color: var(--pink);
  font-size: .55em;
  transform: translateY(-.5em) rotate(-6deg);
}
.section-cn {
  font-size: .5em;
  color: var(--ink);
  background: var(--volt);
  padding: .1em .5em;
  transform: rotate(1.5deg);
  box-shadow: 3px 3px 0 rgba(0, 0, 0, .6);
}
.section-sub {
  color: var(--paper-dim);
  font-size: .9rem;
  margin: .8rem 0 2.2rem;
}

/* ---------- 成员 ---------- */
.member-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}
.member-card {
  --mc: var(--volt);
  position: relative;
  background: var(--ink-2);
  border: 1px solid rgba(244, 240, 230, .14);
  padding: 1.4rem 1.2rem 1.2rem;
  overflow: hidden;
  transition: transform .25s, border-color .25s, box-shadow .25s;
}
.member-card:nth-child(odd) { transform: rotate(-.8deg); }
.member-card:nth-child(even) { transform: rotate(.9deg); }
.member-card:hover {
  transform: rotate(0) translateY(-6px);
  border-color: var(--mc);
  box-shadow: 7px 7px 0 color-mix(in srgb, var(--mc) 40%, transparent);
}
.member-initial {
  position: absolute;
  top: -.28em;
  right: -.05em;
  font-family: var(--font-display);
  font-size: 5.2rem;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px color-mix(in srgb, var(--mc) 55%, transparent);
  pointer-events: none;
}
.member-name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--mc);
}
.member-name em {
  font-style: normal;
  display: block;
  font-size: .62em;
  color: var(--paper);
  letter-spacing: .12em;
}
.member-real { font-size: .82rem; color: var(--paper-dim); margin-top: .5em; }
.member-birth { font-family: var(--font-display); font-size: .8rem; margin: .15em 0 .7em; }
.member-tag {
  display: inline-block;
  font-family: var(--font-marker);
  font-size: .8rem;
  color: var(--ink);
  background: var(--mc);
  padding: .1em .6em;
  transform: rotate(-2deg);
}

/* ---------- 切片筛选 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-bottom: 1.8rem;
}
.filter-btn {
  font-family: var(--font-body);
  font-weight: 900;
  font-size: .85rem;
  color: var(--paper);
  background: transparent;
  border: 2px solid rgba(244, 240, 230, .35);
  padding: .45em 1.1em;
  cursor: pointer;
  transition: all .18s;
}
.filter-btn:hover { border-color: var(--volt); color: var(--volt); transform: translateY(-2px); }
.filter-btn.active {
  background: var(--volt);
  border-color: var(--volt);
  color: var(--ink);
  box-shadow: 4px 4px 0 var(--pink);
  transform: rotate(-1.5deg);
}
.filter-count {
  font-family: var(--font-marker);
  font-size: .82em;
  margin-left: .4em;
  opacity: .75;
}

/* ---------- 切片卡片 ---------- */
.clips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.4rem;
}
.clip-card {
  position: relative;
  display: block;
  text-decoration: none;
  background: var(--ink-2);
  border: 1px solid rgba(244, 240, 230, .14);
  transition: transform .25s, border-color .25s, box-shadow .25s;
  animation: clip-in .5s cubic-bezier(.2, 1.2, .4, 1) both;
}
.clip-card:nth-child(3n+1) { transform: rotate(-.7deg); }
.clip-card:nth-child(3n+2) { transform: rotate(.6deg); }
.clip-card:nth-child(3n)   { transform: rotate(-.3deg); }
.clip-card:hover {
  transform: rotate(0) translateY(-7px);
  border-color: var(--volt);
  box-shadow: 9px 9px 0 rgba(232, 255, 42, .28);
  z-index: 2;
}
@keyframes clip-in {
  from { opacity: 0; transform: translateY(26px) rotate(0); }
}

/* 顶部胶带 */
.clip-card::before {
  content: '';
  position: absolute;
  top: -10px;
  left: 50%;
  width: 92px;
  height: 22px;
  background: rgba(232, 255, 42, .8);
  transform: translateX(-50%) rotate(-2.5deg);
  clip-path: polygon(3% 0, 97% 6%, 100% 90%, 0 100%);
  z-index: 3;
  mix-blend-mode: screen;
}

.clip-thumb-box {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-bottom: 2px solid rgba(244, 240, 230, .16);
}
.clip-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(.85) contrast(1.02);
  transition: transform .4s, filter .3s;
}
.clip-card:hover .clip-thumb { transform: scale(1.06); filter: saturate(1.15); }

/* 播放按钮 */
.clip-play {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(11, 11, 13, .25);
  opacity: 0;
  transition: opacity .25s;
}
.clip-card:hover .clip-play { opacity: 1; }
.clip-play span {
  width: 62px;
  height: 62px;
  display: grid;
  place-items: center;
  background: var(--volt);
  color: var(--ink);
  border-radius: 50%;
  font-size: 1.4rem;
  box-shadow: 4px 4px 0 var(--pink);
  padding-left: 5px;
}

.clip-new {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 4;
  font-family: var(--font-marker);
  font-size: .85rem;
  background: var(--pink);
  color: var(--paper);
  padding: .1em .6em;
  transform: rotate(4deg);
  animation: new-blink 1.3s steps(2) infinite;
}
@keyframes new-blink { 50% { box-shadow: 0 0 0 4px rgba(255, 46, 136, .45); } }

.clip-body { padding: 1rem 1.1rem 1.15rem; }
.clip-meta {
  display: flex;
  align-items: center;
  gap: .6em;
  font-size: .72rem;
  margin-bottom: .45em;
}
.clip-date { font-family: var(--font-display); color: var(--paper-dim); letter-spacing: .05em; }
.clip-tag {
  font-weight: 900;
  color: var(--ink);
  background: var(--cyan);
  padding: 0 .5em;
  transform: rotate(-1deg);
}
.clip-title {
  font-family: var(--font-display);
  font-size: 1.02rem;
  color: var(--paper);
  line-height: 1.3;
}
.clip-note { font-size: .8rem; color: var(--paper-dim); margin-top: .45em; }

.clips-empty {
  grid-column: 1 / -1;
  text-align: center;
  font-family: var(--font-marker);
  color: var(--paper-dim);
  padding: 3rem 0;
}

/* ---------- 年表 ---------- */
.timeline {
  list-style: none;
  border-left: 2px dashed rgba(244, 240, 230, .28);
  margin-left: .5rem;
  padding-left: 2rem;
}
.timeline-item { --tc: var(--volt); position: relative; padding-bottom: 2.1rem; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-2rem - 9px);
  top: .35em;
  width: 14px;
  height: 14px;
  background: var(--tc);
  transform: rotate(45deg);
  box-shadow: 3px 3px 0 rgba(0, 0, 0, .7);
}
.timeline-date {
  font-family: var(--font-display);
  font-size: .8rem;
  color: var(--tc);
  letter-spacing: .1em;
}
.timeline-item h3 { font-size: 1.06rem; font-weight: 900; margin: .2em 0 .25em; }
.timeline-item p { font-size: .86rem; color: var(--paper-dim); max-width: 560px; }
.timeline-item-now h3 { color: var(--volt); }
.timeline-item-now::before { animation: dot-pulse 1.2s ease-in-out infinite; }

/* ---------- 页脚 ---------- */
.footer {
  margin-top: clamp(3.5rem, 9vh, 6rem);
  padding: 3rem clamp(1rem, 5vw, 4rem) 2.4rem;
  border-top: 3px solid var(--volt);
  background: #08080a;
  text-align: center;
}
.footer-slogan {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 6vw, 3rem);
  color: transparent;
  -webkit-text-stroke: 1.5px var(--paper);
  letter-spacing: .02em;
}
.footer-bang { color: var(--pink); -webkit-text-stroke: 0; }
.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.4rem;
  margin: 1.4rem 0 1.6rem;
  font-weight: 700;
  font-size: .88rem;
}
.footer-links a { color: var(--volt); text-decoration: none; border-bottom: 2px solid transparent; }
.footer-links a:hover { border-bottom-color: var(--pink); }
.footer-note { font-size: .74rem; color: var(--paper-dim); line-height: 1.9; }
.footer-made {
  font-family: var(--font-marker);
  color: var(--pink);
  font-size: .85rem;
  margin-top: 1.2rem;
  transform: rotate(-1deg);
}

/* ---------- 入场动效 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s cubic-bezier(.2, .9, .3, 1);
}
.reveal.in { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .ticker-track, .cassette-reel, .clip-new, .cassette-dot { animation: none !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 移动端 ---------- */
@media (max-width: 560px) {
  .hero-line-fill { margin-left: 1rem; text-shadow: 4px 4px 0 var(--pink); }
  .stat { flex-basis: 50%; border-bottom: 1px solid rgba(244, 240, 230, .18); }
  .timeline { padding-left: 1.5rem; }
  .timeline-item::before { left: calc(-1.5rem - 8px); }
}