/* ============================================================
   ERIS × ROXY — 主题样式
   绯红（艾莉丝）× 湛蓝（洛琪希）双色视觉
   纯手写 CSS，无框架、无外部请求
   ============================================================ */

/* ---------- 设计变量 ---------- */
:root {
  --bg: #0a0c13;
  --bg-soft: #10131d;
  --bg-elev: #161a26;
  --panel: rgba(255, 255, 255, 0.045);
  --panel-strong: rgba(255, 255, 255, 0.075);
  --line: rgba(255, 255, 255, 0.10);
  --line-soft: rgba(255, 255, 255, 0.06);

  --text: #e9ecf5;
  --text-soft: #b9c0d4;
  --muted: #8b93a9;

  --eris: #e34a5f;
  --eris-2: #ff8a6b;
  --eris-glow: rgba(227, 74, 95, 0.35);
  --roxy: #4d93e8;
  --roxy-2: #7ad0f0;
  --roxy-glow: rgba(77, 147, 232, 0.35);

  --gold: #d9b26a;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --maxw: 1120px;

  --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-serif: Georgia, "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", "SimSun", serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

/* ---------- 基础重置 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 双色环境光：左绯红、右湛蓝 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(52vw 52vw at 8% -4%, rgba(227, 74, 95, 0.16), transparent 62%),
    radial-gradient(52vw 52vw at 92% 2%, rgba(77, 147, 232, 0.16), transparent 62%),
    radial-gradient(70vw 50vw at 50% 108%, rgba(217, 178, 106, 0.07), transparent 70%);
  pointer-events: none;
}

/* 细网格纹理 */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 30%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 20%, transparent 78%);
  pointer-events: none;
}

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

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

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 0.6em;
  letter-spacing: 0.01em;
}

p { margin: 0 0 1em; }

code, pre { font-family: var(--font-mono); }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 22px;
}

.section { padding: 84px 0; }
.section--tight { padding: 52px 0; }

.section-head { margin-bottom: 34px; }

.eyebrow {
  display: inline-block;
  font-size: 0.74rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.55rem, 3.4vw, 2.3rem);
  margin-bottom: 0.35em;
}

.section-sub {
  color: var(--text-soft);
  max-width: 62ch;
  margin: 0;
}

.lead { font-size: 1.06rem; color: var(--text-soft); }

.grid { display: grid; gap: 22px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* ---------- 导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(10, 12, 19, 0.72);
  border-bottom: 1px solid var(--line-soft);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 66px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 1.06rem;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.brand__mark {
  font-weight: 700;
  background: linear-gradient(100deg, var(--eris) 0%, var(--eris-2) 34%, var(--roxy-2) 68%, var(--roxy) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand__sub {
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.18em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav__links a {
  padding: 8px 13px;
  border-radius: 999px;
  font-size: 0.92rem;
  color: var(--text-soft);
  transition: background 0.2s ease, color 0.2s ease;
}

.nav__links a:hover { background: var(--panel); color: var(--text); }

.nav__links a[aria-current="page"] {
  color: var(--text);
  background: var(--panel-strong);
  box-shadow: inset 0 0 0 1px var(--line);
}

.nav__toggle {
  display: none;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 7px 12px;
  font-size: 1rem;
  cursor: pointer;
}

/* ---------- 首屏 ---------- */
.hero {
  position: relative;
  padding: clamp(72px, 12vh, 132px) 0 clamp(60px, 9vh, 96px);
  text-align: center;
}

.hero__kicker {
  font-size: 0.76rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 20px;
}

.hero__title {
  font-size: clamp(2.6rem, 9vw, 5.4rem);
  line-height: 1.02;
  margin: 0 0 8px;
  letter-spacing: 0.02em;
}

.hero__title .x {
  font-size: 0.52em;
  vertical-align: middle;
  padding: 0 0.12em;
  color: var(--gold);
  font-style: italic;
}

.grad-eris {
  background: linear-gradient(120deg, var(--eris-2), var(--eris));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.grad-roxy {
  background: linear-gradient(120deg, var(--roxy-2), var(--roxy));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__cn {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 3vw, 1.5rem);
  letter-spacing: 0.42em;
  color: var(--text-soft);
  margin: 0 0 22px;
  text-indent: 0.42em;
}

.hero__desc {
  max-width: 60ch;
  margin: 0 auto 34px;
  color: var(--text-soft);
}

.hero__actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 24px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  font-size: 0.94rem;
  cursor: pointer;
  transition: transform 0.18s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.25s ease;
}

.btn:hover {
  transform: translateY(-2px);
  background: var(--panel-strong);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn--eris {
  background: linear-gradient(120deg, rgba(227, 74, 95, 0.9), rgba(255, 138, 107, 0.85));
  border-color: transparent;
  color: #1a0d10;
  font-weight: 600;
  box-shadow: 0 12px 30px var(--eris-glow);
}

.btn--roxy {
  background: linear-gradient(120deg, rgba(77, 147, 232, 0.9), rgba(122, 208, 240, 0.85));
  border-color: transparent;
  color: #06131f;
  font-weight: 600;
  box-shadow: 0 12px 30px var(--roxy-glow);
}

.btn--eris:hover, .btn--roxy:hover { filter: brightness(1.07); }

/* ---------- 角色卡 ---------- */
.char-card {
  position: relative;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--bg-elev), var(--bg-soft));
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.3s ease;
}

.char-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.char-card--eris:hover { border-color: rgba(227, 74, 95, 0.55); }
.char-card--roxy:hover { border-color: rgba(77, 147, 232, 0.55); }

.char-card__visual {
  position: relative;
  aspect-ratio: 16 / 10;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.char-card--eris .char-card__visual {
  background:
    radial-gradient(60% 70% at 30% 20%, rgba(255, 138, 107, 0.32), transparent 70%),
    linear-gradient(140deg, #34121b, #170a11 65%);
}

.char-card--roxy .char-card__visual {
  background:
    radial-gradient(60% 70% at 70% 20%, rgba(122, 208, 240, 0.32), transparent 70%),
    linear-gradient(140deg, #10233c, #0a1220 65%);
}

.char-card__mono {
  font-family: var(--font-serif);
  font-size: clamp(3.4rem, 12vw, 6rem);
  line-height: 1;
  opacity: 0.9;
}

.char-card--eris .char-card__mono { color: #ffd9cf; text-shadow: 0 0 34px var(--eris-glow); }
.char-card--roxy .char-card__mono { color: #d6f0ff; text-shadow: 0 0 34px var(--roxy-glow); }

.char-card__body { padding: 22px 24px 26px; }

.char-card__name {
  font-size: 1.32rem;
  margin: 0 0 4px;
}

.char-card__jp {
  font-size: 0.84rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  margin: 0 0 14px;
}

.char-card__epithet {
  font-family: var(--font-serif);
  color: var(--gold);
  font-size: 0.94rem;
  margin-bottom: 12px;
}

.char-card__text { color: var(--text-soft); font-size: 0.95rem; margin: 0 0 16px; }

.char-card__more { font-size: 0.88rem; color: var(--muted); }
.char-card:hover .char-card__more { color: var(--text); }

/* ---------- 通用面板 / 信息块 ---------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 28px;
}

.panel--plain { background: transparent; }

.tag-row { display: flex; flex-wrap: wrap; gap: 9px; margin: 0 0 18px; padding: 0; list-style: none; }

.tag {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-soft);
}

.tag--eris { border-color: rgba(227, 74, 95, 0.45); color: #ffc9c0; background: rgba(227, 74, 95, 0.10); }
.tag--roxy { border-color: rgba(77, 147, 232, 0.45); color: #c6e6ff; background: rgba(77, 147, 232, 0.10); }

/* ---------- 角色页版式 ---------- */
.profile {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 44px;
  align-items: start;
}

.profile__aside { position: sticky; top: 92px; }

.portrait {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  aspect-ratio: 3 / 4;
  display: grid;
  place-items: center;
  overflow: hidden;
  margin-bottom: 18px;
}

.portrait--eris {
  background:
    radial-gradient(70% 60% at 40% 25%, rgba(255, 138, 107, 0.30), transparent 72%),
    linear-gradient(160deg, #3a1420, #140a10 70%);
}

.portrait--roxy {
  background:
    radial-gradient(70% 60% at 60% 25%, rgba(122, 208, 240, 0.30), transparent 72%),
    linear-gradient(160deg, #12263f, #080f1a 70%);
}

.portrait__mono {
  font-family: var(--font-serif);
  font-size: 5.6rem;
  opacity: 0.85;
}

.portrait__note {
  position: absolute;
  bottom: 12px;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.5);
}

.fact-list { list-style: none; margin: 0; padding: 0; }

.fact-list li {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 0.9rem;
}

.fact-list li:last-child { border-bottom: none; }

.fact-list dt, .fact-list .k { color: var(--muted); letter-spacing: 0.06em; }
.fact-list .v { color: var(--text-soft); }

.page-head {
  padding: clamp(52px, 8vh, 84px) 0 34px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 46px;
}

.page-head__en {
  font-size: 0.76rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.page-head__title { font-size: clamp(2rem, 5.4vw, 3.2rem); margin: 0 0 8px; }
.page-head__jp { color: var(--muted); letter-spacing: 0.2em; font-size: 0.9rem; margin: 0 0 18px; }
.page-head__lead { color: var(--text-soft); max-width: 66ch; margin: 0; }

.prose h3 { margin-top: 1.8em; font-size: 1.14rem; }
.prose h3:first-child { margin-top: 0; }
.prose p { color: var(--text-soft); }

/* ---------- 引述 ---------- */
.quote {
  position: relative;
  margin: 26px 0;
  padding: 22px 26px 22px 30px;
  border-left: 3px solid var(--gold);
  background: linear-gradient(90deg, rgba(217, 178, 106, 0.08), transparent 70%);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-family: var(--font-serif);
  font-size: 1.04rem;
  color: var(--text);
}

.quote cite {
  display: block;
  margin-top: 10px;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-style: normal;
  color: var(--muted);
  letter-spacing: 0.06em;
}

/* ---------- 时间线 ---------- */
.timeline { list-style: none; margin: 0; padding: 0 0 0 26px; border-left: 1px solid var(--line); }

.timeline li { position: relative; padding: 0 0 26px 22px; }

.timeline li::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 9px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(217, 178, 106, 0.14);
}

.timeline--eris li::before { background: var(--eris); box-shadow: 0 0 0 4px var(--eris-glow); }
.timeline--roxy li::before { background: var(--roxy); box-shadow: 0 0 0 4px var(--roxy-glow); }

.timeline__when { font-size: 0.78rem; letter-spacing: 0.16em; color: var(--muted); text-transform: uppercase; }
.timeline__what { color: var(--text-soft); margin: 2px 0 0; font-size: 0.95rem; }

/* ---------- 图集 ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 18px;
}

.tile {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--line);
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
  display: grid;
  place-items: center;
  text-align: center;
  padding: 16px;
  color: var(--muted);
  font-size: 0.82rem;
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.tile:hover { border-color: rgba(217, 178, 106, 0.5); transform: translateY(-3px); }

.tile img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }

.tile__hint { position: relative; z-index: 1; line-height: 1.6; }

/* ---------- 提示条 ---------- */
.notice {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(217, 178, 106, 0.32);
  background: rgba(217, 178, 106, 0.07);
  color: var(--text-soft);
  font-size: 0.92rem;
}

.notice strong { color: var(--text); }

.notice__icon { flex: none; color: var(--gold); font-size: 1.1rem; line-height: 1.5; }

/* ---------- 页脚 ---------- */
.footer {
  margin-top: 40px;
  border-top: 1px solid var(--line-soft);
  padding: 40px 0 46px;
  color: var(--muted);
  font-size: 0.86rem;
}

.footer__inner { display: flex; flex-wrap: wrap; gap: 18px; justify-content: space-between; align-items: flex-start; }

.footer a { color: var(--text-soft); border-bottom: 1px solid var(--line); }
.footer a:hover { color: var(--text); }

.footer__links { display: flex; gap: 16px; flex-wrap: wrap; }

.disclaimer { max-width: 66ch; line-height: 1.7; }

/* ---------- 入场动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .char-card:hover, .tile:hover, .btn:hover { transform: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .profile { grid-template-columns: 1fr; gap: 28px; }
  .profile__aside { position: static; }
  .portrait { max-width: 320px; }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  body { font-size: 15px; }
  .section { padding: 62px 0; }
  .nav__toggle { display: inline-block; }
  .nav__links {
    position: absolute;
    top: 66px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 12px 16px 18px;
    background: rgba(10, 12, 19, 0.97);
    border-bottom: 1px solid var(--line);
    display: none;
  }
  .nav__links.is-open { display: flex; }
  .nav__links a { padding: 11px 14px; border-radius: var(--radius-sm); }
  .grid--2, .grid--3 { grid-template-columns: 1fr; }
  .hero__cn { letter-spacing: 0.28em; }
  .fact-list li { grid-template-columns: 78px minmax(0, 1fr); }
}