/* ============================================
   胤捷的小破站 v4 —— 手工 CSS
   特性：纸感、歪卡片、手画下划线、零框架
   原则：能用手写解决的，绝不装插件
   ============================================ */

:root {
  --paper: #f7f3ea;          /* 旧纸 */
  --ink: #1c1b18;            /* 墨 */
  --ink-soft: #6b665a;       /* 淡墨 */
  --red: #b3392b;            /* 朱砂 */
  --green: #3d6b4f;          /* 苔绿 */
  --line: #d8d0bd;           /* 虚线 */
  --serif: "Iowan Old Style", "Palatino Linotype", "Noto Serif SC",
           "Songti SC", "SimSun", serif;
  --mono: "SF Mono", "Cascadia Code", "Fira Code", "Courier New", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.75;
}

/* ---- 纸质噪点，盖在整页上（鼠标点不到它） ---- */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: .06;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px;
}

a { color: var(--red); }

/* ---- 手画下划线（hover 变粗，假装认真了） ---- */
a:not(.logo):not(.card):not(.friend) {
  text-decoration: none;
  background-image: linear-gradient(to right, var(--red) 60%, #e9c46a);
  background-repeat: no-repeat;
  background-size: 100% .12em;
  background-position: 0 90%;
  transition: background-size .25s ease;
}
a:not(.logo):not(.card):not(.friend):hover {
  background-size: 100% .32em;
}

/* ---- 顶部 ---- */
.site-head { border-bottom: 2px dashed var(--line); padding-top: 28px; }

.head-flex {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--ink);
  text-decoration: none;
}
.logo .ver {
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--red);
  vertical-align: super;
  margin-left: 6px;
  border: 1px solid var(--red);
  padding: 0 4px;
  border-radius: 3px;
}

.tagline { font-size: .85rem; color: var(--ink-soft); }

.nav { margin-top: 18px; border-top: 1px solid var(--line); }
.nav .wrap {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
  font-size: .95rem;
  padding-top: 10px;
  padding-bottom: 10px;
}
.nav a { color: var(--ink-soft); background-image: none; }
.nav a:hover { color: var(--red); }
.nav a.on { color: var(--ink); font-weight: 700; }
.nav a.on::before { content: "※ "; color: var(--red); }

.clock {
  margin-left: auto;
  font-family: var(--mono);
  font-size: .8rem;
  color: var(--ink-soft);
  letter-spacing: .1em;
}

/* ---- 主页 hero ---- */
.hero { padding: 48px 0 10px; }

.kicker {
  font-family: var(--mono);
  font-size: .8rem;
  color: var(--green);
}

h1 { font-size: 2.3rem; margin: .4em 0 .5em; font-weight: 700; }
h1 em {
  font-style: normal;
  background: #e9c46a;
  padding: 0 .15em;
  border-radius: 3px;
}

.lead { font-size: 1.08rem; }
.note {
  font-size: .85rem;
  color: var(--ink-soft);
  border-left: 3px solid var(--red);
  padding-left: 12px;
  margin-top: 26px;
}

/* ---- 三个入口卡片（故意歪一点点） ---- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
  margin: 40px 0;
}

.card {
  display: block;
  border: 1.5px solid var(--ink);
  border-radius: 6px;
  padding: 20px 18px 16px;
  background: #fdfbf4;
  text-decoration: none;
  color: var(--ink);
  box-shadow: 4px 4px 0 rgba(28,27,24,.12);
  transition: transform .15s ease, box-shadow .15s ease;
}
.card:nth-child(odd) { transform: rotate(-.5deg); }
.card:nth-child(even) { transform: rotate(.5deg); }
.card:hover {
  transform: rotate(0) translateY(-3px);
  box-shadow: 6px 6px 0 rgba(179,57,43,.25);
}
.card-num { font-family: var(--mono); font-size: .75rem; color: var(--red); }
.card h2 { margin: 6px 0 8px; font-size: 1.2rem; }
.card p { margin: 0; font-size: .9rem; color: var(--ink-soft); }

/* ---- 通用小节标题 ---- */
.h-mark { color: var(--red); margin-right: 4px; }

section { margin: 44px 0; }

.muted { color: var(--ink-soft); font-size: .88rem; }

.date { font-family: var(--mono); font-size: .78rem; color: var(--ink-soft); margin-left: 10px; }

.more { font-size: .9rem; }

/* ---- 留言板 ---- */
.guestbook form {
  display: grid;
  gap: 10px;
  max-width: 460px;
  margin-top: 18px;
}
.guestbook input,
.guestbook textarea {
  font-family: var(--serif);
  font-size: .95rem;
  padding: 10px 12px;
  border: 1.5px solid var(--line);
  border-radius: 4px;
  background: #fdfbf4;
  color: var(--ink);
}
.guestbook input:focus,
.guestbook textarea:focus {
  outline: none;
  border-color: var(--red);
}
.guestbook button {
  justify-self: start;
  font-family: var(--serif);
  font-size: .95rem;
  padding: 8px 26px;
  border: 1.5px solid var(--ink);
  border-radius: 4px;
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
}
.guestbook button:hover { background: var(--red); border-color: var(--red); }

.gb-list { list-style: none; padding: 0; margin-top: 26px; }
.gb-list li {
  border: 1px dashed var(--line);
  border-radius: 6px;
  padding: 12px 14px;
  margin-bottom: 10px;
  background: #fdfbf4;
}
.gb-list .gb-who {
  font-family: var(--mono);
  font-size: .8rem;
  color: var(--green);
  display: block;
  margin-bottom: 4px;
}
.gb-list .gb-when { font-size: .75rem; color: var(--ink-soft); margin-left: 8px; }

/* ---- 页脚 ---- */
.site-foot {
  border-top: 2px dashed var(--line);
  margin-top: 60px;
  padding: 26px 0 40px;
  font-size: .88rem;
}
.site-foot p { margin: .35em 0; }

/* ---- 内页通用 ---- */
.page { padding-top: 34px; }
.page h1 { font-size: 2rem; }

.fact-list li { margin-bottom: .5em; }

/* ---- 技能条 ---- */
.skill { margin-bottom: 18px; }
.s-name { font-weight: 700; display: block; margin-bottom: 4px; }
.s-bar {
  height: 14px;
  border: 1.5px solid var(--ink);
  border-radius: 4px;
  background: #efe9da;
  overflow: hidden;
}
.s-bar i {
  display: block;
  height: 100%;
  background: repeating-linear-gradient(
    -45deg, var(--red) 0 6px, #c94f3f 6px 12px
  );
}
.s-note { font-size: .8rem; color: var(--ink-soft); }

/* ---- 时间线 ---- */
.timeline ul { list-style: none; padding: 0; }
.timeline li {
  border-left: 2px solid var(--line);
  padding: 4px 0 18px 18px;
  position: relative;
}
.timeline li::before {
  content: "";
  position: absolute;
  left: -7px; top: 10px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--red);
}

/* ---- 文章展开 ---- */
.note {
  border: 1.5px solid var(--line);
  border-radius: 8px;
  padding: 18px 20px;
  margin-bottom: 22px;
  background: #fdfbf4;
}
.note-title { margin: 0; font-size: 1.15rem; }
.note-title button {
  border: none;
  background: none;
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  padding: 0;
  text-align: left;
}
.note-title button::after { content: " ＋"; color: var(--red); }
.note.open .note-title button::after { content: " －"; }
.note-meta { font-size: .78rem; color: var(--ink-soft); margin: 6px 0 0; }
.note-body { display: none; margin-top: 12px; }
.note.open .note-body { display: block; }

/* ---- 项目页 ---- */
.project {
  border: 1.5px solid var(--line);
  border-left: 4px solid var(--ink);
  border-radius: 6px;
  padding: 16px 18px;
  margin-bottom: 20px;
  background: #fdfbf4;
}
.p-head { display: flex; justify-content: space-between; align-items: baseline; }
.p-head h2 { margin: 0; font-size: 1.2rem; }
.p-year { font-family: var(--mono); font-size: .78rem; color: var(--ink-soft); }
.tech {
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--ink-soft);
  margin-top: 8px;
}

.st {
  font-size: .75rem;
  font-family: var(--mono);
  border-radius: 3px;
  padding: 1px 8px;
  margin-left: 6px;
  vertical-align: middle;
}
.st.ok   { background: #dde8dd; color: var(--green); border: 1px solid var(--green); }
.st.meh  { background: #f3e8cf; color: #8a6d1f; border: 1px solid #b8933a; }
.st.dead { background: #efdeda; color: var(--red); border: 1px solid var(--red); }

/* ---- 友链 ---- */
.link-list { list-style: none; padding: 0; }
.link-list li {
  border: 1px dashed var(--line);
  border-radius: 6px;
  padding: 14px 16px;
  margin-bottom: 14px;
  background: #fdfbf4;
}
.friend { font-weight: 700; font-size: 1.05rem; background-image: none; }
.link-list p { margin: 6px 0 0; }

/* ---- 404 ---- */
body.lost { display: flex; align-items: center; min-height: 100vh; }
.lost-box { padding: 40px 20px; }
.lost-box h1 { font-size: 2.4rem; }

.back { margin-top: 50px; }

/* ---- 小屏 ---- */
@media (max-width: 560px) {
  body { font-size: 16px; }
  h1 { font-size: 1.8rem; }
  .clock { display: none; }
}

/* ---- 作弊模式（Konami 触发，别问为什么会有） ---- */
body.cheat-mode {
  transform: rotate(180deg);
  transition: transform .6s ease;
}
body.cheat-mode .site-head,
body.cheat-mode .site-foot { opacity: .6; }