/* =========================================================
   Mydream 主页样式
   视觉：星月夜(蓝) → 向日葵(暖) 渐变 + SVG 笔触 + 星点/暖光
   纯 CSS/SVG，无外部依赖；桌面横排三栏，手机竖排
   ========================================================= */

:root {
  --ink:      #eef3fb;
  --ink-dim:  rgba(238, 243, 251, 0.74);
  --serif:    "Songti SC", "STSong", "Noto Serif CJK SC",
              "Source Han Serif SC", "SimSun", serif;
  --sans:     -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
              "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --line:     rgba(255, 255, 255, 0.16);
  --dream:    #aecbff;
  --murmur:   #d9e4ff;
  --wake:     #ffd98a;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background: #0a1834;
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ================= 背景天空 ================= */
.sky {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background: linear-gradient(115deg,
    #081226 0%, #102a55 30%, #1f4474 55%,
    #6a5d74 72%, #c0803f 86%, #f2c457 100%);
}
.sky svg { display: block; }

.sky .veil {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(130% 95% at 50% -12%, transparent 42%, rgba(2, 6, 18, 0.55) 100%),
    radial-gradient(90% 70% at 86% 116%, rgba(36, 20, 2, 0.38), transparent 62%);
}

/* 星点闪烁（SVG 内 circle 使用） */
.paint .star {
  transform-box: fill-box;
  transform-origin: center;
  animation: twinkle 3.6s ease-in-out infinite;
}
@keyframes twinkle {
  0%, 100% { opacity: 0.08; }
  50%      { opacity: 0.95; }
}

/* ================= 页面框架 ================= */
.page {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 28px 40px;
}

/* ---------- 顶部标题区 ---------- */
.hero {
  padding: 8.5vh 0 4vh;
  text-align: center;
}
.hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2.4rem, 6.5vw, 4.4rem);
  letter-spacing: 0.14em;
  text-indent: 0.14em;
  text-shadow: 0 2px 26px rgba(3, 10, 30, 0.6);
  animation: rise 1s ease both;
}
.hero-sub {
  margin: 0.9rem 0 0;
  color: var(--ink-dim);
  letter-spacing: 0.4em;
  text-indent: 0.4em;
  font-size: clamp(0.8rem, 1.8vw, 1.02rem);
  animation: rise 1s 0.15s ease both;
}
.hero-nav {
  margin-top: 2.4rem;
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  animation: rise 1s 0.3s ease both;
}
.hero-nav a {
  color: var(--ink);
  text-decoration: none;
  padding: 0.45em 1.15em;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(6px);
  font-size: 0.9rem;
  letter-spacing: 0.22em;
  text-indent: 0.22em;
}
.hero-nav a:hover { background: rgba(255, 255, 255, 0.16); }

@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: none; }
}

/* ================= 三栏专栏 ================= */
.columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 3vh;
  align-items: start;
}

.col {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px 24px 26px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.035));
  backdrop-filter: blur(10px);
  box-shadow: 0 18px 50px rgba(2, 8, 24, 0.28);
  overflow: hidden;
  transition: opacity 0.7s ease, transform 0.7s ease;
}
/* 仅在 JS 可用时做进场渐显（无 JS 则默认直接可见） */
.js .col { opacity: 0; transform: translateY(18px); }
.js .col.in { opacity: 1; transform: none; }

/* 栏顶渐变细线 + 色标 */
.col::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent, #aecbff), transparent);
}
.col--dream  { --accent: var(--dream); }
.col--murmur { --accent: var(--murmur); }
.col--wake   { --accent: var(--wake); }

.col h2 {
  margin: 0.05em 0 0.15em;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  letter-spacing: 0.16em;
  text-indent: 0.16em;
  line-height: 1.25;
}
.col .motto {
  margin: 0 0 20px;
  color: var(--ink-dim);
  font-size: 0.95rem;
  line-height: 2;
}
/* ---------- 作品列表 ---------- */
.works {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.works .empty {
  color: var(--ink-dim);
  border: 1px dashed rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: 18px 12px;
  text-align: center;
  font-size: 0.88rem;
  letter-spacing: 0.25em;
  text-indent: 0.25em;
}

.work {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
  padding: 13px 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.05);
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}
.work:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.13);
  border-color: rgba(255, 255, 255, 0.3);
}

.work .w-info { display: flex; flex-direction: column; min-width: 0; }
.work .w-title {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.work .w-note {
  color: var(--ink-dim);
  font-size: 0.78rem;
  line-height: 1.5;
  margin-top: 3px;
  display: -webkit-box;
  line-clamp: 2;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.work .w-badge {
  flex: none;
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  color: var(--ink-dim);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1px 6px;
  text-transform: uppercase;
}
.work .w-go {
  flex: none;
  margin-left: auto;
  color: var(--accent, var(--wake));
  font-size: 1rem;
  opacity: 0.85;
}

/* ---------- 页脚 ---------- */
.page-footer {
  margin-top: 7vh;
  padding-top: 18px;
  text-align: center;
  color: var(--ink-dim);
  font-size: 0.82rem;
  letter-spacing: 0.2em;
}
.page-footer .os-entry {
  display: inline-block;
  margin-top: 6px;
  color: var(--dream, #aecbff);
  font-size: 0.8rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(174, 203, 255, 0.45);
  transition: color 0.25s ease, border-color 0.25s ease;
}
.page-footer .os-entry:hover {
  color: var(--wake, #ffd98a);
  border-bottom-color: rgba(255, 217, 138, 0.6);
}

/* ================= 响应式 ================= */
@media (max-width: 900px) {
  .hero { padding: 7vh 0 3vh; }
  .columns { grid-template-columns: 1fr; gap: 16px; margin-top: 2vh; }
  .col--wake { margin-bottom: 2vh; }
}

/* 手机竖排：把「醒」放在最下，背景改为上蓝下暖 */
@media (max-width: 640px) {
  .page { padding: 0 16px 28px; }
  .sky { background: linear-gradient(180deg,
    #081226 0%, #102a55 26%, #1f4474 48%,
    #7a6459 66%, #c0803f 84%, #f2c457 100%); }
  .sky .paint { display: none; }
}

/* 减弱动画偏好 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .paint .star { animation: none; }
  .hero h1, .hero-sub, .hero-nav { animation: none; }
  .col { opacity: 1; transform: none; transition: none; }
  .work { transition: none; }
}