/* 澄弦 · 学习规划 —— 温柔夕阳黄主题（与澄弦站同源） */
:root {
  --bg: #fff6e8;
  --bg2: #ffe9cf;
  --card: rgba(255, 252, 246, .72);
  --card-bd: rgba(224, 166, 105, .28);
  --txt: #6b4a2f;
  --mut: #a5835f;
  --acc: #e8915a;      /* 落日橙 */
  --acc2: #f7b96b;     /* 杏金黄 */
  --pink: #f6a288;     /* 蜜桃 */
  --gold: #ffd9a0;
  --deep: #8a5a34;     /* 深暖棕 */
  --r: 20px;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--txt);
  font-family: var(--sans);
  background:
    radial-gradient(1100px 520px at 12% -8%, rgba(255, 205, 140, .55), transparent 62%),
    radial-gradient(900px 540px at 112% 12%, rgba(255, 165, 120, .35), transparent 58%),
    radial-gradient(800px 640px at 50% 118%, rgba(255, 220, 160, .45), transparent 60%),
    linear-gradient(180deg, var(--bg), var(--bg2) 55%, #ffedd6);
  background-attachment: fixed;
  overflow-x: hidden;
}

/* ============ 导航栏 ============ */
.nav {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255, 246, 232, .82);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(224, 166, 105, .22);
}
.nav-in {
  max-width: 1080px; margin: 0 auto; padding: 0 20px;
  height: 58px; display: flex; align-items: center; justify-content: space-between;
}
.brand {
  font-family: var(--serif);
  font-size: 20px; font-weight: 700; letter-spacing: .18em;
  color: var(--deep); text-decoration: none;
}
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a {
  color: var(--mut); text-decoration: none; font-size: 14px; letter-spacing: .08em;
  transition: color .18s ease;
}
.nav-links a:hover { color: var(--acc); }
.nav-admin {
  width: 32px; height: 32px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255, 217, 160, .4); border: 1px solid rgba(224, 166, 105, .35);
  font-size: 15px !important; cursor: pointer; color: var(--mut);
}
.nav-admin:hover { background: rgba(255, 217, 160, .7); }

/* ============ Hero 主视觉 ============ */
.hero {
  position: relative;
  text-align: center;
  padding: 96px 20px 56px;
  overflow: hidden;
}
.hero-glow {
  position: absolute; left: 50%; top: -220px; transform: translateX(-50%);
  width: 760px; height: 520px; z-index: 0;
  background: radial-gradient(closest-side, rgba(255, 200, 130, .5), rgba(255, 190, 120, .22), transparent 72%);
  animation: sunbreathe 6s ease-in-out infinite;
  pointer-events: none;
}
@keyframes sunbreathe {
  0%, 100% { opacity: .75; transform: translateX(-50%) scale(1); }
  50% { opacity: 1; transform: translateX(-50%) scale(1.06); }
}
.hero-in { position: relative; z-index: 1; }
.avatar-ring {
  width: 172px; height: 172px; margin: 0 auto 26px;
  border-radius: 50%; padding: 6px;
  background: conic-gradient(from 210deg, var(--acc), var(--gold), var(--pink), var(--acc));
  box-shadow: 0 0 46px rgba(232, 145, 90, .5), 0 0 100px rgba(255, 200, 130, .32);
  animation: glow 5s ease-in-out infinite;
}
.avatar { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; display: block; background: #ffe7c4; }
@keyframes glow {
  0%, 100% { box-shadow: 0 0 38px rgba(232,145,90,.42), 0 0 88px rgba(255,200,130,.24); }
  50% { box-shadow: 0 0 56px rgba(232,145,90,.66), 0 0 120px rgba(255,217,160,.42); }
}
.name {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: clamp(44px, 8vw, 68px);
  font-weight: 700;
  letter-spacing: .1em;
  background: linear-gradient(120deg, #c96f36 12%, #e8915a 55%, #d9a13c 95%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.tagline { margin: 0 0 16px; color: var(--mut); font-size: 16px; letter-spacing: .16em; }
.tags { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.tag {
  padding: 5px 14px; border-radius: 999px;
  border: 1px solid rgba(232, 145, 90, .45);
  background: rgba(255, 217, 160, .35);
  color: #b06a34; font-size: 13px; letter-spacing: .04em;
}
.hero-cta .btn {
  display: inline-block; padding: 12px 34px; border-radius: 999px;
  color: #fff8ec; font-weight: 600; text-decoration: none; font-size: 15px;
  background: linear-gradient(120deg, var(--acc), var(--acc2));
  box-shadow: 0 8px 26px rgba(232, 145, 90, .42);
  transition: transform .18s ease, box-shadow .18s ease;
}
.hero-cta .btn:hover { transform: translateY(-2px); box-shadow: 0 12px 34px rgba(232, 145, 90, .55); }

/* ============ 内容分区 ============ */
.section { max-width: 1080px; margin: 0 auto; padding: 44px 20px 8px; }
.sec-title {
  display: flex; align-items: center; gap: 10px;
  margin: 0 0 18px;
  font-family: var(--serif);
  font-size: 24px; letter-spacing: .12em;
  color: var(--deep);
}
.deco { width: 26px; height: 3px; border-radius: 3px; background: linear-gradient(90deg, var(--acc), var(--gold)); }
.stk-head { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.hint { color: var(--mut); font-size: 12.5px; margin: 4px 0; }

.card {
  background: var(--card);
  border: 1px solid var(--card-bd);
  border-radius: var(--r);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 10px 30px rgba(190, 130, 70, .1);
}

/* ============ 统计 ============ */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; }
.stat { padding: 18px 18px; text-align: center; }
.stat-k { font-size: 12px; color: var(--mut); letter-spacing: .2em; margin-bottom: 6px; }
.stat-v { font-size: 16px; color: var(--txt); font-weight: 600; }
.stat-v span { font-size: 24px; }

/* ============ 任务 ============ */
.task-card { padding: 20px 22px 24px; }
.task-progress {
  height: 8px; border-radius: 999px;
  background: rgba(224, 166, 105, .22);
  overflow: hidden; margin-bottom: 18px;
}
.task-progress-bar {
  height: 100%; width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--acc), var(--acc2));
  transition: width .4s ease;
}
.task-add { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.task-input {
  flex: 1; min-width: 220px;
  padding: 11px 16px; border-radius: 999px;
  border: 1px solid rgba(224, 166, 105, .45);
  background: rgba(255, 255, 255, .7);
  color: var(--txt); font-size: 14.5px; font-family: var(--sans);
  outline: none; transition: border-color .18s ease, box-shadow .18s ease;
}
.task-input:focus { border-color: var(--acc); box-shadow: 0 0 0 3px rgba(232, 145, 90, .16); }
.task-input::placeholder { color: #c9ab8a; }
.task-subject {
  padding: 10px 16px; border-radius: 999px;
  border: 1px solid rgba(224, 166, 105, .45);
  background: rgba(255, 255, 255, .7);
  color: var(--deep); font-size: 14px; font-family: var(--sans);
  outline: none; cursor: pointer;
}

.btn {
  display: inline-block; padding: 10px 26px; border-radius: 999px;
  color: #fff8ec; font-weight: 600; text-decoration: none; font-size: 14.5px;
  border: 0; cursor: pointer; font-family: var(--sans);
  background: linear-gradient(120deg, var(--acc), var(--acc2));
  box-shadow: 0 6px 22px rgba(232, 145, 90, .4);
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(232, 145, 90, .5); }
.btn-sm { padding: 10px 20px; }
.btn-ghost {
  background: rgba(255, 217, 160, .35); color: #b06a34;
  box-shadow: none; border: 1px solid rgba(224, 166, 105, .4);
}
.btn-ghost:hover { box-shadow: none; filter: brightness(.97); }

/* 筛选 */
.task-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.tf {
  padding: 4px 13px; border-radius: 999px; border: 1px solid rgba(224, 166, 105, .4);
  background: transparent; color: var(--mut); font-size: 12.5px; cursor: pointer;
  transition: all .18s ease; font-family: var(--sans);
}
.tf.on { background: rgba(255, 217, 160, .5); color: #b06a34; border-color: rgba(232, 145, 90, .55); }

/* 任务列表 */
.task-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.task-item {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 14px;
  border: 1px solid rgba(224, 166, 105, .22);
  border-radius: 14px;
  background: rgba(255, 255, 255, .55);
  transition: background .18s ease, border-color .18s ease;
}
.task-item:hover { border-color: rgba(232, 145, 90, .45); background: rgba(255, 255, 255, .8); }
.t-check {
  width: 22px; height: 22px; flex: 0 0 22px; border-radius: 50%;
  border: 2px solid rgba(232, 145, 90, .6); background: transparent;
  cursor: pointer; position: relative; transition: all .18s ease;
}
.t-check::after {
  content: "✓"; position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 13px; font-weight: 700; opacity: 0;
}
.task-item.done .t-check { background: linear-gradient(120deg, var(--acc), var(--acc2)); border-color: transparent; }
.task-item.done .t-check::after { opacity: 1; }
.t-text { flex: 1; font-size: 14.5px; color: var(--txt); transition: color .18s ease; }
.task-item.done .t-text { color: #c2a283; text-decoration: line-through; }
.t-subject {
  padding: 2px 11px; border-radius: 999px; font-size: 12px;
  background: rgba(255, 217, 160, .4); color: #b06a34; cursor: pointer;
  border: 1px solid rgba(224, 166, 105, .35); font-family: var(--sans);
  transition: all .18s ease;
}
.t-subject:hover { background: rgba(255, 217, 160, .7); }
.t-del {
  width: 26px; height: 26px; border-radius: 50%; border: 0;
  background: transparent; color: #caa887; font-size: 15px; cursor: pointer;
  transition: all .18s ease; line-height: 1;
}
.t-del:hover { background: rgba(232, 145, 90, .18); color: var(--acc); }

/* ============ 科目 ============ */
.subj-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.subj { padding: 20px 22px; }
.subj-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.subj-name { font-size: 15.5px; font-weight: 600; color: var(--deep); display: flex; align-items: center; gap: 8px; }
.subj-ico { font-size: 20px; }
.subj-pct { font-size: 13px; color: var(--mut); font-weight: 600; }
.subj-bar {
  height: 8px; border-radius: 999px; background: rgba(224, 166, 105, .22);
  overflow: hidden; margin-bottom: 8px;
}
.subj-fill {
  height: 100%; width: 0; border-radius: 999px;
  background: linear-gradient(90deg, var(--acc), var(--acc2));
  transition: width .5s ease;
}
.subj-meta { font-size: 12px; color: var(--mut); }
.subj-meta em { font-style: normal; color: var(--acc); font-weight: 600; }

/* ============ 专注 ============ */
.focus-card { padding: 28px 22px; display: flex; gap: 34px; align-items: center; flex-wrap: wrap; justify-content: center; }
.focus-ring-wrap { position: relative; width: 200px; height: 200px; }
.focus-ring { width: 200px; height: 200px; transform: rotate(-90deg); }
.ring-bg { fill: none; stroke: rgba(224, 166, 105, .22); stroke-width: 10; }
.ring-fg {
  fill: none; stroke: url(#grad) var(--acc); stroke-width: 10; stroke-linecap: round;
  stroke: var(--acc);
  stroke-dasharray: 553; stroke-dashoffset: 0;
  transition: stroke-dashoffset .6s linear;
}
.focus-time {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: 40px; font-weight: 700; color: var(--deep); font-family: var(--serif);
  letter-spacing: .06em;
}
.focus-state {
  position: absolute; left: 0; right: 0; bottom: 42px; text-align: center;
  font-size: 12px; color: var(--mut); letter-spacing: .18em;
}
.focus-controls { flex: 1; min-width: 260px; max-width: 420px; }
.focus-modes { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.fm {
  padding: 7px 16px; border-radius: 999px; cursor: pointer;
  border: 1px solid rgba(224, 166, 105, .4); background: transparent;
  color: var(--mut); font-size: 13px; transition: all .18s ease; font-family: var(--sans);
}
.fm.on { background: linear-gradient(120deg, var(--acc), var(--acc2)); color: #fff8ec; border-color: transparent; font-weight: 600; box-shadow: 0 5px 16px rgba(232, 145, 90, .35); }
.focus-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.focus-row .btn { padding: 10px 24px; }

/* ============ 周计划 ============ */
.week-grid {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 10px;
}
.wday {
  padding: 14px 8px; text-align: center; cursor: pointer;
  border-radius: 16px; transition: all .2s ease;
}
.wday:hover { transform: translateY(-3px); border-color: rgba(232, 145, 90, .5); }
.wday.today {
  border-color: rgba(232, 145, 90, .6);
  background: linear-gradient(160deg, rgba(255, 217, 160, .55), rgba(255, 236, 205, .5));
  box-shadow: 0 8px 24px rgba(232, 145, 90, .22);
}
.wday.sel { border-color: var(--acc); outline: 2px solid rgba(232, 145, 90, .35); }
.w-name { font-size: 13px; color: var(--mut); letter-spacing: .1em; }
.w-date { font-size: 12px; color: #c2a283; margin: 2px 0 8px; }
.w-count { font-size: 12.5px; color: var(--txt); font-weight: 600; }
.w-count em { font-style: normal; color: var(--acc); }

/* ============ 空状态 ============ */
.empty { padding: 36px 20px; text-align: center; }
.empty-emoji { font-size: 40px; margin-bottom: 8px; }
.empty p { margin: 4px 0; color: var(--txt); }
.empty-sub { color: var(--mut); font-size: 13px; margin-bottom: 0 !important; }

/* ============ 提示浮层 ============ */
.toast {
  position: fixed; left: 50%; bottom: 30px; transform: translateX(-50%) translateY(80px);
  z-index: 60; padding: 11px 22px; border-radius: 999px;
  background: rgba(107, 74, 47, .92); color: #fff4e0; font-size: 13.5px;
  box-shadow: 0 10px 34px rgba(80, 50, 20, .35);
  opacity: 0; transition: all .3s ease; pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ============ 页脚 ============ */
.foot {
  background: linear-gradient(180deg, rgba(255, 226, 190, .5), rgba(240, 198, 150, .42));
  border-top: 1px solid rgba(180, 120, 60, .22);
  padding: 40px 0 26px; margin-top: 56px;
}
.foot-in {
  max-width: 1080px; margin: 0 auto; padding: 0 20px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px;
}
.foot-name {
  font-family: var(--serif); font-size: 19px; font-weight: 700; letter-spacing: .16em; color: var(--deep);
}
.foot-sub { display: block; margin-top: 4px; color: var(--mut); font-size: 12.5px; letter-spacing: .1em; }
.foot-links { display: flex; gap: 20px; }
.foot-links a { color: var(--mut); text-decoration: none; font-size: 13.5px; cursor: pointer; }
.foot-links a:hover { color: var(--acc); }
.foot-admin {
  padding: 6px 16px; border-radius: 999px;
  border: 1px solid rgba(224, 166, 105, .4);
  background: rgba(255, 217, 160, .35);
}
.foot-copy {
  max-width: 1080px; margin: 22px auto 0; padding: 0 20px;
  color: rgba(138, 90, 52, .6); font-size: 12px; letter-spacing: .06em;
}

@media (max-width: 720px) {
  .week-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 560px) {
  .hero { padding: 64px 16px 48px; }
  .avatar-ring { width: 132px; height: 132px; }
  .nav-links { gap: 14px; }
  .nav-links a { font-size: 13px; }
  .foot-in { justify-content: center; text-align: center; }
  .focus-card { padding: 22px 16px; }
}