/* 山雨剧单 — 夜雨墨色主题 */

:root {
  --ink-0: #080d13;
  --ink-1: #0d141c;
  --ink-2: #131d27;
  --ink-3: #1b2833;
  --line: #27363f;
  --line-soft: #1f2d37;
  --fg: #e2e9ec;
  --fg-dim: #9db0ba;
  --fg-faint: #6f8491;
  --jade: #74bda9;
  --jade-deep: #3f8577;
  --amber: #d9a452;
  --plum: #b4738f;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", "SimSun", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --mono: "SF Mono", "Menlo", "Consolas", monospace;
  --rail: 3px;
}

* { box-sizing: border-box; }

html {
  background: var(--ink-0);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background:
    radial-gradient(120% 70% at 12% -8%, #16242e 0%, rgba(22, 36, 46, 0) 62%),
    var(--ink-0);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.85;
  overflow-x: hidden;
}

img, svg { max-width: 100%; }
svg { display: block; height: auto; }

a {
  color: var(--jade);
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}
a:hover { color: var(--amber); }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.shell {
  width: 100%;
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 18px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--amber);
  color: var(--ink-0);
  padding: 10px 16px;
  z-index: 50;
}
.skip:focus { left: 8px; top: 8px; }

/* ── 顶部 ── */

.topbar {
  border-bottom: 1px solid var(--line-soft);
  background: rgba(8, 13, 19, 0.82);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(6px);
}

.topbar .shell {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  padding-top: 11px;
  padding-bottom: 11px;
}

.mark {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--serif);
  font-size: 1.12rem;
  letter-spacing: 0.06em;
  color: var(--fg);
  text-decoration: none;
  white-space: nowrap;
}
.mark:hover { color: var(--fg); }
.mark svg { width: 26px; height: 26px; flex: none; }

.topnav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  margin-left: auto;
  font-size: 0.88rem;
}
.topnav a {
  color: var(--fg-dim);
  text-decoration: none;
  padding: 2px 0;
  border-bottom: 1px solid transparent;
}
.topnav a:hover { color: var(--amber); border-bottom-color: var(--amber); }

/* ── 首屏 ── */

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    108deg,
    rgba(116, 189, 169, 0.09) 0px,
    rgba(116, 189, 169, 0.09) 1px,
    transparent 1px,
    transparent 16px
  );
  opacity: 0.55;
  pointer-events: none;
}

.hero .shell {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  padding-top: 46px;
  padding-bottom: 46px;
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.26em;
  color: var(--jade-deep);
  text-transform: uppercase;
  margin: 0 0 14px;
}

h1 {
  font-family: var(--serif);
  font-weight: 700;
  margin: 0 0 18px;
  line-height: 1.28;
  letter-spacing: 0.01em;
}

.h1-kw {
  display: block;
  white-space: nowrap;
  font-size: clamp(1.68rem, 6.6vw, 3rem);
  color: var(--fg);
}

.h1-tail {
  display: block;
  font-size: clamp(1rem, 3.4vw, 1.42rem);
  color: var(--jade);
  margin-top: 6px;
  font-weight: 400;
}

.lede {
  margin: 0 0 14px;
  color: var(--fg-dim);
  max-width: 44em;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.btn {
  display: inline-block;
  font: inherit;
  font-size: 0.93rem;
  padding: 10px 18px;
  border-radius: 2px;
  border: 1px solid var(--jade-deep);
  background: transparent;
  color: var(--jade);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.16s, color 0.16s, border-color 0.16s;
}
.btn:hover {
  background: var(--jade-deep);
  color: var(--ink-0);
  border-color: var(--jade-deep);
}
.btn-solid {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink-0);
  font-weight: 600;
}
.btn-solid:hover {
  background: #eab968;
  border-color: #eab968;
  color: var(--ink-0);
}
.btn-mini {
  font-size: 0.8rem;
  padding: 5px 11px;
  line-height: 1.5;
}

.hero-art {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #0f1922 0%, #0a1118 100%);
  padding: 14px;
}

/* ── 章节 ── */

section { scroll-margin-top: 64px; }

.band { border-bottom: 1px solid var(--line-soft); }
.band .shell { padding-top: 48px; padding-bottom: 48px; }
.band-alt { background: linear-gradient(180deg, rgba(19, 29, 39, 0.72), rgba(8, 13, 19, 0)); }

.sec-head { margin-bottom: 26px; }

.sec-no {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  color: var(--amber);
  display: block;
  margin-bottom: 8px;
}

h2 {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 4.1vw, 1.82rem);
  margin: 0 0 10px;
  line-height: 1.42;
  font-weight: 700;
  border-left: var(--rail) solid var(--jade-deep);
  padding-left: 14px;
}

h3 {
  font-family: var(--serif);
  font-size: 1.07rem;
  margin: 0 0 8px;
  line-height: 1.5;
  color: var(--fg);
}

.sec-note {
  color: var(--fg-dim);
  margin: 0;
  padding-left: 17px;
  max-width: 46em;
  font-size: 0.95rem;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

/* ── 表单 ── */

.picker {
  border: 1px solid var(--line);
  background: var(--ink-1);
  padding: 20px 18px;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 172px), 1fr));
  gap: 16px;
}

.field { min-width: 0; }

.field label {
  display: block;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--fg-faint);
  margin-bottom: 6px;
}

select, input[type="text"], input[type="number"] {
  width: 100%;
  font: inherit;
  font-size: 0.94rem;
  color: var(--fg);
  background: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 9px 11px;
  appearance: none;
  min-width: 0;
}
select:focus, input:focus { border-color: var(--jade); }

.picker-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}

.count-tag {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--fg-faint);
}
.count-tag b { color: var(--amber); font-weight: 600; }

/* ── 结果卡 ── */

.results {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 14px;
  margin-top: 22px;
}

.card {
  border: 1px solid var(--line);
  border-left: var(--rail) solid var(--jade-deep);
  background: var(--ink-2);
  padding: 15px 16px;
  min-width: 0;
}

.card h3 {
  margin-bottom: 4px;
  font-size: 1.12rem;
  overflow-wrap: anywhere;
}

.card-meta {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--fg-faint);
  margin-bottom: 10px;
  overflow-wrap: anywhere;
}

.card-blurb {
  font-size: 0.93rem;
  color: var(--fg);
  margin: 0 0 10px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.chip {
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  border: 1px solid var(--line);
  color: var(--fg-dim);
  padding: 2px 8px;
  border-radius: 999px;
  white-space: nowrap;
}
.chip-jade { border-color: var(--jade-deep); color: var(--jade); }
.chip-amber { border-color: #6b522a; color: var(--amber); }
.chip-plum { border-color: #6a4454; color: var(--plum); }

.card-line {
  font-size: 0.85rem;
  color: var(--fg-dim);
  margin: 0 0 6px;
}
.card-line b { color: var(--fg); font-weight: 600; }

.card-foot {
  margin-top: 12px;
  padding-top: 11px;
  border-top: 1px dashed var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.empty {
  border: 1px dashed var(--line);
  padding: 18px;
  color: var(--fg-dim);
  font-size: 0.93rem;
  margin-top: 22px;
}

.relaxed-note {
  margin-top: 20px;
  border-left: var(--rail) solid var(--amber);
  background: rgba(217, 164, 82, 0.08);
  padding: 11px 14px;
  font-size: 0.89rem;
  color: var(--fg-dim);
}

/* ── 进度表 ── */

.tracker { display: grid; gap: 18px; }

.tracker-add {
  border: 1px solid var(--line);
  background: var(--ink-1);
  padding: 18px;
}

.add-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 170px), 1fr));
  gap: 14px;
  align-items: end;
}

.track-list { display: grid; gap: 10px; }

.track-row {
  border: 1px solid var(--line);
  background: var(--ink-2);
  padding: 13px 15px;
  display: grid;
  gap: 9px;
  min-width: 0;
}

.track-top {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  align-items: baseline;
  min-width: 0;
}

.track-name {
  font-family: var(--serif);
  font-size: 1.03rem;
  overflow-wrap: anywhere;
}

.track-num {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--amber);
  margin-left: auto;
  white-space: nowrap;
}

.bar {
  height: 6px;
  background: var(--ink-3);
  border-radius: 999px;
  overflow: hidden;
}
.bar > i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--jade-deep), var(--jade));
  border-radius: 999px;
}

.track-ctrl {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  align-items: center;
}

.track-ctrl .num {
  width: 74px;
  flex: none;
  padding: 5px 8px;
  font-size: 0.85rem;
}

.step {
  font: inherit;
  font-size: 0.86rem;
  line-height: 1;
  width: 30px;
  height: 30px;
  border: 1px solid var(--line);
  background: var(--ink-3);
  color: var(--fg);
  cursor: pointer;
  border-radius: 2px;
}
.step:hover { border-color: var(--jade); color: var(--jade); }

.kill {
  font: inherit;
  font-size: 0.78rem;
  background: none;
  border: none;
  color: var(--fg-faint);
  cursor: pointer;
  margin-left: auto;
  padding: 4px 2px;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.kill:hover { color: var(--plum); }

.storage-note {
  border: 1px dashed var(--line);
  padding: 13px 15px;
  font-size: 0.86rem;
  color: var(--fg-dim);
  background: rgba(116, 189, 169, 0.04);
}
.storage-note b { color: var(--jade); font-weight: 600; }

/* ── 渠道 ── */

.ch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 268px), 1fr));
  gap: 16px;
}

.ch {
  border: 1px solid var(--line);
  background: var(--ink-1);
  padding: 18px 17px;
  min-width: 0;
  display: grid;
  gap: 10px;
  align-content: start;
}

.ch-ico {
  width: 46px;
  height: 46px;
  flex: none;
}

.ch dl { margin: 0; display: grid; gap: 7px; }
.ch dt {
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--amber);
  font-family: var(--mono);
}
.ch dd {
  margin: 0;
  font-size: 0.9rem;
  color: var(--fg-dim);
  line-height: 1.75;
}

/* ── 清单 ── */

.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: ck;
}

.checklist li {
  counter-increment: ck;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 12px;
}
.checklist li:last-child { border-bottom: none; padding-bottom: 0; }

.checklist li::before {
  content: counter(ck, decimal-leading-zero);
  grid-column: 1;
  grid-row: 1 / span 2;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--jade-deep);
  padding-top: 4px;
}

.checklist strong {
  grid-column: 2;
  display: block;
  font-family: var(--serif);
  font-size: 1.02rem;
  color: var(--fg);
  font-weight: 700;
}

.checklist span {
  grid-column: 2;
  display: block;
  font-size: 0.91rem;
  color: var(--fg-dim);
}

/* ── 风险 ── */

.risk-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: start;
}

.risk-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.risk-list li {
  border-left: var(--rail) solid var(--plum);
  padding-left: 14px;
  min-width: 0;
}
.risk-list b {
  display: block;
  font-family: var(--serif);
  color: var(--fg);
  font-size: 1rem;
}
.risk-list span {
  display: block;
  font-size: 0.91rem;
  color: var(--fg-dim);
}

.risk-art {
  border: 1px solid var(--line);
  background: var(--ink-1);
  padding: 16px;
}

/* ── 数据说明 ── */

.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: 16px;
}

.fact {
  border-top: 1px solid var(--line);
  padding-top: 13px;
  min-width: 0;
}
.fact h3 { font-size: 1rem; }
.fact p { font-size: 0.9rem; color: var(--fg-dim); margin: 0; }

/* ── 页脚 ── */

footer {
  background: var(--ink-0);
  border-top: 1px solid var(--line-soft);
}
footer .shell {
  padding-top: 30px;
  padding-bottom: 38px;
  display: grid;
  gap: 12px;
}
.foot-mark {
  font-family: var(--serif);
  letter-spacing: 0.08em;
  color: var(--fg-dim);
}
.foot-note {
  font-size: 0.84rem;
  color: var(--fg-faint);
  margin: 0;
  max-width: 50em;
}

/* ── 404 ── */

.lost .shell {
  padding-top: 64px;
  padding-bottom: 58px;
}
.lost-art { max-width: 300px; margin-bottom: 26px; }
.lost-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

/* ── 宽屏 ── */

@media (min-width: 860px) {
  .ch-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero .shell {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: center;
    padding-top: 64px;
    padding-bottom: 64px;
  }
  .risk-wrap { grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr); }
  .band .shell { padding-top: 62px; padding-bottom: 62px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}