/* 核桃胶囊官网 · 黑白杂志编辑风
   纸底 #F7F5F0 / 墨黑 #15130F / 朱红 #C8402B / 思源宋体大字 / 极细分割线
   prefix: wc
*/

.section { padding-top: 120px; padding-bottom: 120px; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; }


/* ---------- 刊头 ---------- */
.masthead {
  border-bottom: 1px solid var(--wc-border);
  background: var(--wc-background);
}
.masthead__inner {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  height: 38px;
  font-family: var(--wc-font-sans);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--wc-ink-3);
}
.masthead__title { color: var(--wc-ink-2); }
.masthead__meta { display: flex; gap: 26px; font-family: var(--wc-font-mono); font-size: 9px; letter-spacing: 0.16em; }
.masthead__meta span + span { position: relative; padding-left: 28px; }
.masthead__meta span + span::before {
  content: "·"; position: absolute; left: 0; color: var(--wc-border-strong);
}

/* ---------- 导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 68px;
  background-color: var(--wc-nav-bg);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--wc-border);
}
.nav__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__link {
  font-family: var(--wc-font-sans);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--wc-ink-2);
  text-decoration: none;
  transition: color 160ms cubic-bezier(0.2, 0.8, 0.2, 1);
}
.nav__link:hover { color: var(--wc-primary); }
.nav__link:focus-visible { outline: 2px solid var(--wc-ring); outline-offset: 4px; }
.nav__toggle {
  display: none;
  width: 40px; height: 40px; padding: 0;
  border: 1px solid var(--wc-border-strong);
  border-radius: var(--wc-radius-sm);
  background: transparent;
  cursor: pointer;
  align-items: center; justify-content: center; flex-direction: column; gap: 5px;
}
.nav__toggle span { display: block; width: 17px; height: 1.5px; background: var(--wc-foreground); transition: transform 200ms ease; }
.nav__toggle[aria-expanded="true"] span:first-child { transform: translateY(3.25px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.25px) rotate(-45deg); }

/* ---------- 首屏 ---------- */
.hero { position: relative; padding-top: 76px; padding-bottom: 64px; }
.hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 680px;
  background-image: var(--wc-hero-glow);
  pointer-events: none;
}
.hero > .wrap { position: relative; z-index: 1; }

.hero__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 520px;
  gap: 72px;
  align-items: start;
}
.hero__col { display: flex; flex-direction: column; }

.h1 {
  margin: 0;
  font-family: var(--wc-font-serif);
  font-size: clamp(52px, 5.4vw, 86px);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: 0.01em;
  text-wrap: balance;
  word-break: keep-all;
}
.lead {
  margin: 30px 0 0;
  font-family: var(--wc-font-serif);
  font-size: 20px;
  line-height: 1.85;
  color: var(--wc-ink-2);
  text-wrap: pretty;
}
.lead strong { color: var(--wc-foreground); font-weight: 700; }
.hero__actions { margin-top: 34px; }
.hero__meta {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-family: var(--wc-font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--wc-ink-3);
  text-transform: uppercase;
}
.hero__meta span + span::before { content: "·"; margin-right: 14px; }

.hero__spec {
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 36px;
  border-top: 1px solid var(--wc-foreground);
  max-width: 560px;
}
.spec-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--wc-border);
}
.issue-k { font-family: var(--wc-font-mono); font-size: 10px; letter-spacing: 0.14em; color: var(--wc-ink-3); text-transform: uppercase; white-space: nowrap; }
.issue-v { font-size: 13px; color: var(--wc-ink-2); text-align: right; }
.spec-item--wide { grid-column: 1 / -1; }
.hero__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--wc-border);
  font-size: 11px;
  line-height: 1.75;
  color: var(--wc-ink-3);
  max-width: 560px;
}
.hero__note p { margin: 0; }
.hero__note p + p { margin-top: 4px; }

/* ---------- 图版 / 舞台 ---------- */
.plate { margin: 0; display: flex; flex-direction: column; gap: 14px; }
.plate__cap {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  width: 510px;
  margin-left: auto;
  font-family: var(--wc-font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--wc-ink-3);
  text-transform: uppercase;
}
.stage { width: 510px; margin-left: auto; }
.stage__capsule { position: relative; margin-bottom: 26px; display: flex; align-items: flex-start; gap: 20px; }
.stage__annot { flex: 1; padding-top: 0; align-self: center; }
.stage__annot-t {
  font-family: var(--wc-font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--wc-primary);
  text-transform: uppercase;
}
.stage__annot-t::after { content: " ↓"; }
.stage__annot-d { margin-top: 6px; font-size: 11px; line-height: 1.7; color: var(--wc-ink-3); }
.stage__row { display: flex; align-items: flex-end; gap: 14px; }

/* 今日流量：外置于面板右侧，不遮挡面板内容 */
.float {
  width: 176px;
  padding: 12px 14px;
  background-color: var(--wc-panel);
  border: 1px solid var(--wc-panel-line);
  border-radius: var(--wc-radius-lg);
  box-shadow: var(--wc-shadow-float);
}
.float__k { font-family: var(--wc-font-mono); font-size: 9px; letter-spacing: 0.12em; color: var(--wc-ink-3); text-transform: uppercase; }
.float__v { font-family: var(--wc-font-serif); font-size: 24px; color: var(--wc-foreground); margin-top: 2px; }
.float__row { display: flex; justify-content: space-between; margin-top: 4px; font-family: var(--wc-font-mono); font-size: 9px; color: var(--wc-ink-3); }
.float__bars { display: flex; align-items: flex-end; gap: 3px; height: 20px; margin-top: 8px; }
.float__bars i { display: block; flex: 1 1 0; background-color: var(--wc-surface-3); }
.float__bars i.on { background-color: var(--wc-data-orange); }

/* ---------- 指标条 ---------- */
.kpi { margin-top: 64px; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--wc-border); }
.kpi__item { padding: 26px 28px 0 0; }
.kpi__item + .kpi__item { padding-left: 28px; border-left: 1px solid var(--wc-border); }
.kpi__num { font-family: var(--wc-font-mono); font-size: 28px; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.kpi__num small { font-family: var(--wc-font-sans); font-size: 13px; color: var(--wc-ink-3); margin-left: 4px; }
.kpi__label { margin-top: 8px; font-size: 12px; color: var(--wc-ink-3); letter-spacing: 0.04em; }

/* ---------- 编辑式栏目 ---------- */
.rail { display: grid; grid-template-columns: 120px 1fr; gap: 48px; align-items: start; }
.rail__mark { font-family: var(--wc-font-mono); font-size: 11px; letter-spacing: 0.16em; color: var(--wc-primary); padding-top: 12px; }
.rail__mark i { display: block; margin-top: 10px; width: 40px; height: 1px; background-color: var(--wc-primary); font-style: normal; }

.h2 { margin: 0; font-family: var(--wc-font-serif); font-size: var(--wc-text-h2); font-weight: 700; line-height: 1.25; letter-spacing: 0.01em; text-wrap: balance; word-break: keep-all; }
.sub { margin: 20px 0 0; font-size: 17px; line-height: 1.85; color: var(--wc-ink-2); max-width: 720px; text-wrap: pretty; }

/* ---------- 痛点 ---------- */
.quote {
  margin: 0;
  font-family: var(--wc-font-serif);
  font-size: clamp(34px, 4vw, 56px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.01em;
  max-width: 820px;
  text-wrap: balance;
  word-break: keep-all;
}
.quote em { font-style: normal; color: var(--wc-primary); }
.flow { margin-top: 52px; display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--wc-border); }
.flow__row { padding: 18px 16px 0 0; font-size: 13px; color: var(--wc-ink-3); }
.flow__idx { display: block; font-family: var(--wc-font-mono); font-size: 10px; letter-spacing: 0.14em; color: var(--wc-ink-3); margin-bottom: 8px; }
.flow__t { text-decoration: line-through; text-decoration-color: var(--wc-border-strong); }

.flow-now {
  margin-top: 40px;
  padding: 22px 28px;
  display: flex;
  align-items: baseline;
  gap: 20px;
  border-left: 2px solid var(--wc-primary);
  background: var(--wc-brand-soft);
}
.flow-now__idx { font-family: var(--wc-font-mono); font-size: 10px; letter-spacing: 0.16em; color: var(--wc-primary); }
.flow-now__t { font-family: var(--wc-font-serif); font-size: 30px; font-weight: 700; line-height: 1; color: var(--wc-foreground); }
.flow-now__d { font-size: 13px; color: var(--wc-ink-2); }

/* ---------- 形态 ---------- */
.forms { margin-top: 56px; display: grid; grid-template-columns: 1fr 1fr; gap: 0 56px; }
.form-item {
  padding: 32px 0;
  border-top: 1px solid var(--wc-border);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 264px;
  gap: 32px;
  align-items: center;
}
.form-item:nth-child(5), .form-item:nth-child(6) { border-bottom: 1px solid var(--wc-border); }
.card__title { margin: 0; font-family: var(--wc-font-serif); font-size: 23px; font-weight: 700; letter-spacing: 0.01em; display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.card__desc { margin: 10px 0 0; font-size: 14px; line-height: 1.8; color: var(--wc-ink-2); }
.spec { margin-top: 14px; font-family: var(--wc-font-mono); font-size: 10px; letter-spacing: 0.1em; color: var(--wc-ink-3); text-transform: uppercase; white-space: nowrap; }
.forms__note { margin: 20px 0 0; font-family: var(--wc-font-mono); font-size: 10px; letter-spacing: 0.1em; color: var(--wc-ink-3); }

/* 缩略图版 */
.mini {
  position: relative;
  width: 264px;
  height: 132px;
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--wc-surface-2);
  border: 1px solid var(--wc-border);
  border-radius: var(--wc-radius-md);
}
.mini > *:not(.mini__desk):not(.bpscreen):not(.bptask):not(.bpslide) { flex: none; position: relative; z-index: 1; }
.mini__desk {
  position: absolute; inset: 0; z-index: 0;
  background:
    linear-gradient(135deg, rgba(21,19,15,0.07) 0%, rgba(21,19,15,0) 55%),
    linear-gradient(180deg, #f4f2ed 0%, #dcd9d0 100%);
}
.capsule--mini { position: relative; transform: scale(0.82); }
.panel--mini { transform: scale(0.58); border-radius: var(--wc-radius-product); }
.pcard--row { display: flex; align-items: center; justify-content: space-between; }
.chart--mini { display: block; width: 100%; height: 22px; background: var(--wc-chart-blue-soft); border-radius: 1px; overflow: hidden; }
.chart-fill-mini { display: block; width: 100%; height: 100%; background: linear-gradient(160deg, rgba(74,143,216,0.55) 0%, rgba(74,143,216,0.55) 38%, transparent 38%); }

/* 大面板：从屏幕右侧滑出，约占屏幕三分之一 */
.mini--bigpanel { background: #e7e4dd; }
.bpscreen { position: absolute; inset: 0; display: block; }
.bpscreen__win {
  position: absolute;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(21, 19, 15, 0.09);
  border-radius: 2px;
}
.bpscreen__win--a { left: 13px; top: 15px; width: 72px; height: 44px; }
.bpscreen__win--b { left: 92px; top: 33px; width: 48px; height: 38px; }
.bptask { position: absolute; left: 0; right: 0; bottom: 0; height: 13px; background: rgba(21, 19, 15, 0.08); }

.bpslide {
  position: absolute;
  top: -6px; bottom: 0; right: 0;
  width: 33.4%;
  padding: 8px 7px;
  display: grid;
  align-content: start;
  gap: 4px;
  background: var(--wc-panel);
  border-left: 1px solid var(--wc-border-strong);
  box-shadow: -16px 0 28px -18px rgba(21, 19, 15, 0.55);
  z-index: 2;
}
/* 向左的滑动指示 */
.bpslide::before {
  content: "";
  position: absolute;
  left: -5px; top: 50%;
  width: 7px; height: 7px;
  border-left: 1px solid var(--wc-border-strong);
  border-bottom: 1px solid var(--wc-border-strong);
  transform: rotate(45deg) translateY(-50%);
  background: var(--wc-panel);
}
.bpslide__card { display: grid; gap: 2px; }
.bpslide__k { font-size: 7px; font-weight: 600; color: var(--wc-panel-ink); line-height: 1.2; }
.bpslide__bar { display: block; height: 3px; background: var(--wc-track); border-radius: 2px; overflow: hidden; }
.bpslide__bar i { display: block; height: 100%; background: var(--wc-data-green); }
.bpslide__spark {
  display: block; width: 100%; height: 8px;
  background: var(--wc-chart-blue-soft);
  border-radius: 1px;
}
.bpslide__spark--g { background: var(--wc-chart-green-soft); }
.bpslide__line { fill: none; stroke: var(--wc-chart-blue); stroke-width: 1.2; vector-effect: non-scaling-stroke; }
.bpslide__line--g { stroke: var(--wc-chart-green); }
.bpslide__foot {
  margin-top: 1px;
  padding-top: 3px;
  border-top: 1px solid var(--wc-panel-line);
  display: grid;
}
.bpslide__big { font-family: var(--wc-font-serif); font-size: 13px; font-weight: 700; color: var(--wc-foreground); line-height: 1.1; }
.bpslide__cap { font-family: var(--wc-font-mono); font-size: 6px; letter-spacing: 0.1em; color: var(--wc-panel-ink-3); text-transform: uppercase; }
.taskbar {
  width: 264px; height: 40px;
  display: flex; align-items: center; gap: 10px;
  padding: 0 10px;
  background: var(--wc-panel);
  border: 1px solid var(--wc-border-strong);
  border-radius: var(--wc-radius-sm);
  box-shadow: 0 6px 14px -8px rgba(21,19,15,0.35);
}
.taskbar__rest { flex: 1; height: 5px; background: rgba(21,19,15,0.08); border-radius: 3px; }
.rings-mini { display: flex; gap: 5px; }
.rings-mini i {
  display: block; width: 20px; height: 20px; border-radius: 50%;
  background: conic-gradient(var(--wc-data-green) 0 240deg, rgba(21,19,15,0.12) 240deg);
}
.rings-mini i:nth-child(2) { background: conic-gradient(var(--wc-data-orange) 0 180deg, rgba(21,19,15,0.12) 180deg); }
.rings-mini i:nth-child(3) { background: conic-gradient(var(--wc-data-purple) 0 300deg, rgba(21,19,15,0.12) 300deg); }
.rings-mini--v { flex-direction: column; }

.vbar {
  width: 56px; height: 178px;
  display: grid; place-items: center;
  background: var(--wc-panel-2);
  border: 1px solid var(--wc-border-strong);
  border-radius: var(--wc-radius-lg);
  box-shadow: 0 6px 14px -8px rgba(21,19,15,0.35);
  transform: scale(0.72);
}

.screen {
  width: 320px; height: 480px;
  padding: 16px;
  display: grid; align-content: start; gap: 10px;
  background: var(--wc-panel);
  border: 1px solid var(--wc-border-strong);
  border-radius: var(--wc-radius-sm);
  box-shadow: 0 6px 14px -8px rgba(21,19,15,0.35);
  transform: scale(0.27);
}
.screen__bar { display: block; height: 8px; background: var(--wc-panel-line); border-radius: 2px; }
.screen__bar--a { height: 56px; background: var(--wc-data-orange); opacity: 0.5; }
.screen__bar--b { height: 24px; background: var(--wc-data-green); opacity: 0.45; }

/* ---------- 轻量 ---------- */
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0 40px; margin-top: 40px; }
.metric { padding: 28px 0; border-top: 1px solid var(--wc-foreground); }
.metric__num { font-family: var(--wc-font-serif); font-size: clamp(34px, 3.2vw, 48px); line-height: 1; letter-spacing: -0.01em; font-variant-numeric: tabular-nums; }
.metric__num small { font-family: var(--wc-font-sans); font-size: 14px; color: var(--wc-ink-3); margin-left: 8px; }
.metric__label { margin-top: 12px; font-family: var(--wc-font-mono); font-size: 10px; letter-spacing: 0.12em; color: var(--wc-ink-3); text-transform: uppercase; }
.chain { margin-top: 32px; display: flex; flex-wrap: wrap; align-items: center; gap: 10px; font-family: var(--wc-font-mono); font-size: 11px; color: var(--wc-ink-2); }
.chain i { color: var(--wc-primary); font-style: normal; }

.notes { margin-top: 56px; display: grid; grid-template-columns: 1fr 1fr; gap: 0 56px; }
.note-item { padding: 26px 0; border-top: 1px solid var(--wc-border); display: grid; grid-template-columns: 52px 1fr; gap: 20px; }
.note-item:nth-child(3), .note-item:nth-child(4) { border-bottom: 1px solid var(--wc-border); }
.note-item__k { font-family: var(--wc-font-mono); font-size: 10px; letter-spacing: 0.14em; color: var(--wc-primary); }
.note-item__t { font-family: var(--wc-font-serif); font-size: 19px; font-weight: 700; line-height: 1.4; }
.note-item__d { margin: 8px 0 0; font-size: 13px; line-height: 1.8; color: var(--wc-ink-2); }
.note-item__d code { font-family: var(--wc-font-mono); font-size: 12px; background: var(--wc-surface-2); padding: 1px 5px; border-radius: 2px; }

/* ---------- 隐私 ---------- */
.band { background-color: var(--wc-surface); border-top: 1px solid var(--wc-border); border-bottom: 1px solid var(--wc-border); }
.diagram { margin-top: 40px; max-width: 660px; display: flex; align-items: stretch; gap: 0; }
.node {
  flex: none;
  width: 150px;
  padding: 12px 14px;
  border: 1px solid var(--wc-border-strong);
  border-radius: var(--wc-radius-sm);
  background: var(--wc-background);
}
.node__t { display: block; font-family: var(--wc-font-serif); font-size: 15px; font-weight: 700; }
.node__d { display: block; margin-top: 3px; font-family: var(--wc-font-mono); font-size: 9px; letter-spacing: 0.1em; color: var(--wc-ink-3); }
.link { flex: 1; height: auto; position: relative; background: transparent; }
.link::before { content: ""; position: absolute; left: 0; right: 0; top: 50%; height: 1px; background: var(--wc-primary); }
.link--dash::before { background: repeating-linear-gradient(90deg, var(--wc-primary) 0 4px, transparent 4px 8px); }
.link__t { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); padding: 0 8px; background: var(--wc-surface); font-family: var(--wc-font-mono); font-size: 9px; letter-spacing: 0.1em; color: var(--wc-primary); white-space: nowrap; }
.diagram-cap { margin-top: 16px; font-family: var(--wc-font-mono); font-size: 10px; letter-spacing: 0.1em; color: var(--wc-ink-3); }
.p-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; margin-top: 52px; }
.p-item { border-top: 1px solid var(--wc-foreground); padding-top: 18px; }
.p-item__k { font-family: var(--wc-font-mono); font-size: 10px; letter-spacing: 0.14em; color: var(--wc-primary); }
.p-item__t { margin-top: 12px; font-family: var(--wc-font-serif); font-size: 20px; font-weight: 700; }
.p-item__d { margin-top: 10px; font-size: 13px; line-height: 1.8; color: var(--wc-ink-2); }

/* ---------- 上手 ---------- */
.start { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; margin-top: 8px; }
.steps { display: flex; flex-direction: column; }
.step { display: grid; grid-template-columns: 56px 1fr; gap: 22px; padding: 24px 0; border-top: 1px solid var(--wc-border); }
.step:last-child { border-bottom: 1px solid var(--wc-border); }
.step__num { font-family: var(--wc-font-serif); font-size: 26px; color: var(--wc-primary); line-height: 1; }
.step__title { font-family: var(--wc-font-serif); font-size: 20px; font-weight: 700; }
.step__desc { margin-top: 8px; font-size: 14px; line-height: 1.8; color: var(--wc-ink-2); }
.step__desc code { font-family: var(--wc-font-mono); font-size: 13px; background: var(--wc-surface-2); padding: 1px 5px; border-radius: 2px; white-space: nowrap; }
.codebox { padding: 24px 26px; background-color: var(--wc-panel); border: 1px solid var(--wc-panel-line); border-radius: var(--wc-radius-md); font-family: var(--wc-font-mono); font-size: 12px; line-height: 2.2; color: var(--wc-panel-ink-3); }
.codebox .row { display: flex; gap: 16px; }
.codebox .k { flex: none; width: 92px; }
.codebox .v { color: var(--wc-panel-ink); }
.codebox .v em { font-style: normal; color: var(--wc-data-green); }
.note { margin-top: 16px; padding: 16px 18px; display: flex; gap: 10px; font-size: 12px; line-height: 1.7; color: var(--wc-ink-2); border: 1px solid var(--wc-border); border-radius: var(--wc-radius-sm); }
.note svg { flex: none; margin-top: 2px; color: var(--wc-primary); }
.req { margin-top: 16px; border-top: 1px solid var(--wc-border); }
.req__row { display: flex; justify-content: space-between; gap: 16px; padding: 11px 0; border-bottom: 1px solid var(--wc-border); font-size: 13px; }
.req__row span:first-child { font-family: var(--wc-font-mono); font-size: 10px; letter-spacing: 0.12em; color: var(--wc-ink-3); text-transform: uppercase; }
.req__row span:last-child { color: var(--wc-ink-2); text-align: right; }

/* ---------- 页脚 ---------- */
.footer { border-top: 1px solid var(--wc-foreground); padding: 56px 0 40px; }
.footer__mast { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; padding-bottom: 28px; border-bottom: 1px solid var(--wc-border); }
.footer__mast .brand__name { font-size: 30px; }
.footer__mast .brand__icon { width: 38px; height: 38px; }
.footer__issue { font-family: var(--wc-font-mono); font-size: 10px; letter-spacing: 0.18em; color: var(--wc-ink-3); text-transform: uppercase; }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-top: 36px; }
.footer__tag { margin-top: 12px; font-size: 13px; line-height: 1.8; color: var(--wc-ink-3); max-width: 280px; }

/* 页尾下载入口：桌面隐藏（首屏已有主按钮），移动端补上 */
.footer h3 { margin: 0 0 14px; font-family: var(--wc-font-mono); font-size: 10px; font-weight: 500; letter-spacing: 0.14em; color: var(--wc-ink-3); text-transform: uppercase; }
.footer__links { display: flex; flex-direction: column; gap: 10px; }
.footer__links span { font-size: 13px; color: var(--wc-ink-3); }
.footer__links a { font-size: 13px; color: var(--wc-ink-2); text-decoration: none; transition: color 160ms cubic-bezier(0.2, 0.8, 0.2, 1); }
.footer__links a:hover { color: var(--wc-primary); }
.footer__bottom { margin-top: 48px; padding-top: 18px; border-top: 1px solid var(--wc-border); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-family: var(--wc-font-mono); font-size: 10px; letter-spacing: 0.08em; color: var(--wc-ink-3); }

/* ---------- 入场 ---------- */
.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity 760ms cubic-bezier(0.22, 0.8, 0.24, 1), transform 760ms cubic-bezier(0.22, 0.8, 0.24, 1); }
.js .reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 90ms; }
.reveal[data-delay="2"] { transition-delay: 180ms; }
.reveal[data-delay="3"] { transition-delay: 270ms; }

/* ---------- 响应式 ---------- */
@media (max-width: 1280px) {
  .wrap { padding-left: 40px; padding-right: 40px; }
  .hero__body { grid-template-columns: minmax(0, 1fr) 470px; gap: 56px; }
  .plate__cap, .stage { width: 460px; }
  .stage__row { gap: 12px; }
  .rail { grid-template-columns: 96px 1fr; gap: 36px; }
  .start { gap: 56px; }
  .p-list { gap: 32px; }
  .notes { gap: 0 40px; }
  .forms { gap: 0 44px; }
}

@media (max-width: 1080px) {
  .hero__body { grid-template-columns: minmax(0, 1fr); gap: 44px; }
  .plate__cap { width: 510px; margin-left: 0; }
  .stage { width: 510px; margin-inline: auto; }
  .hero__spec { max-width: none; }
  .rail { grid-template-columns: 1fr; gap: 20px; }
  .rail__mark { padding-top: 0; }
  .rail__mark i { display: none; }
  .forms { grid-template-columns: 1fr; }
  .form-item:nth-child(5) { border-bottom: none; }
  .form-item:nth-child(6) { border-bottom: 1px solid var(--wc-border); }
  .metrics { grid-template-columns: 1fr 1fr; }
  .notes { grid-template-columns: 1fr; }
  .note-item:nth-child(3) { border-bottom: none; }
  .p-list { grid-template-columns: 1fr; gap: 32px; }
  .start { grid-template-columns: 1fr; gap: 40px; }
  .diagram { max-width: none; }

  /* 页尾：显式分区（slogan 通栏 → 产品|资源 → 支持环境通栏） */
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "lead lead"
      "prod res"
      "env  env";
    gap: 0 32px;
  }
  .footer__lead { grid-area: lead; padding-bottom: 22px; }
  .footer__col--prod { grid-area: prod; }
  .footer__col--res { grid-area: res; }
  .footer__col--env { grid-area: env; }
  .footer__col { padding: 18px 0; border-top: 1px solid var(--wc-border); }
  .footer__col--res { border-left: 1px solid var(--wc-border); padding-left: 32px; }
  .footer__tag { margin-top: 0; }
}

@media (max-width: 720px) {
  .wrap { padding-left: 20px; padding-right: 20px; }
  .section { padding-top: 76px; padding-bottom: 76px; }
  .hero { padding-top: 56px; }

  .masthead__inner { height: 32px; font-size: 9px; letter-spacing: 0.1em; white-space: nowrap; }
  .masthead__meta { gap: 16px; font-size: 8px; letter-spacing: 0.12em; }
  .masthead__meta span:nth-child(3) { display: none; }
  .masthead__meta span + span { padding-left: 16px; }

  .nav { height: 60px; }
  .nav__toggle { display: flex; }
  .nav__links {
    position: absolute;
    top: 60px; left: 0; right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px 20px 18px;
    background: var(--wc-background);
    border-bottom: 1px solid var(--wc-border);
  }
  .nav__links.is-open { display: flex; }
  .nav__link { padding: 13px 0; border-bottom: 1px solid var(--wc-border); font-size: 15px; }
  .nav__links .btn { margin-top: 14px; width: 100%; }

  .h1 { font-size: clamp(40px, 11vw, 56px); }
  .lead { font-size: 16px; line-height: 1.75; }
  .hero__spec { grid-template-columns: 1fr; }
  .hero__meta { font-size: 9px; gap: 10px; }
  .hero__meta span + span::before { margin-right: 10px; }
  .kpi { grid-template-columns: 1fr 1fr; }
  .kpi__item:nth-child(3) { border-left: none; padding-left: 0; }
  .flow { grid-template-columns: 1fr 1fr; }
  .flow-now { flex-direction: column; gap: 8px; padding: 20px; }
  .flow-now__t { font-size: 26px; }
  .forms { gap: 0; }
  .form-item { grid-template-columns: 1fr; gap: 20px; }
  .mini { width: 100%; }
  .metrics { grid-template-columns: 1fr 1fr; gap: 0 20px; }
  .metric__num { font-size: 30px; }
  .plate__cap, .stage { width: 100%; }
  .stage__row { flex-direction: column; align-items: stretch; gap: 12px; }
  .float { width: 100%; }
  .panel { width: 100%; }
  .capsule { width: 100%; max-width: 300px; }
  .diagram { flex-direction: column; }
  .node { width: 100%; }
  .link { flex: none; height: 40px; }
  .link::before { left: 50%; right: auto; top: 0; bottom: 0; width: 1px; height: auto; }
  .link--dash::before { background: repeating-linear-gradient(180deg, var(--wc-primary) 0 4px, transparent 4px 8px); }
  /* 页尾：品牌一行 + 两列目录 + 横向 CTA（分区结构继承 1080 断点） */
  .footer { padding: 40px 0 32px; }
  .footer__mast { flex-direction: row; align-items: baseline; gap: 12px; padding-bottom: 18px; }
  .footer__mast .brand { flex: 1; min-width: 0; }
  .footer__mast .brand__name { font-size: 24px; }
  .footer__issue { display: none; }
  .footer__grid { gap: 0 20px; padding-top: 0; }
  .footer__lead { padding-bottom: 18px; }
  .footer__tag { font-size: 12px; line-height: 1.75; }
  .footer__col { padding: 16px 0; }
  .footer__col--res { padding-left: 20px; }
  .footer h3 { margin-bottom: 10px; }
  .footer__links { gap: 8px; }
  .footer__bottom { margin-top: 26px; gap: 6px; font-size: 9px; line-height: 1.7; }
}

@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition-duration: 0.01ms; }
  html { scroll-behavior: auto; }
  * { transition-duration: 0.01ms !important; }
}