/* ============================================
   早餐安安果 · 详情页样式
   Style: Editorial / Cool / C-end
   ============================================ */

:root {
  --bk-bg: #FAFAF8;
  --bk-bg-cream: #F5F1E8;
  --bk-bg-ink: #14140F;
  --bk-text: #1A1A1A;
  --bk-text-mute: #7A7A72;
  --bk-accent: #5A7048;
  --bk-accent-gold: #C8A96E;
  --bk-accent-hot: #E8613A;
  --bk-border: #E5E3DC;
  --bk-serif: 'Noto Serif SC', 'Songti SC', Georgia, serif;
  --bk-sans: 'Noto Sans SC', -apple-system, 'PingFang SC', 'Helvetica Neue', sans-serif;
  --bk-ease: 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--bk-sans);
  background: var(--bk-bg);
  color: var(--bk-text);
  line-height: 1.8;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--bk-accent); color: #fff; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ---- TOP BAR ---- */
.bk-topbar {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.25rem 2rem;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(250, 250, 248, 0.75);
  border-bottom: 1px solid rgba(229, 227, 220, 0.5);
}

.bk-back {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.78rem; letter-spacing: 0.2em;
  color: var(--bk-text-mute);
  transition: color var(--bk-ease);
}
.bk-back:hover { color: var(--bk-text); }
.bk-back svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.5; }

.bk-logo {
  font-family: var(--bk-serif);
  font-size: 0.95rem; letter-spacing: 0.3em;
  color: var(--bk-text);
  font-weight: 400;
}
.bk-logo small {
  display: block;
  font-family: var(--bk-sans);
  font-size: 0.55rem; letter-spacing: 0.3em;
  color: var(--bk-text-mute);
  margin-top: 2px;
  text-transform: uppercase;
}

/* ---- UTILITY ---- */
.bk-wrap {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}
.bk-wrap--narrow { max-width: 960px; }

.bk-chapter {
  display: inline-flex; align-items: center; gap: 0.8rem;
  font-size: 0.68rem; letter-spacing: 0.35em;
  color: var(--bk-accent-gold);
  text-transform: uppercase;
  font-family: var(--bk-sans);
  font-weight: 400;
}
.bk-chapter::before {
  content: ''; width: 28px; height: 1px; background: currentColor;
}

.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.9s, transform 0.9s; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ============================================
   01 · HERO
   ============================================ */
.bk-hero {
  position: relative;
  min-height: 100vh;
  padding: 8rem 2rem 4rem;
  overflow: hidden;
  background: linear-gradient(180deg, #FAFAF8 0%, #F5F1E8 100%);
}

.bk-hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 15% 20%, rgba(200, 169, 110, 0.08), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(90, 112, 72, 0.06), transparent 40%);
  pointer-events: none;
}

.bk-hero-grid {
  position: relative;
  max-width: 1400px; margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3rem;
  align-items: center;
  min-height: calc(100vh - 12rem);
}

.bk-hero-left { position: relative; z-index: 2; }
.bk-hero-meta {
  display: flex; align-items: center; gap: 1rem;
  margin-bottom: 2.5rem;
  font-size: 0.7rem; letter-spacing: 0.3em;
  color: var(--bk-text-mute);
}
.bk-hero-meta span { display: inline-block; }
.bk-hero-meta i {
  font-style: normal; display: inline-block;
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--bk-accent-gold);
}

.bk-hero-title {
  font-family: var(--bk-serif);
  font-weight: 400;
  font-size: clamp(3.2rem, 9vw, 8rem);
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: var(--bk-text);
  margin-bottom: 1.5rem;
}
.bk-hero-title .bk-title-row { display: block; overflow: hidden; }
.bk-hero-title em {
  font-style: normal;
  color: var(--bk-accent);
  font-weight: 500;
  display: inline-block;
  position: relative;
}
.bk-hero-title em::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 3px;
  background: var(--bk-accent-gold);
  opacity: 0.6;
}

.bk-hero-sub {
  font-size: 1rem; letter-spacing: 0.08em;
  color: var(--bk-text-mute);
  max-width: 460px;
  line-height: 2;
  margin-bottom: 3rem;
}

.bk-hero-cta {
  display: inline-flex; align-items: center; gap: 0.8rem;
  padding: 1rem 2.2rem;
  background: var(--bk-text);
  color: #fff;
  border-radius: 999px;
  font-size: 0.8rem; letter-spacing: 0.25em;
  transition: transform var(--bk-ease), background var(--bk-ease);
}
.bk-hero-cta:hover { background: var(--bk-accent); transform: translateY(-2px); }
.bk-hero-cta em { font-style: normal; transition: transform var(--bk-ease); }
.bk-hero-cta:hover em { transform: translateX(4px); }

.bk-hero-scroll {
  margin-top: 3.5rem;
  display: inline-flex; align-items: center; gap: 0.8rem;
  font-size: 0.68rem; letter-spacing: 0.35em;
  color: var(--bk-text-mute);
  text-transform: uppercase;
}
.bk-hero-scroll-line {
  display: inline-block;
  width: 60px; height: 1px;
  background: var(--bk-text-mute);
  position: relative; overflow: hidden;
}
.bk-hero-scroll-line::after {
  content: ''; position: absolute; inset: 0;
  background: var(--bk-text);
  transform: translateX(-100%);
  animation: bkScrollLine 2.5s ease-in-out infinite;
}
@keyframes bkScrollLine {
  0% { transform: translateX(-100%); }
  50% { transform: translateX(0); }
  100% { transform: translateX(100%); }
}

/* Hero right: clock + apple */
.bk-hero-right {
  position: relative;
  aspect-ratio: 1/1;
  max-width: 560px;
  justify-self: end;
  width: 100%;
}

.bk-clock {
  position: absolute; inset: 0;
  border: 1px solid rgba(26, 26, 26, 0.08);
  border-radius: 50%;
  animation: bkClockSpin 60s linear infinite;
}
.bk-clock::before {
  content: ''; position: absolute;
  inset: 12%; border: 1px solid rgba(200, 169, 110, 0.15);
  border-radius: 50%;
}
.bk-clock-tick {
  position: absolute; left: 50%; top: 0;
  width: 1px; height: 10px;
  background: var(--bk-text);
  transform-origin: center 50vmin;
}
.bk-clock-num {
  position: absolute;
  font-family: var(--bk-serif);
  font-size: 0.9rem;
  color: var(--bk-text-mute);
  letter-spacing: 0.1em;
}
.bk-clock-num--12 { top: 16px; left: 50%; transform: translateX(-50%); }
.bk-clock-num--3  { right: 16px; top: 50%; transform: translateY(-50%); }
.bk-clock-num--6  { bottom: 16px; left: 50%; transform: translateX(-50%); }
.bk-clock-num--9  { left: 16px; top: 50%; transform: translateY(-50%); }
.bk-clock-num--10 {
  top: 16%; left: 12%;
  font-size: 4.5rem;
  color: var(--bk-accent);
  font-weight: 500;
  letter-spacing: 0;
}
.bk-clock-num--10 small {
  display: block;
  font-size: 0.62rem; letter-spacing: 0.4em;
  color: var(--bk-accent-gold);
  margin-top: 0.3rem;
  font-family: var(--bk-sans);
}

@keyframes bkClockSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.bk-apple {
  position: absolute;
  inset: 20%;
  background: url('images/apple.png') center/contain no-repeat;
  animation: bkAppleFloat 6s ease-in-out infinite;
  filter: drop-shadow(0 30px 60px rgba(90, 60, 20, 0.15));
}
@keyframes bkAppleFloat {
  0%, 100% { transform: translateY(0) rotate(-3deg); }
  50% { transform: translateY(-14px) rotate(2deg); }
}

.bk-hero-tag {
  position: absolute;
  background: #fff;
  border: 1px solid var(--bk-border);
  padding: 0.6rem 1rem;
  border-radius: 999px;
  font-size: 0.65rem; letter-spacing: 0.2em;
  color: var(--bk-text);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}
.bk-hero-tag--1 { top: 8%; right: 8%; }
.bk-hero-tag--2 { bottom: 18%; left: 0; }
.bk-hero-tag--3 { top: 52%; right: 2%; }
.bk-hero-tag em { color: var(--bk-accent); font-style: normal; font-weight: 500; }

/* ============================================
   02 · MANIFESTO
   ============================================ */
.bk-manifesto {
  padding: 10rem 2rem 8rem;
  background: var(--bk-bg);
  position: relative;
}

.bk-manifesto-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 4rem;
  align-items: start;
}

.bk-manifesto-quote {
  font-family: var(--bk-serif);
  font-size: clamp(2rem, 4.5vw, 3.8rem);
  line-height: 1.3;
  font-weight: 300;
  color: var(--bk-text);
  letter-spacing: 0.05em;
  position: relative;
}
.bk-manifesto-quote::before {
  content: '"';
  position: absolute;
  top: -3rem; left: -1.5rem;
  font-size: 10rem;
  color: var(--bk-accent-gold);
  opacity: 0.25;
  line-height: 1;
  font-family: Georgia, serif;
}

.bk-manifesto-body {
  font-size: 0.95rem;
  line-height: 2.2;
  color: var(--bk-text-mute);
  display: flex; flex-direction: column; gap: 1.6rem;
}
.bk-manifesto-body p:first-child::first-letter {
  font-family: var(--bk-serif);
  font-size: 3.5rem;
  float: left;
  line-height: 0.9;
  padding-right: 0.6rem;
  padding-top: 0.4rem;
  color: var(--bk-accent);
  font-weight: 500;
}

/* ============================================
   03 · WHY APPLE
   ============================================ */
.bk-why {
  padding: 8rem 2rem;
  background: var(--bk-bg-cream);
  position: relative;
}
.bk-why-head {
  text-align: center;
  margin-bottom: 6rem;
}
.bk-why-title {
  font-family: var(--bk-serif);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  margin-top: 1.5rem;
  color: var(--bk-text);
}
.bk-why-sub {
  margin-top: 1rem;
  color: var(--bk-text-mute);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
}

.bk-why-grid {
  max-width: 1280px; margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.bk-why-card {
  background: #fff;
  padding: 2.5rem 2rem;
  border-radius: 18px;
  border: 1px solid var(--bk-border);
  transition: transform var(--bk-ease), box-shadow var(--bk-ease), border-color var(--bk-ease);
  position: relative;
  overflow: hidden;
}
.bk-why-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.06);
  border-color: var(--bk-accent-gold);
}
.bk-why-num {
  font-family: var(--bk-serif);
  font-size: 3rem;
  font-weight: 300;
  color: var(--bk-accent-gold);
  opacity: 0.4;
  margin-bottom: 1rem;
  letter-spacing: 0;
}
.bk-why-h {
  font-family: var(--bk-serif);
  font-size: 1.3rem;
  font-weight: 500;
  margin-bottom: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--bk-text);
}
.bk-why-d {
  font-size: 0.85rem;
  color: var(--bk-text-mute);
  line-height: 1.9;
}

/* ============================================
   04 · 12 MONTHS
   ============================================ */
.bk-months {
  padding: 10rem 2rem;
  background: var(--bk-bg-ink);
  color: #F5F1E8;
  position: relative;
  overflow: hidden;
}
.bk-months::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(200, 169, 110, 0.08), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(90, 112, 72, 0.1), transparent 50%);
  pointer-events: none;
}

.bk-months-head {
  max-width: 1280px; margin: 0 auto 4.5rem;
  display: flex; justify-content: space-between; align-items: flex-end;
  flex-wrap: wrap; gap: 2rem;
  position: relative; z-index: 1;
}
.bk-months-head-left { max-width: 640px; }
.bk-months-title {
  font-family: var(--bk-serif);
  font-size: clamp(2rem, 4.5vw, 4rem);
  font-weight: 400;
  margin-top: 1.5rem;
  line-height: 1.2;
  letter-spacing: 0.04em;
}
.bk-months-title em {
  font-style: normal;
  color: var(--bk-accent-gold);
  font-weight: 500;
}
.bk-months-sub {
  margin-top: 1.2rem;
  font-size: 0.9rem;
  color: rgba(245, 241, 232, 0.55);
  letter-spacing: 0.06em;
}
.bk-months-current {
  text-align: right;
  color: rgba(245, 241, 232, 0.45);
  font-size: 0.72rem;
  letter-spacing: 0.3em;
}
.bk-months-current-label {
  display: block; margin-bottom: 0.4rem;
}
.bk-months-current-val {
  font-family: var(--bk-serif);
  font-size: 1.8rem;
  color: var(--bk-accent-gold);
  letter-spacing: 0.08em;
}

.bk-months-stage {
  max-width: 1280px; margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
  position: relative; z-index: 1;
}

.bk-months-visual {
  aspect-ratio: 4/5;
  background: linear-gradient(160deg, rgba(200, 169, 110, 0.08), rgba(90, 112, 72, 0.05));
  border: 1px solid rgba(200, 169, 110, 0.15);
  border-radius: 24px;
  position: relative;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.bk-months-visual::before {
  content: '';
  position: absolute; inset: 10%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 169, 110, 0.15) 0%, transparent 60%);
}
.bk-months-apple {
  width: 70%;
  filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.4));
  animation: bkAppleFloat 6s ease-in-out infinite;
  transition: opacity 0.4s;
}
.bk-months-visual-label {
  position: absolute;
  top: 2rem; left: 2rem;
  font-family: var(--bk-serif);
  font-size: 4rem;
  font-weight: 300;
  color: rgba(200, 169, 110, 0.3);
  letter-spacing: 0.02em;
  line-height: 1;
}
.bk-months-visual-label small {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.4em;
  color: rgba(245, 241, 232, 0.3);
  margin-top: 0.5rem;
  font-family: var(--bk-sans);
}

.bk-months-info { padding-right: 1rem; }
.bk-months-name {
  font-family: var(--bk-serif);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 400;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  color: #F5F1E8;
  transition: opacity 0.4s;
}
.bk-months-desc {
  font-size: 0.95rem;
  line-height: 2.1;
  color: rgba(245, 241, 232, 0.65);
  margin-bottom: 2rem;
  transition: opacity 0.4s;
}
.bk-months-origin {
  display: inline-flex; align-items: center; gap: 0.8rem;
  padding: 0.6rem 1.2rem;
  border: 1px solid rgba(200, 169, 110, 0.3);
  border-radius: 999px;
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  color: var(--bk-accent-gold);
}

.bk-months-grid {
  max-width: 1280px; margin: 5rem auto 0;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 0.5rem;
  position: relative; z-index: 1;
}
.bk-month-cell {
  aspect-ratio: 1/1.3;
  border: 1px solid rgba(245, 241, 232, 0.1);
  padding: 0.8rem 0.5rem;
  cursor: pointer;
  display: flex; flex-direction: column; justify-content: space-between;
  font-family: var(--bk-serif);
  text-align: center;
  border-radius: 6px;
  transition: border-color var(--bk-ease), background var(--bk-ease), transform var(--bk-ease);
  background: rgba(255, 255, 255, 0.02);
}
.bk-month-cell:hover {
  border-color: rgba(200, 169, 110, 0.4);
  transform: translateY(-3px);
}
.bk-month-cell.is-active {
  border-color: var(--bk-accent-gold);
  background: rgba(200, 169, 110, 0.08);
}
.bk-month-cell-num {
  font-size: 0.75rem;
  color: rgba(245, 241, 232, 0.4);
  letter-spacing: 0.15em;
}
.bk-month-cell.is-active .bk-month-cell-num { color: var(--bk-accent-gold); }
.bk-month-cell-label {
  font-size: 1.1rem;
  color: rgba(245, 241, 232, 0.8);
  font-weight: 400;
}
.bk-month-cell.is-active .bk-month-cell-label { color: #F5F1E8; }
.bk-month-cell-eng {
  font-family: var(--bk-sans);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  color: rgba(245, 241, 232, 0.3);
  text-transform: uppercase;
}

/* ============================================
   05 · WHATS INSIDE
   ============================================ */
.bk-inside {
  padding: 8rem 2rem;
  background: var(--bk-bg);
}
.bk-inside-inner {
  max-width: 1280px; margin: 0 auto;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 4rem;
  align-items: center;
}
.bk-inside-title {
  font-family: var(--bk-serif);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.06em;
  margin: 1.5rem 0 1.5rem;
}
.bk-inside-p {
  font-size: 0.95rem;
  color: var(--bk-text-mute);
  line-height: 2.1;
  max-width: 440px;
}

.bk-inside-items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.bk-inside-item {
  background: #fff;
  border: 1px solid var(--bk-border);
  border-radius: 14px;
  padding: 2rem 1.5rem;
  transition: transform var(--bk-ease), border-color var(--bk-ease);
}
.bk-inside-item:hover {
  transform: translateY(-4px);
  border-color: var(--bk-accent-gold);
}
.bk-inside-icon {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--bk-bg-cream);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.2rem;
  color: var(--bk-accent);
  font-family: var(--bk-serif);
  font-size: 1.6rem;
}
.bk-inside-h {
  font-family: var(--bk-serif);
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  margin-bottom: 0.4rem;
  color: var(--bk-text);
}
.bk-inside-d {
  font-size: 0.78rem;
  color: var(--bk-text-mute);
  line-height: 1.8;
}

/* ============================================
   06 · PRICING
   ============================================ */
.bk-pricing {
  padding: 10rem 2rem;
  background: var(--bk-bg-cream);
}
.bk-pricing-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 5rem;
}
.bk-pricing-title {
  font-family: var(--bk-serif);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
  letter-spacing: 0.06em;
  margin-top: 1.5rem;
}
.bk-pricing-sub {
  margin-top: 1rem;
  color: var(--bk-text-mute);
  font-size: 0.9rem;
}

.bk-plans {
  max-width: 1280px; margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
}

.bk-plan {
  background: #fff;
  border: 1px solid var(--bk-border);
  border-radius: 20px;
  padding: 2.5rem 1.8rem;
  position: relative;
  transition: transform var(--bk-ease), box-shadow var(--bk-ease), border-color var(--bk-ease);
  display: flex; flex-direction: column;
}
.bk-plan:hover {
  transform: translateY(-10px);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.08);
}
.bk-plan--featured {
  background: var(--bk-bg-ink);
  color: #F5F1E8;
  border-color: var(--bk-bg-ink);
}
.bk-plan--featured:hover {
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.25);
}
.bk-plan-badge {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: var(--bk-accent-gold);
  color: #fff;
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  text-transform: uppercase;
}
.bk-plan-name {
  font-family: var(--bk-serif);
  font-size: 1.3rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.3rem;
}
.bk-plan-tag {
  font-size: 0.68rem;
  letter-spacing: 0.25em;
  color: var(--bk-accent-gold);
  text-transform: uppercase;
  margin-bottom: 2rem;
}
.bk-plan-price {
  font-family: var(--bk-serif);
  font-size: 2.8rem;
  font-weight: 500;
  color: inherit;
  line-height: 1;
  margin-bottom: 0.4rem;
}
.bk-plan-price small {
  font-family: var(--bk-sans);
  font-size: 0.85rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--bk-text-mute);
  margin-left: 0.3rem;
}
.bk-plan--featured .bk-plan-price small { color: rgba(245, 241, 232, 0.5); }
.bk-plan-avg {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--bk-text-mute);
  margin-bottom: 1.8rem;
  padding-bottom: 1.8rem;
  border-bottom: 1px dashed var(--bk-border);
}
.bk-plan--featured .bk-plan-avg {
  color: rgba(245, 241, 232, 0.5);
  border-color: rgba(245, 241, 232, 0.15);
}
.bk-plan-feats {
  list-style: none;
  font-size: 0.78rem;
  color: var(--bk-text-mute);
  line-height: 1.9;
  margin-bottom: 2rem;
  flex: 1;
}
.bk-plan--featured .bk-plan-feats { color: rgba(245, 241, 232, 0.7); }
.bk-plan-feats li {
  padding-left: 1.2rem;
  position: relative;
  margin-bottom: 0.6rem;
}
.bk-plan-feats li::before {
  content: '';
  position: absolute; left: 0; top: 0.65rem;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--bk-accent-gold);
}
.bk-plan-cta {
  display: block;
  text-align: center;
  padding: 0.9rem 1rem;
  background: var(--bk-text);
  color: #fff;
  border-radius: 999px;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  transition: background var(--bk-ease);
}
.bk-plan-cta:hover { background: var(--bk-accent); }
.bk-plan--featured .bk-plan-cta {
  background: var(--bk-accent-gold);
  color: var(--bk-bg-ink);
}
.bk-plan--featured .bk-plan-cta:hover { background: #fff; }

/* ============================================
   07 · SERVICE & SHIPPING
   ============================================ */
.bk-service {
  padding: 8rem 2rem;
  background: var(--bk-bg);
}
.bk-service-grid {
  max-width: 1200px; margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.bk-service-block h3 {
  font-family: var(--bk-serif);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  margin: 1rem 0 1.8rem;
}
.bk-service-list {
  list-style: none;
  display: flex; flex-direction: column;
  gap: 1.2rem;
}
.bk-service-list li {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 1rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--bk-border);
  font-size: 0.85rem;
  line-height: 1.8;
}
.bk-service-list li strong {
  font-weight: 500;
  color: var(--bk-text);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  padding-top: 2px;
}
.bk-service-list li span {
  color: var(--bk-text-mute);
}

/* ============================================
   08 · ENTERPRISE
   ============================================ */
.bk-enterprise {
  padding: 6rem 2rem;
  background: var(--bk-bg-cream);
}
.bk-ent-card {
  max-width: 1100px; margin: 0 auto;
  background: var(--bk-bg-ink);
  color: #F5F1E8;
  border-radius: 24px;
  padding: 4rem;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.bk-ent-card::before {
  content: '';
  position: absolute;
  right: -100px; top: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(200,169,110,0.15), transparent 60%);
  pointer-events: none;
}
.bk-ent-title {
  font-family: var(--bk-serif);
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  margin: 1rem 0 1.5rem;
  position: relative;
}
.bk-ent-desc {
  font-size: 0.9rem;
  color: rgba(245, 241, 232, 0.65);
  line-height: 2;
  margin-bottom: 2rem;
  position: relative;
}
.bk-ent-list {
  list-style: none;
  font-size: 0.82rem;
  color: rgba(245, 241, 232, 0.8);
  position: relative;
}
.bk-ent-list li {
  padding: 0.5rem 0 0.5rem 1.4rem;
  position: relative;
}
.bk-ent-list li::before {
  content: '—';
  position: absolute; left: 0;
  color: var(--bk-accent-gold);
}
.bk-ent-cta {
  display: inline-flex; align-items: center; gap: 0.5rem;
  margin-top: 2rem;
  padding: 0.9rem 1.8rem;
  border: 1px solid var(--bk-accent-gold);
  color: var(--bk-accent-gold);
  border-radius: 999px;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  transition: background var(--bk-ease), color var(--bk-ease);
  position: relative;
}
.bk-ent-cta:hover {
  background: var(--bk-accent-gold);
  color: var(--bk-bg-ink);
}

/* ============================================
   09 · STANDARDS
   ============================================ */
.bk-standards {
  padding: 8rem 2rem;
  background: var(--bk-bg);
}
.bk-standards-head {
  text-align: center; margin-bottom: 4rem;
}
.bk-standards-title {
  font-family: var(--bk-serif);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  margin-top: 1.5rem;
}
.bk-standards-grid {
  max-width: 1100px; margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--bk-border);
  border-radius: 20px;
  overflow: hidden;
}
.bk-std-item {
  padding: 3rem 2rem;
  text-align: center;
  border-right: 1px solid var(--bk-border);
}
.bk-std-item:last-child { border-right: none; }
.bk-std-num {
  font-family: var(--bk-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--bk-accent);
  font-weight: 500;
  line-height: 1;
  margin-bottom: 0.5rem;
}
.bk-std-num sup {
  font-size: 1.2rem;
  color: var(--bk-accent-gold);
  vertical-align: super;
}
.bk-std-label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--bk-text-mute);
  text-transform: uppercase;
}

/* ============================================
   10 · VOICES
   ============================================ */
.bk-voices {
  padding: 10rem 2rem;
  background: var(--bk-bg-cream);
}
.bk-voices-inner {
  max-width: 900px; margin: 0 auto;
  text-align: center;
}
.bk-voices-quote {
  font-family: var(--bk-serif);
  font-size: clamp(1.4rem, 2.8vw, 2.2rem);
  line-height: 1.8;
  font-weight: 300;
  color: var(--bk-text);
  letter-spacing: 0.04em;
  margin-top: 2rem;
  position: relative;
}
.bk-voices-quote::before,
.bk-voices-quote::after {
  content: '"';
  font-size: 3rem;
  color: var(--bk-accent-gold);
  opacity: 0.5;
  font-family: Georgia, serif;
  line-height: 0;
  vertical-align: middle;
  margin: 0 0.3rem;
}
.bk-voices-who {
  margin-top: 3rem;
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: var(--bk-text-mute);
}

/* ============================================
   11 · CTA FOOTER
   ============================================ */
.bk-cta-footer {
  padding: 10rem 2rem 6rem;
  background: var(--bk-bg-ink);
  color: #F5F1E8;
  text-align: center;
}
.bk-cta-footer h2 {
  font-family: var(--bk-serif);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: 0.04em;
  margin-bottom: 1.5rem;
}
.bk-cta-footer h2 em {
  font-style: normal;
  color: var(--bk-accent-gold);
  font-weight: 500;
}
.bk-cta-footer p {
  color: rgba(245, 241, 232, 0.55);
  font-size: 0.95rem;
  margin-bottom: 3rem;
  letter-spacing: 0.1em;
}
.bk-cta-footer-btns {
  display: inline-flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}
.bk-cta-footer .bk-btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 1rem 2.2rem;
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.25em;
  transition: transform var(--bk-ease), background var(--bk-ease), color var(--bk-ease);
}
.bk-btn--primary {
  background: var(--bk-accent-gold);
  color: var(--bk-bg-ink);
}
.bk-btn--primary:hover { transform: translateY(-3px); background: #fff; }
.bk-btn--ghost {
  border: 1px solid rgba(245, 241, 232, 0.2);
  color: #F5F1E8;
}
.bk-btn--ghost:hover {
  background: rgba(245, 241, 232, 0.1);
  border-color: var(--bk-accent-gold);
}

.bk-foot-mark {
  margin-top: 5rem;
  font-family: var(--bk-serif);
  font-size: 0.9rem;
  letter-spacing: 0.4em;
  color: rgba(245, 241, 232, 0.35);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .bk-hero-grid,
  .bk-manifesto-inner,
  .bk-inside-inner,
  .bk-months-stage,
  .bk-service-grid,
  .bk-ent-card { grid-template-columns: 1fr; gap: 3rem; }

  .bk-hero-right { justify-self: center; max-width: 420px; }

  .bk-why-grid { grid-template-columns: repeat(2, 1fr); }
  .bk-plans { grid-template-columns: repeat(2, 1fr); }
  .bk-standards-grid { grid-template-columns: repeat(2, 1fr); }
  .bk-standards-grid .bk-std-item:nth-child(2) { border-right: none; }
  .bk-standards-grid .bk-std-item:nth-child(-n+2) { border-bottom: 1px solid var(--bk-border); }
  .bk-months-grid { grid-template-columns: repeat(6, 1fr); }
  .bk-inside-items { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .bk-topbar { padding: 1rem 1.25rem; }
  .bk-hero { padding: 6rem 1.25rem 3rem; }
  .bk-manifesto,
  .bk-why,
  .bk-months,
  .bk-inside,
  .bk-pricing,
  .bk-service,
  .bk-enterprise,
  .bk-standards,
  .bk-voices,
  .bk-cta-footer { padding-left: 1.25rem; padding-right: 1.25rem; }
  .bk-why-grid,
  .bk-plans { grid-template-columns: 1fr; }
  .bk-standards-grid { grid-template-columns: repeat(2, 1fr); }
  .bk-months-grid { grid-template-columns: repeat(4, 1fr); }
  .bk-ent-card { padding: 2.5rem 1.8rem; }
  .bk-manifesto-quote::before { font-size: 6rem; top: -2rem; left: -0.5rem; }
  .bk-months-head { flex-direction: column; align-items: flex-start; }
  .bk-months-current { text-align: left; }
  .bk-hero-tag--1, .bk-hero-tag--2, .bk-hero-tag--3 { display: none; }
}