/* ============================================================
   茗之源 · 云南普洱茶官网
   云南茗之源网络科技有限公司
   ============================================================ */

:root {
  /* Color Palette */
  --color-primary: #2d3b32;
  --color-primary-deep: #1e2922;
  --color-wood: #4a3728;
  --color-accent: #c88a35;
  --color-accent-soft: #d4a35a;
  --color-bg: #f7f5f0;
  --color-bg-alt: #efebe3;
  --color-surface: #ffffff;
  --color-text: #2b2b2b;
  --color-text-muted: #5c5c5c;
  --color-text-light: #f7f5f0;
  --color-border: rgba(45, 59, 50, 0.12);
  --color-overlay: rgba(30, 41, 34, 0.55);

  /* Typography */
  --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", sans-serif;

  /* Spacing & Layout */
  --container: min(1120px, calc(100% - 3rem));
  --header-h: 72px;
  --section-y: clamp(4.5rem, 8vw, 7.5rem);
  --radius: 2px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);

  /* Shadows */
  --shadow-soft: 0 12px 40px rgba(45, 59, 50, 0.08);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

ul,
ol {
  list-style: none;
}

button,
input,
textarea {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

.container {
  width: var(--container);
  margin-inline: auto;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition),
    border-color var(--transition), transform var(--transition);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary-deep);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-soft);
  border-color: var(--color-accent-soft);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-light);
  border-color: rgba(247, 245, 240, 0.45);
}

.btn-ghost:hover {
  background: rgba(247, 245, 240, 0.1);
  border-color: var(--color-text-light);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-text-light);
}

.btn-sm {
  padding: 0.55rem 1.1rem;
  font-size: 0.8rem;
}

.btn-block {
  width: 100%;
}

.text-link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--color-accent);
  letter-spacing: 0.04em;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}

.text-link:hover {
  border-color: var(--color-accent);
  color: var(--color-wood);
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: var(--header-h);
  transition: background var(--transition), box-shadow var(--transition),
    backdrop-filter var(--transition);
}

.site-header.is-scrolled {
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}

.site-header.is-scrolled .brand-name,
.site-header.is-scrolled .nav-link {
  color: var(--color-primary);
}

.site-header.is-scrolled .brand-sub {
  color: var(--color-text-muted);
}

.site-header.is-scrolled .brand-mark {
  background: var(--color-primary);
  color: var(--color-bg);
}

.site-header.is-scrolled .nav-toggle span {
  background: var(--color-primary);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: var(--container);
  max-width: 1280px;
  height: 100%;
  margin-inline: auto;
  padding-inline: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 1001;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  background: var(--color-bg);
  color: var(--color-primary);
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-light);
  letter-spacing: 0.12em;
  transition: color var(--transition);
}

.brand-sub {
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: rgba(247, 245, 240, 0.65);
  transition: color var(--transition);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.5vw, 1.6rem);
}

.nav-link {
  position: relative;
  font-size: 0.875rem;
  color: rgba(247, 245, 240, 0.88);
  letter-spacing: 0.06em;
  padding: 0.35rem 0;
  transition: color var(--transition);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-accent-soft);
}

.site-header.is-scrolled .nav-link:hover,
.site-header.is-scrolled .nav-link.active {
  color: var(--color-accent);
}

.nav-link.active::after,
.nav-link:hover::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 2.5rem;
  height: 2.5rem;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-text-light);
  margin-inline: auto;
  transition: transform var(--transition), opacity var(--transition),
    background var(--transition);
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ---------- Section Shared ---------- */
.section {
  padding-block: var(--section-y);
}

.section-header {
  text-align: center;
  max-width: 36rem;
  margin-inline: auto;
  margin-bottom: clamp(2.5rem, 5vw, 3.75rem);
}

.section-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  line-height: 1.35;
  margin-bottom: 0.85rem;
}

.section-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.section-header.light .section-title {
  color: var(--color-text-light);
}

.section-header.light .section-desc {
  color: rgba(247, 245, 240, 0.7);
}

.subsection-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  text-align: center;
  margin-bottom: 1.75rem;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: var(--color-text-light);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  animation: heroZoom 22s ease-in-out infinite alternate;
}

@keyframes heroZoom {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.08);
  }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      180deg,
      rgba(30, 41, 34, 0.45) 0%,
      rgba(30, 41, 34, 0.35) 40%,
      rgba(30, 41, 34, 0.7) 100%
    ),
    radial-gradient(
      ellipse at 50% 60%,
      transparent 20%,
      rgba(30, 41, 34, 0.4) 100%
    );
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 6rem 1.5rem 4rem;
  max-width: 48rem;
  animation: heroFadeIn 1.2s ease 0.2s both;
}

@keyframes heroFadeIn {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-brand {
  font-family: var(--font-serif);
  font-size: clamp(2.75rem, 8vw, 5rem);
  font-weight: 700;
  letter-spacing: 0.35em;
  margin-bottom: 1.25rem;
  text-indent: 0.35em;
  line-height: 1.1;
  text-shadow: 0 2px 40px rgba(0, 0, 0, 0.25);
}

.hero-tagline {
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 2.4vw, 1.45rem);
  font-weight: 400;
  letter-spacing: 0.14em;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  color: rgba(247, 245, 240, 0.95);
}

.hero-desc {
  font-size: 0.95rem;
  color: rgba(247, 245, 240, 0.72);
  max-width: 32rem;
  margin-inline: auto;
  margin-bottom: 2.25rem;
  line-height: 1.9;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  z-index: 1;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 1.5rem;
  height: 2.5rem;
  border: 1px solid rgba(247, 245, 240, 0.4);
  border-radius: 1rem;
  animation: scrollPulse 2s ease infinite;
}

.scroll-line {
  display: block;
  width: 1px;
  height: 8px;
  margin-top: 0.5rem;
  background: var(--color-accent);
  animation: scrollDrop 2s ease infinite;
}

@keyframes scrollPulse {
  0%,
  100% {
    opacity: 0.6;
  }
  50% {
    opacity: 1;
  }
}

@keyframes scrollDrop {
  0% {
    transform: translateY(0);
    opacity: 1;
  }
  100% {
    transform: translateY(12px);
    opacity: 0;
  }
}

/* ---------- Brand Overview ---------- */
.brand-overview {
  background: var(--color-bg);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.feature-item {
  text-align: center;
  padding: 2rem 1.25rem;
  border-top: 1px solid var(--color-border);
}

.feature-num {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.feature-item h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.feature-item p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.85;
}

/* ---------- Featured Products ---------- */
.featured-products {
  background: var(--color-bg-alt);
}

.product-showcase {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.showcase-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.showcase-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

.showcase-media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.showcase-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}

.showcase-card:hover .showcase-media img {
  transform: scale(1.05);
}

.showcase-body {
  padding: 1.35rem 1.25rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.tag {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.showcase-body h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.showcase-body p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  flex: 1;
}

/* ---------- Regions Preview ---------- */
.regions-preview {
  background: var(--color-bg);
}

.region-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.region-card {
  position: relative;
  min-height: 320px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.region-visual {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.region-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.8s ease;
}

.region-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    transparent 20%,
    rgba(30, 41, 34, 0.85) 100%
  );
  pointer-events: none;
}

.region-card:hover .region-visual img {
  transform: scale(1.06);
}

.region-info {
  position: relative;
  z-index: 1;
  padding: 1.75rem 1.5rem;
  color: var(--color-text-light);
}

.region-info h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  letter-spacing: 0.12em;
  margin-bottom: 0.35rem;
}

.region-spots {
  font-size: 0.8rem;
  color: var(--color-accent-soft);
  letter-spacing: 0.1em;
  margin-bottom: 0.65rem;
}

.region-info p:not(.region-spots) {
  font-size: 0.85rem;
  color: rgba(247, 245, 240, 0.75);
  line-height: 1.7;
  margin-bottom: 0.25rem;
}

.region-info .text-link {
  color: var(--color-accent-soft);
}

.region-info .text-link:hover {
  color: var(--color-text-light);
  border-color: var(--color-text-light);
}

/* ---------- Origin Section ---------- */
.origin-section {
  background: var(--color-bg-alt);
}

.origin-detail-grid {
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
  margin-bottom: 4rem;
}

.origin-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.origin-detail.reverse {
  direction: rtl;
}

.origin-detail.reverse > * {
  direction: ltr;
}

.origin-detail-media {
  overflow: hidden;
  aspect-ratio: 5 / 3.5;
}

.origin-detail-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.origin-detail:hover .origin-detail-media img {
  transform: scale(1.04);
}

.region-label {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: 0.65rem;
}

.origin-detail-body h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.origin-trait {
  font-size: 0.9rem;
  color: var(--color-wood);
  margin-bottom: 0.85rem;
}

.origin-detail-body p:last-child {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  line-height: 1.9;
}

.eco-block {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2.5rem;
  align-items: center;
  padding: 2.5rem;
  background: var(--color-primary);
  color: var(--color-text-light);
}

.eco-content h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  color: var(--color-accent-soft);
}

.eco-content p {
  font-size: 0.9rem;
  line-height: 1.9;
  color: rgba(247, 245, 240, 0.8);
}

.eco-stats {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  border-left: 1px solid rgba(247, 245, 240, 0.15);
  padding-left: 2rem;
}

.eco-stat-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.75rem;
  color: var(--color-accent);
  letter-spacing: 0.06em;
  line-height: 1.2;
}

.eco-stat-label {
  font-size: 0.8rem;
  color: rgba(247, 245, 240, 0.6);
  letter-spacing: 0.1em;
}

/* ---------- Craft Section ---------- */
.craft-section {
  background:
    linear-gradient(160deg, var(--color-primary-deep) 0%, var(--color-primary) 55%, var(--color-wood) 100%);
  color: var(--color-text-light);
}

.craft-block {
  margin-bottom: 3.5rem;
}

.craft-block-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  letter-spacing: 0.12em;
  text-align: center;
  color: var(--color-accent-soft);
  margin-bottom: 2rem;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.75rem;
  counter-reset: step;
}

.process-steps li {
  position: relative;
  text-align: center;
  padding: 1.5rem 0.75rem;
  border: 1px solid rgba(247, 245, 240, 0.12);
  background: rgba(247, 245, 240, 0.04);
  transition: background var(--transition), border-color var(--transition);
}

.process-steps li:hover {
  background: rgba(200, 138, 53, 0.12);
  border-color: rgba(200, 138, 53, 0.35);
}

.process-steps li::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  font-family: var(--font-serif);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: 0.65rem;
}

.step-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  color: var(--color-text-light);
}

.process-steps p {
  font-size: 0.78rem;
  color: rgba(247, 245, 240, 0.65);
  line-height: 1.6;
}

.craft-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.craft-card {
  background: rgba(247, 245, 240, 0.05);
  border: 1px solid rgba(247, 245, 240, 0.1);
  overflow: hidden;
}

.craft-card-media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.craft-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}

.craft-card:hover .craft-card-media img {
  transform: scale(1.04);
}

.craft-card-body {
  padding: 1.5rem 1.35rem 1.75rem;
}

.craft-card-body h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  letter-spacing: 0.08em;
  color: var(--color-accent-soft);
  margin-bottom: 0.75rem;
}

.craft-card-body p {
  font-size: 0.875rem;
  color: rgba(247, 245, 240, 0.72);
  line-height: 1.85;
}

/* ---------- Products Section ---------- */
.products-section {
  background: var(--color-bg);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.55rem 1.25rem;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition),
    border-color var(--transition);
}

.filter-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.filter-btn.active {
  background: var(--color-primary);
  color: var(--color-text-light);
  border-color: var(--color-primary);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.product-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: opacity 0.4s ease, transform 0.4s ease, box-shadow var(--transition);
}

.product-card.is-hidden {
  display: none;
}

.product-card:hover {
  box-shadow: var(--shadow-soft);
  transform: translateY(-3px);
}

.product-media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-bg-alt);
}

.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}

.product-card:hover .product-media img {
  transform: scale(1.05);
}

.product-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0.65rem;
}

.product-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.product-meta span {
  padding-right: 0.5rem;
  border-right: 1px solid var(--color-border);
}

.product-meta span:last-child {
  border-right: none;
  padding-right: 0;
}

.product-body h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.product-tags span {
  font-size: 0.7rem;
  padding: 0.2rem 0.55rem;
  color: var(--color-wood);
  background: var(--color-bg-alt);
  letter-spacing: 0.04em;
}

.product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 0.5rem;
}

/* ---------- Culture Section ---------- */
.culture-section {
  background: var(--color-bg-alt);
}

.tasting-dims {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 4rem;
}

.dim-card {
  text-align: center;
  padding: 2rem 1.25rem;
  background: var(--color-surface);
  border-top: 2px solid var(--color-accent);
}

.dim-icon {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.75rem;
  color: var(--color-accent);
  margin-bottom: 0.85rem;
  letter-spacing: 0.1em;
}

.dim-card h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  margin-bottom: 0.65rem;
}

.dim-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.brew-section {
  margin-bottom: 3.5rem;
}

.brew-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.brew-card {
  padding: 1.5rem 1.25rem;
  background: var(--color-surface);
  border-left: 2px solid var(--color-primary);
}

.brew-card h4 {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  margin-bottom: 0.65rem;
}

.brew-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.storage-block {
  max-width: 720px;
  margin-inline: auto;
}

.storage-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.storage-list li {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1rem;
  align-items: start;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

.storage-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.storage-list strong {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--color-accent);
  letter-spacing: 0.08em;
}

.storage-list span {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ---------- About Section ---------- */
.about-section {
  background: var(--color-bg);
}

.about-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  margin-bottom: 3.5rem;
}

.about-story-media {
  overflow: hidden;
  aspect-ratio: 5 / 3.5;
}

.about-story-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-story-body h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}

.about-story-body p {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: 1rem;
}

.about-story-body p:last-child {
  margin-bottom: 0;
}

.about-promise {
  margin-bottom: 3.5rem;
}

.about-promise > h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  text-align: center;
  margin-bottom: 1.75rem;
}

.promise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.promise-grid article {
  padding: 1.75rem 1.35rem;
  border-top: 1px solid var(--color-accent);
  background: var(--color-bg-alt);
}

.promise-grid h4 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  margin-bottom: 0.65rem;
}

.promise-grid p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.cert-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  aspect-ratio: 3 / 4;
  max-height: 220px;
  border: 1px dashed rgba(45, 59, 50, 0.25);
  background: var(--color-bg-alt);
  text-align: center;
  padding: 1.5rem;
}

.cert-icon {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: 50%;
}

.cert-placeholder p {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--color-primary);
  letter-spacing: 0.06em;
}

.cert-note {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
}

/* ---------- Contact Section ---------- */
.contact-section {
  background: var(--color-bg-alt);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-group label {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--color-primary);
}

.form-group input,
.form-group textarea {
  padding: 0.85rem 1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(200, 138, 53, 0.15);
}

.form-group input.is-invalid,
.form-group textarea.is-invalid {
  border-color: #a94442;
}

.form-note {
  font-size: 0.85rem;
  min-height: 1.4em;
  color: var(--color-text-muted);
}

.form-note.is-success {
  color: var(--color-primary);
}

.form-note.is-error {
  color: #a94442;
}

.contact-info {
  padding: 2rem;
  background: var(--color-primary);
  color: var(--color-text-light);
}

.contact-info h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  letter-spacing: 0.06em;
  margin-bottom: 1.5rem;
  line-height: 1.5;
  color: var(--color-accent-soft);
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.info-list li {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(247, 245, 240, 0.8);
}

.info-label {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--color-accent);
}

.info-list a:hover {
  color: var(--color-accent-soft);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-primary-deep);
  color: rgba(247, 245, 240, 0.7);
  padding-block: 3rem 2rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer-brand .brand-mark {
  background: var(--color-accent);
  color: var(--color-primary-deep);
}

.footer-company {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--color-text-light);
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}

.footer-tagline {
  font-size: 0.8rem;
  color: rgba(247, 245, 240, 0.5);
  letter-spacing: 0.04em;
}

.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.85rem;
  line-height: 1.7;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(247, 245, 240, 0.1);
}

.footer-meta a:hover {
  color: var(--color-accent-soft);
}

.footer-copy {
  font-size: 0.75rem;
  color: rgba(247, 245, 240, 0.4);
  letter-spacing: 0.04em;
}

/* ---------- Success Modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal[hidden] {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(30, 41, 34, 0.65);
  backdrop-filter: blur(4px);
  animation: modalFade 0.3s ease;
}

.modal-dialog {
  position: relative;
  z-index: 1;
  width: min(100%, 400px);
  padding: 2.5rem 2rem 2rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  text-align: center;
  box-shadow: var(--shadow-soft);
  animation: modalPop 0.35s cubic-bezier(0.34, 1.4, 0.64, 1);
}

.modal-close {
  position: absolute;
  top: 0.65rem;
  right: 0.85rem;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.modal-close:hover {
  color: var(--color-primary);
}

.modal-icon {
  display: grid;
  place-items: center;
  width: 3.5rem;
  height: 3.5rem;
  margin: 0 auto 1.25rem;
  font-size: 1.5rem;
  color: var(--color-bg);
  background: var(--color-accent);
  border-radius: 50%;
}

.modal-dialog h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.modal-dialog p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 1.75rem;
}

@keyframes modalFade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes modalPop {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .product-showcase,
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .tasting-dims,
  .brew-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  :root {
    --container: min(100%, calc(100% - 2rem));
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    inset: 0;
    background: rgba(30, 41, 34, 0.97);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
  }

  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
  }

  .nav-link {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    color: var(--color-text-light);
    letter-spacing: 0.2em;
  }

  .site-header.is-scrolled .nav-link {
    color: var(--color-text-light);
  }

  .feature-grid,
  .region-cards,
  .craft-duo,
  .promise-grid {
    grid-template-columns: 1fr;
  }

  .origin-detail,
  .origin-detail.reverse,
  .eco-block,
  .about-story,
  .contact-layout {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .eco-stats {
    border-left: none;
    border-top: 1px solid rgba(247, 245, 240, 0.15);
    padding-left: 0;
    padding-top: 1.5rem;
    flex-direction: row;
    justify-content: space-around;
    text-align: center;
  }

  .eco-block {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 640px) {
  .hero-brand {
    letter-spacing: 0.2em;
    text-indent: 0.2em;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-cta .btn {
    width: 100%;
  }

  .product-showcase,
  .products-grid,
  .process-steps,
  .tasting-dims,
  .brew-grid,
  .cert-grid {
    grid-template-columns: 1fr;
  }

  .storage-list li {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .filter-bar {
    gap: 0.4rem;
  }

  .filter-btn {
    padding: 0.45rem 0.85rem;
    font-size: 0.78rem;
  }

  .product-actions {
    flex-direction: column;
  }

  .product-actions .btn {
    width: 100%;
  }

  .contact-form,
  .contact-info {
    padding: 1.5rem;
  }

  .footer-meta p {
    font-size: 0.8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .hero-img {
    animation: none;
  }
}