:root {
  --ink: #10231f;
  --ink-soft: #39504a;
  --paper: #fffdf8;
  --paper-deep: #f5f0e6;
  --surface: #ffffff;
  --line: #dfe6e1;
  --brand: #e94f2c;
  --brand-strong: #c93d1e;
  --brand-soft: #fff0e9;
  --mint: #70c7ac;
  --mint-soft: #e3f4ee;
  --night: #10231f;
  --shadow: 0 18px 50px rgba(16, 35, 31, 0.08);
  --shadow-hover: 0 22px 55px rgba(16, 35, 31, 0.14);
  --radius-sm: 10px;
  --radius: 20px;
  --radius-lg: 32px;
  --container: min(1160px, calc(100% - 40px));
  --font-sans: Inter, "Segoe UI Variable", "Segoe UI", Arial, sans-serif;
  --font-display: "Segoe UI Variable Display", "Aptos Display", "Segoe UI", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: 0.4;
  background-image: radial-gradient(rgba(16, 35, 31, 0.07) 0.7px, transparent 0.7px);
  background-size: 18px 18px;
  mask-image: linear-gradient(to bottom, #000, transparent 50%);
}

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

img {
  height: auto;
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--mint);
  outline-offset: 3px;
}

::selection {
  color: var(--night);
  background: #bdebdc;
}

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

.skip-link {
  position: fixed;
  z-index: 999;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  color: #fff;
  background: var(--night);
  border-radius: var(--radius-sm);
  transform: translateY(-180%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: none;
}

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  border-bottom: 1px solid rgba(16, 35, 31, 0.08);
  background: rgba(255, 253, 248, 0.9);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  min-height: 74px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  width: 183px;
  flex: 0 0 auto;
  align-items: center;
  text-decoration: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-list {
  display: flex;
  margin: 0;
  padding: 0;
  align-items: center;
  gap: 5px;
  list-style: none;
}

.nav-link {
  display: inline-flex;
  min-height: 42px;
  padding: 8px 13px;
  align-items: center;
  color: var(--ink-soft);
  border-radius: 999px;
  font-size: 0.94rem;
  font-weight: 650;
  text-decoration: none;
  transition: color 160ms ease, background 160ms ease;
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--ink);
  background: var(--mint-soft);
}

.nav-cta {
  display: inline-flex;
  min-height: 42px;
  padding: 8px 17px;
  align-items: center;
  color: #fff;
  background: var(--night);
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 750;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease;
}

.nav-cta:hover {
  background: #1d4038;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 11px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 50%;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 4px 0;
  background: var(--ink);
  border-radius: 2px;
}

main {
  min-height: 65vh;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 76px 0 52px;
}

.hero::after {
  position: absolute;
  z-index: -1;
  top: -220px;
  right: -170px;
  width: 620px;
  height: 620px;
  content: "";
  background: radial-gradient(circle, rgba(241, 90, 55, 0.17), rgba(241, 90, 55, 0) 67%);
}

.hero-grid {
  display: grid;
  align-items: center;
  gap: clamp(44px, 7vw, 96px);
  grid-template-columns: 1.03fr 0.97fr;
}

.eyebrow,
.section-tag,
.kicker {
  display: inline-flex;
  margin: 0 0 16px;
  align-items: center;
  gap: 9px;
  color: var(--brand-strong);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow::before,
.section-tag::before,
.kicker::before {
  width: 22px;
  height: 2px;
  content: "";
  background: currentColor;
}

.hero-title {
  max-width: 720px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 6.8vw, 6.25rem);
  font-weight: 780;
  letter-spacing: -0.067em;
  line-height: 0.96;
}

.hero-title em {
  color: var(--brand);
  font-style: normal;
}

.hero-copy {
  max-width: 650px;
  margin: 28px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.05rem, 1.5vw, 1.22rem);
}

.hero-actions {
  display: flex;
  margin-top: 32px;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  padding: 12px 20px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 760;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  background: var(--brand);
  box-shadow: 0 12px 30px rgba(233, 79, 44, 0.22);
}

.button-primary:hover {
  background: var(--brand-strong);
  box-shadow: 0 16px 34px rgba(233, 79, 44, 0.28);
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.75);
}

.button-secondary:hover {
  background: #fff;
  box-shadow: var(--shadow);
}

.button svg,
.text-link svg {
  width: 18px;
  height: 18px;
}

.hero-visual {
  position: relative;
  min-height: 505px;
}

.hero-photo-shell {
  position: absolute;
  inset: 18px 10px 45px 52px;
  overflow: hidden;
  background: #eaf3ef;
  border: 1px solid rgba(16, 35, 31, 0.08);
  border-radius: 45% 45% 20% 20% / 34% 34% 16% 16%;
  box-shadow: var(--shadow);
  transform: rotate(2.5deg);
}

.hero-photo-shell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: rotate(-2.5deg) scale(1.08);
}

.hero-note {
  position: absolute;
  right: -6px;
  bottom: 24px;
  width: min(275px, 72%);
  padding: 18px 20px;
  color: #fff;
  background: var(--night);
  border-radius: 17px;
  box-shadow: 0 20px 45px rgba(16, 35, 31, 0.22);
}

.hero-note strong,
.hero-note span {
  display: block;
}

.hero-note strong {
  margin-bottom: 4px;
  font-size: 0.98rem;
}

.hero-note span {
  color: #cfe5de;
  font-size: 0.82rem;
  line-height: 1.5;
}

.signal-badge {
  position: absolute;
  top: 0;
  left: 7px;
  display: grid;
  width: 92px;
  height: 92px;
  place-items: center;
  color: var(--night);
  background: #ffd74a;
  border: 7px solid var(--paper);
  border-radius: 50%;
  font-size: 0.77rem;
  font-weight: 850;
  letter-spacing: 0.04em;
  text-align: center;
  text-transform: uppercase;
  transform: rotate(-9deg);
}

.stats-strip {
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.62);
}

.stats-grid {
  display: grid;
  padding: 22px 0;
  grid-template-columns: repeat(4, 1fr);
}

.stat {
  padding: 4px 28px;
  border-left: 1px solid var(--line);
}

.stat:first-child {
  padding-left: 0;
  border-left: 0;
}

.stat strong,
.stat span {
  display: block;
}

.stat strong {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.035em;
}

.stat span {
  color: var(--ink-soft);
  font-size: 0.84rem;
}

.section {
  padding: 88px 0;
}

.section-compact {
  padding: 58px 0;
}

.section-tint {
  background: var(--paper-deep);
}

.section-dark {
  color: #fff;
  background: var(--night);
}

.section-heading {
  display: flex;
  margin-bottom: 34px;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
}

.section-heading-copy {
  max-width: 710px;
}

.section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.55rem);
  font-weight: 760;
  letter-spacing: -0.052em;
  line-height: 1.04;
}

.section-intro {
  max-width: 650px;
  margin: 15px 0 0;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.section-dark .section-intro {
  color: #b9d1ca;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--brand-strong);
  font-weight: 780;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
}

.category-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(5, 1fr);
}

.category-card {
  position: relative;
  min-height: 230px;
  padding: 24px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius);
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.category-card:hover {
  border-color: rgba(233, 79, 44, 0.35);
  box-shadow: var(--shadow-hover);
  transform: translateY(-5px);
}

.category-number {
  display: inline-grid;
  width: 38px;
  height: 38px;
  margin-bottom: 34px;
  place-items: center;
  color: var(--brand-strong);
  background: var(--brand-soft);
  border-radius: 50%;
  font-size: 0.78rem;
  font-weight: 850;
}

.category-card h3 {
  margin: 0 0 7px;
  font-size: 1.12rem;
  letter-spacing: -0.02em;
}

.category-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.86rem;
  line-height: 1.55;
}

.category-arrow {
  position: absolute;
  right: 17px;
  bottom: 16px;
  font-size: 1.25rem;
}

.product-grid {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.product-card {
  position: relative;
  display: flex;
  min-width: 0;
  overflow: hidden;
  flex-direction: column;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: 0 1px 0 rgba(16, 35, 31, 0.02);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.product-card:hover {
  border-color: rgba(16, 35, 31, 0.18);
  box-shadow: var(--shadow-hover);
  transform: translateY(-5px);
}

.product-card[hidden] {
  display: none;
}

.product-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: #eef3f0;
}

.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 350ms ease;
}

.product-card:hover .product-media img {
  transform: scale(1.035);
}

.product-badge {
  position: absolute;
  top: 13px;
  left: 13px;
  padding: 6px 10px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.93);
  border-radius: 999px;
  box-shadow: 0 4px 16px rgba(16, 35, 31, 0.12);
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.product-body {
  display: flex;
  padding: 20px;
  flex: 1;
  flex-direction: column;
}

.product-brand {
  margin: 0 0 3px;
  color: var(--brand-strong);
  font-size: 0.71rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.product-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: -0.035em;
}

.product-card h3 a {
  text-decoration: none;
}

.product-card h3 a::after {
  position: absolute;
  inset: 0;
  content: "";
}

.product-summary {
  margin: 10px 0 18px;
  color: var(--ink-soft);
  font-size: 0.88rem;
  line-height: 1.55;
}

.product-spec-line {
  display: flex;
  margin-top: auto;
  padding-top: 14px;
  justify-content: space-between;
  gap: 8px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.74rem;
}

.product-spec-line strong {
  color: var(--ink);
}

.guide-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.guide-card {
  position: relative;
  display: flex;
  min-height: 340px;
  padding: 26px;
  overflow: hidden;
  flex-direction: column;
  color: #fff;
  background: #1b3832;
  border-radius: var(--radius);
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.guide-card:nth-child(3n + 2) {
  color: var(--ink);
  background: #ffd74a;
}

.guide-card:nth-child(3n) {
  background: var(--brand);
}

.guide-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-5px);
}

.guide-card::before {
  position: absolute;
  top: -90px;
  right: -70px;
  width: 250px;
  height: 250px;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  box-shadow: 0 0 0 32px rgba(255, 255, 255, 0.05), 0 0 0 66px rgba(255, 255, 255, 0.04);
}

.guide-card:nth-child(3n + 2)::before {
  border-color: rgba(16, 35, 31, 0.18);
  box-shadow: 0 0 0 32px rgba(16, 35, 31, 0.04), 0 0 0 66px rgba(16, 35, 31, 0.03);
}

.guide-meta {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.75rem;
  font-weight: 760;
}

.guide-card h3 {
  position: relative;
  max-width: 390px;
  margin: auto 0 15px;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 2.6vw, 2.25rem);
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.guide-card p {
  position: relative;
  margin: 0;
  opacity: 0.84;
  font-size: 0.86rem;
  line-height: 1.55;
}

.method-panel {
  display: grid;
  overflow: hidden;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  grid-template-columns: 0.83fr 1.17fr;
}

.method-lead {
  display: flex;
  min-height: 470px;
  padding: clamp(35px, 5vw, 62px);
  flex-direction: column;
  justify-content: space-between;
  color: #fff;
  background: var(--night);
}

.method-lead h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4vw, 4rem);
  letter-spacing: -0.06em;
  line-height: 1;
}

.method-lead p {
  max-width: 400px;
  margin: 28px 0 0;
  color: #bad2cb;
}

.method-mark {
  display: grid;
  width: 88px;
  height: 88px;
  place-items: center;
  color: var(--night);
  background: var(--mint);
  border-radius: 50%;
  font-size: 2rem;
  font-weight: 850;
}

.method-steps {
  display: grid;
  padding: clamp(35px, 5vw, 60px);
  align-content: center;
  gap: 0;
}

.method-step {
  display: grid;
  padding: 25px 0;
  align-items: start;
  gap: 20px;
  border-bottom: 1px solid var(--line);
  grid-template-columns: 42px 1fr;
}

.method-step:last-child {
  border-bottom: 0;
}

.method-step-number {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--brand-strong);
  background: var(--brand-soft);
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 850;
}

.method-step h3,
.method-step p {
  margin: 0;
}

.method-step h3 {
  margin-bottom: 4px;
  font-size: 1rem;
}

.method-step p {
  color: var(--ink-soft);
  font-size: 0.89rem;
}

.newsletter-panel {
  display: grid;
  padding: clamp(32px, 6vw, 70px);
  align-items: center;
  gap: 30px;
  color: #fff;
  background: var(--brand);
  border-radius: var(--radius-lg);
  grid-template-columns: 1fr auto;
}

.newsletter-panel h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  letter-spacing: -0.055em;
  line-height: 1.02;
}

.newsletter-panel p {
  max-width: 650px;
  margin: 12px 0 0;
  color: #ffe2d8;
}

.newsletter-panel .button {
  color: var(--ink);
  background: #fff;
}

.breadcrumb {
  display: flex;
  margin: 0 0 26px;
  padding: 0;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--ink-soft);
  font-size: 0.82rem;
  list-style: none;
}

.breadcrumb li:not(:last-child)::after {
  margin-left: 8px;
  content: "/";
  color: #9aaaa5;
}

.breadcrumb a {
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.page-hero {
  padding: 60px 0 48px;
}

.page-hero-inner {
  max-width: 860px;
}

.page-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 6vw, 5.6rem);
  font-weight: 770;
  letter-spacing: -0.065em;
  line-height: 0.98;
}

.page-lead {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.02rem, 1.6vw, 1.2rem);
}

.catalog-toolbar {
  display: flex;
  margin-bottom: 30px;
  padding: 17px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 10px 30px rgba(16, 35, 31, 0.04);
}

.catalog-search {
  position: relative;
  min-width: min(100%, 290px);
  flex: 1 1 310px;
}

.catalog-search svg {
  position: absolute;
  top: 50%;
  left: 14px;
  width: 18px;
  transform: translateY(-50%);
}

.catalog-search input {
  width: 100%;
  min-height: 46px;
  padding: 9px 14px 9px 43px;
  color: var(--ink);
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 999px;
}

.filter-list {
  display: flex;
  flex: 2 1 540px;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 7px;
}

.filter-button {
  min-height: 39px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.77rem;
  font-weight: 750;
}

.filter-button:hover,
.filter-button[aria-pressed="true"] {
  color: #fff;
  border-color: var(--night);
  background: var(--night);
}

.result-count {
  margin: -12px 0 22px;
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.empty-results {
  padding: 36px;
  border: 1px dashed #aebdb8;
  background: var(--mint-soft);
  border-radius: var(--radius);
  text-align: center;
}

.product-detail-hero {
  padding: 52px 0 66px;
}

.product-detail-grid {
  display: grid;
  align-items: center;
  gap: clamp(38px, 7vw, 88px);
  grid-template-columns: 1fr 1fr;
}

.product-detail-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5.6rem);
  letter-spacing: -0.07em;
  line-height: 0.94;
}

.product-detail-summary {
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: 1.12rem;
}

.product-detail-tags {
  display: flex;
  margin-top: 24px;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-flex;
  padding: 7px 11px;
  align-items: center;
  gap: 6px;
  color: var(--ink);
  background: var(--mint-soft);
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 780;
}

.product-photo-frame {
  overflow: hidden;
  background: #eef2f0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.product-photo-frame img {
  width: 100%;
  aspect-ratio: 1 / 0.83;
  object-fit: cover;
}

.photo-credit {
  margin: 10px 4px 0;
  color: var(--ink-soft);
  font-size: 0.7rem;
  text-align: right;
}

.photo-credit a:hover {
  color: var(--brand-strong);
}

.verdict-panel {
  padding: 30px;
  border-left: 5px solid var(--brand);
  background: var(--brand-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.verdict-panel h2,
.verdict-panel p {
  margin: 0;
}

.verdict-panel h2 {
  margin-bottom: 8px;
  font-size: 1rem;
}

.detail-columns {
  display: grid;
  gap: 28px;
  grid-template-columns: 1fr 1fr;
}

.detail-card {
  padding: 28px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
}

.detail-card h2,
.detail-card h3 {
  margin-top: 0;
}

.detail-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.detail-list li {
  position: relative;
  padding: 10px 0 10px 26px;
  border-bottom: 1px solid var(--line);
}

.detail-list li:last-child {
  border-bottom: 0;
}

.detail-list li::before {
  position: absolute;
  top: 17px;
  left: 3px;
  width: 9px;
  height: 9px;
  content: "";
  background: var(--mint);
  border-radius: 50%;
}

.detail-card.caution .detail-list li::before {
  background: #f2a53b;
}

.spec-table {
  width: 100%;
  overflow: hidden;
  border-collapse: collapse;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
}

.spec-table th,
.spec-table td {
  padding: 16px 19px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.spec-table tr:last-child th,
.spec-table tr:last-child td {
  border-bottom: 0;
}

.spec-table th {
  width: 36%;
  color: var(--ink-soft);
  background: #fbfaf6;
  font-size: 0.84rem;
}

.source-note {
  margin-top: 24px;
  padding: 18px 20px;
  color: var(--ink-soft);
  background: var(--mint-soft);
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
}

.article-header {
  padding: 56px 0 50px;
}

.article-header-inner {
  max-width: 940px;
}

.article-title {
  max-width: 920px;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6.3vw, 5.7rem);
  letter-spacing: -0.068em;
  line-height: 0.97;
}

.article-deck {
  max-width: 780px;
  margin: 26px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.06rem, 1.7vw, 1.24rem);
}

.article-byline {
  display: flex;
  margin-top: 24px;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.article-byline span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-layout {
  display: grid;
  padding-bottom: 90px;
  align-items: start;
  gap: clamp(36px, 7vw, 90px);
  grid-template-columns: 235px minmax(0, 730px);
}

.article-toc {
  position: sticky;
  top: 104px;
  padding: 22px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
}

.article-toc strong {
  display: block;
  margin-bottom: 12px;
  font-size: 0.76rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.article-toc ol {
  margin: 0;
  padding-left: 19px;
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.article-toc li + li {
  margin-top: 8px;
}

.article-toc a {
  text-decoration: none;
}

.article-toc a:hover {
  color: var(--brand-strong);
  text-decoration: underline;
}

.article-content {
  min-width: 0;
  font-size: 1.04rem;
}

.article-intro {
  margin: 0 0 44px;
  padding: 25px 27px;
  color: var(--ink);
  background: var(--mint-soft);
  border-radius: var(--radius);
  font-size: 1.12rem;
  font-weight: 560;
}

.article-section {
  margin: 0 0 48px;
}

.article-section h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.55rem);
  letter-spacing: -0.045em;
  line-height: 1.12;
}

.article-section p {
  margin: 0 0 18px;
  color: #2c413c;
}

.checklist {
  margin: 24px 0 0;
  padding: 21px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  list-style: none;
}

.checklist li {
  position: relative;
  padding: 8px 0 8px 32px;
}

.checklist li::before {
  position: absolute;
  top: 10px;
  left: 0;
  display: grid;
  width: 22px;
  height: 22px;
  content: "✓";
  place-items: center;
  color: #fff;
  background: var(--night);
  border-radius: 50%;
  font-size: 0.69rem;
  font-weight: 900;
}

.faq-block {
  margin-top: 62px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
}

.faq-block h2 {
  margin: 0 0 24px;
  font-family: var(--font-display);
  font-size: 2.3rem;
  letter-spacing: -0.045em;
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item:first-of-type {
  border-top: 1px solid var(--line);
}

.faq-item summary {
  position: relative;
  padding: 19px 42px 19px 0;
  cursor: pointer;
  font-weight: 760;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  position: absolute;
  top: 17px;
  right: 4px;
  content: "+";
  color: var(--brand);
  font-size: 1.45rem;
  line-height: 1;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  margin: 0;
  padding: 0 42px 20px 0;
  color: var(--ink-soft);
}

.simple-layout {
  display: grid;
  padding: 30px 0 90px;
  align-items: start;
  gap: clamp(35px, 7vw, 85px);
  grid-template-columns: 0.62fr 1.38fr;
}

.simple-aside {
  padding: 25px;
  color: #fff;
  background: var(--night);
  border-radius: var(--radius);
}

.simple-aside p {
  margin: 0;
  color: #c4dad4;
  font-size: 0.9rem;
}

.simple-content {
  max-width: 760px;
}

.simple-content h2 {
  margin: 42px 0 12px;
  font-family: var(--font-display);
  font-size: 1.8rem;
  letter-spacing: -0.035em;
}

.simple-content h2:first-child {
  margin-top: 0;
}

.simple-content p,
.simple-content li {
  color: #30443f;
}

.simple-content a {
  color: var(--brand-strong);
}

.credit-list {
  display: grid;
  margin: 0;
  padding: 0;
  gap: 14px;
  list-style: none;
}

.credit-item {
  display: grid;
  padding: 17px;
  align-items: center;
  gap: 17px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius-sm);
  grid-template-columns: 88px 1fr;
}

.credit-item img {
  width: 88px;
  height: 68px;
  object-fit: cover;
  border-radius: 8px;
}

.credit-item strong,
.credit-item span {
  display: block;
}

.credit-item span {
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.notice {
  padding: 20px 22px;
  border: 1px solid #efd58a;
  background: #fff8dc;
  border-radius: var(--radius-sm);
}

.not-found {
  display: grid;
  min-height: 70vh;
  padding: 70px 0;
  place-items: center;
  text-align: center;
}

.not-found-code {
  margin: 0;
  color: var(--brand);
  font-family: var(--font-display);
  font-size: clamp(7rem, 20vw, 14rem);
  font-weight: 850;
  letter-spacing: -0.09em;
  line-height: 0.75;
}

.not-found h1 {
  margin: 30px 0 12px;
  font-size: 2rem;
}

.not-found p {
  max-width: 530px;
  margin: 0 auto 25px;
  color: var(--ink-soft);
}

.site-footer {
  padding: 66px 0 26px;
  color: #fff;
  background: var(--night);
}

.footer-grid {
  display: grid;
  gap: 50px;
  grid-template-columns: 1.35fr repeat(3, 0.72fr);
}

.footer-brand img {
  width: 185px;
  padding: 9px 12px;
  background: #fffdf8;
  border-radius: 11px;
}

.footer-brand p {
  max-width: 340px;
  margin: 19px 0 0;
  color: #b8cec8;
  font-size: 0.9rem;
}

.footer-column h2 {
  margin: 0 0 14px;
  color: #7ed5b9;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-column ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-column li + li {
  margin-top: 8px;
}

.footer-column a {
  color: #e0ece8;
  font-size: 0.85rem;
  text-decoration: none;
}

.footer-column a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-bottom {
  display: flex;
  margin-top: 52px;
  padding-top: 20px;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
  color: #8fa8a1;
  font-size: 0.74rem;
}

@media (max-width: 1040px) {
  .category-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .footer-grid {
    grid-template-columns: 1.3fr repeat(3, 0.8fr);
  }
}

@media (max-width: 820px) {
  :root {
    --container: min(100% - 30px, 720px);
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 15px;
    left: 15px;
    display: none;
    padding: 14px;
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
    border: 1px solid var(--line);
    background: #fffdf8;
    border-radius: 0 0 18px 18px;
    box-shadow: var(--shadow);
  }

  .site-nav[data-open="true"] {
    display: flex;
  }

  .nav-list {
    align-items: stretch;
    flex-direction: column;
  }

  .nav-link,
  .nav-cta {
    width: 100%;
    justify-content: center;
  }

  .hero {
    padding-top: 55px;
  }

  .hero-grid,
  .product-detail-grid,
  .method-panel,
  .simple-layout {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 600px;
  }

  .hero-visual {
    min-height: 470px;
  }

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

  .stat:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }

  .stat:nth-child(n + 3) {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
  }

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

  .method-lead {
    min-height: 360px;
  }

  .catalog-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .catalog-search {
    width: 100%;
    min-width: 0;
    flex: none;
  }

  .filter-list {
    width: 100%;
    min-width: 0;
    flex: 0;
    justify-content: flex-start;
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-toc {
    position: static;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  :root {
    --container: calc(100% - 24px);
  }

  .header-inner {
    min-height: 66px;
  }

  .brand {
    width: 158px;
  }

  .hero-title {
    font-size: clamp(3rem, 15vw, 4.5rem);
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 390px;
  }

  .hero-photo-shell {
    inset: 20px 4px 42px 22px;
  }

  .signal-badge {
    width: 76px;
    height: 76px;
    border-width: 5px;
    font-size: 0.63rem;
  }

  .hero-note {
    right: 0;
    bottom: 12px;
  }

  .stats-grid,
  .category-grid,
  .product-grid,
  .guide-grid,
  .detail-columns,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .stat,
  .stat:first-child,
  .stat:nth-child(3) {
    margin: 0;
    padding: 14px 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .stat:first-child {
    border-top: 0;
  }

  .section {
    padding: 65px 0;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .category-card {
    min-height: 190px;
  }

  .guide-card {
    min-height: 310px;
  }

  .newsletter-panel {
    grid-template-columns: 1fr;
  }

  .newsletter-panel .button {
    width: 100%;
  }

  .product-detail-hero {
    padding-top: 38px;
  }

  .product-detail-title,
  .article-title,
  .page-title {
    font-size: clamp(2.6rem, 13vw, 4rem);
  }

  .spec-table,
  .spec-table tbody,
  .spec-table tr,
  .spec-table th,
  .spec-table td {
    display: block;
    width: 100%;
  }

  .spec-table th {
    padding-bottom: 4px;
    border-bottom: 0;
  }

  .spec-table td {
    padding-top: 4px;
  }

  .article-header {
    padding-top: 40px;
  }

  .article-toc {
    padding: 18px;
  }

  .simple-aside {
    display: none;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media print {
  .site-header,
  .site-footer,
  .article-toc,
  .hero-actions,
  .newsletter-panel {
    display: none !important;
  }

  body {
    color: #000;
    background: #fff;
  }

  .article-layout {
    display: block;
  }

  a {
    text-decoration: none;
  }
}