@font-face {
  font-family: 'Nanum Gothic';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/nanum-gothic-400.ttf') format('truetype');
}
@font-face {
  font-family: 'Nanum Gothic';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/nanum-gothic-700.ttf') format('truetype');
}
@font-face {
  font-family: 'Nanum Gothic';
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url('../fonts/nanum-gothic-800.ttf') format('truetype');
}

:root {
  --color-primary: #03C75A;
  --color-primary-light: #35d479;
  --color-primary-dark: #02a94b;
  --color-accent: #03C75A;
  --color-accent-light: #35d479;
  --color-text: #1e1e1e;
  --color-text-light: #555555;
  --color-text-muted: #888888;
  --color-bg: #ffffff;
  --color-bg-alt: #f8f9fa;
  --color-bg-dark: #1a1f24;
  --color-border: #e5e5e5;
  --color-white: #ffffff;

  --font-family: 'Nanum Gothic', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --line-height: 1.7;
  --line-height-heading: 1.3;

  --max-width: 1200px;
  --header-height: 72px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition: 0.25s ease;
}

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--color-primary-dark);
}

ul { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}
.section--alt {
  background: var(--color-bg-alt);
}
.section__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
  position: relative;
  padding-bottom: 16px;
}
.section__title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 48px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
}
.section__title--center {
  text-align: center;
}
.section__title--center::after {
  left: 50%;
  transform: translateX(-50%);
}
.section__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  margin-bottom: 48px;
}

/* ===== Header ===== */
.page-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  display: flex;
  align-items: center;
}
.page-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
}
.logo img {
  height: 36px;
  width: auto;
}
.logo:hover {
  color: var(--color-primary);
}

/* ===== Navigation ===== */
.nav__list {
  display: flex;
  gap: 4px;
}
.nav__link {
  display: block;
  padding: 8px 14px;
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text-light);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.nav__link:hover,
.nav__link--active {
  color: var(--color-primary);
  background: rgba(3, 199, 90, 0.06);
}

/* ===== Hero ===== */
.hero {
  margin-top: var(--header-height);
  position: relative;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.35);
}
.hero__content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  padding: 20px;
  color: var(--color-white);
}
.hero__logo {
  width: 100px;
  height: auto;
  margin: 0 auto 20px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.hero__title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.hero__desc {
  font-size: var(--font-size-lg);
  opacity: 0.85;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero__cta {
  display: inline-block;
  padding: 14px 36px;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--font-size-base);
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: all var(--transition);
}
.hero__cta:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Page hero (smaller, for sub-pages) */
.page-hero {
  margin-top: var(--header-height);
  background: linear-gradient(135deg, #03C75A 0%, #02a94b 100%);
  padding: 64px 0;
  text-align: center;
}
.page-hero__title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 8px;
}
.page-hero__subtitle {
  font-size: var(--font-size-base);
  color: rgba(255,255,255,0.85);
}

/* ===== Cards ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.card__image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--color-bg-alt);
}
.card__body {
  padding: 20px 24px 24px;
}
.card__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}
.card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* Card with icon - non-interactive info card */
.card--icon {
  text-align: center;
  padding: 40px 24px;
  box-shadow: none;
  border: 1px solid var(--color-border);
}
.card--icon:hover {
  transform: none;
  box-shadow: none;
}
.card__icon {
  width: 56px;
  height: 56px;
  background: var(--color-bg-alt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.5rem;
  color: var(--color-primary);
}

/* ===== Gallery ===== */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.gallery__item {
  cursor: pointer;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  position: relative;
}
.gallery__item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}
.gallery__item:hover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.05);
}
.gallery__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}

/* ===== Lightbox ===== */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.lightbox.is-open {
  display: flex;
}
.lightbox__image {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-sm);
}
.lightbox__close {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.15);
  border: none;
  border-radius: 50%;
  color: var(--color-white);
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  z-index: 2001;
}
.lightbox__close:hover {
  background: rgba(255,255,255,0.3);
}

/* ===== Board Table ===== */
.board-table {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.board-table__header {
  display: grid;
  grid-template-columns: 80px 1fr 120px 120px;
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 700;
  font-size: var(--font-size-sm);
}
.board-table__header .board-table__cell {
  padding: 14px 16px;
}
.board-table__row {
  display: grid;
  grid-template-columns: 80px 1fr 120px 120px;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}
.board-table__row:last-child {
  border-bottom: none;
}
.board-table__row:hover {
  background: var(--color-bg-alt);
}
.board-table__cell {
  padding: 12px 16px;
  font-size: var(--font-size-sm);
  display: flex;
  align-items: center;
}
.board-table__cell--num {
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.8rem;
}
.board-table__cell--title a {
  color: var(--color-text);
  font-weight: 700;
}
.board-table__cell--title a:hover {
  color: var(--color-primary);
}
.board-table__cell--author {
  justify-content: center;
  color: var(--color-text-light);
}
.board-table__cell--date {
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.8rem;
}
.board-table__nodata {
  padding: 48px 0;
  text-align: center;
  color: var(--color-text-muted);
}

/* ===== Contact Buttons ===== */
.contact-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 32px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn--outline {
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn--accent {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn--accent:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

/* ===== Company Info ===== */
.company-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  margin-top: 32px;
}
.company-info__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}
.company-info__icon {
  width: 40px;
  height: 40px;
  background: rgba(3, 199, 90, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
  font-size: 1.1rem;
}
.company-info__label {
  display: block;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 2px;
}

/* ===== Quick Links / Page Previews ===== */
.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.link-card {
  display: block;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: all var(--transition);
  color: var(--color-text);
}
.link-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
  color: var(--color-text);
}
.link-card__icon {
  font-size: 2rem;
  margin-bottom: 12px;
}
.link-card__title {
  font-size: var(--font-size-base);
  font-weight: 700;
}

/* ===== Footer ===== */
.page-footer {
  background: var(--color-bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 56px 0 80px;
  font-size: var(--font-size-sm);
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer__company strong {
  display: block;
  font-size: var(--font-size-lg);
  color: var(--color-white);
  margin-bottom: 12px;
}
.footer__company p {
  margin-bottom: 4px;
  line-height: 1.8;
}
.footer__contact p {
  margin-bottom: 4px;
  line-height: 1.8;
}
.footer__contact a {
  color: var(--color-primary);
}
.footer__contact a:hover {
  color: var(--color-primary-light);
}
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}

/* ===== Floating Buttons ===== */
.floating {
  position: fixed;
  right: 20px;
  bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 900;
}
.floating__btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition);
  text-decoration: none;
}
.floating__btn:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-2px);
}
.floating__btn--top {
  background: var(--color-bg-dark);
}
.floating__btn--top:hover {
  background: #333;
}

/* ===== Contact Hero Image ===== */
.contact-hero-img {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 32px;
}
.contact-hero-img img {
  width: 100%;
  aspect-ratio: 16 / 6;
  object-fit: cover;
}
.contact-hero-img__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(0,0,0,0.6), rgba(0,0,0,0.1));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 40px;
  color: var(--color-white);
}
.contact-hero-img__overlay h2 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: 8px;
}
.contact-hero-img__overlay p {
  font-size: var(--font-size-lg);
  opacity: 0.85;
}

/* ===== Board Post Detail Modal ===== */
.post-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.post-modal.is-open {
  display: flex;
}
.post-modal__content {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  max-width: 640px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: 40px;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.post-modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  background: var(--color-bg-alt);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.post-modal__close:hover {
  background: var(--color-border);
}
.post-modal__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: 12px;
}
.post-modal__meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}
.post-modal__body {
  font-size: var(--font-size-base);
  line-height: 1.9;
  color: var(--color-text-light);
}

/* ===== Utility Classes ===== */
.text-center { text-align: center; }
.text-line { line-height: 2; }
.text-line-sm { line-height: 1.9; }
.mb-16 { margin-bottom: 16px; }
.mb-20 { margin-bottom: 20px; }
.mb-24 { margin-bottom: 24px; }
.mb-40 { margin-bottom: 40px; }
.container--narrow { max-width: 900px; }

.list-styled {
  padding-left: 20px;
  line-height: 1.9;
  color: var(--color-text-light);
}
.list-styled li { list-style: disc; }

.table-spec {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
  margin-bottom: 24px;
}
.table-spec td {
  padding: 8px;
  vertical-align: top;
}
.table-spec tr {
  border-bottom: 1px solid var(--color-border);
}
.table-spec tr:last-child {
  border-bottom: none;
}
.table-spec__label {
  font-weight: 700;
  white-space: nowrap;
  width: 100px;
}

.table-data {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}
.table-data th {
  padding: 12px;
  text-align: left;
  background: var(--color-primary);
  color: var(--color-white);
}
.table-data td {
  padding: 10px;
}
.table-data tr {
  border-bottom: 1px solid var(--color-border);
}
.table-data tr:last-child {
  border-bottom: none;
}
.table-data td[style] {
  text-align: center;
}

.belt-header {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 24px;
}
.belt-header__img {
  width: 180px;
  border-radius: 8px;
  flex-shrink: 0;
}

.section-block {
  margin-bottom: 40px;
}
.section-block--lg {
  margin-bottom: 40px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.tag__icon {
  font-size: 2rem;
}
.tag__body h3 {
  font-weight: 700;
  margin-bottom: 4px;
  font-size: var(--font-size-base);
}
.tag__body p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  text-align: center;
}
.service-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.service-item__icon {
  font-size: 2rem;
}
.service-item h3 {
  font-size: var(--font-size-base);
  font-weight: 500;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
}

.subsection-title {
  margin: 20px 0 10px;
  color: var(--color-primary);
}

.pdf-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.info-box {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.cta-box {
  background: var(--color-bg-dark);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  margin-top: 48px;
}
.cta-box a {
  color: var(--color-white);
}

/* ===== Contact Form ===== */
.inquiry-form {
  max-width: 680px;
  margin: 0 auto;
}
.inquiry-form__group {
  margin-bottom: 20px;
}
.inquiry-form__label {
  display: block;
  font-weight: 700;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  margin-bottom: 6px;
}
.inquiry-form__label .required {
  color: #e53e3e;
  margin-left: 2px;
}
.inquiry-form__input,
.inquiry-form__select,
.inquiry-form__textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  -webkit-appearance: none;
  appearance: none;
}
.inquiry-form__input:focus,
.inquiry-form__select:focus,
.inquiry-form__textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(3, 199, 90, 0.12);
}
.inquiry-form__input::placeholder,
.inquiry-form__textarea::placeholder {
  color: var(--color-text-muted);
}
.inquiry-form__textarea {
  min-height: 140px;
  resize: vertical;
}
.inquiry-form__select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23888' d='M1.41 0L6 4.58 10.59 0 12 1.41l-6 6-6-6z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}
.inquiry-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.inquiry-form__check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  cursor: pointer;
}
.inquiry-form__check input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  cursor: pointer;
}
.inquiry-form__error {
  display: none;
  font-size: 0.8rem;
  color: #e53e3e;
  margin-top: 4px;
}
.inquiry-form__error.is-visible {
  display: block;
}
.inquiry-form__input.has-error,
.inquiry-form__select.has-error,
.inquiry-form__textarea.has-error {
  border-color: #e53e3e;
}
.inquiry-form__submit {
  width: 100%;
  padding: 16px 32px;
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-lg);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  margin-top: 8px;
}
.inquiry-form__submit:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.inquiry-form__submit:disabled {
  background: var(--color-text-muted);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.inquiry-form__success {
  display: none;
  text-align: center;
  padding: 48px 24px;
}
.inquiry-form__success.is-visible {
  display: block;
}
.inquiry-form__success-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}
.inquiry-form__success h3 {
  font-size: var(--font-size-xl);
  margin-bottom: 8px;
  color: var(--color-primary);
}
.inquiry-form__success p {
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ===== FAQ Accordion ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.faq-item.is-open {
  box-shadow: var(--shadow-sm);
}
.faq-item__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px;
  background: var(--color-white);
  border: none;
  cursor: pointer;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-text);
  text-align: left;
  transition: all var(--transition);
}
.faq-item__question:hover {
  color: var(--color-primary);
  background: rgba(3, 199, 90, 0.03);
}
.faq-item.is-open .faq-item__question {
  color: var(--color-primary);
  background: rgba(3, 199, 90, 0.04);
}
.faq-item__arrow {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  transition: transform 0.3s ease;
  color: var(--color-text-muted);
  font-size: 0.7rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.faq-item.is-open .faq-item__arrow {
  transform: rotate(180deg);
  color: var(--color-primary);
}
.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}
.faq-item.is-open .faq-item__answer {
  max-height: 600px;
}
.faq-item__answer-inner {
  padding: 0 20px 20px;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.9;
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
  :root {
    --header-height: 64px;
  }
  .nav__link { font-size: 0.75rem; padding: 6px 8px; }
  .nav__list { gap: 0; }

  .hero__title { font-size: var(--font-size-3xl); }
  .hero { min-height: 70vh; }
  .section { padding: 56px 0; }

  .board-table__header,
  .board-table__row {
    grid-template-columns: 60px 1fr 80px 80px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .contact-hero-img__overlay {
    padding: 24px;
  }
  .contact-hero-img__overlay h2 {
    font-size: var(--font-size-xl);
  }

  .inquiry-form__row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  :root {
    --font-size-3xl: 1.5rem;
    --font-size-4xl: 1.75rem;
  }

  .container { padding: 0 16px; }
  .section { padding: 40px 0; }

  .hero {
    min-height: 60vh;
    margin-top: var(--header-height);
  }
  .hero__content { padding: 16px; }
  .hero__title { font-size: var(--font-size-2xl); }
  .hero__desc { font-size: var(--font-size-sm); margin-bottom: 20px; }
  .hero__cta { padding: 12px 24px; font-size: var(--font-size-sm); }
  .hero__logo { width: 72px; }

  .page-hero {
    padding: 48px 0;
  }
  .page-hero__title {
    font-size: var(--font-size-2xl);
  }

  .card-grid {
    grid-template-columns: 1fr;
  }
  .gallery {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .board-table__header,
  .board-table__row {
    grid-template-columns: 48px 1fr 60px;
  }
  .board-table__cell--date { display: none; }
  .board-table__header .board-table__cell--date { display: none; }

  .contact-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  .btn {
    justify-content: center;
  }

  .company-info {
    grid-template-columns: 1fr;
  }

  .nav { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .nav::-webkit-scrollbar { display: none; }
  .nav__link { font-size: 0.7rem; padding: 5px 6px; white-space: nowrap; }
  .logo span { display: none; }
  .floating {
    right: 12px;
    bottom: 12px;
  }
  .floating__btn {
    width: 44px;
    height: 44px;
    font-size: 1.1rem;
  }

  .contact-hero-img img {
    aspect-ratio: 16 / 8;
  }
  .contact-hero-img__overlay {
    padding: 16px;
  }
  .contact-hero-img__overlay h2 {
    font-size: var(--font-size-lg);
  }
  .contact-hero-img__overlay p {
    font-size: var(--font-size-sm);
  }

  .post-modal__content {
    padding: 24px;
  }

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

/* ===== Blog Feed ===== */
.blog-feed__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.blog-feed__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  color: var(--color-text);
}
.blog-feed__item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
  color: var(--color-text);
}
.blog-feed__title {
  font-weight: 700;
  font-size: var(--font-size-base);
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  word-break: keep-all;
}
@media (max-width: 640px) {
  .blog-feed__title {
    white-space: normal;
    text-overflow: clip;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
  }
}
.blog-feed__date {
  flex-shrink: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}
@media (max-width: 640px) {
  .blog-feed__item {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}