@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@100..900&display=swap");

/* ========================================
   기본 리셋 및 레이아웃
======================================== */
* {
  margin: 0;
  padding: 0;
  list-style: none;
  box-sizing: border-box;
  font-family: "Noto Sans KR", sans-serif;
  text-decoration: none;
  letter-spacing: -1px;
}

html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: #333;
  font-family: "Noto Sans KR", sans-serif;
}

a {
  color: inherit;
}

.cont {
  width: 1320px;
  max-width: 100%;
  margin: 0 auto;
  padding: 0 20px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-wrapper {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  width: 100%;
}

.main-content {
  flex: 1;
}

/* ========================================
   헤더 스타일
======================================== */
header {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  background-color: #fff;
  padding: 20px 0 15px;
  z-index: 1500;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

header .cont {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header h1 {
  font-size: 1rem;
  color: #3617ce;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  background-color: #fff;
  padding: 10px 20px;
  border-radius: 30px;
  transition: all 0.3s;
}

header h1:hover {
  background-color: #f0f0f0;
  transform: scale(1.02);
}

header h1 .logo-img {
  width: 35px;
  height: 35px;
  object-fit: contain;
}

header h1 span {
  display: inline-block;
  font-weight: 600;
}

nav ul {
  display: flex;
  align-items: center;
  justify-content: center;
}

nav li {
  margin: 0 30px;
}

nav a {
  color: #3617ce;
  font-size: 1.2rem;
  font-weight: 600;
  transition: 0.2s;
}

nav a:hover {
  opacity: 0.6;
}

.telbtn {
  display: inline-block;
  padding: 10px 20px;
  background: linear-gradient(135deg, #ffd700 0%, #ffa500 100%);
  color: #fff;
  border-radius: 30px;
  font-weight: 700;
  transition: 0.3s;
  box-shadow: 0 3px 10px rgba(255, 165, 0, 0.3);
}

.telbtn:hover {
  background: linear-gradient(135deg, #ffc700 0%, #ff9500 100%);
  transform: scale(1.05);
  box-shadow: 0 5px 15px rgba(255, 165, 0, 0.5);
}

/* ========================================
   히어로 섹션 - 데스크탑
======================================== */
.hero {
  background: url("/img/main_b_m-001.png") no-repeat center center;
  background-size: 100% auto;
  min-height: 500px;
  height: auto;
  display: flex;
  align-items: center;
  padding: 50px 0;
  position: relative;
  background-color: #3617ce;
  margin-top: 70px;
}

.hero-content-container {
  max-width: 700px;
  margin: 0 0 0 3%;
  padding: 40px;
  text-align: left;
}

.hero-content {
  color: #fff;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
  text-align: left;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  text-align: left;
  color: #fff;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  text-align: left;
  color: #fff;
}

.hero-button {
  display: inline-block;
  padding: 15px 30px;
  background-color: #fff;
  color: #3617ce;
  border-radius: 30px;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all 0.3s;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.hero-button:hover {
  background-color: #f0f0f0;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.hero-button i {
  margin-right: 8px;
}

/* ========================================
   베스트 추천상품 배너
======================================== */
.best-banner {
  text-align: center;
  margin: 60px auto 30px;
  padding: 0 20px;
}

.best-banner img {
  max-width: 400px;
  width: 100%;
  height: auto;
  display: inline-block;
}

/* ========================================
   BTV POP 상품 소개
======================================== */
.product-intro {
  background: linear-gradient(to bottom, #f8f9ff 0%, #ffffff 100%);
  padding: 50px 20px;
  margin: 0 auto;
}

.intro-container {
  max-width: 1000px;
  margin: 0 auto;
}

.intro-title {
  text-align: center;
  font-size: 2rem;
  font-weight: 800;
  color: #1e40af;
  margin-bottom: 10px;
  line-height: 1.4;
}

.intro-title .highlight {
  color: #3617ce;
  position: relative;
}

.intro-subtitle {
  text-align: center;
  font-size: 1.1rem;
  color: #6b7280;
  margin-bottom: 40px;
  font-weight: 500;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.feature-card {
  background: #ffffff;
  border: 2px solid #e5e7eb;
  border-radius: 16px;
  padding: 30px 20px;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
  border-color: #3617ce;
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(54, 23, 206, 0.15);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 15px;
}

.feature-card h4 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #1e40af;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.95rem;
  color: #6b7280;
  line-height: 1.6;
}

/* ========================================
   BTV POP 비교 이미지
======================================== */
.btvpop-comparison {
  max-width: 1000px;
  margin: 30px auto;
  padding: 0 20px;
  background: transparent;
}

.comparison-container {
  width: 100%;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.comparison-image {
  width: 100%;
  max-width: 900px;
  height: auto;
  border-radius: 0;
  box-shadow: none;
  display: block;
  margin: 0 auto;
}

/* ========================================
   스크롤 화살표 애니메이션
======================================== */
.scroll-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 40px auto 20px;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.scroll-arrow:hover {
  transform: translateY(-5px);
}

.scroll-arrow span {
  font-size: 1.1rem;
  font-weight: 700;
  color: #1e40af;
  margin-bottom: 10px;
}

.arrow-down {
  width: 30px;
  height: 50px;
  position: relative;
}

.arrow-down span {
  position: absolute;
  left: 50%;
  width: 28px;
  height: 28px;
  margin-left: -14px;
  border-left: 5px solid #1e40af;
  border-bottom: 5px solid #1e40af;
  transform: rotate(-45deg);
  animation: arrowBounce 2s infinite;
  box-sizing: border-box;
}

.arrow-down span:nth-child(1) {
  top: 0;
  animation-delay: 0s;
}

.arrow-down span:nth-child(2) {
  top: 10px;
  animation-delay: 0.15s;
}

.arrow-down span:nth-child(3) {
  top: 20px;
  animation-delay: 0.3s;
}

@keyframes arrowBounce {
  0% {
    opacity: 0;
    transform: rotate(-45deg) translate(-10px, -10px);
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: rotate(-45deg) translate(10px, 10px);
  }
}

/* ========================================
   공통 요금제 레이아웃
======================================== */
.calc-container {
  max-width: 900px;
  margin: 50px auto;
  padding: 40px 30px;
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto,
    "Noto Sans KR", Arial;
  position: relative;
  overflow: visible;
}

.calc-container h2 {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 800;
  color: #1e40af;
  margin-bottom: 30px;
  letter-spacing: -0.5px;
}

.calc-container h2 p {
  font-size: 1rem;
  font-weight: 600;
  color: #6b7280;
  margin-top: 10px;
}

/* 그리드 레이아웃 */
.calc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 30px;
  position: relative;
  overflow: visible;
}

/* 필드 공통 스타일 - 모던 디자인 */
.calc-field {
  background: #ffffff;
  border: 2px solid #e5e7eb;
  border-radius: 12px;
  padding: 18px 16px;
  transition: all 0.3s ease;
  position: relative;
  z-index: 1;
  overflow: visible;
}

.calc-field.has-active-dropdown {
  z-index: 9998 !important;
  overflow: visible !important;
}

.calc-field label {
  font-size: 0.9rem;
  font-weight: 700;
  color: #6b7280;
  display: block;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

/* 커스텀 SELECT 박스 */
.calc-field select {
  width: 100%;
  padding: 12px 40px 12px 12px;
  border: 2px solid #e5e7eb;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  color: #1f2937;
  background: #fff;
  cursor: pointer;
  transition: all 0.3s ease;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='16' height='10' viewBox='0 0 16 10' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M2 2L8 8L14 2' stroke='%233617ce' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
}

.calc-field select:focus {
  outline: none;
  border-color: #3617ce;
  box-shadow: 0 0 0 3px rgba(54, 23, 206, 0.1);
}

.calc-field select:disabled {
  background: #f3f4f6;
  color: #9ca3af;
  cursor: not-allowed;
  border-color: #e5e7eb;
  opacity: 0.6;
}

/* ========================================
   커스텀 체크박스 스타일 (모던 심플)
======================================== */
.calc-checkbox {
  display: flex;
  align-items: center;
  background: #ffffff;
  border: 2px solid #e5e7eb;
  border-radius: 12px;
  padding: 18px 16px;
  transition: all 0.3s ease;
}

.calc-checkbox.disabled {
  opacity: 0.5;
  pointer-events: none;
  background: #f3f4f6;
  transform: none !important;
}

.calc-checkbox label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  color: #1f2937;
  cursor: pointer;
  position: relative;
  user-select: none;
  width: 100%;
  font-size: 0.95rem;
}

/* 기본 체크박스 숨기기 */
.calc-checkbox input[type="checkbox"] {
  width: 24px;
  height: 24px;
  margin: 0;
  cursor: pointer;
  position: relative;
  appearance: none;
  -webkit-appearance: none;
  border: 2px solid #d1d5db;
  border-radius: 6px;
  background: #fff;
  transition: all 0.3s ease;
  flex-shrink: 0;
  z-index: 5;
}

.calc-checkbox input[type="checkbox"]:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

/* 체크박스 체크됨 - 배경 */
.calc-checkbox input[type="checkbox"]:checked {
  background: #3617ce;
  border-color: #3617ce;
}

/* 체크 마크 */
.calc-checkbox input[type="checkbox"]:checked::after {
  content: "✓";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 16px;
  font-weight: bold;
  animation: checkmarkAppear 0.3s ease;
  z-index: 10;
  pointer-events: none;
}

@keyframes checkmarkAppear {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0);
  }
  100% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}

/* ========================================
   커스텀 라디오 버튼 스타일 (모던 심플)
======================================== */
.calc-settop {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  background: #ffffff;
  border: 2px solid #e5e7eb;
  border-radius: 12px;
  padding: 18px 16px;
  transition: all 0.3s ease;
}

.calc-settop.disabled {
  opacity: 0.5;
  pointer-events: none;
  background: #f3f4f6;
  transform: none !important;
}

.calc-settop > label:first-child {
  font-size: 0.9rem;
  font-weight: 700;
  color: #6b7280;
  display: block;
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

.settop-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.settop-options label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  color: #1f2937;
  cursor: pointer;
  font-size: 0.95rem;
  position: relative;
  user-select: none;
  transition: all 0.2s ease;
}

.settop-options label:hover {
  color: #3617ce;
}

/* 기본 라디오 버튼 숨기고 커스텀 */
.settop-options input[type="radio"] {
  width: 22px;
  height: 22px;
  margin: 0;
  cursor: pointer;
  position: relative;
  appearance: none;
  -webkit-appearance: none;
  border: 2px solid #d1d5db;
  border-radius: 50%;
  background: #fff;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.settop-options input[type="radio"]:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

/* 라디오 호버 */
.settop-options input[type="radio"]:hover:not(:disabled) {
  border-color: #3617ce;
  background: #f0f0ff;
}

/* 라디오 선택됨 - 외부 원 */
.settop-options input[type="radio"]:checked {
  border-color: #3617ce;
  background: #fff;
}

/* 라디오 선택됨 - 내부 원 */
.settop-options input[type="radio"]:checked::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #3617ce;
  transform: translate(-50%, -50%);
  animation: radioAppear 0.3s ease;
}

@keyframes radioAppear {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0);
  }
  100% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}

/* ========================================
   커스텀 드롭다운 스타일
======================================== */
.custom-select-wrapper {
  position: relative;
  width: 100%;
  z-index: 1;
}

.custom-select-wrapper.active {
  z-index: 9999 !important;
}

.custom-select-wrapper select {
  display: none;
}

.custom-select-trigger {
  width: 100%;
  padding: 12px 40px 12px 12px;
  border: 2px solid #e5e7eb;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  color: #1f2937;
  background: #fff;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  position: relative;
  z-index: 1;
}

.custom-select-trigger.active {
  border-color: #3617ce;
  box-shadow: 0 0 0 3px rgba(54, 23, 206, 0.1);
  z-index: 10000 !important;
}

.custom-select-arrow {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 10px;
  pointer-events: none;
  transition: transform 0.3s ease;
}

.custom-select-arrow svg {
  width: 100%;
  height: 100%;
}

.custom-select-trigger.active .custom-select-arrow {
  transform: translateY(-50%) rotate(180deg);
}

.custom-select-options {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: #fff;
  border: 2px solid #3617ce;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 10001 !important;
}

.custom-select-options.active {
  max-height: 300px;
  opacity: 1;
  overflow-y: auto;
}

.custom-select-option {
  padding: 14px 16px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.95rem;
  font-weight: 500;
  color: #374151;
  border-bottom: 1px solid #f3f4f6;
}

.custom-select-option:last-child {
  border-bottom: none;
}

.custom-select-option.selected {
  background: #ede9fe;
  color: #3617ce;
  font-weight: 700;
}

.custom-select-option.selected::before {
  content: "✓ ";
  margin-right: 6px;
  font-weight: bold;
}

/* 스크롤바 스타일 */
.custom-select-options::-webkit-scrollbar {
  width: 6px;
}

.custom-select-options::-webkit-scrollbar-track {
  background: #f3f4f6;
  border-radius: 10px;
}

.custom-select-options::-webkit-scrollbar-thumb {
  background: #3617ce;
  border-radius: 10px;
}

.custom-select-options::-webkit-scrollbar-thumb:hover {
  background: #2b10b0;
}

/* 요금 출력 박스 */
.calc-result {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: stretch;
  margin: 35px auto 20px;
  width: 96%;
  max-width: 900px;
  min-height: 240px;
  background: #1e40af;
  border-radius: 16px;
  padding: 25px 35px;
  box-shadow: 0 8px 24px rgba(30, 64, 175, 0.25);
  box-sizing: border-box;
}

.calc-result .price-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.calc-result .price-item:last-child {
  border-bottom: none;
}

.calc-result .price-label {
  font-size: 1.1rem;
  font-weight: 600;
  color: #ffffff;
}

.calc-result .price-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: #ffffff;
}

/* 셋톱박스, 출동비는 작은 폰트 */
.calc-result .price-item.small .price-label {
  font-size: 0.95rem;
}

.calc-result .price-item.small .price-value {
  font-size: 1.1rem;
}

/* 사은품 강조 (노란색) */
.calc-result .price-item.gift .price-label {
  font-size: 1.05rem;
  font-weight: 700;
}

.calc-result .price-item.gift .price-value {
  color: #fbbf24;
  font-weight: 700;
  font-size: 1.2rem;
}

/* 최종 납부요금 강조 */
.calc-result .price-item.final-price {
  margin-top: 15px;
  padding-top: 20px;
  border-top: 2px solid rgba(255, 215, 0, 0.3);
  border-bottom: none;
}

.calc-result .price-item.final-price .price-label {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffd700;
}

.calc-result .price-item.final-price .price-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: #ffd700;
}

/* CTA 버튼 */
.calc-cta {
  margin-top: 15px;
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-main,
.btn-sub {
  padding: 13px 26px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  display: inline-block;
  transition: transform 0.2s;
}

.btn-main {
  background: #fee500;
  color: #000000;
}

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

.btn-sub {
  background: #111827;
  color: #fff;
}

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

/* ========================================
   BTV Cable 소개
======================================== */
.btv-cable-section {
  max-width: 900px;
  margin: 50px auto;
  padding: 40px 20px;
  background: transparent; /* #fff → transparent */
  border-radius: 0; /* 14px → 0 */
  box-shadow: none; /* 그림자 제거 */
}

.cable-container {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.cable-title {
  text-align: center;
  font-size: 1.8rem;
  font-weight: 800;
  color: #1e40af;
  margin-bottom: 10px;
}

.cable-subtitle {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 600;
  color: #6b7280;
  margin-bottom: 40px;
}

.cable-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 30px;
  width: 100%;
}

.cable-image {
  width: 100%;
  max-width: 300px;
  text-align: center;
  margin: 0 auto;
}

.cable-image img {
  width: 100%;
  height: auto;
  border-radius: 0;
  box-shadow: none;
  display: block;
  margin: 0 auto;
}

.cable-info {
  text-align: center;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
}

.cable-product-name {
  font-size: 1.8rem;
  font-weight: 800;
  color: #1e40af;
  margin-bottom: 20px;
  text-align: center;
}

.cable-description {
  font-size: 1.1rem;
  color: #374151;
  line-height: 1.8;
  margin-bottom: 30px;
  text-align: center;
}

.cable-price {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  margin: 0 auto 10px;
  text-align: center;
  width: 100%;
}

.price-label {
  font-size: 1.2rem;
  font-weight: 700;
  color: #6b7280;
  text-align: center;
}

.price-amount {
  font-size: 2.5rem;
  font-weight: 800;
  color: #dc2626;
  text-align: center;
}

.cable-note {
  font-size: 0.95rem;
  color: #9ca3af;
  font-weight: 500;
  text-align: center;
  margin: 0 auto;
}

/* 모바일 반응형 */
@media (max-width: 768px) {
  .btv-cable-section {
    margin: 30px auto;
    padding: 30px 20px;
  }

  .cable-title {
    font-size: 1.5rem;
  }

  .cable-subtitle {
    font-size: 1rem;
    margin-bottom: 30px;
  }

  .cable-content {
    gap: 25px;
  }

  .cable-image {
    max-width: 250px;
  }

  .cable-product-name {
    font-size: 1.5rem;
  }

  .cable-description {
    font-size: 1rem;
  }

  .price-label {
    font-size: 1rem;
  }

  .price-amount {
    font-size: 2rem;
  }

  .cable-note {
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .btv-cable-section {
    padding: 25px 15px;
  }

  .cable-title {
    font-size: 1.3rem;
  }

  .cable-subtitle {
    font-size: 0.95rem;
  }

  .cable-image {
    max-width: 200px;
  }

  .cable-product-name {
    font-size: 1.3rem;
  }

  .cable-description {
    font-size: 0.95rem;
    line-height: 1.6;
  }

  .price-label {
    font-size: 0.95rem;
  }

  .price-amount {
    font-size: 1.8rem;
  }
}

/* ========================================
   요즘가족결합 아코디언
======================================== */
.accordion-section {
  max-width: 900px;
  margin: 30px auto;
  padding: 0 20px;
}

.accordion-container {
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  overflow: hidden;
}

.accordion-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  background: #1e40af;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.accordion-header:hover {
  background: #1e3a8a;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(30, 64, 175, 0.3);
}

.accordion-header:active {
  transform: translateY(0);
}

.accordion-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.5px;
}

.accordion-icon {
  font-size: 1.2rem;
  color: #ffffff;
  transition: transform 0.3s ease;
}

.accordion-header.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
  background: #f9fafb;
}

.accordion-content.active {
  max-height: 2000px;
  transition: max-height 0.5s ease-in;
}

.accordion-body {
  padding: 25px;
}

.yoga-image {
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  display: block;
}

/* ========================================
   푸터 스타일
======================================== */
.suwon-footer {
  background-color: #2c3e50;
  color: #fff;
  padding: 50px 0 30px;
  margin-top: auto;
  flex-shrink: 0;
  flex-grow: 0;
  width: 100%;
  position: relative;
  clear: both;
}

.suwon-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.suwon-footer-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
}

.suwon-footer-col h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: #fff;
  font-weight: 600;
}

.suwon-footer-links {
  list-style: none;
  padding: 0;
}

.suwon-footer-links li {
  margin-bottom: 0.5rem;
}

.suwon-footer-links a {
  color: #bbb;
  transition: 0.3s;
  font-size: 0.95rem;
}

.suwon-footer-links a:hover {
  color: #fff;
  padding-left: 5px;
}

/* ========================================
   모바일 플로팅 버튼
======================================== */
.mobile-floating-buttons {
  position: fixed;
  right: 20px;
  bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

@media (max-width: 768px) {
  .mobile-floating-buttons {
    opacity: 1;
    visibility: visible;
  }
}

.floating-btn {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: white;
  font-size: 1.2rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.floating-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.floating-btn span {
  font-size: 0.7rem;
  margin-top: 2px;
  text-align: center;
  line-height: 1;
}

.floating-btn i {
  font-size: 1.1rem;
  margin-bottom: 1px;
}

/* 버튼별 색상 */
.call-btn {
  background: linear-gradient(135deg, #4caf50 0%, #45a049 100%);
  animation: pulse-green 2s infinite;
}

.as-btn {
  background: linear-gradient(135deg, #ff0000 0%, #cc0000 100%);
  animation: pulse-red 2s infinite;
}

.kakao-btn {
  background: linear-gradient(135deg, #fee500 0%, #f5d800 100%);
  color: #3c1e1e;
}

.top-btn {
  background: linear-gradient(135deg, #6c5ce7 0%, #5f4def 100%);
}

@keyframes pulse-green {
  0% {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15), 0 0 0 0 rgba(76, 175, 80, 0.7);
  }
  70% {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15), 0 0 0 10px rgba(76, 175, 80, 0);
  }
  100% {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15), 0 0 0 0 rgba(76, 175, 80, 0);
  }
}

@keyframes pulse-red {
  0% {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15), 0 0 0 0 rgba(255, 0, 0, 0.7);
  }
  70% {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15), 0 0 0 10px rgba(255, 0, 0, 0);
  }
  100% {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15), 0 0 0 0 rgba(255, 0, 0, 0);
  }
}

/* ========================================
   모바일 반응형
======================================== */
@media (max-width: 768px) {
  /* 헤더 */
  header {
    padding: 15px 0;
  }

  header .cont {
    flex-wrap: wrap;
  }

  header h1 {
    font-size: 0.85rem;
    padding: 8px 15px;
  }

  header h1 .logo-img {
    width: 28px;
    height: 28px;
  }

  nav {
    order: 3;
    width: 100%;
    margin-top: 10px;
  }

  nav ul {
    justify-content: space-around;
  }

  nav li {
    margin: 0 10px;
  }

  nav a {
    font-size: 0.9rem;
  }

  .telbtn {
    padding: 8px 15px;
    font-size: 0.85rem;
  }

  /* 히어로 섹션 */
  .hero {
    background: url("/img/main_b_m-001.png") no-repeat center center;
    background-size: 100% 100%;
    min-height: 350px;
    max-height: 450px;
    margin-top: 80px;
    padding: 30px 0;
  }

  .hero-content-container {
    margin: 0;
    padding: 20px;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .hero p {
    font-size: 0.95rem;
  }

  .hero-button {
    padding: 10px 20px;
    font-size: 0.9rem;
  }

  /* 베스트 배너 */
  .best-banner {
    margin: 40px auto 20px;
  }

  .best-banner img {
    max-width: 300px;
  }

  /* BTV POP 소개 */
  .product-intro {
    padding: 40px 15px;
  }

  .intro-title {
    font-size: 1.5rem;
  }

  .intro-subtitle {
    font-size: 1rem;
    margin-bottom: 30px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }

  .feature-card {
    padding: 25px 15px;
  }

  .feature-icon {
    font-size: 2.5rem;
  }

  .feature-card h4 {
    font-size: 1.1rem;
  }

  .feature-card p {
    font-size: 0.9rem;
  }

  /* 비교 이미지 */
  .btvpop-comparison {
    margin: 20px auto;
    padding: 0 15px;
  }

  /* 화살표 */
  .scroll-arrow {
    margin: 30px auto 15px;
  }

  .scroll-arrow span {
    font-size: 1rem;
  }

  .arrow-down {
    width: 24px;
    height: 40px;
  }

  .arrow-down span {
    width: 24px;
    height: 24px;
    margin-left: -12px;
    border-left: 4px solid #1e40af;
    border-bottom: 4px solid #1e40af;
  }

  .arrow-down span:nth-child(2) {
    top: 8px;
  }

  .arrow-down span:nth-child(3) {
    top: 16px;
  }

  /* 요금 계산기 */
  .calc-container {
    padding: 25px 20px;
  }

  .calc-container h2 {
    font-size: 1.3rem;
  }

  .calc-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .calc-field {
    width: 100%;
    padding: 12px 10px;
  }

  .calc-result {
    width: 95%;
    min-height: 220px;
    padding: 20px 25px;
  }

  .calc-result .price-label {
    font-size: 1rem;
  }

  .calc-result .price-value {
    font-size: 1.15rem;
  }

  .calc-result .price-item.small .price-label {
    font-size: 0.9rem;
  }

  .calc-result .price-item.small .price-value {
    font-size: 1rem;
  }

  .calc-result .price-item.gift .price-label {
    font-size: 0.95rem;
  }

  .calc-result .price-item.gift .price-value {
    font-size: 1.1rem;
  }

  .calc-result .price-item.final-price .price-label {
    font-size: 1.1rem;
  }

  .calc-result .price-item.final-price .price-value {
    font-size: 1.35rem;
  }

  .calc-cta {
    flex-direction: column;
    gap: 10px;
  }

  .btn-main,
  .btn-sub {
    width: 100%;
    text-align: center;
    padding: 14px 0;
  }

  /* BTV Cable */
  .btv-cable-section {
    margin: 30px auto;
    padding: 30px 20px;
  }

  .cable-title {
    font-size: 1.5rem;
  }

  .cable-subtitle {
    font-size: 1rem;
    margin-bottom: 30px;
  }

  .cable-content {
    gap: 25px;
  }

  .cable-image {
    max-width: 250px;
  }

  .cable-product-name {
    font-size: 1.5rem;
  }

  .cable-description {
    font-size: 1rem;
  }

  .price-label {
    font-size: 1rem;
  }

  .price-amount {
    font-size: 2rem;
  }

  .cable-note {
    font-size: 0.9rem;
  }

  /* 아코디언 */
  .accordion-section {
    margin: 20px auto;
    padding: 0 15px;
  }

  .accordion-header {
    padding: 16px 20px;
  }

  .accordion-title {
    font-size: 1.1rem;
  }

  .accordion-icon {
    font-size: 1rem;
  }

  .accordion-body {
    padding: 20px 15px;
  }

  /* 푸터 */
  .suwon-footer {
    padding: 40px 0 20px;
  }

  .suwon-footer-container {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .suwon-footer-col h3 {
    font-size: 1.1rem;
  }

  /* 플로팅 버튼 */
  .mobile-floating-buttons {
    right: 10px;
    bottom: 10px;
  }

  .floating-btn {
    width: 65px;
    height: 65px;
  }
}

/* 모바일 - 컴팩트 리스트 형태 (600px 이하) */
@media (max-width: 600px) {
  .intro-title {
    font-size: 1.4rem;
  }

  .intro-subtitle {
    font-size: 0.95rem;
    margin-bottom: 25px;
  }

  /* 그리드를 일렬 리스트로 변경 */
  .features-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-top: 20px;
  }

  /* 박스 스타일 제거하고 리스트 형태로 */
  .feature-card {
    background: transparent;
    border: none;
    border-bottom: 1px solid #e5e7eb;
    border-radius: 0;
    padding: 15px 10px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    text-align: left;
    box-shadow: none;
    transition: none;
  }

  .feature-card:last-child {
    border-bottom: none;
  }

  .feature-card:hover {
    transform: none;
    border-color: #e5e7eb;
    box-shadow: none;
  }

  /* 아이콘을 왼쪽에 작게 */
  .feature-icon {
    font-size: 2rem;
    margin-bottom: 0;
    flex-shrink: 0;
    width: 50px;
    text-align: center;
    padding-top: 3px;
  }

  /* 텍스트 영역을 세로로 배치 */
  .feature-card > div:last-child {
    display: flex;
    flex-direction: column;
    gap: 5px;
  }

  /* 제목 (h4) */
  .feature-card h4 {
    font-size: 1rem;
    font-weight: 700;
    color: #1e40af;
    margin-bottom: 5px;
  }

  /* 설명 (p) */
  .feature-card p {
    font-size: 0.85rem;
    color: #6b7280;
    line-height: 1.5;
    margin: 0;
  }

  .feature-card p br {
    display: inline;
  }
}

/* 작은 모바일 */
@media (max-width: 480px) {
  header h1 {
    font-size: 0.75rem;
    padding: 6px 12px;
  }

  header h1 .logo-img {
    width: 25px;
    height: 25px;
  }

  .hero {
    min-height: 300px;
    max-height: 380px;
  }

  .hero h1 {
    font-size: 1.3rem;
  }

  .hero p {
    font-size: 0.85rem;
  }

  .hero-button {
    padding: 8px 18px;
    font-size: 0.85rem;
  }

  .best-banner {
    margin: 30px auto 15px;
  }

  .best-banner img {
    max-width: 250px;
  }

  .intro-title {
    font-size: 1.3rem;
  }

  .intro-subtitle {
    font-size: 0.9rem;
  }

  .feature-card {
    padding: 12px 5px;
    gap: 12px;
  }

  .feature-icon {
    font-size: 1.8rem;
    width: 45px;
  }

  .feature-card h4 {
    font-size: 0.95rem;
  }

  .feature-card p {
    font-size: 0.8rem;
  }

  .btvpop-comparison {
    margin: 15px auto;
    padding: 0 10px;
  }

  .btv-cable-section {
    padding: 25px 15px;
  }

  .cable-title {
    font-size: 1.3rem;
  }

  .cable-subtitle {
    font-size: 0.95rem;
  }

  .cable-image {
    max-width: 200px;
  }

  .cable-product-name {
    font-size: 1.3rem;
  }

  .cable-description {
    font-size: 0.95rem;
    line-height: 1.6;
  }

  .price-label {
    font-size: 0.95rem;
  }

  .price-amount {
    font-size: 1.8rem;
  }

  .floating-btn {
    width: 60px;
    height: 60px;
  }

  .floating-btn span {
    font-size: 0.65rem;
  }
}

/* 데스크탑 큰 화면 */
@media (min-width: 1201px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1.1rem;
  }
}