.f1-page {
  --f1-bg: #1f2022;
  --f1-soft: rgba(255, 255, 255, 0.78);
  --f1-faint: rgba(255, 255, 255, 0.6);
  color: #fff;
  background: var(--f1-bg);
  font-family: "Noto Sans KR", sans-serif;
  overflow-x: clip;
}

.f1-page * {
  box-sizing: border-box;
}

.f1-container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}


.f1-section {
  padding: 60px 0;
}

.f1-section--dark {
  background: var(--f1-bg);
}

.f1-title {
  margin: 0;
  text-align: center;
  font-size: clamp(25px, 3.2vw, 50px);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.f1-copy {
  margin: 18px 0 0;
  font-size: clamp(14px, 1.2vw, 18px);
  line-height: 1.8;
  color: var(--f1-soft);
}

.f1-copy--center {
  text-align: center;
}

.f1-hero {
  position: relative;
  width: 100%;
  min-height: 0;
  aspect-ratio: 1920 / 1166;
  background: url("/img/sub/face/sub_01/01_top_bg.jpg") center top / cover no-repeat;
}

.f1-hero__inner {
  position: relative;
  min-height: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  padding-top: clamp(34px, 5.2vw, 70px);
}

.f1-hero__eyebrow {
  margin: 0;
  font-size: clamp(22px, 2.6vw, 40px);
  color: rgba(255, 255, 255, 0.6);
      letter-spacing: 0.01em;
}

.f1-hero__title {
  margin: 12px 0 0;
  font-size: clamp(30px, 4.8vw, 64px);
  font-weight: 100;
}

.f1-hero__desc {
  margin: 0 0 0;
  font-size: clamp(15px, 2vw, 30px);
  color: #fff;
}

.f1-hero__bottom {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: clamp(22px, 4vw, 46px);
  width: 100%;
  max-width: 520px;
  padding: 0 24px;
  font-size: clamp(13px, 1.4vw, 18px);
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.85);
  text-shadow: 0 6px 24px rgba(0, 0, 0, 0.45);
  text-align: center;
}

@media (max-width: 720px) {
  .f1-hero__bottom {
    margin-top: 12px;
  }
}

.f1-cert__grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 26px;
  justify-items: center;
}

.f1-cert__item {
  text-align: center;
  font-size: 15px;
  color: #fff;
}

.f1-cert__thumb {
  width: min(220px, 100%);
  aspect-ratio: 4 / 3;
  border-radius: 14px;
  background: #fff;
  display: grid;
  place-items: center;
  margin: 0 auto 16px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
}

.f1-cert__thumb img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}

.f1-cert__label {
  margin: 0;
  display: grid;
  gap: 6px;
  justify-items: center;
}

.f1-cert__num {
  display: inline-block;
  font-weight: 700;
  font-size: 20px;
  border-bottom: 2px solid rgba(255, 255, 255, 0.7);
}

.f1-cert__text {
  font-weight: 600;
}

.f1-note {
  margin: 20px 0 0;
  text-align: center;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.75);
}

.f1-steps__list {
  margin-top: 48px;
  display: grid;
  gap: 28px;
  padding:0 70px;
}

.f1-step {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 36px;
  align-items: center;
}

.f1-step__text h4 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.f1-step__text h4 span {
  display: inline-block;
  margin-bottom: 6px;
  border-bottom: 2px solid rgba(255, 255, 255, 0.7);
  font-size: 20px;
}

.f1-step__text p {
  margin: 0 0 0;
  font-size: 14px;
  color: #fff;
  line-height: 1.7;
}

.f1-step__thumb {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 16px;
  overflow: hidden;
  background: #f2f2f2;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.28);
}

.f1-step__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.f1-faq__grid {
  margin-top: 36px;
  display: grid;
  grid-template-columns: 1fr 250px;
  align-items: center;
  padding: 0px 90px;
}

.f1-faq__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
  font-size: 14px;
  align-self: start;
  color: rgba(255, 255, 255, 0.85);
}

.f1-faq__list li {
  position: relative;
  padding-left: 20px;
}

.f1-faq__list li > strong {
  display: block;
  font-size: 15px;
  margin-bottom: 6px;
}

.f1-faq__list li p {
  margin: 0;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
}

.f1-faq__list li p + p {
  margin-top: 6px;
}

.f1-faq__thumb {
  display: grid;
  place-items: center;
  align-self: center;
}

.f1-faq__thumb img {
  width: 100%;
  height: auto;
  display: block;
}

.f1-precautions {
  background:
    linear-gradient(0deg, rgba(20, 20, 20, 0.82), rgba(20, 20, 20, 0.82)),
    url("/img/sub/default/bg1.jpg") center center / cover no-repeat,
    #1b1b1b;
  text-align: center;
}
.f1-precautions__intro{
  background-color: rgba(0, 0, 0, 0.6);
  font-weight: 200;
  padding: 50px 0;
}
.f1-precautions__intro p {
  margin: 0 auto;
  max-width: 620px;
  font-size: 16px;
  line-height: 2;
  color: rgba(255, 255, 255, 0.7);
}

.f1-precautions__intro p strong{
  font-weight: 500;
  color: #fff;
}

.f1-precautions__body {
  margin-top: 56px;
  text-align: left;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}

.f1-precautions__body h3 {
  margin: 0;
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(22px, 2.4vw, 36px);
  font-weight: 400;
}

.f1-precautions__line {
  display: block;
  width: 2px;
  height: 28px;
  background: rgba(255, 255, 255, 0.5);
  margin: 16px auto 22px;
}

.f1-precautions__body ul {
  margin: 0 auto;
  padding: 0;
  max-width: 400px;
  display: grid;
  gap: 18px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 300;
}

.f1-outro {
  padding: 140px 0;
  text-align: center;
  background: url("/img/sub/signature_02/sig_11.jpg") center center / cover no-repeat;
  min-height: 500px;
  display: flex;
  align-items: flex-end;
}

.f1-outro__eyebrow {
  margin: 0;
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(20px, 2.4vw, 36px);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);
}

.f1-outro__title {
  margin: 12px 0 0;
  font-size: clamp(26px, 3vw, 44px);
  font-weight: 300;
}

.f1-outro__title strong {
  font-weight: 700;
}

@media (max-width: 900px) {
  .f1-step {
    grid-template-columns: 1fr;
  }

  .f1-step__thumb {
    width: 100%;
    aspect-ratio: 16 / 10;
  }

  .f1-faq__grid {
    padding: 0px 0;
  }
}

@media (max-width: 720px) {
  .f1-section {
    padding: 30px 0;
  }

  .f1-hero__device {
    width: min(280px, 70vw);
  }

  .f1-cert__grid {
    grid-template-columns: 1fr;
    gap: 10px;
    max-width: 460px;
    margin-left: auto;
    margin-right: auto;
  }

  .f1-cert__item {
    display: grid;
    grid-template-columns: 100px minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    text-align: left;
  }

  .f1-cert__thumb {
    width: 100px;
    aspect-ratio: 1 / 1;
    margin: 0;
  }

  .f1-cert__label {
    justify-items: start;
    gap: 4px;
  }

  .f1-cert__num {
    font-size: 16px;
  }

  .f1-outro {
    padding: 100px 0;
  }
}
@media (max-width: 570px) {
  .f1-faq__grid {
    grid-template-columns: 1fr;
  }
  .f1-faq__thumb img{
    width: 30%;
  }
}

.f1-hero__eyebrow {
  margin: 0;
  font-size: clamp(25px, 2.5vw, 58px);
  font-weight: 400;
  line-height: 1;
}

.f1-hero__title {
  margin: 12px 0 0;
  font-size: clamp(40px, 4.8vw, 74px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.02em;
}
/* Hero scale sync with signature_02/03 */
.f1-hero {
  min-height: clamp(560px, 62vw, 780px);
}
.f1-hero__eyebrow {
  font-size: clamp(24px, 2vw, 62px);
  line-height: 1.05;
}
.f1-hero__title {
  font-size: clamp(42px, 6vw, 70px);
  line-height: 1.04;
  
  margin: clamp(40px, 6vw, 82px) 0 0;
}
.f1-hero__desc {
  font-size: clamp(20px, 2vw, 25px);
  line-height: 1.48;
  margin: clamp(18px, 1.8vw, 26px) 0 0;
}

@media (max-width: 1024px) {
  .f1-hero {
    min-height: 650px;
  }
  .f1-hero__title {
    font-size: clamp(40px, 8vw, 74px);
  }
  .f1-hero__desc {
    font-size: clamp(18px, 2.8vw, 30px);
  }
}

@media (max-width: 767px) {
  .f1-hero {
    min-height: 560px;
  }
  .f1-hero__eyebrow {
    font-size: clamp(18px, 5.2vw, 26px);
  }
  .f1-hero__title {
    font-size: clamp(34px, 10vw, 52px);
    line-height: 1.08;
  }
  .f1-hero__desc {
    font-size: clamp(16px, 4.5vw, 22px);
  }
  .f1-faq__thumb{
    display: none;
  }
  .f1-precautions__body{
    margin-top:30px;
  }
}

@media (max-width: 520px) {
  .f1-hero {
    min-height: 520px;
  }

  .f1-cert__item {
    grid-template-columns: 86px minmax(0, 1fr);
    gap: 10px;
  }

  .f1-cert__thumb {
    width: 86px;
  }

  .f1-cert__num {
    font-size: 14px;
  }

  .f1-hero__desc {
    font-size: 15px;
    line-height: 1.7;
  }
  .f1-steps__list{
  padding:0 24px;
  }
  .f1-copy--center span{
    display: block;
  }
}
/* Non-hero typography sync */
.f1-page .f1-section :is(
  .f1-title,
  h3,
  h4,
  .f1-faq__list li > strong,
  .f1-step__text h4
) {
  font-size: 25px;
}

.f1-page .f1-section :is(
  .f1-copy,
  .f1-note,
  p,
  li,
  .f1-step__text p,
  .f1-faq__list
) {
  font-size: 20px;
}

@media (max-width: 767px) {
  .f1-page .f1-section :is(
    .f1-title,
    h3,
    h4,
    .f1-faq__list li > strong,
    .f1-step__text h4
  ) {
    font-size: 15px;
  }

  .f1-page .f1-section :is(
    .f1-copy,
    .f1-note,
    p,
    li,
    .f1-step__text p,
    .f1-faq__list
  ) {
    font-size: 10px;
  }
}