:root {
  color-scheme: light;
  --red-700: #a80f17;
  --red-600: #c9161d;
  --red-500: #e52a32;
  --red-100: #fff0f0;
  --ink: #1e2025;
  --muted: #6d727b;
  --line: #e5e6e9;
  --soft: #f7f7f8;
  --white: #fff;
  --shadow: 0 24px 70px rgba(38, 23, 24, .09);
  font-family: Pretendard, "Noto Sans KR", "Malgun Gothic", system-ui, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { min-width: 320px; background: #f5f5f6; scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: linear-gradient(180deg, #fff 0, #f7f7f8 520px, #f4f4f5 100%); min-height: 100vh; }
button, input, select { font: inherit; }
button { -webkit-tap-highlight-color: transparent; }
.skip-link { position: fixed; z-index: 100; top: 9px; left: 9px; padding: 10px 14px; color: #fff; background: #15161a; border-radius: 8px; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }

.app-header { position: sticky; z-index: 5; top: 0; border-bottom: 1px solid rgba(225, 226, 229, .9); background: rgba(255, 255, 255, .92); backdrop-filter: blur(16px); }
.header-inner { width: min(1240px, calc(100% - 48px)); min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 18px; margin: 0 auto; }
.brand-lockup { display: inline-flex; align-items: center; gap: 12px; padding: 0; border: 0; color: inherit; background: transparent; text-decoration: none; text-align: left; cursor: pointer; }
.brand-lockup:focus { outline: none; }
.brand-lockup:focus-visible { outline: 3px solid #f1a4a8; outline-offset: 5px; border-radius: 9px; }
.brand-logo { width: 49px; height: 49px; display: block; object-fit: cover; border-radius: 13px; box-shadow: 0 7px 17px rgba(201, 22, 29, .22); }
.brand-copy { display: flex; flex-direction: column; line-height: 1.14; }
.brand-kicker { color: var(--red-600); font-size: 9px; font-weight: 900; letter-spacing: .14em; }
.brand-copy strong { margin-top: 4px; font-size: 20px; letter-spacing: -.06em; }
.brand-copy > span:last-child { margin-top: 4px; color: #8a8e96; font-size: 11px; }
.brand-lockup.is-active .brand-copy strong { color: var(--red-600); }
.header-nav { display: flex; align-items: stretch; justify-content: center; gap: 8px; flex: 1; min-width: 0; }
.header-tab { display: flex; align-items: center; justify-content: flex-start; gap: 10px; min-width: 145px; min-height: 58px; padding: 10px 17px; border: 1px solid #d5d7dc; border-radius: 11px; color: #777b83; background: #fff; box-shadow: 0 3px 0 rgba(30, 32, 37, .04); text-align: left; cursor: pointer; transition: .18s ease; }
.header-tab:hover { border-color: #efb1b4; color: #7d161c; background: #fffafa; }
.header-tab.is-active { border-color: var(--red-600); color: #fff; background: var(--red-600); box-shadow: 0 8px 17px rgba(201, 22, 29, .2); }
.header-tab-mark { flex: 0 0 auto; width: 31px; height: 31px; display: grid; place-items: center; border: 2px solid #17181b; border-radius: 50%; color: var(--red-600); background: #fff; font-size: 20px; font-weight: 900; line-height: 1; }
.header-tab.is-active .header-tab-mark { border-color: #fff; color: var(--red-600); background: #fff; }
.header-tab strong, .header-tab small { display: block; }
.header-tab strong { font-size: 12px; letter-spacing: -.04em; }
.header-tab small { margin-top: 3px; color: #a1a4ab; font-size: 9px; }
.header-tab.is-active small { color: #ffdfe0; }
.header-status { display: inline-flex; align-items: center; gap: 8px; padding: 8px 12px; border: 1px solid #ececee; border-radius: 999px; color: #666b74; background: #fff; font-size: 11px; font-weight: 750; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #21a66b; box-shadow: 0 0 0 4px #e1f6eb; }

.app-main { width: min(1240px, calc(100% - 48px)); margin: 0 auto; padding: 60px 0 80px; }
.hero { display: grid; grid-template-columns: minmax(0, 1fr) 360px; align-items: end; gap: 58px; margin-bottom: 34px; }
.eyebrow, .section-label { margin: 0 0 11px; color: var(--red-600); font-size: 10px; font-weight: 900; letter-spacing: .13em; }
.hero h1 { margin: 0; color: #17181b; font-size: clamp(34px, 5vw, 57px); line-height: 1.13; letter-spacing: -.09em; }
.hero h1 span { color: var(--red-600); }
.hero-copy > p:last-child { max-width: 670px; margin: 17px 0 0; color: var(--muted); font-size: 15px; line-height: 1.72; word-break: keep-all; }
.privacy-card { display: flex; align-items: center; gap: 12px; min-height: 88px; padding: 16px 17px; border: 1px solid #f3ced0; border-radius: 15px; background: linear-gradient(145deg, #fffafa, #fff3f3); }
.privacy-icon { flex: 0 0 auto; width: 31px; height: 31px; display: grid; place-items: center; border-radius: 10px; color: #fff; background: var(--red-600); font-size: 17px; font-weight: 900; box-shadow: 0 7px 15px rgba(201, 22, 29, .22); }
.privacy-card strong, .privacy-card span { display: block; }
.privacy-card strong { color: #7e1118; font-size: 12px; }
.privacy-card span { margin-top: 5px; color: #9a6f72; font-size: 10px; line-height: 1.45; }

.category-tabs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 9px; margin-bottom: 17px; padding: 7px; border: 1px solid var(--line); border-radius: 16px; background: #fff; box-shadow: 0 7px 20px rgba(34, 29, 30, .04); }
.category-tab { position: relative; display: flex; align-items: center; gap: 11px; min-width: 0; padding: 13px 15px; border: 1px solid transparent; border-radius: 11px; color: #767a83; background: transparent; text-align: left; cursor: pointer; transition: .18s ease; }
.category-tab:hover { background: #fafafa; }
.category-tab.is-active { border-color: #f1bdc0; color: #6d1116; background: var(--red-100); box-shadow: inset 0 0 0 1px rgba(201, 22, 29, .06); }
.category-tab .tab-icon { flex: 0 0 auto; width: 31px; height: 31px; display: grid; place-items: center; border-radius: 9px; color: #797d86; background: #f0f0f2; font-size: 12px; font-weight: 950; }
.category-tab.is-active .tab-icon { color: #fff; background: var(--red-600); box-shadow: 0 5px 12px rgba(201, 22, 29, .2); }
.category-tab strong, .category-tab small { display: block; }
.category-tab strong { font-size: 13px; letter-spacing: -.04em; }
.category-tab small { margin-top: 3px; color: #a0a3aa; font-size: 10px; }
.category-tab.is-active small { color: #a55b5e; }
.category-tab b { margin-left: auto; color: #a9abb0; font-size: 11px; }
.category-tab.is-active b { color: var(--red-600); }

.category-panel { padding: 22px 22px 30px; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow); }
.category-panel.guide-panel { padding: 0; overflow: hidden; }
.guide-hero { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) 350px; gap: 48px; align-items: center; padding: 56px 48px 50px; background: radial-gradient(circle at 88% 18%, rgba(229, 42, 50, .18), transparent 31%), linear-gradient(135deg, #fff 0%, #fff8f8 56%, #fff0f0 100%); }
.guide-copy h1 { margin: 0; color: #17181b; font-size: clamp(46px, 6vw, 76px); line-height: 1.04; letter-spacing: -.1em; }
.guide-copy h1 span { color: var(--red-600); }
.guide-lead { margin: 24px 0 0; color: #5f636b; font-size: 15px; line-height: 1.75; letter-spacing: -.035em; }
.guide-message { margin: 20px 0 0; color: #4d5057; font-size: 14px; line-height: 1.9; letter-spacing: -.035em; }
.guide-message strong { color: #26282d; font-size: 16px; }
.guide-message b { color: var(--red-700); }
.guide-closing { margin: 25px 0 0; color: #292b30; font-size: 21px; font-weight: 850; line-height: 1.45; letter-spacing: -.07em; }
.guide-closing span { color: var(--red-600); }
.guide-mark { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 260px; padding: 26px 20px; border: 1px solid #f0c4c6; border-radius: 24px; color: #fff; background: linear-gradient(145deg, #d3171e, #8f0c13); box-shadow: 0 23px 42px rgba(168, 15, 23, .2); text-align: center; }
.guide-mark img { width: 112px; height: 112px; margin-bottom: 18px; border-radius: 27px; object-fit: cover; box-shadow: 0 10px 22px rgba(32, 5, 6, .23); }
.guide-mark strong { font-size: 20px; line-height: 1.3; letter-spacing: -.07em; }
.guide-mark span { margin-top: 12px; color: #ffdfe0; font-size: 10px; }
.guide-privacy { display: grid; grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr); gap: 38px; padding: 37px 48px 40px; border-top: 1px solid #f1d8d9; background: #fffafa; }
.guide-section-heading h2 { margin: 0; color: #25272c; font-size: clamp(24px, 3vw, 34px); line-height: 1.28; letter-spacing: -.08em; }
.guide-section-heading h2 span { color: var(--red-600); }
.guide-section-heading > p:last-child { max-width: 440px; margin: 15px 0 0; color: #817174; font-size: 12px; line-height: 1.75; word-break: keep-all; }
.guide-trust-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
.guide-trust-grid article { min-height: 107px; padding: 14px 15px; border: 1px solid #f2d9da; border-radius: 13px; background: #fff; }
.guide-trust-grid article > span { color: var(--red-600); font-size: 10px; font-weight: 950; }
.guide-trust-grid strong, .guide-trust-grid p { display: block; }
.guide-trust-grid strong { margin-top: 9px; color: #4a292c; font-size: 12px; letter-spacing: -.04em; }
.guide-trust-grid p { margin: 5px 0 0; color: #9a7c7f; font-size: 10px; line-height: 1.45; }
.guide-visual-grid { display: grid; gap: 12px; }
.killer-card { display: flex; align-items: center; gap: 15px; min-height: 104px; padding: 11px 15px; border: 1px solid #f0c4c6; border-left: 4px solid var(--red-600); border-radius: 14px; background: rgba(255, 255, 255, .92); box-shadow: 0 8px 19px rgba(168, 15, 23, .08); }
.killer-card > span { min-width: 0; }
.killer-card strong, .killer-card small { display: block; }
.killer-card strong { color: #351f22; font-size: 14px; letter-spacing: -.05em; }
.killer-card small { margin-top: 5px; color: #95777b; font-size: 10px; line-height: 1.4; }
.killer-visual { position: relative; flex: 0 0 auto; width: 82px; height: 82px; overflow: hidden; border: 3px solid #17181b; border-radius: 50%; background: #fff; }
.killer-visual::before, .killer-visual::after { position: absolute; content: ""; z-index: 1; background: #17181b; }
.killer-visual::before { top: 50%; right: -4px; left: -4px; height: 3px; transform: translateY(-50%); }
.killer-visual::after { top: -4px; bottom: -4px; left: 50%; width: 3px; transform: translateX(-50%); }
.killer-visual i { position: absolute; z-index: 2; inset: 13px; border: 2px solid #17181b; border-radius: 50%; }
.killer-visual b { position: absolute; z-index: 3; top: 24px; left: 24px; width: 25px; height: 25px; background: var(--red-600); clip-path: polygon(50% 0%, 61% 18%, 79% 8%, 78% 29%, 100% 30%, 83% 46%, 100% 60%, 78% 65%, 82% 88%, 61% 77%, 50% 100%, 40% 78%, 18% 91%, 21% 68%, 0% 62%, 17% 47%, 0% 31%, 22% 28%, 18% 7%, 39% 18%); box-shadow: 0 0 0 2px #17181b; }
.killer-visual b::after { position: absolute; top: 8px; left: 8px; width: 9px; height: 9px; border-radius: 50%; background: #17181b; content: ""; }
.killer-visual em { position: absolute; z-index: 4; top: 31px; left: 0; width: 100%; color: #fff; font-size: 7px; font-style: normal; font-weight: 900; text-align: center; }
.panel-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; padding: 2px 2px 18px; }
.panel-heading h2 { margin: 0; color: #242529; font-size: 22px; letter-spacing: -.07em; }
.panel-heading p:last-child { max-width: 780px; margin: 7px 0 0; color: #80848b; font-size: 12px; line-height: 1.55; }
.panel-badge { flex: 0 0 auto; padding: 7px 10px; border: 1px solid #f2ced0; border-radius: 999px; color: #a52b31; background: #fff6f6; font-size: 10px; font-weight: 850; }
.tool-tabs { display: flex; align-items: center; gap: 6px; overflow-x: auto; padding: 0 2px; border-bottom: 1px solid #ededee; }
.tool-tab { position: relative; min-height: 39px; padding: 0 13px; border: 0; color: #9699a1; background: transparent; font-size: 11px; font-weight: 800; cursor: pointer; white-space: nowrap; }
.tool-tab::after { content: ""; position: absolute; right: 8px; bottom: -1px; left: 8px; height: 2px; border-radius: 99px; background: transparent; }
.tool-tab:hover { color: #6b6e75; }
.tool-tab.is-active { color: var(--red-600); }
.tool-tab.is-active::after { background: var(--red-600); }
.tool-view { padding-top: 16px; }
.tool-note { display: flex; align-items: center; gap: 10px; margin: 0 0 14px; padding: 11px 13px; border-left: 3px solid var(--red-600); border-radius: 0 9px 9px 0; color: #765256; background: #fff5f5; font-size: 11px; }
.tool-note strong { color: #8b161d; }
.tool-note span { color: #9e7376; }
.tool-frame { width: 100%; min-height: 1100px; display: block; border: 1px solid #ebebed; border-radius: 12px; background: #fff; }

.feature-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; margin-top: 16px; }
.feature-strip article { display: flex; align-items: center; gap: 11px; min-height: 73px; padding: 12px 14px; border: 1px solid #e9e9eb; border-radius: 13px; background: rgba(255,255,255,.74); }
.feature-strip article > span { color: var(--red-600); font-size: 10px; font-weight: 950; }
.feature-strip strong, .feature-strip p { display: block; }
.feature-strip strong { font-size: 11px; }
.feature-strip p { margin: 4px 0 0; color: #92959b; font-size: 10px; }
.app-footer { color: #d7e6f7; background: #0d2746; }
.footer-inner { width: min(1240px, calc(100% - 48px)); margin: 0 auto; padding: 30px 28px; }
.footer-main { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.creator-brand { display: inline-flex; align-items: center; gap: 13px; color: inherit; text-decoration: none; }
.creator-brand img { width: 52px; height: 52px; border-radius: 50%; object-fit: cover; }
.creator-brand span, .creator-brand strong, .creator-brand small { display: block; }
.creator-brand strong { color: #d5bd6a; font-size: 16px; letter-spacing: -.04em; }
.creator-brand small { margin-top: 5px; color: #a9c1dc; font-size: 11px; }
.footer-status { display: flex; align-items: baseline; gap: 10px; white-space: nowrap; }
.footer-status strong { color: #fff; font-size: 14px; letter-spacing: .05em; }
.footer-status span { color: #a9c1dc; font-size: 10px; }

@media (max-width: 980px) {
  .header-inner { flex-wrap: wrap; padding-top: 14px; padding-bottom: 14px; }
  .header-nav { order: 3; flex-basis: 100%; width: 100%; }
  .header-tab { flex: 1; }
}

@media (max-width: 820px) {
  .header-inner, .app-main { width: min(100% - 28px, 680px); }
  .footer-inner { width: min(100% - 28px, 680px); padding-right: 0; padding-left: 0; }
  .app-main { padding-top: 37px; }
  .hero { grid-template-columns: 1fr; gap: 21px; }
  .privacy-card { max-width: 500px; }
  .category-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .category-panel { padding: 18px 13px 24px; }
  .category-panel.guide-panel { padding: 0; }
  .guide-hero { grid-template-columns: 1fr; gap: 28px; padding: 40px 25px 34px; }
  .guide-visual-grid { width: min(100%, 430px); }
  .guide-privacy { grid-template-columns: 1fr; gap: 24px; padding: 31px 25px 33px; }
  .panel-heading { flex-direction: column; gap: 11px; }
  .panel-badge { align-self: flex-start; }
  .tool-frame { min-height: 1180px; }
}

@media (max-width: 560px) {
  .header-inner { min-height: 68px; }
  .brand-logo { width: 42px; height: 42px; border-radius: 11px; }
  .brand-copy strong { font-size: 17px; }
  .brand-copy > span:last-child, .header-status > span:last-child { display: none; }
  .header-status { padding: 8px; }
  .hero h1 { font-size: 36px; }
  .hero-copy > p:last-child { font-size: 13px; }
  .category-tabs { gap: 4px; padding: 4px; }
  .category-tab { justify-content: center; gap: 7px; padding: 10px 6px; }
  .category-tab .tab-icon { width: 27px; height: 27px; font-size: 10px; }
  .category-tab strong { font-size: 11px; }
  .category-tab small, .category-tab b { display: none; }
  .guide-hero { padding: 31px 18px 27px; }
  .guide-copy h1 { font-size: 49px; }
  .guide-lead { font-size: 13px; }
  .guide-message { font-size: 12px; }
  .guide-message strong { font-size: 14px; }
  .guide-closing { font-size: 18px; }
  .guide-privacy { padding: 27px 18px 28px; }
  .guide-trust-grid { grid-template-columns: 1fr; }
  .guide-visual-grid { width: 100%; }
  .killer-card { min-height: 96px; padding: 10px 12px; }
  .footer-main { align-items: flex-start; flex-direction: column; gap: 18px; }
  .footer-status { align-items: flex-start; flex-direction: column; gap: 4px; }
}