@charset "UTF-8";
:root {
  --bg: #14161a;
  --bg-soft: #191c21;
  --main: #e6e8ea;
  --text: #e6e8ea;
  --muted: rgba(230, 232, 234, 0.68);
  --accent: #4fa3a5;
  --accent-dark: #3f8c8e;
  --line: rgba(230, 232, 234, 0.18);
  --blue-soft: rgba(79, 163, 165, 0.12);
  --green-soft: rgba(79, 163, 165, 0.18);
  --white: #1b1e24;
  --card: rgba(230, 232, 234, 0.08);
  --card2: rgba(230, 232, 234, 0.12);
  --shadow: 0 10px 30px rgba(31, 4, 4, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* 旧Edge / IE */
}

html::-webkit-scrollbar,
body::-webkit-scrollbar,
::-webkit-scrollbar {
  display: none; /* Chrome / Edge / Safari */
}

body {
  margin: 0;
  font-family:
    "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  color: var(--text);
  line-height: 1.8;
  letter-spacing: 0.02em;
}

html {
  min-height: 100%;
  background: #172124;
}

body {
  margin: 0;
  min-height: 100%;
  font-family:
    "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  color: var(--fg);
  overflow-x: hidden;
  background: #172124;
}

.all {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  background:
    radial-gradient(
      circle at 12% 7%,
      rgba(79, 163, 165, 0.14),
      transparent 28%
    ),
    radial-gradient(
      circle at 88% 18%,
      rgba(115, 140, 145, 0.09),
      transparent 32%
    ),
    radial-gradient(
      circle at 16% 58%,
      rgba(79, 163, 165, 0.13),
      transparent 36%
    ),
    radial-gradient(
      circle at 84% 94%,
      rgba(135, 170, 170, 0.18),
      transparent 44%
    ),
    linear-gradient(
      180deg,
      #12181c 0%,
      #151e22 18%,
      #192428 38%,
      #1f2c30 62%,
      #27373a 82%,
      #304144 100%
    ) !important;
}

.all::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(
      128deg,
      transparent 0 44.2%,
      rgba(170, 210, 210, 0.07) 44.35%,
      transparent 44.55% 100%
    ),
    linear-gradient(
      34deg,
      transparent 0 57.2%,
      rgba(170, 210, 210, 0.055) 57.35%,
      transparent 57.55% 100%
    ),
    linear-gradient(
      152deg,
      transparent 0 64.2%,
      rgba(255, 255, 255, 0.048) 64.35%,
      transparent 64.55% 100%
    ),
    linear-gradient(
      74deg,
      transparent 0 42.2%,
      rgba(79, 163, 165, 0.062) 42.35%,
      transparent 42.55% 100%
    ),
    linear-gradient(
      112deg,
      transparent 0 70.2%,
      rgba(255, 255, 255, 0.04) 70.35%,
      transparent 70.55% 100%
    );
  background-size:
    680px 800px,
    860px 720px,
    960px 1020px,
    740px 900px,
    1020px 1120px;
  background-position:
    -180px 20px,
    190px 240px,
    -240px 700px,
    320px 1060px,
    -320px 1540px;
  opacity: 0.72;
}

.all::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(
      circle at 18% 18%,
      rgba(220, 245, 245, 0.12) 0 0.8px,
      transparent 1.5px
    ),
    radial-gradient(
      circle at 72% 28%,
      rgba(220, 245, 245, 0.09) 0 0.8px,
      transparent 1.5px
    ),
    radial-gradient(
      circle at 38% 74%,
      rgba(220, 245, 245, 0.1) 0 0.8px,
      transparent 1.5px
    ),
    radial-gradient(
      circle at 84% 82%,
      rgba(220, 245, 245, 0.085) 0 0.8px,
      transparent 1.5px
    );
  background-size:
    280px 330px,
    390px 440px,
    350px 400px,
    480px 540px;
  background-position:
    0 0,
    130px 170px,
    70px 380px,
    240px 560px;
  opacity: 0.62;
}

.containar,
#app,
#app > header,
#app > main,
#app > section,
.page,
.page-manual,
.manual-page,
.manual,
.manual-list,
.manual-section,
.manual-wrap,
.manual-inner,
.footer-color {
  background: transparent !important;
}

.containar::before,
.containar::after,
#app::before,
#app::after,
#app > header::before,
#app > header::after,
#app > main::before,
#app > main::after,
.page::before,
.page::after,
.page-manual::before,
.page-manual::after,
.manual-page::before,
.manual-page::after,
.manual-section::before,
.manual-section::after {
  background: transparent !important;
  display: none !important;
}

.containar,
#app,
nav,
footer {
  position: relative;
  z-index: 1;
}

@media (max-width: 768px) {
  .all {
    background:
      radial-gradient(
        circle at 16% 8%,
        rgba(79, 163, 165, 0.12),
        transparent 30%
      ),
      radial-gradient(
        circle at 84% 92%,
        rgba(135, 170, 170, 0.15),
        transparent 42%
      ),
      linear-gradient(180deg, #12181c 0%, #1a2529 45%, #304144 100%) !important;
  }

  .all::before {
    background-size:
      460px 560px,
      580px 520px,
      660px 760px,
      540px 680px,
      740px 860px;
    opacity: 0.58;
  }

  .all::after {
    opacity: 0.48;
  }
}

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  width: min(100% - 48px, 1200px);
  max-width: 1200px;
  margin: 0 auto;
}

/* =========================
      NAV
========================= */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;

  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);

  border-bottom: 1px solid rgba(217, 224, 231, 0.8);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  min-height: 80px;
}

/* 
  ロゴ対応
  HTMLが class="logo" の場合でも、
  class="nav-logo" に変更した場合でも動くように両対応
*/
.logo,
.nav-logo {
  flex: 0 0 auto;

  width: 160px;
  height: 56px;

  display: flex;
  align-items: center;
  justify-content: flex-start;

  text-decoration: none;
}

.logo img,
.nav-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* ナビリンク */
.nav-links {
  flex: 1;

  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 28px;

  font-size: 14px;
  font-weight: 700;
  color: var(--main);
  white-space: nowrap;
}

/* ロゴが .nav-links の中にある現在のHTMLでも崩れにくくする */
.nav-links .logo,
.nav-links .nav-logo {
  margin-right: auto;
}

.nav-links a {
  color: inherit;
  text-decoration: none;
  line-height: 1;
  transition: 0.2s ease;
}

.nav-links a:hover {
  color: var(--accent);
}

.nav-contact {
  flex: 0 0 auto;

  padding: 10px 18px;
  border: 1px solid var(--accent);
  border-radius: 999px;

  color: var(--accent) !important;
  background: var(--white);
  transition: 0.2s ease;
}

.nav-contact:hover {
  background: var(--accent);
  color: var(--white) !important;
}

/* =========================
      HEADER
========================= */

.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(
    90deg,
    var(--bg) 0%,
    var(--bg) 68%,
    var(--green-soft) 68%,
    var(--green-soft) 100%
  );
  border-bottom: 1px solid rgba(217, 224, 231, 0.6);
}

.hero::after {
  content: "";
  position: absolute;
  right: 16%;
  top: -80px;
  width: 320px;
  height: 520px;
  background: rgba(80, 125, 96, 0.22);
  transform: rotate(42deg);
  border-radius: 90px;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 64px;
  align-items: center;
  min-height: 520px;
  padding: 72px 0;
}

.breadcrumb {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 34px;
}

.breadcrumb span {
  color: var(--main);
  font-weight: 700;
}

.hero-title {
  margin: 0;
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1.25;
  letter-spacing: 0.04em;
  color: var(--main);
}

.hero-lead {
  margin: 24px 0 0;
  max-width: 640px;
  color: #344054;
  font-size: 16px;
}

.hero-actions {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 28px;
  border-radius: 9px;
  font-size: 15px;
  font-weight: 800;
  transition: 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 10px 20px rgba(255, 90, 31, 0.22);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.btn-outline {
  background: var(--white);
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-outline:hover {
  background: #fff4ef;
}

.hero-visual {
  position: relative;
  background: var(--white);
  aspect-ratio: 1 / 1;
  border-radius: 4px;
  padding: 36px;
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
}

.image-placeholder {
  width: 100%;
  height: 100%;
  border-radius: 18px;
  background:
    radial-gradient(
      circle at 72% 28%,
      rgba(255, 90, 31, 0.18),
      transparent 26%
    ),
    radial-gradient(
      circle at 28% 72%,
      rgba(40, 97, 145, 0.15),
      transparent 28%
    ),
    linear-gradient(135deg, #f6f8fb, #ffffff);
  border: 1px dashed #ccd6e0;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--muted);
  font-weight: 800;
}

.image-placeholder small {
  display: block;
  margin-top: 8px;
  font-weight: 600;
  font-size: 13px;
}

/* =========================
      COMMON
========================= */

.content-area {
  padding: 64px 0 96px;
}

.article-block {
  margin-top: 72px;
}

.section-heading {
  position: relative;
  display: inline-block;
  width: 100%;
  margin: 0 0 28px;
  padding: 16px 20px;
  background: var(--blue-soft);
  color: var(--main);
  font-size: clamp(26px, 3vw, 40px);
  line-height: 1.35;
  letter-spacing: 0.04em;
}

.section-heading::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18%;
  width: 5px;
  height: 64%;
  background: #7aa1c4;
  border-radius: 999px;
}

.section-lead {
  margin: 0 0 28px;
  color: #344054;
  font-size: 16px;
}

.sub-section {
  margin-top: 42px;
  padding-left: 18px;
  border-left: 3px solid #d8e5f1;
}

.sub-section h3 {
  margin: 0 0 14px;
  font-size: 24px;
  color: var(--main);
  line-height: 1.4;
}

.sub-section p {
  margin: 0;
  color: #344054;
}

.card-list {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.point-card {
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 8px 22px rgba(15, 31, 46, 0.04);
}

.point-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  color: var(--main);
}

.point-card p {
  margin: 0;
  color: #475467;
}

/* =========================
      TABLE OF CONTENTS
========================= */

.toc {
  max-width: 780px;
  margin: 0 auto 72px;
  padding: 36px 40px;
  background: #fbf7ef;
  border-radius: 12px;
  border: 1px solid #eee4d5;
}

.toc-title {
  margin: 0 0 18px;
  font-size: 22px;
  color: var(--main);
}

.toc ol {
  margin: 0;
  padding-left: 1.3em;
}

.toc li {
  margin: 10px 0;
  font-weight: 800;
  color: var(--main);
}

.toc a {
  border-bottom: 1px solid currentColor;
}

/* =========================
      PROFILE
========================= */

.profile-box {
  display: grid;
  grid-template-columns: 3fr 7fr;
  gap: 40px;
  align-items: center;
  padding: 36px;
  background: #fbfaf7;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.profile-icon img {
  aspect-ratio: 1 / 1;
  border-radius: 50%;
}

.profile-text h3 {
  margin: 0 0 14px;
  font-size: 28px;
  color: var(--main);
}

.profile-text p {
  margin: 0 0 14px;
  font-size: 16px;
  color: #344054;
}

.profile-meta {
  display: inline-flex;
  margin-top: 8px;
  padding: 8px 14px;
  background: #fff4ef;
  border-radius: 999px;
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 800;
}

.imgbd {
  width: 80%;
  margin: 0 auto 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* =========================
      FAQ
========================= */

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
}

.faq-item summary {
  cursor: pointer;
  padding: 20px 24px;
  font-weight: 800;
  color: var(--main);
  list-style: none;
}

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

.faq-item summary::before {
  content: "Q.";
  color: var(--accent);
  margin-right: 8px;
}

.faq-item p {
  margin: 0;
  padding: 0 24px 22px;
  color: #475467;
}

/* =========================
      CTA
========================= */

.final-cta {
  margin-top: 84px;
  padding: 48px;
  border-radius: 24px;
  background: linear-gradient(135deg, #101f2e, #1f3448);
  color: var(--white);
  text-align: center;
  box-shadow: var(--shadow);
}

.final-cta h2 {
  margin: 0;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.82);
}

.final-cta p {
  margin: 18px auto 0;
  max-width: 720px;
  color: rgba(255, 255, 255, 0.82);
}

.final-cta .hero-actions {
  justify-content: center;
}

.final-cta .btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.6);
}

.final-cta .btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* =========================
      FOOTER
========================= */

.footer {
  padding: 32px 0;
  border-top: 1px solid var(--line);
  background: #fbfaf7;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

/* =========================
      RESPONSIVE
========================= */

@media (max-width: 900px) {
  .container {
    width: min(100% - 36px, 1200px);
  }

  .nav-inner {
    padding: 12px 0;
    min-height: 80px;
    align-items: center;
    flex-direction: row;
    gap: 24px;
  }

  .logo,
  .nav-logo {
    width: 160px;
    height: 56px;
  }

  .nav-links {
    width: auto;
    justify-content: flex-end;
    gap: 18px;
    font-size: 13px;
  }

  .hero {
    background: var(--bg);
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
    min-height: auto;
    padding: 52px 0;
  }

  .hero::after {
    display: none;
  }

  .hero-visual {
    max-width: 460px;
    margin: 0 auto;
  }

  .profile-box {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .profile-icon {
    width: min(260px, 100%);
    margin: 0 auto;
  }
}

@media (max-width: 720px) {
  .nav-inner {
    gap: 16px;
  }

  .logo,
  .nav-logo {
    width: 160px;
    height: 56px;
  }

  .nav-links {
    gap: 14px;
    font-size: 12px;
  }

  .nav-contact {
    padding: 9px 14px;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 28px, 1200px);
  }

  .nav-inner {
    min-height: 80px;
    padding: 8px 0;
    gap: 10px;
  }

  .logo,
  .nav-logo {
    width: 160px;
    height: 56px;
  }

  .nav-links {
    flex: 1;
    justify-content: flex-end;
    gap: 0;
    flex-wrap: nowrap;
  }

  /* スマホは通常リンクを消して、お問い合わせだけ残す */
  .nav-links a:not(.logo):not(.nav-logo):not(.nav-contact) {
    display: none;
  }

  .nav-contact {
    font-size: 12px;
    padding: 8px 12px;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .toc {
    padding: 28px 24px;
  }

  .section-heading {
    font-size: 26px;
    padding: 14px 16px;
  }

  .profile-box,
  .final-cta {
    padding: 28px 22px;
  }
}

@media (max-width: 380px) {
  .container {
    width: min(100% - 20px, 1200px);
  }

  .nav-inner {
    min-height: 80px;
  }

  .logo,
  .nav-logo {
    width: 160px;
    height: 56px;
  }

  .nav-contact {
    font-size: 11px;
    padding: 7px 10px;
  }
}

/* =========================
      MANUAL INDEX PAGE
========================= */

.manual-index {
  margin-top: 0;
}

.manual-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.manual-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--white);
  box-shadow: 0 10px 28px rgba(15, 31, 46, 0.06);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease;
}

.manual-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 90, 31, 0.35);
  box-shadow: 0 18px 42px rgba(15, 31, 46, 0.1);
}

.manual-card-featured {
  border-color: rgba(255, 90, 31, 0.35);
}

.manual-card-link {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100%;
  color: inherit;
  text-decoration: none;
}

.manual-thumb {
  position: relative;
  min-height: 100%;
  background: #f6f8fb;
  border-right: 1px solid var(--line);
  overflow: hidden;
}

.manual-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.manual-thumb-empty {
  display: grid;
  place-items: center;
  background:
    radial-gradient(
      circle at 72% 28%,
      rgba(255, 90, 31, 0.14),
      transparent 28%
    ),
    radial-gradient(
      circle at 24% 76%,
      rgba(40, 97, 145, 0.12),
      transparent 30%
    ),
    linear-gradient(135deg, #f6f8fb, #ffffff);
}

.manual-thumb-empty span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border: 1px solid rgba(102, 112, 133, 0.24);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.manual-body {
  padding: 26px 28px 28px;
}

.manual-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.manual-label,
.manual-category {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
  line-height: 1;
}

.manual-label {
  padding: 8px 11px;
  background: #fff4ef;
  color: var(--accent-dark);
}

.manual-label-soon {
  background: #eef5fb;
  color: #486a8b;
}

.manual-category {
  padding: 7px 10px;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--muted);
}

.manual-body h3 {
  margin: 0;
  color: var(--main);
  font-size: clamp(21px, 2vw, 28px);
  line-height: 1.35;
  letter-spacing: 0.03em;
}

.manual-body p {
  margin: 14px 0 0;
  color: #475467;
  font-size: 15px;
}

.manual-points {
  display: grid;
  gap: 6px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.manual-points li {
  position: relative;
  padding-left: 1.25em;
  color: #344054;
  font-size: 14px;
  font-weight: 700;
}

.manual-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.manual-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin-top: 22px;
  padding: 0 18px;
  border-radius: 9px;
  background: var(--accent);
  color: var(--white);
  font-size: 14px;
  font-weight: 900;
  box-shadow: 0 8px 18px rgba(255, 90, 31, 0.18);
}

.manual-button::after {
  content: "→";
  margin-left: 8px;
}

.manual-button-disabled {
  background: #eef2f6;
  color: var(--muted);
  box-shadow: none;
}

.manual-button-disabled::after {
  content: "";
  margin-left: 0;
}

/* 準備中カードは押せる見た目を少し弱める */
.manual-card:has(.manual-button-disabled) {
  opacity: 0.92;
}

.manual-card:has(.manual-button-disabled):hover {
  transform: none;
  border-color: var(--line);
  box-shadow: 0 10px 28px rgba(15, 31, 46, 0.06);
}

/* =========================
      MANUAL INDEX RESPONSIVE
========================= */

@media (max-width: 1020px) {
  .manual-grid {
    grid-template-columns: 1fr;
  }

  .manual-card-link {
    grid-template-columns: 240px 1fr;
  }
}

@media (max-width: 720px) {
  .manual-card-link {
    grid-template-columns: 1fr;
  }

  .manual-thumb {
    height: 220px;
    border-right: none;
    border-bottom: 1px solid var(--line);
  }

  .manual-body {
    padding: 24px 22px 26px;
  }
}

@media (max-width: 560px) {
  .manual-grid {
    gap: 18px;
  }

  .manual-thumb {
    height: 190px;
  }

  .manual-meta {
    gap: 8px;
  }

  .manual-body h3 {
    font-size: 22px;
  }

  .manual-button {
    width: 100%;
  }
}
.footer-inner {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
body {
  background:
    radial-gradient(
      circle at 18% 18%,
      rgba(79, 163, 165, 0.18),
      transparent 34%
    ),
    radial-gradient(
      circle at 82% 28%,
      rgba(230, 232, 234, 0.08),
      transparent 30%
    ),
    linear-gradient(135deg, #101216 0%, #14161a 48%, #1b2025 100%);
  color: var(--text);
}

.site-nav {
  background: rgba(20, 22, 26, 0.86);
  border-bottom: 1px solid var(--line);
}

.nav-links {
  color: var(--fg, #e6e8ea);
}

.nav-contact,
.btn-outline {
  background: rgba(230, 232, 234, 0.06);
  color: var(--accent) !important;
  border-color: rgba(79, 163, 165, 0.65);
}

.nav-contact:hover,
.btn-outline:hover {
  background: rgba(79, 163, 165, 0.16);
  color: #ffffff !important;
}

.hero {
  background:
    radial-gradient(
      circle at 80% 20%,
      rgba(79, 163, 165, 0.2),
      transparent 34%
    ),
    linear-gradient(90deg, #14161a 0%, #14161a 62%, #1d2b2d 100%);
  border-bottom: 1px solid var(--line);
}

.hero::after {
  background: rgba(79, 163, 165, 0.14);
  filter: blur(2px);
}

.breadcrumb,
.hero-lead,
.section-lead,
.sub-section p,
.point-card p,
.profile-text p,
.faq-item p,
.manual-body p,
.manual-points li {
  color: rgba(230, 232, 234, 0.76);
}

.breadcrumb span,
.hero-title,
.section-heading,
.sub-section h3,
.point-card h3,
.toc-title,
.toc li,
.profile-text h3,
.faq-item summary,
.manual-body h3 {
  color: var(--main);
}

.btn-primary,
.manual-button {
  background: linear-gradient(135deg, #4fa3a5, #357f82);
  color: #ffffff;
  box-shadow: 0 10px 22px rgba(79, 163, 165, 0.22);
}

.btn-primary:hover,
.manual-button:hover {
  background: linear-gradient(135deg, #5bb4b6, #3f8c8e);
}

.hero-visual,
.profile-box,
.point-card,
.faq-item,
.manual-card,
.toc {
  background: rgba(230, 232, 234, 0.08);
  border-color: var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.section-heading {
  background: rgba(79, 163, 165, 0.12);
}

.section-heading::before {
  background: var(--accent);
}

.sub-section {
  border-left-color: rgba(79, 163, 165, 0.45);
}

.toc {
  background: rgba(230, 232, 234, 0.07);
}

.profile-meta,
.manual-label {
  background: rgba(79, 163, 165, 0.14);
  color: #9be3e5;
}

.manual-category {
  background: rgba(230, 232, 234, 0.06);
  color: rgba(230, 232, 234, 0.68);
  border-color: var(--line);
}

.manual-card:hover {
  border-color: rgba(79, 163, 165, 0.55);
  box-shadow: 0 18px 42px rgba(31, 4, 4, 0.45);
}

.manual-card-featured {
  border-color: rgba(79, 163, 165, 0.5);
}

.manual-thumb {
  background: rgba(230, 232, 234, 0.06);
  border-right-color: var(--line);
}

.manual-thumb-empty {
  background:
    radial-gradient(
      circle at 72% 28%,
      rgba(79, 163, 165, 0.18),
      transparent 28%
    ),
    radial-gradient(
      circle at 24% 76%,
      rgba(230, 232, 234, 0.08),
      transparent 30%
    ),
    linear-gradient(
      135deg,
      rgba(230, 232, 234, 0.06),
      rgba(230, 232, 234, 0.02)
    );
}

.manual-thumb-empty span {
  background: rgba(20, 22, 26, 0.72);
  color: rgba(230, 232, 234, 0.72);
  border-color: var(--line);
}

.manual-points li::before {
  background: var(--accent);
}

.manual-button-disabled {
  background: rgba(230, 232, 234, 0.12);
  color: rgba(230, 232, 234, 0.52);
}

.final-cta {
  background:
    radial-gradient(
      circle at 20% 20%,
      rgba(79, 163, 165, 0.22),
      transparent 34%
    ),
    linear-gradient(135deg, #12151a, #1d262b);
}

.footer {
  background: rgba(20, 22, 26, 0.92);
  border-top: 1px solid var(--line);
  color: rgba(230, 232, 234, 0.62);
}

.imgbd {
  border-color: var(--line);
  box-shadow: var(--shadow);
}
html,
body {
  height: auto !important;
}
/* =========================
      RELATED MANUALS
========================= */

.related-manuals {
  margin-top: 84px;
}

.related-manual-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 28px;
}

.related-manuals .manual-card {
  height: 100%;
}

.related-manuals .manual-card-link {
  display: grid;
  grid-template-columns: 1fr;
  height: 100%;
}

.related-manuals .manual-thumb {
  min-height: auto;
  aspect-ratio: 16 / 9;
  border-right: none;
  border-bottom: 1px solid var(--line);
}

.related-manuals .manual-body {
  padding: 22px 22px 24px;
}

.related-manuals .manual-body h3 {
  font-size: 21px;
}

.related-manuals .manual-body p {
  font-size: 14px;
}

.related-manuals .manual-points {
  margin-top: 14px;
}

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