:root {
  --bg: #080b11;
  --panel: #111721;
  --line: #303846;
  --fg: #f7f7f5;
  --muted: #a8b0bc;
  --accent: #d7bba1;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family:
    "Noto Sans JP",
    system-ui,
    -apple-system,
    sans-serif;
}

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

button {
  font: inherit;
  cursor: pointer;
}

.shell {
  width: min(1440px, calc(100% - 8vw));
  margin: auto;
}

.header {
  height: 78px;
  position: absolute;
  z-index: 30;
  left: 0;
  right: 0;
  border-bottom: 1px solid #ffffff25;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 4vw;
}

.logo {
  font-size: 25px;
  font-weight: 900;
  letter-spacing: -1.8px;
}

.nav {
  display: flex;
  gap: 32px;
  align-items: center;
  font-size: 11px;
  letter-spacing: 0.19em;
}

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

.navtoggle {
  display: none;
  color: white;
  background: none;
  border: 0;
  font-size: 28px;
}

.hero {
  position: relative;
  min-height: 760px;
  height: 92svh;
  max-height: 1050px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #090d15;
}

.hero-media {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  transform: scale(1.015);
  transition:
    background-image 0.5s,
    opacity 0.5s;
}

.hero:after {
  content: "";
  position: absolute;
  inset: 0;
  /* 全スライド共通。中心は明るく、外周は暗くする */
  background:
    radial-gradient(ellipse at 60% 45%,
      rgba(5, 10, 20, 0.00) 0%,
      rgba(5, 10, 20, 0.12) 35%,
      rgba(5, 10, 20, 0.38) 70%,
      rgba(5, 10, 20, 0.72) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 70px;
  max-width: 700px;
}

.eyebrow {
  font-size: 11px;
  letter-spacing: 0.28em;
  color: #e1c9b8;
  text-transform: uppercase;
}

.hero h1 {
  font-family: Georgia, "Noto Serif JP", serif;
  font-size: clamp(46px, 6.8vw, 102px);
  font-weight: 500;
  line-height: 1.17;
  letter-spacing: 0.035em;
  margin: 22px 0;
}

.hero .sub {
  font-size: clamp(15px, 1.45vw, 20px);
  line-height: 2;
  color: #e2e4e8;
  max-width: 550px;
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 42px;
  padding: 18px 24px;
  margin-top: 28px;
  border: 1px solid #e6e6e6;
  color: white;
  font-size: 12px;
  letter-spacing: 0.12em;
  background: #ffffff10;
  transition: 0.2s;
}

.cta:hover {
  background: white;
  color: #10131b;
}

.hero-index {
  position: absolute;
  z-index: 3;
  bottom: 36px;
  left: 4vw;
  right: 4vw;
  display: flex;
  align-items: end;
  justify-content: space-between;
}

.hero-controls {
  display: flex;
  gap: 12px;
}

.hero-controls button {
  border: 1px solid #ffffff80;
  background: #10172299;
  color: white;
  width: 45px;
  height: 45px;
}

.hero-count {
  font-size: 12px;
  letter-spacing: 0.18em;
}

.section {
  padding: 95px 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  margin-bottom: 30px;
}

.section-head h2 {
  font-family: Georgia, serif;
  font-size: clamp(35px, 4vw, 60px);
  font-weight: 400;
  letter-spacing: 0.04em;
  margin: 5px 0;
}

.section-head p {
  color: var(--muted);
  font-size: 12px;
}

.smalllink {
  font-size: 11px;
  letter-spacing: 0.15em;
}

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

.product-card {
  background: #141a24;
  overflow: hidden;
}

.product-card .visual {
  height: 300px;
  background-size: cover;
  background-position: center;
  position: relative;
  transition: transform 0.4s;
}

.product-card:hover .visual {
  transform: scale(1.04);
}

.visual-wrap {
  overflow: hidden;
}

.product-info {
  padding: 25px;
}

.product-info h3 {
  font-size: 19px;
  font-weight: 500;
  margin: 10px 0;
}

.product-info p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.9;
}

.tag {
  color: #d6bca8;
  font-size: 10px;
  letter-spacing: 0.16em;
}

.news {
  border-top: 1px solid var(--line);
}

.news-row {
  display: grid;
  grid-template-columns: 135px 1fr 40px;
  align-items: center;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.news-row time {
  color: var(--muted);
  font-size: 12px;
}

.news-row span {
  font-size: 14px;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 40px 0;
  color: var(--muted);
  font-size: 11px;
  display: flex;
  justify-content: space-between;
}

.detail-hero {
  min-height: 720px;
  height: 86svh;
}

.detail-intro {
  background: #f1eee9;
  color: #20202a;
  padding: 100px 0;
}

.detail-intro .inner {
  max-width: 850px;
  margin: auto;
  text-align: center;
}

.detail-intro h2 {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(30px, 4.5vw, 64px);
  font-weight: 500;
  line-height: 1.55;
}

.detail-intro p {
  line-height: 2.4;
  color: #555;
  max-width: 680px;
  margin: 25px auto;
}

.feature {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  align-items: center;
  min-height: 540px;
  gap: 7vw;
}

.feature:nth-child(even) {
  direction: rtl;
}

.feature:nth-child(even) > * {
  direction: ltr;
}

.feature-img {
  height: 500px;
  background-position: center;
  background-size: cover;
}

.feature-copy h2 {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(28px, 3vw, 45px);
  font-weight: 500;
  line-height: 1.55;
}

.feature-copy p {
  line-height: 2.3;
  color: var(--muted);
  font-size: 14px;
}

.spec {
  background: #e9e7e3;
  color: #171b21;
  padding: 90px 0;
}

.spec h2 {
  font-family: Georgia, serif;
  font-size: 48px;
  font-weight: 400;
}

.spec dl {
  max-width: 850px;
}

.spec dl div {
  display: grid;
  grid-template-columns: 200px 1fr;
  border-bottom: 1px solid #bbb;
  padding: 19px 0;
  font-size: 14px;
  line-height: 1.7;
}

.spec dt {
  color: #6c6d72;
}

.spec dd {
  margin: 0;
}

.disclaimer {
  font-size: 11px;
  color: #777;
  line-height: 2;
}

.back {
  margin-top: 30px;
}

.art-note {
  font-size: 10px;
  color: #a6a6ad;
}

/* 画像ファイルは app.js の image で指定します。ここには記載しません。 */

@media (max-width: 800px) {
  .header {
    height: 65px;
  }

  .navtoggle {
    display: block;
  }

  .nav {
    display: none;
    position: absolute;
    top: 65px;
    left: 0;
    right: 0;
    background: #0b111c;
    padding: 26px;
    flex-direction: column;
    align-items: start;
  }

  .nav.open {
    display: flex;
  }

  .hero {
    height: 83svh;
    min-height: 650px;
  }

  .hero:after {
    background: linear-gradient(0deg, #060911 3%, #0609117d 65%, #0609113d);
  }

  .hero-content {
    align-self: end;
    padding-bottom: 130px;
  }

  .hero h1 {
    font-size: 48px;
  }

  .hero .sub {
    font-size: 14px;
  }

  .section {
    padding: 65px 0;
  }

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

  .product-card .visual {
    height: 270px;
  }

  .news-row {
    grid-template-columns: 1fr 25px;
    gap: 8px;
  }

  .news-row time {
    grid-column: 1/-1;
  }

  .footer {
    flex-direction: column;
    gap: 12px;
  }

  .feature,
  .feature:nth-child(even) {
    display: flex;
    flex-direction: column;
    gap: 20px;
    direction: ltr;
    margin-bottom: 70px;
  }

  .feature-img {
    width: 100%;
    height: 350px;
  }

  .feature-copy {
    width: 100%;
  }

  .detail-intro {
    padding: 65px 0;
  }

  .spec dl div {
    grid-template-columns: 110px 1fr;
  }

  .detail-hero {
    height: 85svh;
  }
}

/* v2: Keep the product unobstructed; anchor headline and CTA to the left. */
@media (min-width: 801px) {
  .hero:not(.detail-hero) .hero-content {
    width: min(1440px, calc(100% - 8vw));
    max-width: none;
    margin-inline: auto;
    padding-top: 70px;
    padding-right: 0;
  }

  .hero:not(.detail-hero) .hero-content > * {
    max-width: min(390px, 31vw);
  }

  .hero:not(.detail-hero) h1 {
    font-size: clamp(38px, 4.1vw, 66px);
    line-height: 1.28;
  }

  .hero:not(.detail-hero) .sub {
    font-size: clamp(13px, 1.15vw, 16px);
  }

  .hero:not(.detail-hero) .cta {
    gap: 26px;
    margin-top: 18px;
  }
}

@media (max-width: 800px) {
  .hero:not(.detail-hero) .hero-content {
    width: calc(100% - 8vw);
    margin-left: 4vw;
    margin-right: auto;
    padding-bottom: 126px;
    text-align: left;
  }

  .hero:not(.detail-hero) .hero-content > * {
    max-width: min(78vw, 350px);
  }

  .hero:not(.detail-hero) h1 {
    font-size: clamp(32px, 8.3vw, 46px);
    line-height: 1.25;
  }

  .hero:not(.detail-hero) .sub {
    font-size: 13px;
    line-height: 1.8;
  }

  .hero:not(.detail-hero) .cta {
    gap: 14px;
    margin-top: 15px;
    padding: 15px 16px;
  }
}

/* ANNULUS TOP: all slides share a radial vignette.
   Bright center / progressively darker edges; no directional gradient. */
.hero:not(.detail-hero)::after {
  background: radial-gradient(
    ellipse at 60% 45%,
    rgba(5, 10, 20, 0.00) 0%,
    rgba(5, 10, 20, 0.12) 35%,
    rgba(5, 10, 20, 0.40) 55%,
    rgba(5, 10, 20, 0.85) 100%
  );
}

.hero:not(.detail-hero) .hero-line {
  display: block;
  white-space: nowrap;
}

@media (min-width: 801px) {
  .hero:not(.detail-hero) .hero-content > h1 {
    max-width: min(630px, 49vw);
    font-size: clamp(35px, 3.5vw, 59px);
    line-height: 1.35;
  }
}

@media (max-width: 800px) {
  .hero:not(.detail-hero)::after {
    background: radial-gradient(
      ellipse at 55% 43%,
      rgba(5, 10, 20, 0.00) 0%,
      rgba(5, 10, 20, 0.14) 35%,
      rgba(5, 10, 20, 0.42) 70%,
      rgba(5, 10, 20, 0.76) 100%
    );
  }

  .hero:not(.detail-hero) .hero-content > h1 {
    max-width: 100%;
    font-size: clamp(25px, 6.4vw, 42px);
    line-height: 1.32;
  }
}

/* v4: Shift hero imagery slightly right, preserving copy and gradient.
   A smaller background-position X reveals more of the image's left edge,
   moving the pictured subject toward the right side of the viewport. */
@media (min-width: 801px) {
  .hero:not(.detail-hero) .hero-media {
    background-position: 43% center;
  }
}

/* v5: user-approved homepage image offset */
@media (min-width: 801px) {
  .hero:not(.detail-hero) .hero-media {
    transform: translateX(200px);
  }
}

/* STRIKE DOG product landing */
.sd-page {
  background: #090e14;
  color: #e7edf2;
  font-family: "Noto Sans JP", sans-serif;
  overflow: hidden;
}

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

.sd-page a {
  color: inherit;
}

.sd-page .sd-wrap {
  width: min(1240px, calc(100% - 9vw));
  margin: auto;
}

.sd-page .sd-top {
  min-height: 96vh;
  position: relative;
  display: flex;
  align-items: center;
  isolation: isolate;
  background: radial-gradient(
    ellipse at 73% 40%,
    #1b3952 0%,
    #0d1a28 35%,
    #080c12 70%
  );
}

.sd-page .sd-top:before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 89px,
      #b9d7ec0a 90px
    ),
    linear-gradient(90deg, #080c12 3%, transparent 73%);
  pointer-events: none;
  z-index: -1;
}

.sd-page .sd-hero-content {
  position: relative;
  z-index: 2;
  padding: 160px 0 110px;
  max-width: 640px;
}

.sd-page .sd-kicker {
  color: #82a9c5;
  letter-spacing: 0.27em;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

.sd-page .sd-title {
  font-family: Georgia, "Noto Serif JP", serif;
  font-weight: 500;
  font-size: clamp(56px, 7.2vw, 116px);
  line-height: 1.04;
  letter-spacing: 0.035em;
  margin: 26px 0 14px;
}

.sd-page .sd-en {
  font-family: Arial, sans-serif;
  letter-spacing: 0.3em;
  color: #89a5ba;
  font-size: clamp(13px, 1.5vw, 21px);
  font-weight: 700;
}

.sd-page .sd-lead {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(18px, 2.1vw, 29px);
  letter-spacing: 0.14em;
  line-height: 1.8;
  margin: 42px 0 20px;
}

.sd-page .sd-desc {
  font-size: 14px;
  color: #b1c0ca;
  line-height: 2.2;
  max-width: 490px;
}

.sd-page .sd-button {
  display: inline-flex;
  align-items: center;
  gap: 50px;
  margin-top: 30px;
  border: 1px solid #6c91aa;
  padding: 18px 24px;
  text-decoration: none;
  letter-spacing: 0.1em;
  font-size: 12px;
  transition: 0.2s;
}

.sd-page .sd-button:hover {
  background: #b4d3e6;
  color: #08121b;
}

.sd-page .sd-hero-art {
  position: absolute;
  right: 0;
  top: 8%;
  width: 55%;
  height: 84%;
  z-index: 1;
}

.sd-page .sd-slot {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  border: 1px solid #66859a48;
  background:
    radial-gradient(ellipse at 60% 25%, #36536b99, transparent 57%),
    linear-gradient(145deg, #1b2d3d, #0c151f 65%, #080d14);
  min-height: 280px;
  overflow: hidden;
}

.sd-page .sd-slot:before {
  content: "";
  position: absolute;
  inset: 16px;
  border: 1px solid #c2d7e91a;
  pointer-events: none;
}

.sd-page .sd-slot:after {
  content: "+";
  position: absolute;
  right: 28px;
  top: 20px;
  color: #86b5d1;
  opacity: 0.7;
  font-size: 20px;
}

.sd-page .sd-slot b {
  position: relative;
  font-size: 13px;
  letter-spacing: 0.12em;
  line-height: 1.8;
  color: #d3e3ee;
}

.sd-page .sd-slot small {
  position: relative;
  margin-top: 10px;
  color: #7f9db1;
  font-size: 10px;
  letter-spacing: 0.13em;
}

.sd-page .sd-slot .sd-num {
  font:
    800 82px Arial,
    sans-serif;
  letter-spacing: -0.08em;
  color: #a9d4ee12;
  position: absolute;
  bottom: -22px;
  right: 25px;
}

.sd-page .sd-hero-art .sd-slot {
  width: 100%;
  height: 100%;
  background: radial-gradient(
    ellipse at 50% 45%,
    #24445d,
    #101e2b 45%,
    #09121b 78%
  );
  border: 0;
}

.sd-page .sd-hero-art .sd-slot b {
  font-size: 18px;
}

.sd-page .sd-hero-art .sd-slot small {
  font-size: 12px;
}

.sd-page .sd-hero-art .sd-slot:before {
  inset: 5%;
}

.sd-page .sd-scroll {
  position: absolute;
  bottom: 32px;
  left: 4.5vw;
  z-index: 3;
  font:
    10px Arial,
    sans-serif;
  letter-spacing: 0.25em;
  color: #7c9bb0;
}

.sd-page .sd-rule {
  border-top: 1px solid #31506a80;
}

.sd-page .sd-intro {
  padding: 140px 0 130px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9vw;
  align-items: start;
}

.sd-page .sd-section-num {
  font:
    700 11px Arial,
    sans-serif;
  letter-spacing: 0.25em;
  color: #789ab2;
}

.sd-page h2 {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: clamp(32px, 4vw, 62px);
  line-height: 1.5;
  letter-spacing: 0.08em;
  margin: 24px 0;
}

.sd-page .sd-body {
  font-size: 14px;
  line-height: 2.45;
  color: #aebfc9;
}

.sd-page .sd-big-quote {
  font-family: Georgia, serif;
  color: #7899b1;
  font-size: clamp(50px, 8vw, 115px);
  line-height: 1.05;
  margin: 0;
}

.sd-page .sd-feature {
  padding: 100px 0 130px;
  border-top: 1px solid #274054;
}

.sd-page .sd-feature-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 8vw;
  align-items: center;
}

.sd-page .sd-feature:nth-of-type(even) .sd-feature-grid {
  grid-template-columns: 1.1fr 1fr;
}

.sd-page .sd-feature:nth-of-type(even) .sd-feature-grid > .sd-feature-copy {
  order: 2;
}

.sd-page .sd-feature:nth-of-type(even) .sd-feature-grid > .sd-slot {
  order: 1;
}

.sd-page .sd-feature .sd-slot {
  min-height: 530px;
}

.sd-page .sd-feature-copy {
  max-width: 490px;
}

.sd-page .sd-label {
  font:
    700 11px Arial,
    sans-serif;
  letter-spacing: 0.22em;
  color: #82a9c5;
}

.sd-page .sd-feature-copy h3 {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: clamp(27px, 3vw, 44px);
  line-height: 1.55;
  letter-spacing: 0.06em;
  margin: 18px 0 26px;
}

.sd-page .sd-feature-copy p {
  color: #afbfcb;
  font-size: 14px;
  line-height: 2.3;
}

.sd-page .sd-gallery {
  padding: 120px 0;
  background: #101a24;
}

.sd-page .sd-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
  margin-top: 48px;
}

.sd-page .sd-gallery-grid .sd-slot {
  min-height: 300px;
}

.sd-page .sd-spec {
  padding: 130px 0;
}

.sd-page .sd-spec-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 10vw;
}

.sd-page .sd-spec dl {
  margin: 0;
}

.sd-page .sd-spec dl div {
  display: grid;
  grid-template-columns: 145px 1fr;
  gap: 20px;
  border-bottom: 1px solid #284153;
  padding: 21px 0;
}

.sd-page .sd-spec dt {
  color: #7fa2bb;
  font-size: 12px;
}

.sd-page .sd-spec dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
}

.sd-page .sd-footnote {
  font-size: 11px;
  color: #8598a7;
  line-height: 2;
  margin-top: 30px;
}

.sd-page .sd-final {
  padding: 100px 0;
  text-align: center;
  background: linear-gradient(0deg, #0b151f, #152b3d);
}

.sd-page .sd-final h2 {
  margin-bottom: 8px;
}

.sd-page .sd-final .sd-button {
  margin-top: 36px;
}

.sd-page .sd-image {
  background-size: cover;
  background-position: center;
}

.sd-page .sd-image:before,
.sd-page .sd-image:after {
  display: none;
}

.sd-page .sd-image > b,
.sd-page .sd-image > small,
.sd-page .sd-image > .sd-num {
  display: none;
}

.sd-page .sd-image-caption {
  position: absolute;
  left: 20px;
  bottom: 15px;
  font-size: 10px;
  letter-spacing: 0.1em;
  color: white;
  background: #07101bcc;
  padding: 8px 10px;
}

.sd-page .sd-note {
  font-size: 12px;
  color: #91aabd;
  line-height: 1.8;
  margin-top: 16px;
}

.sd-page .sd-image .sd-image-caption {
  display: block;
}

@media (max-width: 800px) {
  .sd-page .sd-wrap {
    width: calc(100% - 42px);
  }

  .sd-page .sd-top {
    min-height: 800px;
    align-items: flex-start;
  }

  .sd-page .sd-hero-art {
    width: 100%;
    height: 56%;
    top: 5%;
    opacity: 0.52;
  }

  .sd-page .sd-hero-content {
    padding: 410px 0 80px;
  }

  .sd-page .sd-title {
    font-size: clamp(52px, 12vw, 80px);
  }

  .sd-page .sd-lead {
    margin-top: 26px;
  }

  .sd-page .sd-intro,
  .sd-page .sd-feature-grid,
  .sd-page .sd-feature:nth-of-type(even) .sd-feature-grid,
  .sd-page .sd-spec-layout {
    grid-template-columns: 1fr;
    gap: 35px;
  }

  .sd-page .sd-intro {
    padding: 85px 0;
  }

  .sd-page .sd-feature {
    padding: 70px 0;
  }

  .sd-page .sd-feature:nth-of-type(even) .sd-feature-grid > .sd-feature-copy {
    order: 0;
  }

  .sd-page .sd-feature:nth-of-type(even) .sd-feature-grid > .sd-slot {
    order: 0;
  }

  .sd-page .sd-feature .sd-slot {
    min-height: 370px;
  }

  .sd-page .sd-gallery {
    padding: 75px 0;
  }

  .sd-page .sd-gallery-grid {
    grid-template-columns: 1fr 1fr;
  }

  .sd-page .sd-gallery-grid .sd-slot {
    min-height: 190px;
  }

  .sd-page .sd-spec {
    padding: 75px 0;
  }

  .sd-page .sd-spec dl div {
    grid-template-columns: 110px 1fr;
  }

  .sd-page .sd-final {
    padding: 75px 0;
  }

  .sd-page .sd-big-quote {
    font-size: 72px;
  }
}

/* User-selected hero alignment */
@media (min-width: 801px) {
  .hero:not(.detail-hero) .hero-media {
    transform: translateX(0%);
  }
}
/* 真紅 TOP画像 PC */
.hero:not(.detail-hero) .hero-media.image-source {
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

/* 真紅 TOP画像 スマートフォン */
@media (max-width: 800px) {
  .hero:not(.detail-hero) .hero-media.image-source {
    background-size: auto 130%;
    background-position: center center;
  }
}
/* 真紅 TOP画像：ブラウザのズームに対応 */
@media (min-width: 801px) {
  .hero:not(.detail-hero) .hero-media.image-source {
    background-size: 130% auto;
    background-position: center center;
    background-repeat: no-repeat;
  }
}