@charset "UTF-8";

/* =========================================
   ポケットフロス ランディングページ
   カラー:パッケージ準拠(水色・白・グリーン)
========================================= */
:root {
  --blue: #29abe2;
  --blue-dark: #1b7fb0;
  --blue-pale: #d9effa;
  --blue-bg: #eef8fd;
  --green: #8cc63e;
  --green-dark: #6fa52c;
  --navy: #2b4a5e;
  --text: #3a4a54;
  --white: #ffffff;
  --red: #e94f4f;
  --radius: 16px;
  --font-round: "Zen Maru Gothic", "Noto Sans JP", sans-serif;
  --font-base: "Noto Sans JP", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: var(--font-base);
  color: var(--text);
  line-height: 1.8;
  background: var(--white);
  overflow-x: hidden;
}

img, svg { max-width: 100%; }
a { color: var(--blue-dark); }

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 760px; }

.pc-only { display: inline; }
.sp-only { display: none; }

/* ---------- ボタン ---------- */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 999px;
  font-family: var(--font-round);
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform .2s, box-shadow .2s, background .2s, color .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--green);
  color: #fff;
  box-shadow: 0 6px 16px rgba(140, 198, 62, .4);
}
.btn-primary:hover { background: var(--green-dark); }
.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, .8);
}
.btn-ghost:hover { background: rgba(255, 255, 255, .15); }
.btn-white {
  background: #fff;
  color: var(--blue-dark);
  box-shadow: 0 6px 16px rgba(0, 0, 0, .15);
}
.btn-large { padding: 18px 56px; font-size: 18px; border: none; }

/* ---------- ヘッダー ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .95);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 12px rgba(43, 74, 94, .08);
}
.header-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.brand-logo {
  display: block;
  height: 42px;
  width: auto;
  border-radius: 8px;
}
.global-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}
.global-nav a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--navy);
  text-decoration: none;
  transition: color .2s;
}
.global-nav a:hover { color: var(--blue); }
.global-nav .nav-cta {
  background: var(--green);
  color: #fff;
  font-weight: 700;
  padding: 9px 22px;
  border-radius: 999px;
  transition: background .2s;
}
.global-nav .nav-cta:hover { background: var(--green-dark); color: #fff; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 3px;
  margin: 0 auto;
  background: var(--navy);
  border-radius: 2px;
  transition: transform .25s, opacity .25s;
}

/* ---------- ヒーロー ---------- */
.hero {
  position: relative;
  background: linear-gradient(160deg, #bfe6f7 0%, #7fcdf0 45%, var(--blue) 100%);
  padding: 140px 0 0;
  overflow: hidden;
}
.hero-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px 110px;
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  align-items: center;
  gap: 40px;
}
.hero-eyebrow {
  display: inline-block;
  background: #fff;
  color: var(--blue-dark);
  font-family: var(--font-round);
  font-weight: 700;
  font-size: 15px;
  padding: 6px 20px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero-title {
  font-family: var(--font-round);
  font-weight: 900;
  font-size: clamp(27px, 3.7vw, 42px);
  line-height: 1.45;
  color: #fff;
  text-shadow: 0 2px 10px rgba(27, 127, 176, .3);
  margin-bottom: 22px;
}
.hero-title .marker {
  background: linear-gradient(transparent 62%, rgba(140, 198, 62, .85) 62%);
  padding: 0 2px;
}
.hero-lead {
  color: #fff;
  font-size: 16.5px;
  margin-bottom: 26px;
}
.hero-lead strong { color: #eaffc4; }
.hero-badges {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}
.hero-badges li {
  background: rgba(255, 255, 255, .92);
  color: var(--blue-dark);
  font-family: var(--font-round);
  font-weight: 700;
  font-size: 13.5px;
  padding: 5px 16px;
  border-radius: 999px;
  box-shadow: 0 2px 8px rgba(27, 127, 176, .2);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

.hero-visual {
  position: relative;
  height: 380px;
}
.floss-pick {
  position: absolute;
  width: 200px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) rotate(8deg);
  animation: floatPick 5s ease-in-out infinite;
}
@keyframes floatPick {
  0%, 100% { transform: translate(-50%, -50%) rotate(8deg); }
  50% { transform: translate(-50%, -56%) rotate(5deg); }
}
.tooth { position: absolute; width: 110px; }
.tooth-body { fill: #fff; stroke: #dceef7; stroke-width: 2; }
.tooth-1 {
  left: -4%;
  bottom: 2%;
  animation: floatTooth 4s ease-in-out infinite;
}
.tooth-2 {
  right: -2%;
  top: 4%;
  width: 90px;
  animation: floatTooth 4.6s ease-in-out .8s infinite;
}
@keyframes floatTooth {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.sparkle {
  position: absolute;
  color: #fff9c4;
  text-shadow: 0 0 10px rgba(255, 255, 180, .9);
  animation: twinkle 2.4s ease-in-out infinite;
}
.sparkle-1 { left: 12%; top: 10%; font-size: 26px; }
.sparkle-2 { right: 16%; bottom: 12%; font-size: 20px; animation-delay: .7s; }
.sparkle-3 { left: 22%; bottom: 30%; font-size: 15px; animation-delay: 1.3s; }
@keyframes twinkle {
  0%, 100% { opacity: .3; transform: scale(.8); }
  50% { opacity: 1; transform: scale(1.15); }
}
.hero-wave {
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  line-height: 0;
}
.hero-wave svg { width: 100%; height: 80px; display: block; }

/* ---------- セクション共通 ---------- */
.section { padding: 90px 0; }
.section-eyebrow {
  font-family: var(--font-round);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .25em;
  color: var(--blue);
  text-align: center;
  margin-bottom: 8px;
}
.section-eyebrow.light { color: #cfeafa; }
.section-title {
  font-family: var(--font-round);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 34px);
  color: var(--navy);
  text-align: center;
  margin-bottom: 24px;
  line-height: 1.5;
}
.section-title.light { color: #fff; }
.section-lead {
  text-align: center;
  margin-bottom: 48px;
  font-size: 16px;
}
.section-lead.light { color: #eaf6fd; }
.section-lead strong { color: var(--blue-dark); }

/* ---------- 商品紹介 ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--blue-bg);
  border-radius: var(--radius);
  padding: 32px 22px;
  text-align: center;
  transition: transform .25s, box-shadow .25s;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 28px rgba(41, 171, 226, .18);
}
.feature-icon {
  width: 64px; height: 64px;
  margin: 0 auto 18px;
}
.feature-card h3 {
  font-family: var(--font-round);
  font-weight: 700;
  font-size: 17px;
  color: var(--navy);
  margin-bottom: 10px;
}
.feature-card p { font-size: 13.5px; line-height: 1.75; text-align: left; }

/* ---------- 課題提起 ---------- */
.section-problem {
  background: linear-gradient(150deg, var(--blue-dark), var(--blue));
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.problem-card {
  position: relative;
  background: #fff;
  border-radius: var(--radius);
  padding: 36px 26px 28px;
  box-shadow: 0 10px 30px rgba(0, 40, 70, .15);
}
.problem-num {
  position: absolute;
  top: -16px; left: 22px;
  background: var(--navy);
  color: #fff;
  font-family: var(--font-round);
  font-weight: 700;
  font-size: 14px;
  padding: 4px 14px;
  border-radius: 999px;
}
.problem-card h3 {
  font-family: var(--font-round);
  font-weight: 700;
  font-size: 19px;
  color: var(--navy);
  margin-bottom: 10px;
}
.problem-card p { font-size: 14px; }
.problem-bridge {
  text-align: center;
  color: #fff;
  font-family: var(--font-round);
  font-weight: 700;
  font-size: clamp(20px, 2.6vw, 26px);
}
.problem-bridge strong {
  color: #eaffc4;
  border-bottom: 3px solid var(--green);
  padding-bottom: 2px;
}

/* ---------- 強み ---------- */
.strength-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
  margin-bottom: 70px;
}
.strength-item {
  display: flex;
  gap: 22px;
  align-items: flex-start;
  background: #fff;
  border: 2px solid var(--blue-pale);
  border-radius: var(--radius);
  padding: 28px 30px;
  transition: border-color .25s, box-shadow .25s;
}
.strength-item:hover {
  border-color: var(--blue);
  box-shadow: 0 10px 26px rgba(41, 171, 226, .14);
}
.strength-num {
  flex-shrink: 0;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--blue), var(--blue-dark));
  color: #fff;
  font-family: var(--font-round);
  font-weight: 900;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(41, 171, 226, .35);
}
.strength-body h3 {
  font-family: var(--font-round);
  font-weight: 700;
  font-size: 19px;
  color: var(--navy);
  margin-bottom: 8px;
}
.strength-body p { font-size: 14.5px; }
.strength-body strong { color: var(--blue-dark); }

/* 比較表 */
.compare-title {
  font-family: var(--font-round);
  font-weight: 700;
  font-size: 22px;
  color: var(--navy);
  text-align: center;
  margin-bottom: 26px;
}
.table-scroll { overflow-x: auto; }
.compare-table {
  width: 100%;
  min-width: 640px;
  border-collapse: separate;
  border-spacing: 0;
  border: 2px solid var(--blue-pale);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 14px;
}
.compare-table th, .compare-table td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--blue-pale);
  text-align: left;
  vertical-align: middle;
}
.compare-table thead th {
  background: var(--blue-bg);
  font-family: var(--font-round);
  font-weight: 700;
  color: var(--navy);
  font-size: 15px;
  text-align: center;
}
.compare-table thead th.col-pokeflo {
  background: var(--blue);
  color: #fff;
  font-size: 16px;
}
.compare-table tbody th {
  background: var(--blue-bg);
  font-weight: 700;
  color: var(--navy);
  width: 170px;
}
.compare-table tbody td.col-pokeflo {
  background: #f0fbff;
  font-weight: 500;
}
.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td { border-bottom: none; }
.mark {
  display: inline-block;
  font-weight: 900;
  margin-right: 8px;
  font-size: 16px;
}
.mark.good { color: var(--green-dark); }
.mark.bad { color: #b0b8bd; }

/* ---------- 活用シーン ---------- */
.section-scene { background: var(--blue-bg); }
.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 56px;
}
.scene-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
  box-shadow: 0 4px 14px rgba(43, 74, 94, .07);
  transition: transform .25s, box-shadow .25s;
}
.scene-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 26px rgba(43, 74, 94, .13);
}
.scene-photo {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.scene-body { padding: 20px 22px 24px; }
.scene-card h3 {
  font-family: var(--font-round);
  font-weight: 700;
  font-size: 17px;
  color: var(--navy);
  margin-bottom: 6px;
}
.scene-card p { font-size: 13.5px; }

.campaign {
  background: linear-gradient(140deg, var(--green), #a5d95f);
  border-radius: var(--radius);
  padding: 40px 36px;
  text-align: center;
  color: #fff;
}
.campaign-title {
  font-family: var(--font-round);
  font-weight: 900;
  font-size: clamp(19px, 2.4vw, 24px);
  margin-bottom: 10px;
}
.campaign p { font-size: 14.5px; margin-bottom: 22px; }
.campaign-list {
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}
.campaign-list li {
  background: #fff;
  color: var(--green-dark);
  font-family: var(--font-round);
  font-weight: 700;
  padding: 10px 24px;
  border-radius: 999px;
  font-size: 15px;
  box-shadow: 0 4px 10px rgba(0, 60, 0, .12);
}
.campaign-list li strong {
  display: block;
  font-size: 13px;
  color: var(--navy);
  font-weight: 700;
}

/* ---------- 信頼性 ---------- */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.trust-card {
  background: #fff;
  border-left: 6px solid var(--blue);
  border-radius: 10px;
  padding: 26px 28px;
  box-shadow: 0 4px 16px rgba(43, 74, 94, .08);
}
.trust-card h3 {
  font-family: var(--font-round);
  font-weight: 700;
  font-size: 18px;
  color: var(--navy);
  margin-bottom: 8px;
}
.trust-card p { font-size: 14px; }

/* ---------- CTAバンド ---------- */
.cta-band {
  background: linear-gradient(150deg, var(--blue), var(--blue-dark));
  padding: 70px 0;
  color: #fff;
}
.cta-band-inner {
  display: grid;
  grid-template-columns: 340px 1fr;
  align-items: center;
  gap: 50px;
}
.cta-photo img {
  display: block;
  width: 100%;
  border-radius: var(--radius);
  box-shadow: 0 14px 36px rgba(0, 40, 70, .3);
  background: #fff;
}
.cta-band h2 {
  font-family: var(--font-round);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 30px);
  margin-bottom: 12px;
}
.cta-band p { margin-bottom: 28px; font-size: 15.5px; }

/* ---------- フォーム ---------- */
.contact-form {
  background: var(--blue-bg);
  border-radius: var(--radius);
  padding: 44px 40px;
}
.form-row { margin-bottom: 22px; }
.form-row label {
  display: block;
  font-weight: 700;
  color: var(--navy);
  font-size: 14.5px;
  margin-bottom: 8px;
}
.required {
  display: inline-block;
  background: var(--red);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 1px 8px;
  border-radius: 4px;
  margin-left: 8px;
  vertical-align: middle;
}
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 13px 16px;
  border: 2px solid #cfe6f2;
  border-radius: 10px;
  font-family: var(--font-base);
  font-size: 15px;
  color: var(--text);
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(41, 171, 226, .15);
}
.form-row textarea { resize: vertical; }
.form-submit { text-align: center; margin-top: 32px; }

/* ---------- フッター ---------- */
.site-footer {
  background: var(--navy);
  color: #cfe0ea;
  padding: 54px 0 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 30px;
  padding-bottom: 40px;
}
.footer-logo-img {
  display: block;
  height: 52px;
  width: auto;
  border-radius: 8px;
}
.footer-note { font-size: 12.5px; margin-top: 10px; }
.footer-company { font-size: 13.5px; line-height: 2; }
.footer-company strong { color: #fff; }
.copyright {
  text-align: center;
  font-size: 12px;
  padding: 18px 24px;
  border-top: 1px solid rgba(255, 255, 255, .12);
}

/* ---------- ページトップ ---------- */
.to-top {
  position: fixed;
  right: 22px; bottom: 22px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 14px;
  box-shadow: 0 6px 16px rgba(41, 171, 226, .4);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s, transform .3s;
  transform: translateY(10px);
  z-index: 90;
}
.to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* ---------- スクロール表示アニメーション ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================
   レスポンシブ
========================================= */
@media (max-width: 960px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; padding-bottom: 60px; }
  .hero-visual { height: 320px; max-width: 420px; margin: 0 auto; width: 100%; }
}

@media (max-width: 768px) {
  .pc-only { display: none; }
  .sp-only { display: inline; }

  .global-nav {
    position: fixed;
    top: 60px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    box-shadow: 0 12px 24px rgba(43, 74, 94, .15);
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
  }
  .global-nav.open { max-height: 400px; }
  .global-nav a {
    padding: 15px 24px;
    border-top: 1px solid var(--blue-pale);
  }
  .global-nav .nav-cta {
    margin: 14px 24px 18px;
    text-align: center;
    border-radius: 999px;
  }
  .nav-toggle { display: flex; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

  .hero { padding-top: 110px; }
  .section { padding: 64px 0; }
  .problem-grid, .scene-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .strength-item { flex-direction: column; gap: 12px; padding: 24px 22px; }
  .cta-band-inner {
    grid-template-columns: 1fr;
    gap: 30px;
    text-align: center;
  }
  .cta-photo { max-width: 300px; margin: 0 auto; width: 100%; }
  .contact-form { padding: 30px 20px; }
  .footer-inner { flex-direction: column; }
}

@media (max-width: 480px) {
  .feature-grid { grid-template-columns: 1fr; }
  .hero-visual { height: 280px; }
  .floss-pick { width: 160px; }
  .tooth { width: 84px; }
  .tooth-2 { width: 70px; }
}