/* ===== 世良コミュニケーションズ - 親しみやすさ・爽やかさテーマ（グリーン×スカイブルー） ===== */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700;900&display=swap');

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --green:#27ae74;--green-dark:#1a8a5a;--green-light:#7dc843;
  --green-pale:#edfaf4;--green-mid:#d4f5e3;
  --sky:#0ea5e9;--sky-dark:#0284c7;--sky-mid:#38bdf8;--sky-pale:#e0f7ff;
  --navy:#1e2d3d;--navy-mid:#2d4059;
  --gray:#6b7280;--gray-light:#f4f6f8;--gray-border:#e5e7eb;
  --white:#fff;--text:#1e2d3d;
  --radius:12px;--radius-lg:20px;
  --shadow:0 4px 24px rgba(39,174,116,.12);
  --shadow-md:0 8px 40px rgba(39,174,116,.16);
  --transition:.25s ease;
}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans JP',sans-serif;color:var(--text);background:var(--white);font-size:16px;line-height:1.7}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
.container{max-width:1080px;margin:0 auto;padding:0 32px}

/* ===== HEADER ===== */
.header{position:fixed;top:0;width:100%;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid rgba(39,174,116,.12);z-index:200;transition:var(--transition)}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:12px}
.logo img{height:40px;width:auto}
.nav{display:flex;align-items:center;gap:28px}
.nav a{font-size:13px;font-weight:500;color:var(--gray);transition:var(--transition);letter-spacing:.03em}
.nav a:hover{color:var(--green)}
.btn-nav{background:var(--green);color:var(--white)!important;padding:10px 22px;border-radius:50px;font-size:13px;font-weight:700;transition:var(--transition)}
.btn-nav:hover{background:var(--green-dark);transform:translateY(-1px)}

/* ===== HERO ===== */
.hero{padding:120px 0 80px;background:linear-gradient(160deg,var(--sky-pale) 0%,var(--green-pale) 50%,#fff 100%);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-120px;right:-80px;width:500px;height:500px;border-radius:50%;background:radial-gradient(circle,rgba(14,165,233,.14) 0%,transparent 70%)}
.hero::after{content:'';position:absolute;bottom:-60px;left:-60px;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(39,174,116,.1) 0%,transparent 70%)}
.hero__inner{display:grid;grid-template-columns:1fr 420px;gap:64px;align-items:center;position:relative;z-index:1}
.hero__tag{display:inline-flex;align-items:center;gap:8px;background:var(--green-pale);border:1px solid rgba(39,174,116,.25);color:var(--green-dark);padding:6px 16px;border-radius:50px;font-size:12px;font-weight:700;margin-bottom:20px;letter-spacing:.05em}
.hero__tag::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--green);flex-shrink:0}
.hero__title{font-size:clamp(28px,4vw,46px);font-weight:900;line-height:1.4;margin-bottom:24px;color:var(--navy)}
.hero__title em{color:var(--green);font-style:normal}
.hero__concept{font-size:15px;color:var(--gray);line-height:2;margin-bottom:36px;border-left:3px solid var(--green);padding-left:16px}
.hero__btns{display:flex;gap:12px;flex-wrap:wrap}
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--green);color:var(--white);padding:16px 36px;border-radius:50px;font-weight:700;font-size:15px;box-shadow:0 4px 20px rgba(39,174,116,.35);transition:var(--transition)}
.btn-primary:hover{background:var(--green-dark);transform:translateY(-2px);box-shadow:0 8px 28px rgba(39,174,116,.4)}
.btn-secondary{display:inline-flex;align-items:center;gap:8px;background:var(--white);color:var(--green);padding:16px 32px;border-radius:50px;font-weight:700;font-size:15px;border:2px solid var(--green);transition:var(--transition)}
.btn-secondary:hover{background:var(--green-pale)}
.hero__visual{position:relative}
.hero__card{background:var(--white);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-md);border:1px solid var(--gray-border)}
.hero__card-logo{width:80px;height:80px;margin:0 auto 20px;border-radius:16px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:var(--green-pale);padding:8px}
.hero__card-logo img{width:100%;height:100%;object-fit:contain}
.hero__card h3{font-size:18px;font-weight:700;text-align:center;color:var(--navy);margin-bottom:24px}
.hero__services{display:flex;flex-direction:column;gap:12px}
.hero__service-item{display:flex;align-items:center;gap:12px;background:var(--green-pale);border-radius:var(--radius);padding:14px 16px}
.hero__service-item__icon{font-size:24px;flex-shrink:0}
.hero__service-item__text h4{font-size:14px;font-weight:700;color:var(--navy);margin-bottom:2px}
.hero__service-item__text p{font-size:12px;color:var(--gray)}
.hero__chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}
.chip{background:var(--green-pale);color:var(--green-dark);padding:4px 12px;border-radius:50px;font-size:12px;font-weight:600;border:1px solid rgba(39,174,116,.2)}

/* ===== SECTION COMMON ===== */
.sec{padding:88px 0}
.sec--gray{background:var(--gray-light)}
.sec--green{background:var(--green-pale)}
.sec--dark{background:var(--navy)}
.sec-header{text-align:center;margin-bottom:60px}
.sec-label{display:inline-block;background:var(--green-pale);color:var(--green-dark);padding:4px 16px;border-radius:50px;font-size:12px;font-weight:700;letter-spacing:.08em;margin-bottom:12px;border:1px solid rgba(39,174,116,.2)}
.sec-title{font-size:clamp(22px,3vw,30px);font-weight:900;color:var(--navy);margin-bottom:12px;line-height:1.4}
.sec--dark .sec-title{color:var(--white)}
.sec-lead{font-size:15px;color:var(--gray);max-width:540px;margin:0 auto}
.sec-divider{width:40px;height:3px;background:linear-gradient(90deg,var(--green),var(--sky));border-radius:2px;margin:16px auto}

/* ===== SERVICES ===== */
.services__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.service-card{background:var(--white);border-radius:var(--radius-lg);padding:40px 36px;border:1px solid var(--gray-border);transition:var(--transition);position:relative;overflow:hidden}
.service-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--green),var(--sky))}
.service-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px);border-color:rgba(39,174,116,.3)}
.service-card__icon{font-size:48px;margin-bottom:20px}
.service-card__num{position:absolute;top:20px;right:28px;font-size:64px;font-weight:900;color:var(--green);opacity:.06;line-height:1}
.service-card h3{font-size:22px;font-weight:700;color:var(--navy);margin-bottom:8px}
.service-card__sub{font-size:12px;color:var(--green);font-weight:700;letter-spacing:.08em;margin-bottom:16px}
.service-card p{font-size:14px;color:var(--gray);line-height:1.9;margin-bottom:24px}
.service-card__list{display:flex;flex-direction:column;gap:8px}
.service-card__list li{list-style:none;font-size:13px;color:var(--navy);display:flex;align-items:flex-start;gap:8px;line-height:1.6}
.service-card__list li::before{content:'✓';color:var(--green);font-weight:700;flex-shrink:0;margin-top:1px}

/* ===== REASONS ===== */
.reasons__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.reason-card{background:var(--white);border-radius:var(--radius-lg);padding:32px 24px;text-align:center;border:1px solid var(--gray-border);transition:var(--transition)}
.reason-card:hover{box-shadow:var(--shadow);border-color:rgba(39,174,116,.25)}
.reason-card__num{font-size:13px;font-weight:700;color:var(--green);letter-spacing:.15em;margin-bottom:12px}
.reason-card__emoji{font-size:44px;margin-bottom:16px}
.reason-card h3{font-size:16px;font-weight:700;color:var(--navy);margin-bottom:12px;line-height:1.5}
.reason-card p{font-size:13px;color:var(--gray);line-height:1.8}

/* ===== FLOW ===== */
.flow__steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.flow__steps::before{content:'';position:absolute;top:36px;left:10%;right:10%;height:2px;background:linear-gradient(90deg,var(--green),var(--sky));z-index:0}
.flow-step{text-align:center;position:relative;z-index:1}
.flow-step__num{width:72px;height:72px;border-radius:50%;background:linear-gradient(135deg,var(--green),var(--sky));color:var(--white);font-size:20px;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;box-shadow:0 4px 20px rgba(14,165,233,.25)}
.flow-step h3{font-size:13px;font-weight:700;color:var(--navy);margin-bottom:6px;line-height:1.4}
.flow-step p{font-size:12px;color:var(--gray);line-height:1.6}

/* ===== ABOUT ===== */
.about__inner{display:grid;grid-template-columns:360px 1fr;gap:72px;align-items:center}
.about__photo{position:relative}
.about__photo-frame{border-radius:var(--radius-lg);overflow:hidden;background:var(--green-pale);height:440px;display:flex;align-items:center;justify-content:center}
.about__photo-frame img{width:100%;height:100%;object-fit:cover;object-position:center top}
.about__photo-badge{position:absolute;bottom:-16px;left:50%;transform:translateX(-50%);background:var(--white);border-radius:50px;padding:10px 24px;box-shadow:var(--shadow);border:1px solid var(--gray-border);display:flex;align-items:center;gap:8px;white-space:nowrap}
.about__photo-badge img{height:24px;width:auto}
.about__photo-badge span{font-size:12px;font-weight:700;color:var(--navy)}
.about__name-ja{font-size:28px;font-weight:900;color:var(--navy);margin-bottom:4px;letter-spacing:.05em}
.about__name-en{font-size:13px;color:var(--green);font-weight:600;letter-spacing:.15em;margin-bottom:6px}
.about__role{font-size:12px;color:var(--gray);letter-spacing:.1em;margin-bottom:28px}
.about__divider{width:40px;height:3px;background:linear-gradient(90deg,var(--green),var(--sky));border-radius:2px;margin-bottom:28px}
.about__text{font-size:15px;color:var(--gray);line-height:2.2;margin-bottom:20px}
.about__tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:24px}
.about__tag{background:var(--green-pale);color:var(--green-dark);padding:5px 14px;border-radius:50px;font-size:12px;font-weight:600;border:1px solid rgba(39,174,116,.2)}

/* ===== CONTACT ===== */
.contact{background:linear-gradient(135deg,var(--navy),var(--navy-mid));padding:96px 0;text-align:center;position:relative;overflow:hidden}
.contact::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 30% 50%,rgba(39,174,116,.12) 0%,transparent 60%)}
.contact::after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 70% 50%,rgba(125,200,67,.08) 0%,transparent 60%)}
.contact__inner{position:relative;z-index:1}
.contact__label{display:inline-block;background:rgba(39,174,116,.2);border:1px solid rgba(39,174,116,.35);color:#86efac;padding:4px 16px;border-radius:50px;font-size:12px;font-weight:700;letter-spacing:.08em;margin-bottom:16px}
.contact__title{font-size:clamp(22px,3vw,32px);font-weight:900;color:var(--white);margin-bottom:16px;line-height:1.4}
.contact__lead{color:rgba(255,255,255,.65);font-size:15px;margin-bottom:48px;line-height:2}
.contact__btns{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}
.btn-line{display:inline-flex;align-items:center;gap:10px;background:#06c755;color:var(--white);padding:18px 48px;border-radius:50px;font-weight:700;font-size:16px;box-shadow:0 4px 20px rgba(6,199,85,.4);transition:var(--transition)}
.btn-line:hover{background:#05a848;transform:translateY(-2px);box-shadow:0 8px 28px rgba(6,199,85,.45)}
.btn-line svg{flex-shrink:0}
.contact__note{margin-top:28px;font-size:12px;color:rgba(255,255,255,.35);line-height:2}
.contact__info{margin-top:48px;padding-top:40px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:center;gap:48px;flex-wrap:wrap}
.contact__info-item{text-align:center}
.contact__info-item__label{font-size:11px;letter-spacing:.15em;color:rgba(255,255,255,.35);margin-bottom:4px}
.contact__info-item__val{font-size:14px;color:rgba(255,255,255,.7);line-height:1.7}

/* ===== FOOTER ===== */
.footer{background:#0f1923;padding:48px 0 28px;text-align:center}
.footer__logo{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:16px}
.footer__logo img{height:32px;width:auto}
.footer__logo span{font-size:16px;font-weight:700;color:var(--white)}
.footer__info{font-size:12px;color:rgba(255,255,255,.3);line-height:2.2;margin-bottom:24px}
.footer__line{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:rgba(255,255,255,.4);margin-bottom:24px;transition:var(--transition)}
.footer__line:hover{color:var(--green)}
.footer__copy{font-size:11px;color:rgba(255,255,255,.2);border-top:1px solid rgba(255,255,255,.06);padding-top:24px}

/* ===== FADE-IN ===== */
.fade-in{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
  .container{padding:0 20px}
  .hero__inner{grid-template-columns:1fr;gap:40px}
  .hero__visual{order:-1}
  .nav a:not(.btn-nav){display:none}
  .services__grid{grid-template-columns:1fr}
  .reasons__grid{grid-template-columns:1fr}
  .flow__steps{grid-template-columns:1fr 1fr;gap:24px}
  .flow__steps::before{display:none}
  .about__inner{grid-template-columns:1fr;gap:48px}
  .about__photo-frame{height:360px}
  .contact__btns{flex-direction:column;align-items:center}
  .contact__info{gap:24px}
}