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

body {
  font-family: 'Inter', 'Roboto', sans-serif;
  background-color: #F5F7FA;
  color: #1e2a3a;
  line-height: 1.6;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

:root {
  --primary: #FF7A45;
  --primary-light: #ff9e7a;
  --mint: #00C9A7;
  --bg-light: #F5F7FA;
  --white: #FFFFFF;
  --gray-100: #f0f2f5;
  --gray-600: #5f6c80;
  --gradient-1: linear-gradient(135deg, #FF7A45, #ff9f7a, #b983ff);
  --gradient-2: linear-gradient(145deg, #6e8cff, #a97aff);
  --radius-md: 20px;
  --radius-lg: 32px;
  --radius-sm: 14px;
  --shadow-soft: 0 20px 35px -10px rgba(0,0,0,0.08);
  --backdrop-blur: blur(14px) saturate(180%);
}

button, .card, .bubble, input, textarea {
  border-radius: var(--radius-md);
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1rem 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255,255,255,0.5);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border-bottom: 1px solid rgba(255,255,255,0.3);
  z-index: 1000;
  transition: background 0.2s;
}
.navbar.scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.02);
}
.logo {
  font-weight: 700;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
  background: linear-gradient(130deg, #FF7A45, #b05eff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-menu {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}
.nav-menu a {
  text-decoration: none;
  font-weight: 500;
  color: #1e293b;
  font-size: 1rem;
  transition: 0.2s;
}
.nav-menu a:hover {
  color: var(--primary);
}
.nav-right .gradient-btn {
  background: var(--gradient-1);
  border: none;
  color: white;
  padding: 0.6rem 1.6rem;
  font-weight: 600;
  border-radius: 40px;
  cursor: pointer;
  box-shadow: 0 8px 18px -6px #ff7a4580;
  transition: 0.15s;
  border: 1px solid rgba(255,255,255,0.3);
}
.nav-right .gradient-btn:hover {
  transform: scale(1.02);
  box-shadow: 0 10px 22px -4px #ff7a45b3;
}
.hamburger {
  display: none;
  font-size: 1.8rem;
  color: var(--primary);
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    box-shadow: 0 20px 30px rgba(0,0,0,0.05);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  }
  .nav-menu.active {
    transform: translateX(0);
  }
  .hamburger {
    display: block;
  }
  .nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
  }
}

main {
  padding-top: 80px;
}
section {
  scroll-margin-top: 80px;
}

.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background-color: var(--bg-light);
}
#particle-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: auto;
}
.hero-content {
  position: relative;
  z-index: 5;
  max-width: 800px;
  padding: 2rem;
}
.hero h1 {
  font-size: 3.8rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(150deg, #1e2a3a, #FF7A45, #6236ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}
.hero .subhead {
  font-size: 1.4rem;
  margin: 1.5rem 0 2rem;
  color: #334155;
}
.cta-buttons {
  display: flex;
  gap: 1.2rem;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-primary {
  padding: 0.9rem 2.2rem;
  border-radius: 60px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--gradient-1);
  color: white;
  box-shadow: 0 10px 20px -8px #ff7a45cc;
}
.floating-bubbles {
  position: absolute;
  bottom: 10%;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  z-index: 4;
  pointer-events: none;
}
.bubble-word {
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(8px);
  padding: 0.6rem 1.8rem;
  border-radius: 80px;
  font-weight: 600;
  color: #1e2a3a;
  border: 1px solid rgba(255,122,69,0.2);
  box-shadow: 0 15px 25px -12px rgba(0,0,0,0.1);
  font-size: 1.1rem;
}

.idea-wall {
  background: var(--white);
  padding: 5rem 5%;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  margin-top: -2rem;
  position: relative;
}
.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
}
.section-sub {
  color: var(--gray-600);
  margin-bottom: 3rem;
  font-size: 1.2rem;
}
.wall-scroll {
  background: #f9fafc;
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-soft);
  max-height: 380px;
  overflow-y: auto;
  margin-bottom: 2.5rem;
}
.comment-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.comment-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: white;
  padding: 1.2rem;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 10px #e9edf2;
}
.avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(145deg, #FF7A45, #b3a0ff);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.comment-content {
  flex: 1;
}
.comment-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.25rem;
}
.nickname {
  font-weight: 700;
}
.role-tag {
  background: var(--mint);
  color: white;
  font-size: 0.7rem;
  padding: 0.2rem 0.7rem;
  border-radius: 40px;
}
.comment-text {
  margin: 0.25rem 0 0.4rem;
}
.like {
  color: #ff5e7c;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 4px;
}
.visitor-input-area {
  background: var(--white);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 25px #e0e6ed;
}
.flex-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.input-field {
  flex: 1 1 200px;
  padding: 1rem 1.2rem;
  border: 1px solid #dde2ea;
  border-radius: 60px;
  font-family: 'Inter', sans-serif;
}
.checkbox-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 1rem 0;
}
.mint-btn {
  background: var(--mint);
  color: white;
  border: none;
  padding: 0.9rem 2rem;
  border-radius: 60px;
  font-weight: 600;
  cursor: pointer;
}
.thank-toast {
  background: #00C9A7;
  color: white;
  padding: 0.8rem 2rem;
  border-radius: 60px;
  display: inline-block;
  margin-top: 1rem;
}

.core-services {
  background: var(--bg-light);
  padding: 5rem 5%;
  position: relative;
}
.rotor-container {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  margin: 3rem 0;
}
.rotor-circle {
  position: relative;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255,255,255,0.6);
  box-shadow: 0 30px 45px -20px #ccd8e6;
  flex-shrink: 0;
}
.rotor-item {
  position: absolute;
  width: 110px;
  text-align: center;
  font-weight: 800;
  font-size: 1.2rem;
  color: #2d3a4e;
  transition: all 0.2s;
  cursor: default;
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(4px);
  padding: 0.5rem 0.8rem;
  border-radius: 60px;
  border: 1px solid white;
  letter-spacing: 0.5px;
}
.rotor-item:hover {
  transform: scale(1.2);
  color: var(--primary);
  background: white;
  box-shadow: 0 10px 18px #ffdac8;
  border-color: var(--primary);
}
.rotor-item[data-index="0"] { top: 10%; left: 35%; }
.rotor-item[data-index="1"] { bottom: 15%; left: 15%; }
.rotor-item[data-index="2"] { bottom: 15%; right: 15%; }
.rotor-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
}
.keyword-chip {
  background: white;
  padding: 0.5rem 1.6rem;
  border-radius: 50px;
  border: 1px solid #dde2ea;
  font-weight: 500;
  cursor: pointer;
  transition: 0.1s;
  box-shadow: 0 2px 6px #eef2f6;
}
.keyword-chip.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}
.service-detail-panel {
  background: white;
  border-radius: var(--radius-lg);
  padding: 2rem;
  min-width: 260px;
  flex: 1 1 280px;
  box-shadow: var(--shadow-soft);
}
.service-detail-panel h3 {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}
.service-desc {
  margin: 1rem 0;
}
.user-quote {
  background: #f2f7ff;
  padding: 1rem;
  border-radius: 18px;
  font-style: italic;
  border-left: 4px solid var(--mint);
}
.learn-link {
  display: inline-block;
  margin-top: 1.2rem;
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
}

.floating-chat {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
}
.chat-bubble {
  width: 70px;
  height: 70px;
  background: var(--gradient-1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2rem;
  box-shadow: 0 15px 30px #ff7a4580;
  cursor: pointer;
  transition: 0.2s;
}
.chat-box {
  position: absolute;
  bottom: 90px;
  right: 0;
  width: 300px;
  background: white;
  border-radius: 28px;
  padding: 1.8rem;
  box-shadow: 0 25px 40px -12px #2f3e58;
  display: none;
}
.chat-box.show {
  display: block;
}
.chat-box input {
  width: 100%;
  padding: 1rem;
  border: 1px solid #d4deec;
  border-radius: 50px;
  margin: 0.8rem 0;
}
.chat-send {
  background: var(--gradient-2);
  color: white;
  border: none;
  padding: 0.8rem;
  width: 100%;
  border-radius: 60px;
  font-weight: 700;
}

footer {
  background: #1e2a3a;
  color: #aab7c9;
  padding: 3rem 5%;
  text-align: center;
  border-radius: 40px 40px 0 0;
}
.footer-addr, .footer-email {
  font-size: 1.2rem;
  margin: 0.5rem 0;
}
.footer-email a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px dashed #ff7a4580;
}

.hidden { display: none; }